Release: crash-7.3.2-5

Update to the latest upstream commit 47216437e79a ("Fix "net" command on
kernel configured with CONFIG_IPV6=m")

Resolves: rhbz#2166880
Resolves: rhbz#2161133
Resolves: rhbz#2158721
Resolves: rhbz#2156904
Resolves: rhbz#2156898
Resolves: rhbz#2156892
Resolves: rhbz#2156889
Resolves: rhbz#2156885
Resolves: rhbz#2152619

Signed-off-by: Lianbo Jiang <lijiang@redhat.com>

0001-ppc64-update-the-NR_CPUS-to-8192.patch

@@ -1,7 +1,7 @@
-From ae52398a13fa9a238279114ed671c7c514c154ee Mon Sep 17 00:00:00 2001
+From a48cebaa9691efe4e2c47bbd56d40ebc8acfa89e Mon Sep 17 00:00:00 2001
 From: Sourabh Jain <sourabhjain@linux.ibm.com>
 Date: Mon, 9 May 2022 12:49:56 +0530
-Subject: [PATCH 01/18] ppc64: update the NR_CPUS to 8192
+Subject: [PATCH 01/89] ppc64: update the NR_CPUS to 8192
 
 Since the kernel commit 2d8ae638bb86 ("powerpc: Make the NR_CPUS max 8192")
 the NR_CPUS on Linux kernel ranges from 1-8192. So let's match NR_CPUS with
@@ -14,7 +14,7 @@ Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/defs.h b/defs.h
-index 1e8360d65a3b..a6735d07b32f 100644
+index 89f57873f1a1..984348062bcb 100644
 --- a/defs.h
 +++ b/defs.h
 @@ -136,7 +136,7 @@
@@ -27,5 +27,5 @@ index 1e8360d65a3b..a6735d07b32f 100644
  #ifdef S390
  #define NR_CPUS  (512)
 -- 
-2.30.2
+2.37.1
 

0002-sbitmapq-remove-struct-and-member-validation-in-sbit.patch

@@ -1,7 +1,7 @@
-From 364b2e413c69daf189d2bc0238e3ba9b0dcbd937 Mon Sep 17 00:00:00 2001
+From d3682a7e57036b226d395541b590ebc460123b04 Mon Sep 17 00:00:00 2001
 From: Lianbo Jiang <lijiang@redhat.com>
 Date: Mon, 23 May 2022 18:04:13 +0800
-Subject: [PATCH 02/18] sbitmapq: remove struct and member validation in
+Subject: [PATCH 02/89] sbitmapq: remove struct and member validation in
  sbitmapq_init()
 
 Let's remove the struct and member validation from sbitmapq_init(), which
@@ -58,5 +58,5 @@ index 96a61e6c2c71..7693eef6cebd 100644
  }
  
 -- 
-2.30.2
+2.37.1
 

0003-sbitmapq-fix-invalid-offset-for-sbitmap_queue_alloc_.patch

@@ -1,7 +1,7 @@
-From a295cb40cd5d24fb5995cc78d29c5def3843d285 Mon Sep 17 00:00:00 2001
+From 0242075b6b4321419790f196c405c088394b9462 Mon Sep 17 00:00:00 2001
 From: Lianbo Jiang <lijiang@redhat.com>
 Date: Mon, 23 May 2022 18:04:14 +0800
-Subject: [PATCH 03/18] sbitmapq: fix invalid offset for
+Subject: [PATCH 03/89] sbitmapq: fix invalid offset for
  "sbitmap_queue_alloc_hint" on Linux v5.13-rc1
 
 Kernel commit c548e62bcf6a ("scsi: sbitmap: Move allocation hint
@@ -21,7 +21,7 @@ Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
  3 files changed, 16 insertions(+), 2 deletions(-)
 
 diff --git a/defs.h b/defs.h
-index a6735d07b32f..0aeb98c4f654 100644
+index 984348062bcb..8b4cc38f73bf 100644
 --- a/defs.h
 +++ b/defs.h
 @@ -2168,6 +2168,7 @@ struct offset_table {                    /* stash of commonly-used offsets */
@@ -32,7 +32,7 @@ index a6735d07b32f..0aeb98c4f654 100644
  };
  
  struct size_table {         /* stash of commonly-used sizes */
-@@ -5907,6 +5908,7 @@ struct sbitmap_context {
+@@ -5915,6 +5916,7 @@ struct sbitmap_context {
  	unsigned shift;
  	unsigned map_nr;
  	ulong map_addr;
@@ -101,10 +101,10 @@ index 7693eef6cebd..2921d5447c65 100644
  	MEMBER_OFFSET_INIT(sbitmap_queue_sb, "sbitmap_queue", "sb");
  	MEMBER_OFFSET_INIT(sbitmap_queue_alloc_hint, "sbitmap_queue", "alloc_hint");
 diff --git a/symbols.c b/symbols.c
-index ba5e2741347d..fd0eb06899f0 100644
+index 4afbc227da97..d5ce3e0873a1 100644
 --- a/symbols.c
 +++ b/symbols.c
-@@ -10708,6 +10708,8 @@ dump_offset_table(char *spec, ulong makestruct)
+@@ -10720,6 +10720,8 @@ dump_offset_table(char *spec, ulong makestruct)
  		OFFSET(sbitmap_map_nr));
  	fprintf(fp, "                   sbitmap_map: %ld\n",
  		OFFSET(sbitmap_map));
@@ -114,5 +114,5 @@ index ba5e2741347d..fd0eb06899f0 100644
  		OFFSET(sbitmap_queue_sb));
  	fprintf(fp, "      sbitmap_queue_alloc_hint: %ld\n",
 -- 
-2.30.2
+2.37.1
 

0004-sbitmapq-fix-invalid-offset-for-sbitmap_queue_round_.patch

@@ -1,7 +1,7 @@
-From 530fe6ad7e4d7ff6254596c1219d25ed929e3867 Mon Sep 17 00:00:00 2001
+From ccdf0e45c66ca0bbe3eb468c661b405971801c2e Mon Sep 17 00:00:00 2001
 From: Lianbo Jiang <lijiang@redhat.com>
 Date: Mon, 23 May 2022 18:04:15 +0800
-Subject: [PATCH 04/18] sbitmapq: fix invalid offset for
+Subject: [PATCH 04/89] sbitmapq: fix invalid offset for
  "sbitmap_queue_round_robin" on Linux v5.13-rc1
 
 Kernel commit efe1f3a1d583 ("scsi: sbitmap: Maintain allocation
@@ -22,7 +22,7 @@ Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
  3 files changed, 14 insertions(+), 2 deletions(-)
 
 diff --git a/defs.h b/defs.h
-index 0aeb98c4f654..ecbced24d2e3 100644
+index 8b4cc38f73bf..66f74f640d84 100644
 --- a/defs.h
 +++ b/defs.h
 @@ -2169,6 +2169,7 @@ struct offset_table {                    /* stash of commonly-used offsets */
@@ -33,7 +33,7 @@ index 0aeb98c4f654..ecbced24d2e3 100644
  };
  
  struct size_table {         /* stash of commonly-used sizes */
-@@ -5909,6 +5910,7 @@ struct sbitmap_context {
+@@ -5917,6 +5918,7 @@ struct sbitmap_context {
  	unsigned map_nr;
  	ulong map_addr;
  	ulong alloc_hint;
@@ -86,10 +86,10 @@ index 2921d5447c65..7b318b533702 100644
  	MEMBER_OFFSET_INIT(sbitmap_queue_sb, "sbitmap_queue", "sb");
  	MEMBER_OFFSET_INIT(sbitmap_queue_alloc_hint, "sbitmap_queue", "alloc_hint");
 diff --git a/symbols.c b/symbols.c
-index fd0eb06899f0..5d12a021c769 100644
+index d5ce3e0873a1..7431aaecec9d 100644
 --- a/symbols.c
 +++ b/symbols.c
-@@ -10710,6 +10710,8 @@ dump_offset_table(char *spec, ulong makestruct)
+@@ -10722,6 +10722,8 @@ dump_offset_table(char *spec, ulong makestruct)
  		OFFSET(sbitmap_map));
  	fprintf(fp, "            sbitmap_alloc_hint: %ld\n",
  		OFFSET(sbitmap_alloc_hint));
@@ -99,5 +99,5 @@ index fd0eb06899f0..5d12a021c769 100644
  		OFFSET(sbitmap_queue_sb));
  	fprintf(fp, "      sbitmap_queue_alloc_hint: %ld\n",
 -- 
-2.30.2
+2.37.1
 

0005-sbitmapq-fix-invalid-offset-for-sbitmap_word_depth-o.patch

@@ -1,7 +1,7 @@
-From 3750803f6ae5f5ad071f86ca916dbbb17b7a83a5 Mon Sep 17 00:00:00 2001
+From 0637e7bee77f127ff6a36fc7a9e52408a3106173 Mon Sep 17 00:00:00 2001
 From: Lianbo Jiang <lijiang@redhat.com>
 Date: Mon, 23 May 2022 18:04:16 +0800
-Subject: [PATCH 05/18] sbitmapq: fix invalid offset for "sbitmap_word_depth"
+Subject: [PATCH 05/89] sbitmapq: fix invalid offset for "sbitmap_word_depth"
  on Linux v5.18-rc1
 
 Kernel commit 3301bc53358a ("lib/sbitmap: kill 'depth' from sbitmap_word")
@@ -97,5 +97,5 @@ index 7b318b533702..e8ebd62fe01c 100644
  		scanned += depth;
  		word = w_word & ~w_cleared;
 -- 
-2.30.2
+2.37.1
 

0006-bt-x86_64-filter-out-idle-task-stack.patch

@@ -1,7 +1,7 @@
-From 6833262bf87177d8affe4f91b2e7d2c76ecdf636 Mon Sep 17 00:00:00 2001
+From 3ce590be037dc11c31a013e435484926276eee9f Mon Sep 17 00:00:00 2001
 From: Qi Zheng <zhengqi.arch@bytedance.com>
 Date: Tue, 24 May 2022 20:25:53 +0800
-Subject: [PATCH 07/18] bt: x86_64: filter out idle task stack
+Subject: [PATCH 06/89] bt: x86_64: filter out idle task stack
 
 When we use crash to troubleshoot softlockup and other problems,
 we often use the 'bt -a' command to print the stacks of running
@@ -62,10 +62,10 @@ Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
  4 files changed, 53 insertions(+), 2 deletions(-)
 
 diff --git a/defs.h b/defs.h
-index ecbced24d2e3..c8444b4e54eb 100644
+index 66f74f640d84..52e4b14aa27c 100644
 --- a/defs.h
 +++ b/defs.h
-@@ -5832,6 +5832,7 @@ ulong cpu_map_addr(const char *type);
+@@ -5840,6 +5840,7 @@ ulong cpu_map_addr(const char *type);
  #define BT_SHOW_ALL_REGS  (0x2000000000000ULL)
  #define BT_REGS_NOT_FOUND (0x4000000000000ULL)
  #define BT_OVERFLOW_STACK (0x8000000000000ULL)
@@ -74,10 +74,10 @@ index ecbced24d2e3..c8444b4e54eb 100644
  
  #define BT_REF_HEXVAL         (0x1)
 diff --git a/help.c b/help.c
-index 51a0fe3d687c..e1bbc5abe029 100644
+index 00712a690593..00c833da13cc 100644
 --- a/help.c
 +++ b/help.c
-@@ -1909,12 +1909,14 @@ char *help_bt[] = {
+@@ -1915,12 +1915,14 @@ char *help_bt[] = {
  "bt",
  "backtrace",
  "[-a|-c cpu(s)|-g|-r|-t|-T|-l|-e|-E|-f|-F|-o|-O|-v|-p] [-R ref] [-s [-x|d]]"
@@ -93,7 +93,7 @@ index 51a0fe3d687c..e1bbc5abe029 100644
  "       -p  display the stack trace of the panic task only.",
  "           (only applicable to crash dumps)",
  "   -c cpu  display the stack trace of the active task on one or more CPUs,",
-@@ -2004,6 +2006,35 @@ char *help_bt[] = {
+@@ -2010,6 +2012,35 @@ char *help_bt[] = {
  "       DS:  002b      ESI: bfffc8a0  ES:  002b      EDI: 00000000 ",
  "       SS:  002b      ESP: bfffc82c  EBP: bfffd224 ",
  "       CS:  0023      EIP: 400d032e  ERR: 0000008e  EFLAGS: 00000246  ",
@@ -130,7 +130,7 @@ index 51a0fe3d687c..e1bbc5abe029 100644
  "    %s> bt -c 0,1",
  "    PID: 0      TASK: ffffffff81a8d020  CPU: 0   COMMAND: \"swapper\"",
 diff --git a/kernel.c b/kernel.c
-index d0921cf567d9..411e9da1e54f 100644
+index 9ae7ee1ebe64..185b09335733 100644
 --- a/kernel.c
 +++ b/kernel.c
 @@ -2503,7 +2503,7 @@ cmd_bt(void)
@@ -168,10 +168,10 @@ index d0921cf567d9..411e9da1e54f 100644
  		bt->stkptr = esp;
  		return;
 diff --git a/x86_64.c b/x86_64.c
-index ecaefd2f46a8..cfafbcc4dabe 100644
+index 1305afd791a1..f4e5d9e77cef 100644
 --- a/x86_64.c
 +++ b/x86_64.c
-@@ -4918,6 +4918,9 @@ x86_64_get_stack_frame(struct bt_info *bt, ulong *pcp, ulong *spp)
+@@ -4915,6 +4915,9 @@ x86_64_get_stack_frame(struct bt_info *bt, ulong *pcp, ulong *spp)
  	if (bt->flags & BT_DUMPFILE_SEARCH)
  		return x86_64_get_dumpfile_stack_frame(bt, pcp, spp);
  
@@ -181,7 +181,7 @@ index ecaefd2f46a8..cfafbcc4dabe 100644
          if (pcp)
                  *pcp = x86_64_get_pc(bt);
          if (spp)
-@@ -4960,6 +4963,9 @@ x86_64_get_dumpfile_stack_frame(struct bt_info *bt_in, ulong *rip, ulong *rsp)
+@@ -4957,6 +4960,9 @@ x86_64_get_dumpfile_stack_frame(struct bt_info *bt_in, ulong *rip, ulong *rsp)
  	estack = -1;
  	panic = FALSE;
  
@@ -191,7 +191,7 @@ index ecaefd2f46a8..cfafbcc4dabe 100644
  	panic_task = tt->panic_task == bt->task ? TRUE : FALSE;
  
  	if (panic_task && bt->machdep) {
-@@ -5098,6 +5104,8 @@ next_sysrq:
+@@ -5095,6 +5101,8 @@ next_sysrq:
                  if (!panic_task && STREQ(sym, "crash_nmi_callback")) {
                          *rip = *up;
                          *rsp = bt->stackbase + ((char *)(up) - bt->stackbuf);
@@ -201,5 +201,5 @@ index ecaefd2f46a8..cfafbcc4dabe 100644
                  }
  
 -- 
-2.30.2
+2.37.1
 

0007-bt-arm64-add-support-for-bt-n-idle.patch

@@ -1,7 +1,7 @@
-From 0f162febebc4d11a165dd40cee00f3b0ba691a52 Mon Sep 17 00:00:00 2001
+From f436ae7f01db8ec13080f41a2754b2d282166ed7 Mon Sep 17 00:00:00 2001
 From: Qi Zheng <zhengqi.arch@bytedance.com>
 Date: Tue, 24 May 2022 20:25:54 +0800
-Subject: [PATCH 08/18] bt: arm64: add support for 'bt -n idle'
+Subject: [PATCH 07/89] bt: arm64: add support for 'bt -n idle'
 
 The '-n idle' option of bt command can help us filter the
 stack of the idle process when debugging the dumpfiles
@@ -65,10 +65,10 @@ index 65f6cdf69fa6..0f615cf52bef 100644
  	if (!ret)
  		error(WARNING, 
 diff --git a/help.c b/help.c
-index e1bbc5abe029..99214c1590fa 100644
+index 00c833da13cc..e1ac6f93fde2 100644
 --- a/help.c
 +++ b/help.c
-@@ -1915,7 +1915,7 @@ char *help_bt[] = {
+@@ -1921,7 +1921,7 @@ char *help_bt[] = {
  "       -a  displays the stack traces of the active task on each CPU.",
  "           (only applicable to crash dumps)",
  "       -A  same as -a, but also displays vector registers (S390X only).",
@@ -78,7 +78,7 @@ index e1bbc5abe029..99214c1590fa 100644
  "       -p  display the stack trace of the panic task only.",
  "           (only applicable to crash dumps)",
 diff --git a/kernel.c b/kernel.c
-index 411e9da1e54f..a521ef30cdb0 100644
+index 185b09335733..bd0bf8c6cf03 100644
 --- a/kernel.c
 +++ b/kernel.c
 @@ -2673,7 +2673,8 @@ cmd_bt(void)
@@ -92,5 +92,5 @@ index 411e9da1e54f..a521ef30cdb0 100644
  			else
  				option_not_supported(c);
 -- 
-2.30.2
+2.37.1
 

0008-Enhance-dev-d-D-options-to-support-blk-mq-sbitmap.patch

@@ -1,7 +1,7 @@
-From 7095c8fd029e3a33117e3b67de73f504686ebfe2 Mon Sep 17 00:00:00 2001
+From 0a988a8b46741aad6f2503163735ae72485cd04f Mon Sep 17 00:00:00 2001
 From: Lianbo Jiang <lijiang@redhat.com>
 Date: Thu, 2 Jun 2022 20:12:55 +0800
-Subject: [PATCH 10/18] Enhance "dev -d|-D" options to support blk-mq sbitmap
+Subject: [PATCH 08/89] Enhance "dev -d|-D" options to support blk-mq sbitmap
 
 Since Linux 5.16-rc1, which kernel commit 9a14d6ce4135 ("block: remove
 debugfs blk_mq_ctx dispatched/merged/completed attributes") removed the
@@ -19,7 +19,7 @@ Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
  3 files changed, 238 insertions(+), 39 deletions(-)
 
 diff --git a/defs.h b/defs.h
-index c8444b4e54eb..2681586a33dc 100644
+index 52e4b14aa27c..f2b6ab14c6aa 100644
 --- a/defs.h
 +++ b/defs.h
 @@ -2170,6 +2170,16 @@ struct offset_table {                    /* stash of commonly-used offsets */
@@ -337,10 +337,10 @@ index a493e51ac95c..4be4c96df8b0 100644
  	MEMBER_OFFSET_INIT(subsys_private_klist_devices, "subsys_private",
  		"klist_devices");
 diff --git a/symbols.c b/symbols.c
-index 5d12a021c769..c1f09556d710 100644
+index 7431aaecec9d..520debdb311e 100644
 --- a/symbols.c
 +++ b/symbols.c
-@@ -10385,6 +10385,12 @@ dump_offset_table(char *spec, ulong makestruct)
+@@ -10397,6 +10397,12 @@ dump_offset_table(char *spec, ulong makestruct)
  		OFFSET(kset_list));
  	fprintf(fp, "            request_list_count: %ld\n",
  		OFFSET(request_list_count));
@@ -353,7 +353,7 @@ index 5d12a021c769..c1f09556d710 100644
  	fprintf(fp, "       request_queue_in_flight: %ld\n",
  		OFFSET(request_queue_in_flight));
  	fprintf(fp, "              request_queue_rq: %ld\n",
-@@ -10393,10 +10399,25 @@ dump_offset_table(char *spec, ulong makestruct)
+@@ -10405,10 +10411,25 @@ dump_offset_table(char *spec, ulong makestruct)
  		OFFSET(request_queue_mq_ops));
  	fprintf(fp, "       request_queue_queue_ctx: %ld\n",
  		OFFSET(request_queue_queue_ctx));
@@ -379,7 +379,7 @@ index 5d12a021c769..c1f09556d710 100644
  	fprintf(fp, "  subsys_private_klist_devices: %ld\n",
  		OFFSET(subsys_private_klist_devices));
  	fprintf(fp, "                subsystem_kset: %ld\n",
-@@ -11003,6 +11024,7 @@ dump_offset_table(char *spec, ulong makestruct)
+@@ -11015,6 +11036,7 @@ dump_offset_table(char *spec, ulong makestruct)
  	fprintf(fp, "                       sbitmap: %ld\n", SIZE(sbitmap));
  	fprintf(fp, "                 sbitmap_queue: %ld\n", SIZE(sbitmap_queue));
  	fprintf(fp, "                sbq_wait_state: %ld\n", SIZE(sbq_wait_state));
@@ -388,5 +388,5 @@ index 5d12a021c769..c1f09556d710 100644
          fprintf(fp, "\n                   array_table:\n");
  	/*
 -- 
-2.30.2
+2.37.1
 

0009-Fix-for-dev-d-D-options-to-support-blk-mq-change-on-.patch

@@ -1,7 +1,7 @@
-From 68ce0b9a35d77d767872dd1a729c50e4695a30a8 Mon Sep 17 00:00:00 2001
+From 7b91ac6d20b741c1c8487a04d2b9d8aee5772471 Mon Sep 17 00:00:00 2001
 From: Lianbo Jiang <lijiang@redhat.com>
 Date: Thu, 2 Jun 2022 20:12:56 +0800
-Subject: [PATCH 11/18] Fix for "dev -d|-D" options to support blk-mq change on
+Subject: [PATCH 09/89] Fix for "dev -d|-D" options to support blk-mq change on
  Linux v5.18-rc1
 
 Kernel commit 4e5cc99e1e48 ("blk-mq: manage hctx map via xarray") removed
@@ -27,7 +27,7 @@ Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
  3 files changed, 36 insertions(+), 9 deletions(-)
 
 diff --git a/defs.h b/defs.h
-index 2681586a33dc..7d3b73422f48 100644
+index f2b6ab14c6aa..c524a05d8105 100644
 --- a/defs.h
 +++ b/defs.h
 @@ -2180,6 +2180,7 @@ struct offset_table {                    /* stash of commonly-used offsets */
@@ -104,10 +104,10 @@ index 4be4c96df8b0..0172c83ffaea 100644
  			"rq_dispatched");
  		MEMBER_OFFSET_INIT(blk_mq_ctx_rq_completed, "blk_mq_ctx",
 diff --git a/symbols.c b/symbols.c
-index c1f09556d710..bee1faf92c83 100644
+index 520debdb311e..69004a2e66e3 100644
 --- a/symbols.c
 +++ b/symbols.c
-@@ -10403,6 +10403,8 @@ dump_offset_table(char *spec, ulong makestruct)
+@@ -10415,6 +10415,8 @@ dump_offset_table(char *spec, ulong makestruct)
  		OFFSET(request_queue_queue_hw_ctx));
  	fprintf(fp, "    request_queue_nr_hw_queues: %ld\n",
  		OFFSET(request_queue_nr_hw_queues));
@@ -117,5 +117,5 @@ index c1f09556d710..bee1faf92c83 100644
  		OFFSET(blk_mq_ctx_rq_dispatched));
  	fprintf(fp, "       blk_mq_ctx_rq_completed: %ld\n",
 -- 
-2.30.2
+2.37.1
 

0010-Doc-update-man-page-for-the-bpf-and-sbitmapq-command.patch

@@ -1,7 +1,7 @@
-From c672d7a4c290712b32c54329cbdc1e74d122e813 Mon Sep 17 00:00:00 2001
+From 2d9e180858b3212507fcba7a7cb9d13f6a935a2f Mon Sep 17 00:00:00 2001
 From: Lianbo Jiang <lijiang@redhat.com>
 Date: Mon, 6 Jun 2022 19:09:16 +0800
-Subject: [PATCH 12/18] Doc: update man page for the "bpf" and "sbitmapq"
+Subject: [PATCH 10/89] Doc: update man page for the "bpf" and "sbitmapq"
  commands
 
 The information of the "bpf" and "sbitmapq" commands is missing in the man
@@ -39,5 +39,5 @@ index 1f3657b11e4c..e553a0b4adb3 100644
  searches a range of user or kernel memory space for given value.
  .TP
 -- 
-2.30.2
+2.37.1
 

0011-sbitmapq-Fix-for-sbitmap_queue-without-ws_active-mem.patch

@@ -1,7 +1,7 @@
-From 9ce31a14d1083cbb2beb4a8e6eb7b88234b79a99 Mon Sep 17 00:00:00 2001
+From aff3d6e19c9a9ffe4e5d55850aa42a4dc9cf0485 Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Fri, 10 Jun 2022 11:49:47 +0900
-Subject: [PATCH 13/18] sbitmapq: Fix for sbitmap_queue without ws_active
+Subject: [PATCH 11/89] sbitmapq: Fix for sbitmap_queue without ws_active
  member
 
 The sbitmap_queue.ws_active member was added by kernel commit 5d2ee7122c73
@@ -44,5 +44,5 @@ index e8ebd62fe01c..152c28e6875f 100644
  		sqc->round_robin = BOOL(sbitmap_queue_buf + OFFSET(sbitmap_queue_round_robin));
  	sqc->min_shallow_depth = UINT(sbitmap_queue_buf + OFFSET(sbitmap_queue_min_shallow_depth));
 -- 
-2.30.2
+2.37.1
 

0012-sbitmapq-Fix-for-sbitmap_word-without-cleared-member.patch

@@ -1,7 +1,7 @@
-From 0d3e86fee5eead93b521a0e20a0e099ede4ab72b Mon Sep 17 00:00:00 2001
+From 040e8be3b13746d1f64a36040b4ca613cf18eff0 Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Fri, 10 Jun 2022 11:49:47 +0900
-Subject: [PATCH 14/18] sbitmapq: Fix for sbitmap_word without cleared member
+Subject: [PATCH 12/89] sbitmapq: Fix for sbitmap_word without cleared member
 
 The sbitmap_word.cleared member was added by kernel commit ea86ea2cdced
 ("sbitmap: ammortize cost of clearing bits") at Linux 5.0.  Without the
@@ -106,5 +106,5 @@ index 152c28e6875f..c9f7209f9e3e 100644
  	fprintf(fp, "map_nr = %u\n", sc->map_nr);
  
 -- 
-2.30.2
+2.37.1
 

0013-sbitmapq-Fix-for-sbitmap_queue-without-min_shallow_d.patch

@@ -1,7 +1,7 @@
-From 12fe6c7cdd768f87ce6e903a2bbfb0c0591585c5 Mon Sep 17 00:00:00 2001
+From 8ea476439a57ee5552c752c582faf1d057ea4f6d Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Fri, 10 Jun 2022 11:49:47 +0900
-Subject: [PATCH 15/18] sbitmapq: Fix for sbitmap_queue without
+Subject: [PATCH 13/89] sbitmapq: Fix for sbitmap_queue without
  min_shallow_depth member
 
 The sbitmap_queue.min_shallow_depth member was added by kernel commit
@@ -45,5 +45,5 @@ index c9f7209f9e3e..bb2f19e6207b 100644
  	FREEBUF(sbitmap_queue_buf);
  }
 -- 
-2.30.2
+2.37.1
 

0014-Make-dev-d-D-options-parse-sbitmap-on-Linux-4.18-and.patch

@@ -1,7 +1,7 @@
-From c07068266b41450ca6821ee0a1a3adf34206015f Mon Sep 17 00:00:00 2001
+From 04b6edada1180b0391ddf980d09b4bac8a0c3aba Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Fri, 10 Jun 2022 15:21:53 +0900
-Subject: [PATCH 16/18] Make "dev -d|-D" options parse sbitmap on Linux 4.18
+Subject: [PATCH 14/89] Make "dev -d|-D" options parse sbitmap on Linux 4.18
  and later
 
 There have been a few reports that the "dev -d|-D" options displayed
@@ -80,5 +80,5 @@ index 0172c83ffaea..db97f8aebdc2 100644
  		sizeof(ulong), "request_queue.queue_ctx",
  		FAULT_ON_ERROR);
 -- 
-2.30.2
+2.37.1
 

0015-sbitmapq-Fix-for-kernels-without-struct-wait_queue_h.patch

@@ -1,7 +1,7 @@
-From 6bc3b74c6e2b0aaebe1bc164594e53b010efef56 Mon Sep 17 00:00:00 2001
+From 60af53c7b69df11dec05d2a396e5272856e4243d Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Fri, 10 Jun 2022 15:52:34 +0900
-Subject: [PATCH 17/18] sbitmapq: Fix for kernels without struct
+Subject: [PATCH 15/89] sbitmapq: Fix for kernels without struct
  wait_queue_head
 
 The current struct wait_queue_head was renamed by kernel commit
@@ -40,5 +40,5 @@ index bb2f19e6207b..be5d30a8ea88 100644
  	sbq_wait_state_buf = GETBUF(sbq_wait_state_size);
  
 -- 
-2.30.2
+2.37.1
 

0016-sbitmapq-Limit-kernels-without-sbitmap-again.patch

@@ -1,7 +1,7 @@
-From b8f2ae6b494d706b1e4855b439c4930a6a6a2f5c Mon Sep 17 00:00:00 2001
+From 46db4c6a66067d96248be664a09fdd93575cb0f2 Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Fri, 10 Jun 2022 16:00:14 +0900
-Subject: [PATCH 18/18] sbitmapq: Limit kernels without sbitmap again
+Subject: [PATCH 16/89] sbitmapq: Limit kernels without sbitmap again
 
 commit 364b2e413c69 ("sbitmapq: remove struct and member validation
 in sbitmapq_init()") allowed the use of the "sbitmapq" command
@@ -39,5 +39,5 @@ index be5d30a8ea88..12d6512a1e4d 100644
  	MEMBER_OFFSET_INIT(sbitmap_word_word, "sbitmap_word", "word");
  	MEMBER_OFFSET_INIT(sbitmap_word_cleared, "sbitmap_word", "cleared");
 -- 
-2.30.2
+2.37.1
 

0017-Fix-for-dev-command-on-Linux-5.11-and-later.patch

@@ -1,7 +1,7 @@
-From f623cad20b092002d627a03451ea256add2e53d0 Mon Sep 17 00:00:00 2001
+From b6b1f17766583873cde5335e6e631fe3887cb564 Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Wed, 15 Jun 2022 10:50:13 +0900
-Subject: [PATCH 01/28] Fix for "dev" command on Linux 5.11 and later
+Subject: [PATCH 17/89] Fix for "dev" command on Linux 5.11 and later
 
 The following kernel commits eventually removed the bdev_map array in
 Linux v5.11 kernel:

0018-Extend-field-length-of-task-attributes.patch

@@ -1,7 +1,7 @@
-From 6bc60e8cc87701c8f68c1cda56dd7120b5565700 Mon Sep 17 00:00:00 2001
+From 21c2bf4844893fe9499fda156d043b0ff6c5f3af Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Wed, 22 Jun 2022 08:32:59 +0900
-Subject: [PATCH 02/28] Extend field length of task attributes
+Subject: [PATCH 18/89] Extend field length of task attributes
 
 Nowadays, some machines have many CPU cores and memory, and some
 distributions have a larger kernel.pid_max parameter, e.g. 7 digits.

0019-ppc64-fix-bt-for-S-case.patch

@@ -1,7 +1,7 @@
-From 1c918c621e48f53ea69a143aabc59c8366102236 Mon Sep 17 00:00:00 2001
+From 00f8699daacba46fd706758024c375825264db32 Mon Sep 17 00:00:00 2001
 From: Hari Bathini <hbathini@linux.ibm.com>
 Date: Mon, 4 Jul 2022 10:55:41 +0530
-Subject: [PATCH 03/28] ppc64: fix bt for '-S' case
+Subject: [PATCH 19/89] ppc64: fix bt for '-S' case
 
 Passing '-S' option to 'bt' command was intended to specify the stack
 pointer manually. But get_stack_frame() handling on ppc64 is ignoring

0020-ppc64-dynamically-allocate-h-w-interrupt-stack.patch

@@ -1,7 +1,7 @@
-From 6a89173a25450b679e4a713793b2ed36b077fe56 Mon Sep 17 00:00:00 2001
+From 32282bab0edf1aebd96bb8fe5ee66b3855474831 Mon Sep 17 00:00:00 2001
 From: Hari Bathini <hbathini@linux.ibm.com>
 Date: Mon, 4 Jul 2022 10:55:42 +0530
-Subject: [PATCH 04/28] ppc64: dynamically allocate h/w interrupt stack
+Subject: [PATCH 20/89] ppc64: dynamically allocate h/w interrupt stack
 
 Only older kernel (v2.4) used h/w interrupt stack to store frames when
 CPU received IPI. Memory used for this in 'struct machine_specific' is

0021-ppc64-rename-ppc64_paca_init-to-ppc64_paca_percpu_of.patch

@@ -1,7 +1,7 @@
-From 4dbf7e296f6fde05894a55e23fbaf0d50e3b38b9 Mon Sep 17 00:00:00 2001
+From 275b62afe8fd7446fc31025998b6d0fd47ec8be0 Mon Sep 17 00:00:00 2001
 From: Hari Bathini <hbathini@linux.ibm.com>
 Date: Mon, 4 Jul 2022 10:55:43 +0530
-Subject: [PATCH 05/28] ppc64: rename ppc64_paca_init to
+Subject: [PATCH 21/89] ppc64: rename ppc64_paca_init to
  ppc64_paca_percpu_offset_init
 
 ppc64_paca_init() function is specifically used to initialize percpu

0022-ppc64-handle-backtrace-when-CPU-is-in-an-emergency-s.patch

@@ -1,7 +1,7 @@
-From f256095c61355d8db11502709ab3a084343f2bec Mon Sep 17 00:00:00 2001
+From 26b0949228786562fdf73fef145a829c0adb9c70 Mon Sep 17 00:00:00 2001
 From: Hari Bathini <hbathini@linux.ibm.com>
 Date: Mon, 4 Jul 2022 10:55:44 +0530
-Subject: [PATCH 06/28] ppc64: handle backtrace when CPU is in an emergency
+Subject: [PATCH 22/89] ppc64: handle backtrace when CPU is in an emergency
  stack
 
 A CPU could be in an emergency stack when it is running in real mode

0023-ppc64-print-emergency-stacks-info-with-mach-command.patch

@@ -1,7 +1,7 @@
-From 9429b15851f184fbff187d9a751451c9ed8ae5c9 Mon Sep 17 00:00:00 2001
+From 5ef39b9dda5ab29ddbbc72d54829ddbc66238518 Mon Sep 17 00:00:00 2001
 From: Hari Bathini <hbathini@linux.ibm.com>
 Date: Mon, 4 Jul 2022 10:55:45 +0530
-Subject: [PATCH 07/28] ppc64: print emergency stacks info with 'mach' command
+Subject: [PATCH 23/89] ppc64: print emergency stacks info with 'mach' command
 
 Print top address of emergency stacks with 'mach' command.
 

0024-ppc64-use-a-variable-for-machdep-machspec.patch

@@ -1,7 +1,7 @@
-From 656f0b50866247a2fdb2d0c917f0a7a3f34c2e7d Mon Sep 17 00:00:00 2001
+From 1365bde4820805457a35743be2dbb1035f4eeede Mon Sep 17 00:00:00 2001
 From: Hari Bathini <hbathini@linux.ibm.com>
 Date: Mon, 4 Jul 2022 10:55:46 +0530
-Subject: [PATCH 08/28] ppc64: use a variable for machdep->machspec
+Subject: [PATCH 24/89] ppc64: use a variable for machdep->machspec
 
 machdpep->machspec is referred to multiple times. The compiler would
 likely optimize this but nonetheless, use a variable to optimize in

0025-arm64-Fix-for-st-_stext_vmlinux-not-initialized-when.patch

@@ -1,7 +1,7 @@
-From b077c3569788f5eb5ddf85bf41026b452d253a90 Mon Sep 17 00:00:00 2001
+From ee5ab26db61025b2f5ed3a4b529394187df54d36 Mon Sep 17 00:00:00 2001
 From: Qianli Zhao <qianli.zhao@horizon.ai>
 Date: Mon, 4 Jul 2022 16:40:01 +0800
-Subject: [PATCH 09/28] arm64: Fix for st->_stext_vmlinux not initialized when
+Subject: [PATCH 25/89] arm64: Fix for st->_stext_vmlinux not initialized when
  set VA_BITS_ACTUAL
 
 Setting st->_stext_vmlinux to UNINITIALIZED to search for "_stext"

0026-Fix-gcc-11-compiler-warnings-on-filesys.c.patch

@@ -1,7 +1,7 @@
-From 6132fe21e0d5f2951c860f8850aeaacf1588dfb0 Mon Sep 17 00:00:00 2001
+From f141628a62b795f52a5d57f5d3e844b6a49114da Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Fri, 22 Jul 2022 13:44:50 +0900
-Subject: [PATCH 10/28] Fix gcc-11 compiler warnings on filesys.c
+Subject: [PATCH 26/89] Fix gcc-11 compiler warnings on filesys.c
 
 Without the patch, the following gcc-11 compiler warnings are emitted
 for filesys.c:

0027-Fix-gcc-11-compiler-warning-on-symbols.c.patch

@@ -1,7 +1,7 @@
-From 98484914b7f4ba34da0625baa0ed6d449c1fa3ad Mon Sep 17 00:00:00 2001
+From 12898df249a5db826d2390467aaadd49de29074e Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Fri, 22 Jul 2022 13:44:50 +0900
-Subject: [PATCH 11/28] Fix gcc-11 compiler warning on symbols.c
+Subject: [PATCH 27/89] Fix gcc-11 compiler warning on symbols.c
 
 Without the patch, the following gcc-11 compiler warning is emitted for
 symbols.c:

0028-Fix-gcc-11-compiler-warning-on-makedumpfile.c.patch

@@ -1,7 +1,7 @@
-From 9bb8a48d9424fc00ccd073125cdee9613b389cc6 Mon Sep 17 00:00:00 2001
+From 8d9e6c5b02c9c417264b76279b8f77b0995b6f74 Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Fri, 22 Jul 2022 13:44:50 +0900
-Subject: [PATCH 12/28] Fix gcc-11 compiler warning on makedumpfile.c
+Subject: [PATCH 28/89] Fix gcc-11 compiler warning on makedumpfile.c
 
 Without the patch, the following gcc-11 compiler warning is emitted for
 makedumpfile.c:

0029-Fix-gcc-11-compiler-warning-on-kvmdump.c.patch

@@ -1,7 +1,7 @@
-From 75739a08e952b6bd7434f4625a8fbe921361cbe8 Mon Sep 17 00:00:00 2001
+From 6618a57d40ff48726c26d54813f3f8090037760b Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Fri, 22 Jul 2022 13:44:50 +0900
-Subject: [PATCH 13/28] Fix gcc-11 compiler warning on kvmdump.c
+Subject: [PATCH 29/89] Fix gcc-11 compiler warning on kvmdump.c
 
 Without the patch, the following gcc-11 compiler warning is emitted for
 kvmdump.c:

0030-x86_64-Fix-for-AMD-SME-issue.patch

@@ -1,7 +1,7 @@
-From b584eb81ff27e42547d01c521b488aaeaa35b460 Mon Sep 17 00:00:00 2001
+From 59e9621ac2a7cb3f001fdab53c1e7e3590f8762d Mon Sep 17 00:00:00 2001
 From: Lianbo Jiang <lijiang@redhat.com>
 Date: Thu, 28 Jul 2022 15:11:20 +0800
-Subject: [PATCH 14/28] x86_64: Fix for AMD SME issue
+Subject: [PATCH 30/89] x86_64: Fix for AMD SME issue
 
 Kernel commit changes(see [1]/[2]) may cause the failure of crash-utility
 with the following error:

0031-Makefile-Fix-unnecessary-re-patching-with-coreutils-.patch

@@ -1,7 +1,7 @@
-From 619e36c18791333ee3a7fea759ce20396e711a46 Mon Sep 17 00:00:00 2001
+From 6be4f19f32bfa6d5a52580b733afca8a5b849c23 Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Mon, 22 Aug 2022 11:59:46 +0900
-Subject: [PATCH 15/28] Makefile: Fix unnecessary re-patching with
+Subject: [PATCH 31/89] Makefile: Fix unnecessary re-patching with
  coreutils-9.0
 
 "sum" command in coreutils-9.0 (e.g. Fedora 36) started to output a file
@@ -17,7 +17,7 @@ Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/Makefile b/Makefile
-index 059759b3e4ab..dd81df6c198c 100644
+index c031db4ca23f..2549d1d39273 100644
 --- a/Makefile
 +++ b/Makefile
 @@ -269,7 +269,7 @@ rebuild:

0032-arm64-use-TCR_EL1_T1SZ-to-get-the-correct-info-if-va.patch

@@ -1,7 +1,7 @@
-From 28a41ec7a471474094d8ab39f3a69b44d0f9ebcf Mon Sep 17 00:00:00 2001
+From 1bd4bd41e67dae5a970d34f33c566812f9f2c6af Mon Sep 17 00:00:00 2001
 From: Huang Shijie <shijie@os.amperecomputing.com>
 Date: Mon, 22 Aug 2022 09:29:32 +0000
-Subject: [PATCH 16/28] arm64: use TCR_EL1_T1SZ to get the correct info if
+Subject: [PATCH 32/89] arm64: use TCR_EL1_T1SZ to get the correct info if
  vabits_actual is missing
 
 After kernel commit 0d9b1ffefabe ("arm64: mm: make vabits_actual a build

0033-Fix-task-R-by-adding-end-identifier-for-union-in-tas.patch

@@ -1,7 +1,7 @@
-From c32abfea658ef33c20a942700277cb52baf95bfa Mon Sep 17 00:00:00 2001
+From 5df8fdf1f591176682e6fac18e6631c3a2aab1dc Mon Sep 17 00:00:00 2001
 From: Tao Liu <ltao@redhat.com>
 Date: Thu, 25 Aug 2022 14:39:44 +0800
-Subject: [PATCH 17/28] Fix "task -R" by adding end identifier for union in
+Subject: [PATCH 33/89] Fix "task -R" by adding end identifier for union in
  task_struct
 
 Previously, the start and end identifiers for union are "  {\n" and

0034-Let-gdb-get-kernel-module-symbols-info-from-crash.patch

@@ -1,7 +1,7 @@
-From 5948cb9b3e622e3c87216c7c6479f509c8aeb7c1 Mon Sep 17 00:00:00 2001
+From 38064b8d5866f8a4f7e7867f187ad95e67f16209 Mon Sep 17 00:00:00 2001
 From: Tao Liu <ltao@redhat.com>
 Date: Wed, 16 Nov 2022 17:36:03 +0800
-Subject: [PATCH 18/28] Let gdb get kernel module symbols info from crash
+Subject: [PATCH 34/89] Let gdb get kernel module symbols info from crash
 
 Gdb will try to resolve an address to its corresponding symbol name such as
 when printing a structure. It works fine for kernel symbols, because gdb can
@@ -65,7 +65,7 @@ index f8fbfdfd1152..b7d76330141a 100644
  void restore_gdb_sanity(void);
  int is_gdb_command(int, ulong);
 diff --git a/gdb-7.6.patch b/gdb-7.6.patch
-index c63ad7d81cb0..f1c3aa734241 100644
+index c63ad7d81cb0..d0becd055666 100644
 --- a/gdb-7.6.patch
 +++ b/gdb-7.6.patch
 @@ -2568,3 +2568,36 @@ diff -up gdb-7.6/opcodes/configure.orig gdb-7.6/opcodes/configure
@@ -106,7 +106,7 @@ index c63ad7d81cb0..f1c3aa734241 100644
 +   /* If the nearest symbol is too far away, don't print anything symbolic.  */
 +
 diff --git a/gdb_interface.c b/gdb_interface.c
-index 1f10006a2d63..f9d0018998df 100644
+index 1f10006a2d63..95298a94c702 100644
 --- a/gdb_interface.c
 +++ b/gdb_interface.c
 @@ -945,6 +945,18 @@ gdb_print_callback(ulong addr)

0035-x86_64-Correct-the-identifier-when-locating-the-call.patch

@@ -1,7 +1,7 @@
-From 93cd670426aaf4951bceb8f24f0ce63c24e16f5d Mon Sep 17 00:00:00 2001
+From 6a766b5159ebb971a399bb32a8a58599df977cdb Mon Sep 17 00:00:00 2001
 From: Tao Liu <ltao@redhat.com>
 Date: Wed, 16 Nov 2022 20:09:22 +0800
-Subject: [PATCH 19/28] x86_64: Correct the identifier when locating the call
+Subject: [PATCH 35/89] x86_64: Correct the identifier when locating the call
  instruction
 
 The previous implementation to locate the call instruction is

0036-Add-debian-ubuntu-vmlinux-location-to-default-search.patch

@@ -1,7 +1,7 @@
-From 931ea86070e9b56bf698ae3a4f20647d42325d6d Mon Sep 17 00:00:00 2001
+From 792730b32cb15b59af2833cfd6819b8408b20e89 Mon Sep 17 00:00:00 2001
 From: "Chunguang.Xu" <chunguang.xu@shopee.com>
 Date: Thu, 25 Aug 2022 12:07:20 +0800
-Subject: [PATCH 20/28] Add debian/ubuntu vmlinux location to default search
+Subject: [PATCH 36/89] Add debian/ubuntu vmlinux location to default search
  dirs
 
 Now crash cannot find debian/ubuntu kernel vmlinux, we need to

0037-Fix-gcc-12-compiler-warnings-on-lkcd_-.c.patch

@@ -1,7 +1,7 @@
-From a4f8fe965e1ed0d27aff0cdf30e2c571da2e5356 Mon Sep 17 00:00:00 2001
+From 1312fdbc514dc47e591b2d94994c6f467581c6f1 Mon Sep 17 00:00:00 2001
 From: Kazuhito Hagio <k-hagio-ab@nec.com>
 Date: Thu, 1 Sep 2022 14:03:09 +0900
-Subject: [PATCH 21/28] Fix gcc-12 compiler warnings on lkcd_*.c
+Subject: [PATCH 37/89] Fix gcc-12 compiler warnings on lkcd_*.c
 
 Without the patch, the following gcc-12 compiler warnings are emitted
 for lkcd_*.c:

0038-Fix-for-the-invalid-linux_banner-pointer-issue.patch

@@ -1,7 +1,7 @@
-From 598377606649ee3cdcc1694d975bed27005612ee Mon Sep 17 00:00:00 2001
+From 61e5c455516622cabf4a01c1643ca2175ef9510c Mon Sep 17 00:00:00 2001
 From: Lianbo Jiang <lijiang@redhat.com>
 Date: Wed, 16 Nov 2022 20:46:48 +0800
-Subject: [PATCH 22/28] Fix for the invalid linux_banner pointer issue
+Subject: [PATCH 38/89] Fix for the invalid linux_banner pointer issue
 
 Currently, crash may fail with the following error:
 

0039-Fix-kmem-failing-to-print-task-context-when-address-.patch

@@ -1,7 +1,7 @@
-From 488896b1ab0ca8bc4cc6aa608b6ee1744ae480e7 Mon Sep 17 00:00:00 2001
+From a72184ebeec704158a2b225fa7fe0869b9b93a93 Mon Sep 17 00:00:00 2001
 From: Tao Liu <ltao@redhat.com>
 Date: Mon, 19 Sep 2022 17:49:21 +0800
-Subject: [PATCH 23/28] Fix "kmem" failing to print task context when address
+Subject: [PATCH 39/89] Fix "kmem" failing to print task context when address
  is vmalloced stack
 
 When kernel enabled CONFIG_VMAP_STACK, stack can be allocated to
@@ -38,7 +38,7 @@ Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
  1 file changed, 4 insertions(+)
 
 diff --git a/memory.c b/memory.c
-index a31a430e2823..e44b59d2e805 100644
+index 7339f0cd0224..9ab578134fa1 100644
 --- a/memory.c
 +++ b/memory.c
 @@ -13477,6 +13477,10 @@ kmem_search(struct meminfo *mi)

0040-Fix-page-offset-issue-when-converting-physical-to-vi.patch

@@ -1,7 +1,7 @@
-From d0726d96b92e5dacd1df56756e168a50a4e62589 Mon Sep 17 00:00:00 2001
+From f18c391b650ace3cea6e48278b969425a328e4cf Mon Sep 17 00:00:00 2001
 From: Tao Liu <ltao@redhat.com>
 Date: Mon, 19 Sep 2022 17:49:22 +0800
-Subject: [PATCH 24/28] Fix page offset issue when converting physical to
+Subject: [PATCH 40/89] Fix page offset issue when converting physical to
  virtual address
 
 When trying to convert a physical address to its virtual
@@ -23,7 +23,7 @@ Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
  1 file changed, 2 insertions(+), 2 deletions(-)
 
 diff --git a/memory.c b/memory.c
-index e44b59d2e805..a60c3f9493f6 100644
+index 9ab578134fa1..1b6f9ba17e57 100644
 --- a/memory.c
 +++ b/memory.c
 @@ -8861,7 +8861,7 @@ dump_vmlist(struct meminfo *vi)

0041-Let-kmem-print-task-context-with-physical-address.patch

@@ -1,7 +1,7 @@
-From 74759e0e9736e86c7d2439bfe74ca5eb51b0a52b Mon Sep 17 00:00:00 2001
+From 2c24770e3ceab8eebd9788256967b79145f53123 Mon Sep 17 00:00:00 2001
 From: Tao Liu <ltao@redhat.com>
 Date: Mon, 19 Sep 2022 17:49:23 +0800
-Subject: [PATCH 25/28] Let "kmem" print task context with physical address
+Subject: [PATCH 41/89] Let "kmem" print task context with physical address
 
 Patch [1] enables "kmem" to print task context if the given virtual
 address is a vmalloced stack.
@@ -43,7 +43,7 @@ Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
  1 file changed, 6 insertions(+), 2 deletions(-)
 
 diff --git a/memory.c b/memory.c
-index a60c3f9493f6..ff6b571361eb 100644
+index 1b6f9ba17e57..c80ef61bdcf7 100644
 --- a/memory.c
 +++ b/memory.c
 @@ -13506,6 +13506,10 @@ kmem_search(struct meminfo *mi)

0042-ppc64-still-allow-to-move-on-if-the-emergency-stacks.patch

@@ -1,7 +1,7 @@
-From edbd19bb260f7a98bc9e0b49fe2f0b8214885797 Mon Sep 17 00:00:00 2001
+From e39a2560928ef6f7e8dad80cb9a7521bdf0495e3 Mon Sep 17 00:00:00 2001
 From: Lianbo Jiang <lijiang@redhat.com>
 Date: Tue, 4 Oct 2022 18:57:11 +0800
-Subject: [PATCH 26/28] ppc64: still allow to move on if the emergency stacks
+Subject: [PATCH 42/89] ppc64: still allow to move on if the emergency stacks
  info fails to initialize
 
 Currently crash will fail and then exit, if the initialization of

0043-Fix-segmentation-fault-in-page_flags_init_from_pagef.patch

@@ -1,7 +1,7 @@
-From cdcf2d3f4c69ffa8a29b70120ee4fca6e390123b Mon Sep 17 00:00:00 2001
+From 975265a8056566ace8eaa6cf532fd42754e915a9 Mon Sep 17 00:00:00 2001
 From: Matias Ezequiel Vara Larsen <matiasevara@gmail.com>
 Date: Mon, 24 Oct 2022 11:35:29 +0200
-Subject: [PATCH 27/28] Fix segmentation fault in
+Subject: [PATCH 43/89] Fix segmentation fault in
  page_flags_init_from_pageflag_names()
 
 When read_string() fails in page_flags_init_from_pageflag_names(),
@@ -22,7 +22,7 @@ Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/memory.c b/memory.c
-index ff6b571361eb..ddbf458277f0 100644
+index c80ef61bdcf7..8724c4aa3d8a 100644
 --- a/memory.c
 +++ b/memory.c
 @@ -6599,7 +6599,7 @@ page_flags_init_from_pageflag_names(void)

0044-Fix-for-ps-vm-commands-to-display-correct-MEM-and-RS.patch

@@ -1,7 +1,7 @@
-From 74fe453f2b5ddf1e1571d006d486cb214817a0ed Mon Sep 17 00:00:00 2001
+From 4a6f318a39f78648a3bb13d74e31e3a331254e30 Mon Sep 17 00:00:00 2001
 From: Lianbo Jiang <lijiang@redhat.com>
 Date: Wed, 9 Nov 2022 14:21:57 +0800
-Subject: [PATCH 28/28] Fix for "ps/vm" commands to display correct %MEM and
+Subject: [PATCH 44/89] Fix for "ps/vm" commands to display correct %MEM and
  RSS values
 
 The ps/vm commands may print the bogus value of the %MEM and RSS, the
@@ -25,7 +25,7 @@ Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
  1 file changed, 18 insertions(+), 5 deletions(-)
 
 diff --git a/memory.c b/memory.c
-index ddbf458277f0..2167281b6039 100644
+index 8724c4aa3d8a..9c15c1b745ef 100644
 --- a/memory.c
 +++ b/memory.c
 @@ -4714,18 +4714,29 @@ get_task_mem_usage(ulong task, struct task_mem_usage *tm)

0045-ps-Provide-an-option-to-display-no-header-line.patch

@@ -0,0 +1,72 @@
+From acd2b8a54e4532f859173fe9f0d1b92b44cbc848 Mon Sep 17 00:00:00 2001
+From: Aaron Tomlin <atomlin@redhat.com>
+Date: Tue, 29 Nov 2022 14:05:26 +0000
+Subject: [PATCH 45/89] ps: Provide an option to display no header line
+
+One might often find it useful to redirect/or filter the output
+generated by the 'ps' command. This simple patch provides an option
+(i.e. '-H') to display no header line so it does not need to be
+considered e.g.
+
+crash> ps -u -H | head -5
+        1       0   1  ffff956e8028d280  IN   0.0   174276     9272  systemd
+     1067       1   2  ffff956e81380000  IN   0.1    59480    15788  systemd-journal
+     1080       1   0  ffff956e8d152940  IN   0.0    36196     3548  systemd-udevd
+     1278       1   6  ffff956e8aa60000  IN   0.0    17664     3072  systemd-oomd
+     1366       1   7  ffff956e88548000  IN   0.0    10868     2328  dbus-broker-lau
+
+Signed-off-by: Aaron Tomlin <atomlin@atomlin.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ help.c | 3 ++-
+ task.c | 6 +++++-
+ 2 files changed, 7 insertions(+), 2 deletions(-)
+
+diff --git a/help.c b/help.c
+index e1ac6f93fde2..2cb570b244f4 100644
+--- a/help.c
++++ b/help.c
+@@ -1385,7 +1385,7 @@ NULL
+ char *help_ps[] = {
+ "ps",
+ "display process status information",
+-"[-k|-u|-G|-y policy] [-s] [-p|-c|-t|-[l|m][-C cpu]|-a|-g|-r|-S|-A]\n     [pid | task | command] ...",
++"[-k|-u|-G|-y policy] [-s] [-p|-c|-t|-[l|m][-C cpu]|-a|-g|-r|-S|-A|-H]\n     [pid | task | command] ...",
+ "  This command displays process status for selected, or all, processes" ,
+ "  in the system.  If no arguments are entered, the process data is",
+ "  is displayed for all processes.  Specific processes may be selected",
+@@ -1464,6 +1464,7 @@ char *help_ps[] = {
+ "       -r  display resource limits (rlimits) of selected, or all, tasks.",
+ "       -S  display a summary consisting of the number of tasks in a task state.",
+ "       -A  display only the active task on each cpu.",
++"       -H  display no header line.",
+ "\nEXAMPLES",
+ "  Show the process status of all current tasks:\n",
+ "    %s> ps",
+diff --git a/task.c b/task.c
+index db2abc8106a2..88941c7b0e4d 100644
+--- a/task.c
++++ b/task.c
+@@ -3504,7 +3504,7 @@ cmd_ps(void)
+ 	cpuspec = NULL;
+ 	flag = 0;
+ 
+-        while ((c = getopt(argcnt, args, "ASgstcpkuGlmarC:y:")) != EOF) {
++        while ((c = getopt(argcnt, args, "HASgstcpkuGlmarC:y:")) != EOF) {
+                 switch(c)
+ 		{
+ 		case 'k':
+@@ -3615,6 +3615,10 @@ cmd_ps(void)
+ 			flag |= PS_ACTIVE;
+ 			break;
+ 
++		case 'H':
++			flag |= PS_NO_HEADER;
++			break;
++
+ 		default:
+ 			argerrs++;
+ 			break;
+-- 
+2.37.1
+

0046-arm64-fix-backtraces-of-KASAN-kernel-dumpfile-trunca.patch

@@ -0,0 +1,150 @@
+From 6122f0d067ed5c522ad11fb91b6db3ea1d34f355 Mon Sep 17 00:00:00 2001
+From: Ding Hui <dinghui@sangfor.com.cn>
+Date: Thu, 1 Dec 2022 15:01:45 +0800
+Subject: [PATCH 46/89] arm64: fix backtraces of KASAN kernel dumpfile
+ truncated
+
+We met "bt" command on KASAN kernel vmcore display truncated backtraces
+like this:
+
+  crash> bt
+  PID: 4131   TASK: ffff8001521df000  CPU: 3   COMMAND: "bash"
+   #0 [ffff2000224b0cb0] machine_kexec_prepare at ffff2000200bff4c
+
+After digging the root cause, it turns out that arm64_in_kdump_text()
+found wrong bt->bptr at "machine_kexec" branch.
+
+Disassemble machine_kexec() of KASAN vmlinux (gcc 7.3.0):
+
+  crash> dis -x machine_kexec
+  0xffff2000200bff50 <machine_kexec>:     stp     x29, x30, [sp,#-208]!
+  0xffff2000200bff54 <machine_kexec+0x4>: mov     x29, sp
+  0xffff2000200bff58 <machine_kexec+0x8>: stp     x19, x20, [sp,#16]
+  0xffff2000200bff5c <machine_kexec+0xc>: str     x24, [sp,#56]
+  0xffff2000200bff60 <machine_kexec+0x10>:        str     x26, [sp,#72]
+  0xffff2000200bff64 <machine_kexec+0x14>:        mov     x2, #0x8ab3
+  0xffff2000200bff68 <machine_kexec+0x18>:        add     x1, x29, #0x70
+  0xffff2000200bff6c <machine_kexec+0x1c>:        lsr     x1, x1, #3
+  0xffff2000200bff70 <machine_kexec+0x20>:        movk    x2, #0x41b5, lsl #16
+  0xffff2000200bff74 <machine_kexec+0x24>:        mov     x19, #0x200000000000
+  0xffff2000200bff78 <machine_kexec+0x28>:        adrp    x3, 0xffff2000224b0000
+  0xffff2000200bff7c <machine_kexec+0x2c>:        movk    x19, #0xdfff, lsl #48
+  0xffff2000200bff80 <machine_kexec+0x30>:        add     x3, x3, #0xcb0
+  0xffff2000200bff84 <machine_kexec+0x34>:        add     x4, x1, x19
+  0xffff2000200bff88 <machine_kexec+0x38>:        stp     x2, x3, [x29,#112]
+  0xffff2000200bff8c <machine_kexec+0x3c>:        adrp    x2, 0xffff2000200bf000 <swsusp_arch_resume+0x1e8>
+  0xffff2000200bff90 <machine_kexec+0x40>:        add     x2, x2, #0xf50
+  0xffff2000200bff94 <machine_kexec+0x44>:        str     x2, [x29,#128]
+  0xffff2000200bff98 <machine_kexec+0x48>:        mov     w2, #0xf1f1f1f1
+  0xffff2000200bff9c <machine_kexec+0x4c>:        str     w2, [x1,x19]
+  0xffff2000200bffa0 <machine_kexec+0x50>:        mov     w2, #0xf200
+  0xffff2000200bffa4 <machine_kexec+0x54>:        mov     w1, #0xf3f3f3f3
+  0xffff2000200bffa8 <machine_kexec+0x58>:        movk    w2, #0xf2f2, lsl #16
+  0xffff2000200bffac <machine_kexec+0x5c>:        stp     w2, w1, [x4,#4]
+
+We notice that:
+1. machine_kexec() start address is 0xffff2000200bff50
+2. the instruction at machine_kexec+0x44 stores the same value
+   0xffff2000200bff50 (comes from 0xffff2000200bf000 + 0xf50)
+   into stack postion [x29,#128].
+
+When arm64_in_kdump_text() searches for LR from stack, it met
+0xffff2000200bff50 firstly, so got wrong bt->bptr.
+
+We know that the real LR is always greater than the start address
+of a function, so let's fix it by changing the search conditon to
+(*ptr > xxx_start) && (*ptr < xxx_end).
+
+Signed-off-by: Ding Hui <dinghui@sangfor.com.cn>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ arm64.c | 18 +++++++++---------
+ 1 file changed, 9 insertions(+), 9 deletions(-)
+
+diff --git a/arm64.c b/arm64.c
+index c3e26a371a61..7e8a7db1fcc4 100644
+--- a/arm64.c
++++ b/arm64.c
+@@ -3479,7 +3479,7 @@ arm64_in_kdump_text(struct bt_info *bt, struct arm64_stackframe *frame)
+ 	ms = machdep->machspec;
+ 	for (ptr = start - 8; ptr >= base; ptr--) {
+ 		if (bt->flags & BT_OPT_BACK_TRACE) {
+-			if ((*ptr >= ms->crash_kexec_start) &&
++			if ((*ptr > ms->crash_kexec_start) &&
+ 			    (*ptr < ms->crash_kexec_end) &&
+ 			    INSTACK(*(ptr - 1), bt)) {
+ 				bt->bptr = ((ulong)(ptr - 1) - (ulong)base)
+@@ -3488,7 +3488,7 @@ arm64_in_kdump_text(struct bt_info *bt, struct arm64_stackframe *frame)
+ 					fprintf(fp, "%lx: %lx (crash_kexec)\n", bt->bptr, *ptr);
+ 				return TRUE;
+ 			}
+-			if ((*ptr >= ms->crash_save_cpu_start) &&
++			if ((*ptr > ms->crash_save_cpu_start) &&
+ 			    (*ptr < ms->crash_save_cpu_end) &&
+ 			    INSTACK(*(ptr - 1), bt)) {
+ 				bt->bptr = ((ulong)(ptr - 1) - (ulong)base)
+@@ -3498,14 +3498,14 @@ arm64_in_kdump_text(struct bt_info *bt, struct arm64_stackframe *frame)
+ 				return TRUE;
+ 			}
+ 		} else {
+-			if ((*ptr >= ms->machine_kexec_start) && (*ptr < ms->machine_kexec_end)) {
++			if ((*ptr > ms->machine_kexec_start) && (*ptr < ms->machine_kexec_end)) {
+ 				bt->bptr = ((ulong)ptr - (ulong)base)
+ 					   + task_to_stackbase(bt->tc->task);
+ 				if (CRASHDEBUG(1))
+ 					fprintf(fp, "%lx: %lx (machine_kexec)\n", bt->bptr, *ptr);
+ 				return TRUE;
+ 			}
+-			if ((*ptr >= ms->crash_kexec_start) && (*ptr < ms->crash_kexec_end)) {
++			if ((*ptr > ms->crash_kexec_start) && (*ptr < ms->crash_kexec_end)) {
+ 				/*
+ 				 *  Stash the first crash_kexec frame in case the machine_kexec
+ 				 *  frame is not found.
+@@ -3519,7 +3519,7 @@ arm64_in_kdump_text(struct bt_info *bt, struct arm64_stackframe *frame)
+ 				}
+ 				continue;
+ 			}
+-			if ((*ptr >= ms->crash_save_cpu_start) && (*ptr < ms->crash_save_cpu_end)) {
++			if ((*ptr > ms->crash_save_cpu_start) && (*ptr < ms->crash_save_cpu_end)) {
+ 				bt->bptr = ((ulong)ptr - (ulong)base)
+ 					   + task_to_stackbase(bt->tc->task);
+ 				if (CRASHDEBUG(1))
+@@ -3566,7 +3566,7 @@ arm64_in_kdump_text_on_irq_stack(struct bt_info *bt)
+ 
+ 	for (ptr = start - 8; ptr >= base; ptr--) {
+ 		if (bt->flags & BT_OPT_BACK_TRACE) {
+-			if ((*ptr >= ms->crash_kexec_start) &&
++			if ((*ptr > ms->crash_kexec_start) &&
+ 			    (*ptr < ms->crash_kexec_end) &&
+ 			    INSTACK(*(ptr - 1), bt)) {
+ 				bt->bptr = ((ulong)(ptr - 1) - (ulong)base) + stackbase;
+@@ -3576,7 +3576,7 @@ arm64_in_kdump_text_on_irq_stack(struct bt_info *bt)
+ 				FREEBUF(stackbuf);
+ 				return TRUE;
+ 			}
+-			if ((*ptr >= ms->crash_save_cpu_start) &&
++			if ((*ptr > ms->crash_save_cpu_start) &&
+ 			    (*ptr < ms->crash_save_cpu_end) &&
+ 			    INSTACK(*(ptr - 1), bt)) {
+ 				bt->bptr = ((ulong)(ptr - 1) - (ulong)base) + stackbase;
+@@ -3587,7 +3587,7 @@ arm64_in_kdump_text_on_irq_stack(struct bt_info *bt)
+ 				return TRUE;
+ 			}
+ 		} else {
+-			if ((*ptr >= ms->crash_kexec_start) && (*ptr < ms->crash_kexec_end)) {
++			if ((*ptr > ms->crash_kexec_start) && (*ptr < ms->crash_kexec_end)) {
+ 				bt->bptr = ((ulong)ptr - (ulong)base) + stackbase;
+ 				if (CRASHDEBUG(1))
+ 					fprintf(fp, "%lx: %lx (crash_kexec on IRQ stack)\n", 
+@@ -3595,7 +3595,7 @@ arm64_in_kdump_text_on_irq_stack(struct bt_info *bt)
+ 				FREEBUF(stackbuf);
+ 				return TRUE;
+ 			}
+-			if ((*ptr >= ms->crash_save_cpu_start) && (*ptr < ms->crash_save_cpu_end)) {
++			if ((*ptr > ms->crash_save_cpu_start) && (*ptr < ms->crash_save_cpu_end)) {
+ 				bt->bptr = ((ulong)ptr - (ulong)base) + stackbase;
+ 				if (CRASHDEBUG(1))
+ 					fprintf(fp, "%lx: %lx (crash_save_cpu on IRQ stack)\n", 
+-- 
+2.37.1
+

0047-arm64-handle-vabits_actual-symbol-missing-case.patch

@@ -0,0 +1,37 @@
+From 69786ee12c4842d2cbd39ea42df65c45fb043edd Mon Sep 17 00:00:00 2001
+From: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
+Date: Thu, 8 Dec 2022 09:55:07 +0530
+Subject: [PATCH 47/89] arm64: handle vabits_actual symbol missing case
+
+After kernel commit 0d9b1ffefabe ("arm64: mm: make vabits_actual
+a build time constant if possible") introduced in Linux v5.19,
+the crash will not find vabits_actual symbol if VA_BITS <= 48.
+Add a fallback option to initialize VA_BITS based on the user
+supplied machdep option.
+
+Tested ramdumps loading in both 6.0 and 5.15 kernels.
+
+Signed-off-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ arm64.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/arm64.c b/arm64.c
+index 7e8a7db1fcc4..56fb841f43f8 100644
+--- a/arm64.c
++++ b/arm64.c
+@@ -4671,6 +4671,10 @@ arm64_calc_VA_BITS(void)
+ 		return;
+ 	} else if (arm64_set_va_bits_by_tcr()) {
+ 		return;
++	} else if (machdep->machspec->VA_BITS_ACTUAL) {
++		machdep->machspec->VA_BITS = machdep->machspec->VA_BITS_ACTUAL;
++		machdep->machspec->VA_START = _VA_START(machdep->machspec->VA_BITS_ACTUAL);
++		return;
+ 	}
+ 
+ 	if (!(sp = symbol_search("swapper_pg_dir")) &&
+-- 
+2.37.1
+

0048-x86_64-Fix-for-move-of-per-cpu-variables-into-struct.patch

@@ -0,0 +1,144 @@
+From 1f6b58b323f669293b4ef8d497fe7867d1411143 Mon Sep 17 00:00:00 2001
+From: Kazuhito Hagio <k-hagio-ab@nec.com>
+Date: Wed, 7 Dec 2022 09:46:56 +0900
+Subject: [PATCH 48/89] x86_64: Fix for move of per-cpu variables into struct
+ pcpu_hot
+
+The following kernel commits, which are contained in Linux 6.2-rc1 and
+later kernels, introduced struct pcpu_hot and moved several per-cpu
+variables into it.
+
+  d7b6d709a76a x86/percpu: Move irq_stack variables next to current_task
+  7443b296e699 x86/percpu: Move cpu_number next to current_task
+  e57ef2ed97c1 x86: Put hot per CPU variables into a struct
+
+Without the patch, crash fails to start session with the following
+error:
+
+  $ crash vmlinux vmcore
+  ...
+  bt: invalid size request: 0  type: "stack contents"
+  bt: read of stack at 0 failed
+     <segmentation violation in gdb>
+
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ x86_64.c | 44 +++++++++++++++++++++++++++++++++-----------
+ 1 file changed, 33 insertions(+), 11 deletions(-)
+
+diff --git a/x86_64.c b/x86_64.c
+index 292c240e887e..1113a1055f77 100644
+--- a/x86_64.c
++++ b/x86_64.c
+@@ -1287,12 +1287,15 @@ x86_64_per_cpu_init(void)
+ {
+ 	int i, cpus, cpunumber;
+ 	struct machine_specific *ms;
+-	struct syment *irq_sp, *curr_sp, *cpu_sp, *hardirq_stack_ptr_sp;
++	struct syment *irq_sp, *curr_sp, *cpu_sp, *hardirq_stack_ptr_sp, *pcpu_sp;
+ 	ulong hardirq_stack_ptr;
+ 	ulong __per_cpu_load = 0;
++	long hardirq_addr = 0, cpu_addr = 0, curr_addr = 0;
+ 
+ 	ms = machdep->machspec;
+ 
++	pcpu_sp = per_cpu_symbol_search("pcpu_hot");
++
+ 	hardirq_stack_ptr_sp = per_cpu_symbol_search("hardirq_stack_ptr");
+ 	irq_sp = per_cpu_symbol_search("per_cpu__irq_stack_union");
+ 	cpu_sp = per_cpu_symbol_search("per_cpu__cpu_number");
+@@ -1321,7 +1324,7 @@ x86_64_per_cpu_init(void)
+ 		return;
+ 	}
+ 
+-	if (!cpu_sp || (!irq_sp && !hardirq_stack_ptr_sp))
++	if (!pcpu_sp && (!cpu_sp || (!irq_sp && !hardirq_stack_ptr_sp)))
+ 		return;
+ 
+ 	if (MEMBER_EXISTS("irq_stack_union", "irq_stack"))
+@@ -1334,10 +1337,21 @@ x86_64_per_cpu_init(void)
+ 	if (kernel_symbol_exists("__per_cpu_load"))
+ 		__per_cpu_load = symbol_value("__per_cpu_load");
+ 
++	if (pcpu_sp) {
++		hardirq_addr = pcpu_sp->value + MEMBER_OFFSET("pcpu_hot", "hardirq_stack_ptr");
++		cpu_addr = pcpu_sp->value + MEMBER_OFFSET("pcpu_hot", "cpu_number");
++		curr_addr = pcpu_sp->value + MEMBER_OFFSET("pcpu_hot", "current_task");
++	} else {
++		if (hardirq_stack_ptr_sp)
++			hardirq_addr = hardirq_stack_ptr_sp->value;
++		cpu_addr = cpu_sp->value;
++		curr_addr = curr_sp->value;
++	}
++
+ 	for (i = cpus = 0; i < NR_CPUS; i++) {
+ 		if (__per_cpu_load && kt->__per_cpu_offset[i] == __per_cpu_load)
+ 			break;
+-		if (!readmem(cpu_sp->value + kt->__per_cpu_offset[i],
++		if (!readmem(cpu_addr + kt->__per_cpu_offset[i],
+ 		    KVADDR, &cpunumber, sizeof(int),
+ 		    "cpu number (per_cpu)", QUIET|RETURN_ON_ERROR))
+ 			break;
+@@ -1346,8 +1360,8 @@ x86_64_per_cpu_init(void)
+ 			break;
+ 		cpus++;
+ 
+-		if (hardirq_stack_ptr_sp) {
+-			if (!readmem(hardirq_stack_ptr_sp->value + kt->__per_cpu_offset[i],
++		if (pcpu_sp || hardirq_stack_ptr_sp) {
++			if (!readmem(hardirq_addr + kt->__per_cpu_offset[i],
+ 		    	    KVADDR, &hardirq_stack_ptr, sizeof(void *),
+ 		    	    "hardirq_stack_ptr (per_cpu)", QUIET|RETURN_ON_ERROR))
+ 				continue;
+@@ -1370,13 +1384,13 @@ x86_64_per_cpu_init(void)
+ 	else
+ 		kt->cpus = cpus;
+ 
+-	if (DUMPFILE() && curr_sp) {
++	if (DUMPFILE() && (pcpu_sp || curr_sp)) {
+ 		if ((ms->current = calloc(kt->cpus, sizeof(ulong))) == NULL)
+ 			error(FATAL, 
+ 			    "cannot calloc %d x86_64 current pointers!\n",
+ 				kt->cpus);
+ 		for (i = 0; i < kt->cpus; i++)
+-			if (!readmem(curr_sp->value + kt->__per_cpu_offset[i], 
++			if (!readmem(curr_addr + kt->__per_cpu_offset[i],
+ 			    KVADDR, &ms->current[i], sizeof(ulong),
+ 			    "current_task (per_cpu)", RETURN_ON_ERROR))
+ 				continue;
+@@ -5622,11 +5636,19 @@ x86_64_get_smp_cpus(void)
+ 	char *cpu_pda_buf;
+ 	ulong level4_pgt, cpu_pda_addr;
+ 	struct syment *sp;
+-	ulong __per_cpu_load = 0;
++	ulong __per_cpu_load = 0, cpu_addr;
+ 
+ 	if (!VALID_STRUCT(x8664_pda)) {
+-		if (!(sp = per_cpu_symbol_search("per_cpu__cpu_number")) ||
+-		    !(kt->flags & PER_CPU_OFF))
++
++		if (!(kt->flags & PER_CPU_OFF))
++			return 1;
++
++		if ((sp = per_cpu_symbol_search("pcpu_hot")) &&
++		    (cpu_addr = MEMBER_OFFSET("pcpu_hot", "cpu_number")) != INVALID_OFFSET)
++			cpu_addr += sp->value;
++		else if ((sp = per_cpu_symbol_search("per_cpu__cpu_number")))
++			cpu_addr = sp->value;
++		else
+ 			return 1;
+ 
+ 		if (kernel_symbol_exists("__per_cpu_load"))
+@@ -5635,7 +5657,7 @@ x86_64_get_smp_cpus(void)
+ 		for (i = cpus = 0; i < NR_CPUS; i++) {
+ 			if (__per_cpu_load && kt->__per_cpu_offset[i] == __per_cpu_load)
+ 				break;
+-			if (!readmem(sp->value + kt->__per_cpu_offset[i], 
++			if (!readmem(cpu_addr + kt->__per_cpu_offset[i],
+ 			    KVADDR, &cpunumber, sizeof(int),
+ 			    "cpu number (per_cpu)", QUIET|RETURN_ON_ERROR))
+ 				break;
+-- 
+2.37.1
+

0049-Fix-for-mm_struct.rss_stat-conversion-into-percpu_co.patch

@@ -0,0 +1,163 @@
+From c05bbb36fcb468bce384ee4b8e30a0f5748bc4ae Mon Sep 17 00:00:00 2001
+From: Kazuhito Hagio <k-hagio-ab@nec.com>
+Date: Thu, 15 Dec 2022 11:31:38 +0900
+Subject: [PATCH 49/89] Fix for mm_struct.rss_stat conversion into
+ percpu_counter
+
+Kernel commit f1a7941243c1 ("mm: convert mm's rss stats into
+percpu_counter"), which is contained in Linux 6.2-rc1 and later
+kernels, changed mm_struct.rss_stat from struct mm_rss_stat into an
+array of struct percpu_counter.
+
+Without the patch, "ps" and several commands fail with the following
+error message:
+
+  ps: invalid structure member offset: mm_rss_stat_count
+      FILE: memory.c  LINE: 4724  FUNCTION: get_task_mem_usage()
+
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ defs.h    |  3 +++
+ kernel.c  |  2 ++
+ memory.c  | 14 +++++++++++++-
+ symbols.c |  6 ++++--
+ tools.c   | 28 ++++++++++++++++++++++++++++
+ 5 files changed, 50 insertions(+), 3 deletions(-)
+
+diff --git a/defs.h b/defs.h
+index b7d76330141a..e4732c885371 100644
+--- a/defs.h
++++ b/defs.h
+@@ -2181,6 +2181,7 @@ struct offset_table {                    /* stash of commonly-used offsets */
+ 	long blk_mq_tags_nr_reserved_tags;
+ 	long blk_mq_tags_rqs;
+ 	long request_queue_hctx_table;
++	long percpu_counter_counters;
+ };
+ 
+ struct size_table {         /* stash of commonly-used sizes */
+@@ -2351,6 +2352,7 @@ struct size_table {         /* stash of commonly-used sizes */
+ 	long sbitmap_queue;
+ 	long sbq_wait_state;
+ 	long blk_mq_tags;
++	long percpu_counter;
+ };
+ 
+ struct array_table {
+@@ -5307,6 +5309,7 @@ struct rb_node *rb_right(struct rb_node *, struct rb_node *);
+ struct rb_node *rb_left(struct rb_node *, struct rb_node *);
+ struct rb_node *rb_next(struct rb_node *);
+ struct rb_node *rb_last(struct rb_root *);
++long percpu_counter_sum_positive(ulong fbc);
+ 
+ /* 
+  *  symbols.c 
+diff --git a/kernel.c b/kernel.c
+index 2a1c1c391414..3ca513962970 100644
+--- a/kernel.c
++++ b/kernel.c
+@@ -316,6 +316,8 @@ kernel_init()
+ 	}
+ 
+ 	MEMBER_OFFSET_INIT(percpu_counter_count, "percpu_counter", "count");
++	MEMBER_OFFSET_INIT(percpu_counter_counters, "percpu_counter", "counters");
++	STRUCT_SIZE_INIT(percpu_counter, "percpu_counter");
+ 
+ 	if (STRUCT_EXISTS("runqueue")) {
+ 		rqstruct = "runqueue";
+diff --git a/memory.c b/memory.c
+index 9c15c1b745ef..9d003713534b 100644
+--- a/memory.c
++++ b/memory.c
+@@ -4713,7 +4713,7 @@ get_task_mem_usage(ulong task, struct task_mem_usage *tm)
+ 		/*
+ 		 *  Latest kernels have mm_struct.mm_rss_stat[].
+ 		 */ 
+-		if (VALID_MEMBER(mm_struct_rss_stat)) {
++		if (VALID_MEMBER(mm_struct_rss_stat) && VALID_MEMBER(mm_rss_stat_count)) {
+ 			long anonpages, filepages, count;
+ 
+ 			anonpages = tt->anonpages;
+@@ -4737,6 +4737,18 @@ get_task_mem_usage(ulong task, struct task_mem_usage *tm)
+ 				(anonpages * sizeof(long)));
+ 			if (count > 0)
+ 				rss += count;
++
++		} else if (VALID_MEMBER(mm_struct_rss_stat)) {
++			/* 6.2: struct percpu_counter rss_stat[NR_MM_COUNTERS] */
++			ulong fbc;
++
++			fbc = tc->mm_struct + OFFSET(mm_struct_rss_stat) +
++				(tt->filepages * SIZE(percpu_counter));
++			rss += percpu_counter_sum_positive(fbc);
++
++			fbc = tc->mm_struct + OFFSET(mm_struct_rss_stat) +
++				(tt->anonpages * SIZE(percpu_counter));
++			rss += percpu_counter_sum_positive(fbc);
+ 		}
+ 
+ 		/* Check whether SPLIT_RSS_COUNTING is enabled */
+diff --git a/symbols.c b/symbols.c
+index a94660538492..657f50706819 100644
+--- a/symbols.c
++++ b/symbols.c
+@@ -10645,8 +10645,8 @@ dump_offset_table(char *spec, ulong makestruct)
+ 		OFFSET(ktime_t_nsec));
+ 	fprintf(fp, "              atomic_t_counter: %ld\n",
+ 		OFFSET(atomic_t_counter));
+-	fprintf(fp, "          percpu_counter_count: %ld\n",
+-		OFFSET(percpu_counter_count));
++	fprintf(fp, "          percpu_counter_count: %ld\n", OFFSET(percpu_counter_count));
++	fprintf(fp, "       percpu_counter_counters: %ld\n", OFFSET(percpu_counter_counters));
+ 	fprintf(fp, "             sk_buff_head_next: %ld\n",
+ 		OFFSET(sk_buff_head_next));
+ 	fprintf(fp, "             sk_buff_head_qlen: %ld\n",
+@@ -11040,6 +11040,8 @@ dump_offset_table(char *spec, ulong makestruct)
+ 	fprintf(fp, "                sbq_wait_state: %ld\n", SIZE(sbq_wait_state));
+ 	fprintf(fp, "                   blk_mq_tags: %ld\n", SIZE(blk_mq_tags));
+ 
++	fprintf(fp, "                percpu_counter: %ld\n", SIZE(percpu_counter));
++
+         fprintf(fp, "\n                   array_table:\n");
+ 	/*
+ 	 *  Use get_array_length() for those fields not set up at init-time;
+diff --git a/tools.c b/tools.c
+index 6fa3c70bac2b..7f64bd6328cf 100644
+--- a/tools.c
++++ b/tools.c
+@@ -6902,3 +6902,31 @@ rb_last(struct rb_root *root)
+ 
+ 	return node;
+ }
++
++long
++percpu_counter_sum_positive(ulong fbc)
++{
++	int i, count;
++	ulong addr;
++	long ret;
++
++	if (INVALID_MEMBER(percpu_counter_count))
++		return 0;
++
++	readmem(fbc + OFFSET(percpu_counter_count), KVADDR, &ret,
++		sizeof(long long), "percpu_counter.count", FAULT_ON_ERROR);
++
++	if (INVALID_MEMBER(percpu_counter_counters)) /* !CONFIG_SMP */
++		return (ret < 0) ? 0 : ret;
++
++	readmem(fbc + OFFSET(percpu_counter_counters), KVADDR, &addr,
++		sizeof(void *), "percpu_counter.counters", FAULT_ON_ERROR);
++
++	for (i = 0; i < kt->cpus; i++) {
++		readmem(addr + kt->__per_cpu_offset[i], KVADDR, &count,
++			sizeof(int), "percpu_counter.counters count", FAULT_ON_ERROR);
++		ret += count;
++	}
++
++	return (ret < 0) ? 0 : ret;
++}
+-- 
+2.37.1
+

0050-Fix-mount-command-to-appropriately-display-the-mount.patch

@@ -0,0 +1,48 @@
+From 1c56f2a37c79fa07c64dce34605d7b4a8a903243 Mon Sep 17 00:00:00 2001
+From: Lianbo Jiang <lijiang@redhat.com>
+Date: Wed, 21 Dec 2022 17:09:08 +0800
+Subject: [PATCH 50/89] Fix "mount" command to appropriately display the mount
+ dumps
+
+Recently the following failure has been observed on some vmcores when
+using the mount command:
+
+  crash> mount
+       MOUNT           SUPERBLK     TYPE   DEVNAME   DIRNAME
+  ffff97a4818a3480 ffff979500013800 rootfs none      /
+  ffff97e4846ca700 ffff97e484653000 sysfs  sysfs     /sys
+  ...
+  ffff97b484753420                0 mount: invalid kernel virtual address: 0  type: "super_block buffer"
+
+The kernel virtual address of the super_block is zero when the mount
+command fails with the vfsmnt address 0xffff97b484753420. And the
+remaining mount information will be discarded. That is not expected.
+
+Check the address and skip it with a warning, if this is an invalid
+kernel virtual address, that can avoid truncating the remaining mount
+dumps.
+
+Reported-by: Dave Wysochanski <dwysocha@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ filesys.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/filesys.c b/filesys.c
+index c2ea78de821d..d64b54a9b822 100644
+--- a/filesys.c
++++ b/filesys.c
+@@ -1491,6 +1491,10 @@ show_mounts(ulong one_vfsmount, int flags, struct task_context *namespace_contex
+ 		}
+ 
+ 		sbp = ULONG(vfsmount_buf + OFFSET(vfsmount_mnt_sb)); 
++		if (!IS_KVADDR(sbp)) {
++			error(WARNING, "cannot get super_block from vfsmnt: 0x%lx\n", *vfsmnt);
++			continue;
++		}
+ 
+ 		if (flags)
+ 			fprintf(fp, "%s", mount_hdr);
+-- 
+2.37.1
+

0051-Add-RISCV64-framework-code-support.patch

@@ -0,0 +1,692 @@
+From 8ac8ab4f0e2d81b51b79b30f410c09e394b17e9c Mon Sep 17 00:00:00 2001
+From: Xianting Tian <xianting.tian@linux.alibaba.com>
+Date: Thu, 20 Oct 2022 09:50:06 +0800
+Subject: [PATCH 51/89] Add RISCV64 framework code support
+
+This patch mainly added some environment configurations, macro definitions,
+specific architecture structures and some function declarations supported
+by the RISCV64 architecture.
+
+We can use the build command to get the simplest version crash tool:
+	make target=RISCV64 -j2
+
+Co-developed-by: Lifang Xia <lifang_xia@linux.alibaba.com>
+Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ Makefile            |   7 +-
+ README              |   6 +-
+ configure.c         |  43 ++++++++++++-
+ defs.h              | 154 +++++++++++++++++++++++++++++++++++++++++++-
+ diskdump.c          |  11 +++-
+ help.c              |   6 +-
+ lkcd_vmdump_v1.h    |   8 +--
+ lkcd_vmdump_v2_v3.h |   8 +--
+ netdump.c           |   9 ++-
+ ramdump.c           |   2 +
+ riscv64.c           |  54 ++++++++++++++++
+ symbols.c           |  10 +++
+ 12 files changed, 294 insertions(+), 24 deletions(-)
+ create mode 100644 riscv64.c
+
+diff --git a/Makefile b/Makefile
+index 2549d1d39273..c0de5ef8ff75 100644
+--- a/Makefile
++++ b/Makefile
+@@ -64,7 +64,7 @@ CFILES=main.c tools.c global_data.c memory.c filesys.c help.c task.c \
+ 	kernel.c test.c gdb_interface.c configure.c net.c dev.c bpf.c \
+ 	printk.c \
+ 	alpha.c x86.c ppc.c ia64.c s390.c s390x.c s390dbf.c ppc64.c x86_64.c \
+-	arm.c arm64.c mips.c mips64.c sparc64.c \
++	arm.c arm64.c mips.c mips64.c riscv64.c sparc64.c \
+ 	extensions.c remote.c va_server.c va_server_v1.c symbols.c cmdline.c \
+ 	lkcd_common.c lkcd_v1.c lkcd_v2_v3.c lkcd_v5.c lkcd_v7.c lkcd_v8.c\
+ 	lkcd_fix_mem.c s390_dump.c lkcd_x86_trace.c \
+@@ -84,7 +84,7 @@ OBJECT_FILES=main.o tools.o global_data.o memory.o filesys.o help.o task.o \
+ 	build_data.o kernel.o test.o gdb_interface.o net.o dev.o bpf.o \
+ 	printk.o \
+ 	alpha.o x86.o ppc.o ia64.o s390.o s390x.o s390dbf.o ppc64.o x86_64.o \
+-	arm.o arm64.o mips.o mips64.o sparc64.o \
++	arm.o arm64.o mips.o mips64.o riscv64.o sparc64.o \
+ 	extensions.o remote.o va_server.o va_server_v1.o symbols.o cmdline.o \
+ 	lkcd_common.o lkcd_v1.o lkcd_v2_v3.o lkcd_v5.o lkcd_v7.o lkcd_v8.o \
+ 	lkcd_fix_mem.o s390_dump.o netdump.o diskdump.o makedumpfile.o xendump.o \
+@@ -447,6 +447,9 @@ mips.o: ${GENERIC_HFILES} ${REDHAT_HFILES} mips.c
+ mips64.o: ${GENERIC_HFILES} ${REDHAT_HFILES} mips64.c
+ 	${CC} -c ${CRASH_CFLAGS} mips64.c ${WARNING_OPTIONS} ${WARNING_ERROR}
+ 
++riscv64.o: ${GENERIC_HFILES} ${REDHAT_HFILES} riscv64.c
++	${CC} -c ${CRASH_CFLAGS} riscv64.c ${WARNING_OPTIONS} ${WARNING_ERROR}
++
+ sparc64.o: ${GENERIC_HFILES} ${REDHAT_HFILES} sparc64.c
+ 	${CC} -c ${CRASH_CFLAGS} sparc64.c ${WARNING_OPTIONS} ${WARNING_ERROR}
+ 
+diff --git a/README b/README
+index 00386f6f8224..13a9de5d2ccb 100644
+--- a/README
++++ b/README
+@@ -37,8 +37,8 @@
+   These are the current prerequisites: 
+ 
+   o  At this point, x86, ia64, x86_64, ppc64, ppc, arm, arm64, alpha, mips,
+-     mips64, s390 and s390x-based kernels are supported.  Other architectures
+-     may be addressed in the future.
++     mips64, riscv64, s390 and s390x-based kernels are supported.  Other
++     architectures may be addressed in the future.
+ 
+   o  One size fits all -- the utility can be run on any Linux kernel version
+      version dating back to 2.2.5-15.  A primary design goal is to always
+@@ -98,6 +98,8 @@
+      arm64 dumpfiles may be built by typing "make target=ARM64".
+   o  On an x86_64 host, an x86_64 binary that can be used to analyze
+      ppc64le dumpfiles may be built by typing "make target=PPC64".
++  o  On an x86_64 host, an x86_64 binary that can be used to analyze
++     riscv64 dumpfiles may be built by typing "make target=RISCV64".
+ 
+   Traditionally when vmcores are compressed via the makedumpfile(8) facility
+   the libz compression library is used, and by default the crash utility
+diff --git a/configure.c b/configure.c
+index b691a139b960..7de89553dbd3 100644
+--- a/configure.c
++++ b/configure.c
+@@ -107,6 +107,7 @@ void add_extra_lib(char *);
+ #undef MIPS
+ #undef SPARC64
+ #undef MIPS64
++#undef RISCV64
+ 
+ #define UNKNOWN 0
+ #define X86     1
+@@ -122,6 +123,7 @@ void add_extra_lib(char *);
+ #define MIPS    11
+ #define SPARC64 12
+ #define MIPS64  13
++#define RISCV64 14
+ 
+ #define TARGET_X86    "TARGET=X86"
+ #define TARGET_ALPHA  "TARGET=ALPHA"
+@@ -136,6 +138,7 @@ void add_extra_lib(char *);
+ #define TARGET_MIPS   "TARGET=MIPS"
+ #define TARGET_MIPS64 "TARGET=MIPS64"
+ #define TARGET_SPARC64 "TARGET=SPARC64"
++#define TARGET_RISCV64 "TARGET=RISCV64"
+ 
+ #define TARGET_CFLAGS_X86    "TARGET_CFLAGS=-D_FILE_OFFSET_BITS=64"
+ #define TARGET_CFLAGS_ALPHA  "TARGET_CFLAGS="
+@@ -158,6 +161,8 @@ void add_extra_lib(char *);
+ #define TARGET_CFLAGS_MIPS_ON_X86_64  "TARGET_CFLAGS=-m32 -D_FILE_OFFSET_BITS=64"
+ #define TARGET_CFLAGS_MIPS64          "TARGET_CFLAGS="
+ #define TARGET_CFLAGS_SPARC64         "TARGET_CFLAGS="
++#define TARGET_CFLAGS_RISCV64         "TARGET_CFLAGS="
++#define TARGET_CFLAGS_RISCV64_ON_X86_64	"TARGET_CFLAGS="
+ 
+ #define GDB_TARGET_DEFAULT        "GDB_CONF_FLAGS="
+ #define GDB_TARGET_ARM_ON_X86     "GDB_CONF_FLAGS=--target=arm-elf-linux"
+@@ -168,6 +173,7 @@ void add_extra_lib(char *);
+ #define GDB_TARGET_PPC64_ON_X86_64  "GDB_CONF_FLAGS=--target=powerpc64le-unknown-linux-gnu"
+ #define GDB_TARGET_MIPS_ON_X86     "GDB_CONF_FLAGS=--target=mipsel-elf-linux"
+ #define GDB_TARGET_MIPS_ON_X86_64  "GDB_CONF_FLAGS=--target=mipsel-elf-linux CFLAGS=-m32"
++#define GDB_TARGET_RISCV64_ON_X86_64  "GDB_CONF_FLAGS=--target=riscv64-unknown-linux-gnu"
+      
+ /*
+  *  The original plan was to allow the use of a particular version
+@@ -394,6 +400,9 @@ get_current_configuration(struct supported_gdb_version *sp)
+ #ifdef __sparc_v9__
+ 	target_data.target = SPARC64;
+ #endif
++#if defined(__riscv) && (__riscv_xlen == 64)
++	target_data.target = RISCV64;
++#endif
+ 
+ 	set_initial_target(sp);
+ 
+@@ -447,6 +456,12 @@ get_current_configuration(struct supported_gdb_version *sp)
+ 			if ((target_data.initial_gdb_target != UNKNOWN) &&
+ 			    (target_data.host != target_data.initial_gdb_target))
+ 				arch_mismatch(sp);
++		} else if ((target_data.target == X86_64) &&
++			(name_to_target((char *)target_data.target_as_param) == RISCV64)) {
++			/*
++			 *  Build an RISCV64 crash binary on an X86_64 host.
++			 */
++			target_data.target = RISCV64;
+ 		} else {
+ 			fprintf(stderr,
+ 			    "\ntarget=%s is not supported on the %s host architecture\n\n",
+@@ -487,6 +502,14 @@ get_current_configuration(struct supported_gdb_version *sp)
+ 		    (target_data.target != MIPS64))
+ 			arch_mismatch(sp);
+ 
++		if ((target_data.initial_gdb_target == RISCV64) &&
++		    (target_data.target != RISCV64)) {
++			if (target_data.target == X86_64)
++				target_data.target = RISCV64;
++			else
++				arch_mismatch(sp);
++		}
++
+ 		if ((target_data.initial_gdb_target == X86) &&
+ 		    (target_data.target != X86)) {
+ 			if (target_data.target == X86_64) 
+@@ -650,6 +673,9 @@ show_configuration(void)
+ 	case SPARC64:
+ 		printf("TARGET: SPARC64\n");
+ 		break;
++	case RISCV64:
++		printf("TARGET: RISCV64\n");
++		break;
+ 	}
+ 
+ 	if (strlen(target_data.program)) {
+@@ -767,6 +793,14 @@ build_configure(struct supported_gdb_version *sp)
+ 		target = TARGET_SPARC64;
+ 		target_CFLAGS = TARGET_CFLAGS_SPARC64;
+ 		break;
++	case RISCV64:
++		target = TARGET_RISCV64;
++		if (target_data.host == X86_64) {
++			target_CFLAGS = TARGET_CFLAGS_RISCV64_ON_X86_64;
++			gdb_conf_flags = GDB_TARGET_RISCV64_ON_X86_64;
++		} else
++			target_CFLAGS = TARGET_CFLAGS_RISCV64;
++		break;
+ 	}
+ 
+ 	ldflags = get_extra_flags("LDFLAGS.extra", NULL);
+@@ -1364,7 +1398,7 @@ make_spec_file(struct supported_gdb_version *sp)
+ 	printf("Vendor: Red Hat, Inc.\n");
+ 	printf("Packager: Dave Anderson <anderson@redhat.com>\n");
+ 	printf("ExclusiveOS: Linux\n");
+-	printf("ExclusiveArch: %%{ix86} alpha ia64 ppc ppc64 ppc64pseries ppc64iseries x86_64 s390 s390x arm aarch64 ppc64le mips mipsel mips64el sparc64\n");
++	printf("ExclusiveArch: %%{ix86} alpha ia64 ppc ppc64 ppc64pseries ppc64iseries x86_64 s390 s390x arm aarch64 ppc64le mips mipsel mips64el sparc64 riscv64\n");
+ 	printf("Buildroot: %%{_tmppath}/%%{name}-root\n");
+ 	printf("BuildRequires: ncurses-devel zlib-devel bison\n");
+ 	printf("Requires: binutils\n");
+@@ -1597,6 +1631,8 @@ set_initial_target(struct supported_gdb_version *sp)
+ 		target_data.initial_gdb_target = MIPS;
+ 	else if (strncmp(buf, "SPARC64", strlen("SPARC64")) == 0)
+ 		target_data.initial_gdb_target = SPARC64;
++	else if (strncmp(buf, "RISCV64", strlen("RISCV64")) == 0)
++		target_data.initial_gdb_target = RISCV64;
+ }
+ 
+ char *
+@@ -1617,6 +1653,7 @@ target_to_name(int target)
+ 	case MIPS:   return("MIPS");
+ 	case MIPS64: return("MIPS64");
+ 	case SPARC64: return("SPARC64");
++	case RISCV64: return("RISCV64");
+ 	}
+ 
+ 	return "UNKNOWN";
+@@ -1681,6 +1718,10 @@ name_to_target(char *name)
+ 		return MIPS64;
+ 	else if (strncmp(name, "sparc64", strlen("sparc64")) == 0)
+ 		return SPARC64;
++	else if (strncmp(name, "RISCV64", strlen("RISCV64")) == 0)
++		return RISCV64;
++	else if (strncmp(name, "riscv64", strlen("riscv64")) == 0)
++		return RISCV64;
+ 
+ 	return UNKNOWN;
+ }
+diff --git a/defs.h b/defs.h
+index e4732c885371..f46b666dde13 100644
+--- a/defs.h
++++ b/defs.h
+@@ -76,7 +76,7 @@
+ #if !defined(X86) && !defined(X86_64) && !defined(ALPHA) && !defined(PPC) && \
+     !defined(IA64) && !defined(PPC64) && !defined(S390) && !defined(S390X) && \
+     !defined(ARM) && !defined(ARM64) && !defined(MIPS) && !defined(MIPS64) && \
+-    !defined(SPARC64)
++    !defined(RISCV64) && !defined(SPARC64)
+ #ifdef __alpha__
+ #define ALPHA
+ #endif
+@@ -118,6 +118,9 @@
+ #ifdef __sparc_v9__
+ #define SPARC64
+ #endif
++#if defined(__riscv) && (__riscv_xlen == 64)
++#define RISCV64
++#endif
+ #endif
+ 
+ #ifdef X86
+@@ -159,6 +162,9 @@
+ #ifdef SPARC64
+ #define NR_CPUS  (4096)
+ #endif
++#ifdef RISCV64
++#define NR_CPUS  (256)
++#endif
+ 
+ #define NR_DEVICE_DUMPS (64)
+ 
+@@ -3486,6 +3492,63 @@ struct arm64_stackframe {
+ #define _MAX_PHYSMEM_BITS       48
+ #endif  /* MIPS64 */
+ 
++#ifdef RISCV64
++#define _64BIT_
++#define MACHINE_TYPE		"RISCV64"
++
++/*
++ * Direct memory mapping
++ */
++#define PTOV(X) 									\
++	(((unsigned long)(X)+(machdep->kvbase)) - machdep->machspec->phys_base)
++#define VTOP(X) ({									\
++	ulong _X = X;									\
++	(THIS_KERNEL_VERSION >= LINUX(5,13,0) &&					\
++		(_X) >= machdep->machspec->kernel_link_addr) ?				\
++		(((unsigned long)(_X)-(machdep->machspec->kernel_link_addr)) +		\
++		 machdep->machspec->phys_base):						\
++		(((unsigned long)(_X)-(machdep->kvbase)) +				\
++		 machdep->machspec->phys_base);						\
++	})
++#define PAGEBASE(X)		(((ulong)(X)) & (ulong)machdep->pagemask)
++
++/*
++ * Stack size order
++ */
++#define THREAD_SIZE_ORDER	2
++
++#define PAGE_OFFSET		(machdep->machspec->page_offset)
++#define VMALLOC_START		(machdep->machspec->vmalloc_start_addr)
++#define VMALLOC_END		(machdep->machspec->vmalloc_end)
++#define VMEMMAP_VADDR		(machdep->machspec->vmemmap_vaddr)
++#define VMEMMAP_END		(machdep->machspec->vmemmap_end)
++#define MODULES_VADDR		(machdep->machspec->modules_vaddr)
++#define MODULES_END		(machdep->machspec->modules_end)
++#define IS_VMALLOC_ADDR(X)	riscv64_IS_VMALLOC_ADDR((ulong)(X))
++
++/* from arch/riscv/include/asm/pgtable.h */
++#define __SWP_TYPE_SHIFT	6
++#define __SWP_TYPE_BITS 	5
++#define __SWP_TYPE_MASK 	((1UL << __SWP_TYPE_BITS) - 1)
++#define __SWP_OFFSET_SHIFT	(__SWP_TYPE_BITS + __SWP_TYPE_SHIFT)
++
++#define MAX_SWAPFILES_CHECK()	BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > __SWP_TYPE_BITS)
++
++#define SWP_TYPE(entry) 	(((entry) >> __SWP_TYPE_SHIFT) & __SWP_TYPE_MASK)
++#define SWP_OFFSET(entry)	((entry) >> __SWP_OFFSET_SHIFT)
++#define __swp_type(entry)	SWP_TYPE(entry)
++#define __swp_offset(entry)	SWP_OFFSET(entry)
++
++#define TIF_SIGPENDING		(THIS_KERNEL_VERSION >= LINUX(2,6,23) ? 1 : 2)
++
++/* from arch/riscv/include/asm/sparsemem.h */
++#define _SECTION_SIZE_BITS	27
++#define _MAX_PHYSMEM_BITS	56 /* 56-bit physical address supported */
++#define PHYS_MASK_SHIFT 	_MAX_PHYSMEM_BITS
++#define PHYS_MASK		(((1UL) << PHYS_MASK_SHIFT) - 1)
++
++#endif  /* RISCV64 */
++
+ #ifdef X86
+ #define _32BIT_
+ #define MACHINE_TYPE       "X86"
+@@ -4534,6 +4597,10 @@ struct machine_specific {
+ #define MAX_HEXADDR_STRLEN (16)
+ #define UVADDR_PRLEN      (16)
+ #endif
++#ifdef RISCV64
++#define MAX_HEXADDR_STRLEN (16)
++#define UVADDR_PRLEN       (16)
++#endif
+ 
+ #define BADADDR  ((ulong)(-1))
+ #define BADVAL   ((ulong)(-1))
+@@ -5131,6 +5198,9 @@ void dump_build_data(void);
+ #ifdef MIPS64
+ #define machdep_init(X) mips64_init(X)
+ #endif
++#ifdef RISCV64
++#define machdep_init(X) riscv64_init(X)
++#endif
+ #ifdef SPARC64
+ #define machdep_init(X) sparc64_init(X)
+ #endif
+@@ -5618,6 +5688,9 @@ void display_help_screen(char *);
+ #ifdef SPARC64
+ #define dump_machdep_table(X) sparc64_dump_machdep_table(X)
+ #endif
++#ifdef RISCV64
++#define dump_machdep_table(X) riscv64_dump_machdep_table(X)
++#endif
+ extern char *help_pointer[];
+ extern char *help_alias[];
+ extern char *help_ascii[];
+@@ -6695,6 +6768,85 @@ struct machine_specific {
+ 
+ #endif /* MIPS64 */
+ 
++/*
++ * riscv64.c
++ */
++void riscv64_display_regs_from_elf_notes(int, FILE *);
++
++#ifdef RISCV64
++void riscv64_init(int);
++void riscv64_dump_machdep_table(ulong);
++int riscv64_IS_VMALLOC_ADDR(ulong);
++
++#define display_idt_table() \
++	error(FATAL, "-d option is not applicable to RISCV64 architecture\n")
++
++/* from arch/riscv/include/asm/ptrace.h */
++struct riscv64_register {
++	ulong regs[36];
++};
++
++struct riscv64_pt_regs {
++	ulong badvaddr;
++	ulong cause;
++	ulong epc;
++};
++
++struct riscv64_unwind_frame {
++	ulong fp;
++	ulong sp;
++	ulong pc;
++};
++
++#define KSYMS_START	(0x1)
++
++struct machine_specific {
++	ulong phys_base;
++	ulong page_offset;
++	ulong vmalloc_start_addr;
++	ulong vmalloc_end;
++	ulong vmemmap_vaddr;
++	ulong vmemmap_end;
++	ulong modules_vaddr;
++	ulong modules_end;
++	ulong kernel_link_addr;
++
++	ulong _page_present;
++	ulong _page_read;
++	ulong _page_write;
++	ulong _page_exec;
++	ulong _page_user;
++	ulong _page_global;
++	ulong _page_accessed;
++	ulong _page_dirty;
++	ulong _page_soft;
++
++	ulong _pfn_shift;
++
++	struct riscv64_register *crash_task_regs;
++};
++/* from arch/riscv/include/asm/pgtable-bits.h */
++#define _PAGE_PRESENT	(machdep->machspec->_page_present)
++#define _PAGE_READ	(machdep->machspec->_page_read)
++#define _PAGE_WRITE	(machdep->machspec->_page_write)
++#define _PAGE_EXEC	(machdep->machspec->_page_exec)
++#define _PAGE_USER	(machdep->machspec->_page_user)
++#define _PAGE_GLOBAL	(machdep->machspec->_page_global)
++#define _PAGE_ACCESSED	(machdep->machspec->_page_accessed)
++#define _PAGE_DIRTY	(machdep->machspec->_page_dirty)
++#define _PAGE_SOFT	(machdep->machspec->_page_soft)
++#define _PAGE_SEC	(machdep->machspec->_page_sec)
++#define _PAGE_SHARE	(machdep->machspec->_page_share)
++#define _PAGE_BUF	(machdep->machspec->_page_buf)
++#define _PAGE_CACHE	(machdep->machspec->_page_cache)
++#define _PAGE_SO	(machdep->machspec->_page_so)
++#define _PAGE_SPECIAL	_PAGE_SOFT
++#define _PAGE_TABLE	_PAGE_PRESENT
++#define _PAGE_PROT_NONE _PAGE_READ
++#define _PAGE_PFN_SHIFT 10
++
++#endif /* RISCV64 */
++
+ /*
+  * sparc64.c
+  */
+diff --git a/diskdump.c b/diskdump.c
+index 09fac543011a..136cbd63f799 100644
+--- a/diskdump.c
++++ b/diskdump.c
+@@ -622,6 +622,9 @@ restart:
+ 	else if (STRNEQ(header->utsname.machine, "aarch64") &&
+ 	    machine_type_mismatch(file, "ARM64", NULL, 0))
+ 		goto err;
++	else if (STRNEQ(header->utsname.machine, "riscv64") &&
++	    machine_type_mismatch(file, "RISCV64", NULL, 0))
++		goto err;
+ 
+ 	if (header->block_size != block_size) {
+ 		block_size = header->block_size;
+@@ -780,6 +783,8 @@ restart:
+ 		dd->machine_type = EM_AARCH64;
+ 	else if (machine_type("SPARC64"))
+ 		dd->machine_type = EM_SPARCV9;
++	else if (machine_type("RISCV64"))
++		dd->machine_type = EM_RISCV;
+ 	else {
+ 		error(INFO, "%s: unsupported machine type: %s\n", 
+ 			DISKDUMP_VALID() ? "diskdump" : "compressed kdump",
+@@ -1751,7 +1756,8 @@ dump_note_offsets(FILE *fp)
+ 			qemu = FALSE;
+ 			if (machine_type("X86_64") || machine_type("S390X") ||
+ 			    machine_type("ARM64") || machine_type("PPC64") ||
+-			    machine_type("SPARC64") || machine_type("MIPS64")) {
++			    machine_type("SPARC64") || machine_type("MIPS64") ||
++			    machine_type("RISCV64")) {
+ 				note64 = (void *)dd->notes_buf + tot;
+ 				len = sizeof(Elf64_Nhdr);
+ 				if (STRNEQ((char *)note64 + len, "QEMU"))
+@@ -2558,7 +2564,8 @@ dump_registers_for_compressed_kdump(void)
+ 	if (!KDUMP_CMPRS_VALID() || (dd->header->header_version < 4) ||
+ 	    !(machine_type("X86") || machine_type("X86_64") ||
+ 	      machine_type("ARM64") || machine_type("PPC64") ||
+-	      machine_type("MIPS") || machine_type("MIPS64")))
++	      machine_type("MIPS") || machine_type("MIPS64") ||
++	      machine_type("RISCV64")))
+ 		error(FATAL, "-r option not supported for this dumpfile\n");
+ 
+ 	if (machine_type("ARM64") && (kt->cpus != dd->num_prstatus_notes))
+diff --git a/help.c b/help.c
+index 2cb570b244f4..bfba43f6e9fd 100644
+--- a/help.c
++++ b/help.c
+@@ -9518,8 +9518,8 @@ char *README[] = {
+ "  These are the current prerequisites: ",
+ "",
+ "  o  At this point, x86, ia64, x86_64, ppc64, ppc, arm, arm64, alpha, mips,",
+-"     mips64, s390 and s390x-based kernels are supported.  Other architectures",
+-"     may be addressed in the future.",
++"     mips64, riscv64, s390 and s390x-based kernels are supported.  Other",
++"     architectures may be addressed in the future.",
+ "",
+ "  o  One size fits all -- the utility can be run on any Linux kernel version",
+ "     version dating back to 2.2.5-15.  A primary design goal is to always",
+@@ -9578,6 +9578,8 @@ README_ENTER_DIRECTORY,
+ "     arm64 dumpfiles may be built by typing \"make target=ARM64\".",
+ "  o  On an x86_64 host, an x86_64 binary that can be used to analyze",
+ "     ppc64le dumpfiles may be built by typing \"make target=PPC64\".",
++"  o  On an x86_64 host, an x86_64 binary that can be used to analyze",
++"     riscv64 dumpfiles may be built by typing \"make target=RISCV64\".",
+ "",
+ "  Traditionally when vmcores are compressed via the makedumpfile(8) facility",
+ "  the libz compression library is used, and by default the crash utility",
+diff --git a/lkcd_vmdump_v1.h b/lkcd_vmdump_v1.h
+index 4933427fc755..98ee09495869 100644
+--- a/lkcd_vmdump_v1.h
++++ b/lkcd_vmdump_v1.h
+@@ -114,14 +114,8 @@ typedef struct _dump_header_s {
+ 	struct new_utsname   dh_utsname;
+ 
+ 	/* the dump registers */
+-#ifndef IA64
+-#ifndef S390
+-#ifndef S390X
+-#ifndef ARM64
++#if !defined(IA64) && !defined(S390) && !defined(S390X) && !defined(ARM64) && !defined(RISCV64)
+ 	struct pt_regs       dh_regs;
+-#endif
+-#endif
+-#endif
+ #endif
+ 
+ 	/* the address of the current task */
+diff --git a/lkcd_vmdump_v2_v3.h b/lkcd_vmdump_v2_v3.h
+index 984c2c25e3c6..ef3067f88e1e 100644
+--- a/lkcd_vmdump_v2_v3.h
++++ b/lkcd_vmdump_v2_v3.h
+@@ -37,7 +37,7 @@
+ 
+ #if defined(ARM) || defined(X86) || defined(PPC) || defined(S390) || \
+ 	defined(S390X) || defined(ARM64) || defined(MIPS) || \
+-	defined(MIPS64) || defined(SPARC64)
++	defined(MIPS64) || defined(SPARC64) || defined(RISCV64)
+ 
+ /*
+  * Kernel header file for Linux crash dumps.
+@@ -84,13 +84,9 @@ typedef struct _dump_header_asm_s {
+ 	uint32_t             dha_eip;
+ 
+ 	/* the dump registers */
+-#ifndef S390
+-#ifndef S390X
+-#ifndef ARM64
++#if !defined(S390) && !defined(S390X) && !defined(ARM64) && !defined(RISCV64)
+ 	struct pt_regs       dha_regs;
+ #endif
+-#endif
+-#endif
+ 
+ } dump_header_asm_t;
+ 
+diff --git a/netdump.c b/netdump.c
+index e8721d89f1a3..c4c8baae0d20 100644
+--- a/netdump.c
++++ b/netdump.c
+@@ -300,6 +300,12 @@ is_netdump(char *file, ulong source_query)
+ 				goto bailout;
+ 			break;
+ 
++		case EM_RISCV:
++			if (machine_type_mismatch(file, "RISCV64", NULL,
++			    source_query))
++				goto bailout;
++			break;
++
+ 		default:
+ 			if (machine_type_mismatch(file, "(unknown)", NULL,
+ 			    source_query))
+@@ -2935,7 +2941,8 @@ dump_registers_for_elf_dumpfiles(void)
+ 
+         if (!(machine_type("X86") || machine_type("X86_64") || 
+ 	    machine_type("ARM64") || machine_type("PPC64") ||
+-	    machine_type("MIPS") || machine_type("MIPS64")))
++	    machine_type("MIPS") || machine_type("MIPS64") ||
++	    machine_type("RISCV64")))
+                 error(FATAL, "-r option not supported for this dumpfile\n");
+ 
+ 	if (NETDUMP_DUMPFILE()) {
+diff --git a/ramdump.c b/ramdump.c
+index a206fcbbab3c..d2bd7ffb0b4b 100644
+--- a/ramdump.c
++++ b/ramdump.c
+@@ -188,6 +188,8 @@ char *ramdump_to_elf(void)
+ 		e_machine = EM_MIPS;
+ 	else if (machine_type("X86_64"))
+ 		e_machine = EM_X86_64;
++	else if (machine_type("RISCV64"))
++		e_machine = EM_RISCV;
+ 	else
+ 		error(FATAL, "ramdump: unsupported machine type: %s\n", 
+ 			MACHINE_TYPE);
+diff --git a/riscv64.c b/riscv64.c
+new file mode 100644
+index 000000000000..4f858a418a8c
+--- /dev/null
++++ b/riscv64.c
+@@ -0,0 +1,54 @@
++/* riscv64.c - core analysis suite
++ *
++ * Copyright (C) 2022 Alibaba Group Holding Limited.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ */
++#include "defs.h"
++#ifdef RISCV64
++
++#include <elf.h>
++
++void
++riscv64_dump_machdep_table(ulong arg)
++{
++}
++
++/*
++ *  Include both vmalloc'd and module address space as VMALLOC space.
++ */
++int
++riscv64_IS_VMALLOC_ADDR(ulong vaddr)
++{
++	return ((vaddr >= VMALLOC_START && vaddr <= VMALLOC_END) ||
++		(vaddr >= VMEMMAP_VADDR && vaddr <= VMEMMAP_END) ||
++		(vaddr >= MODULES_VADDR && vaddr <= MODULES_END));
++}
++
++void
++riscv64_init(int when)
++{
++}
++
++void
++riscv64_display_regs_from_elf_notes(int cpu, FILE *ofp)
++{
++}
++
++#else /* !RISCV64 */
++
++void
++riscv64_display_regs_from_elf_notes(int cpu, FILE *ofp)
++{
++	return;
++}
++
++#endif /* !RISCV64 */
+diff --git a/symbols.c b/symbols.c
+index 657f50706819..d1b35a56aa71 100644
+--- a/symbols.c
++++ b/symbols.c
+@@ -3745,6 +3745,11 @@ is_kernel(char *file)
+ 				goto bailout;
+ 			break;
+ 
++		case EM_RISCV:
++			if (machine_type_mismatch(file, "RISCV64", NULL, 0))
++				goto bailout;
++			break;
++
+ 		default:
+ 			if (machine_type_mismatch(file, "(unknown)", NULL, 0))
+ 				goto bailout;
+@@ -4004,6 +4009,11 @@ is_shared_object(char *file)
+ 			if (machine_type("MIPS64"))
+ 				return TRUE;
+ 			break;
++
++		case EM_RISCV:
++			if (machine_type("RISCV64"))
++				return TRUE;
++			break;
+ 		}
+ 
+ 		if (CRASHDEBUG(1))
+-- 
+2.37.1
+

0053-RISCV64-Add-dis-command-support.patch

@@ -0,0 +1,44 @@
+From 4876c73ca54a8ee2e02032d1b10832e0de9adde3 Mon Sep 17 00:00:00 2001
+From: Xianting Tian <xianting.tian@linux.alibaba.com>
+Date: Thu, 20 Oct 2022 09:50:08 +0800
+Subject: [PATCH 53/89] RISCV64: Add 'dis' command support
+
+Use generic_dis_filter() function to support dis command implementation.
+
+With this patch, we can get the disassembled code,
+crash> dis __crash_kexec
+0xffffffff80088580 <__crash_kexec>:     addi    sp,sp,-352
+0xffffffff80088582 <__crash_kexec+2>:   sd      s0,336(sp)
+0xffffffff80088584 <__crash_kexec+4>:   sd      s1,328(sp)
+0xffffffff80088586 <__crash_kexec+6>:   sd      s2,320(sp)
+0xffffffff80088588 <__crash_kexec+8>:   addi    s0,sp,352
+0xffffffff8008858a <__crash_kexec+10>:  sd      ra,344(sp)
+0xffffffff8008858c <__crash_kexec+12>:  sd      s3,312(sp)
+0xffffffff8008858e <__crash_kexec+14>:  sd      s4,304(sp)
+0xffffffff80088590 <__crash_kexec+16>:  auipc   s2,0x1057
+0xffffffff80088594 <__crash_kexec+20>:  addi    s2,s2,-1256
+0xffffffff80088598 <__crash_kexec+24>:  ld      a5,0(s2)
+0xffffffff8008859c <__crash_kexec+28>:  mv      s1,a0
+0xffffffff8008859e <__crash_kexec+30>:  auipc   a0,0xfff
+
+Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ riscv64.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/riscv64.c b/riscv64.c
+index d8de3d56e1b7..1e20a09a81ae 100644
+--- a/riscv64.c
++++ b/riscv64.c
+@@ -988,6 +988,7 @@ riscv64_init(int when)
+ 		machdep->is_task_addr = riscv64_is_task_addr;
+ 		machdep->get_smp_cpus = riscv64_get_smp_cpus;
+ 		machdep->value_to_symbol = generic_machdep_value_to_symbol;
++		machdep->dis_filter = generic_dis_filter;
+ 		machdep->show_interrupts = generic_show_interrupts;
+ 		machdep->get_irq_affinity = generic_get_irq_affinity;
+ 		machdep->init_kernel_pgd = NULL; /* pgd set by symbol_value("swapper_pg_dir") */
+-- 
+2.37.1
+

0054-RISCV64-Add-irq-command-support.patch

@@ -0,0 +1,36 @@
+From b4d78e7f96564ecbdbfe4b4b70a1c6d65429bbb9 Mon Sep 17 00:00:00 2001
+From: Xianting Tian <xianting.tian@linux.alibaba.com>
+Date: Thu, 20 Oct 2022 09:50:09 +0800
+Subject: [PATCH 54/89] RISCV64: Add irq command support
+
+With the patch, we can get the irq info,
+crash> irq
+ IRQ   IRQ_DESC/_DATA      IRQACTION      NAME
+ 0       (unused)          (unused)
+ 1   ff60000001329600  ff60000001d17180  "101000.rtc"
+ 2   ff60000001329800  ff60000001d17680  "ttyS0"
+ 3   ff60000001329a00  ff60000001c33c00  "virtio0"
+ 4   ff60000001329c00  ff60000001c33f80  "virtio1"
+ 5   ff6000000120f400  ff60000001216000  "riscv-timer"
+
+Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ riscv64.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/riscv64.c b/riscv64.c
+index 1e20a09a81ae..2355daca7aac 100644
+--- a/riscv64.c
++++ b/riscv64.c
+@@ -989,6 +989,7 @@ riscv64_init(int when)
+ 		machdep->get_smp_cpus = riscv64_get_smp_cpus;
+ 		machdep->value_to_symbol = generic_machdep_value_to_symbol;
+ 		machdep->dis_filter = generic_dis_filter;
++		machdep->dump_irq = generic_dump_irq;
+ 		machdep->show_interrupts = generic_show_interrupts;
+ 		machdep->get_irq_affinity = generic_get_irq_affinity;
+ 		machdep->init_kernel_pgd = NULL; /* pgd set by symbol_value("swapper_pg_dir") */
+-- 
+2.37.1
+

0055-RISCV64-Add-bt-command-support.patch

@@ -0,0 +1,413 @@
+From 75afbf54dd183b05a8b7363390df4a198155580a Mon Sep 17 00:00:00 2001
+From: Xianting Tian <xianting.tian@linux.alibaba.com>
+Date: Thu, 20 Oct 2022 09:50:10 +0800
+Subject: [PATCH 55/89] RISCV64: Add 'bt' command support
+
+1, Add the implementation to get stack frame from active & inactive
+   task's stack.
+2, Add 'bt -l' command support get a line number associated with a
+   current pc address.
+3, Add 'bt -f' command support to display all stack data contained
+   in a frame
+
+With the patch, we can get the backtrace,
+crash> bt
+PID: 113      TASK: ff6000000226c200  CPU: 0    COMMAND: "sh"
+ #0 [ff20000010333b90] riscv_crash_save_regs at ffffffff800078f8
+ #1 [ff20000010333cf0] panic at ffffffff806578c6
+ #2 [ff20000010333d50] sysrq_reset_seq_param_set at ffffffff8038c03c
+ #3 [ff20000010333da0] __handle_sysrq at ffffffff8038c604
+ #4 [ff20000010333e00] write_sysrq_trigger at ffffffff8038cae4
+ #5 [ff20000010333e20] proc_reg_write at ffffffff801b7ee8
+ #6 [ff20000010333e40] vfs_write at ffffffff80152bb2
+ #7 [ff20000010333e80] ksys_write at ffffffff80152eda
+ #8 [ff20000010333ed0] sys_write at ffffffff80152f52
+
+crash> bt -l
+PID: 113      TASK: ff6000000226c200  CPU: 0    COMMAND: "sh"
+ #0 [ff20000010333b90] riscv_crash_save_regs at ffffffff800078f8
+    /buildroot/qemu_riscv64_virt_defconfig/build/linux-custom/arch/riscv/kernel/crash_save_regs.S: 47
+ #1 [ff20000010333cf0] panic at ffffffff806578c6
+    /buildroot/qemu_riscv64_virt_defconfig/build/linux-custom/kernel/panic.c: 276
+ ... ...
+
+crash> bt -f
+PID: 113      TASK: ff6000000226c200  CPU: 0    COMMAND: "sh"
+ #0 [ff20000010333b90] riscv_crash_save_regs at ffffffff800078f8
+    [PC: ffffffff800078f8 RA: ffffffff806578c6 SP: ff20000010333b90 SIZE: 352]
+    ff20000010333b90: ff20000010333bb0 ffffffff800078f8
+    ff20000010333ba0: ffffffff8008862c ff20000010333b90
+    ff20000010333bb0: ffffffff810dde38 ff6000000226c200
+    ff20000010333bc0: ffffffff8032be68 0720072007200720
+ ... ...
+
+Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ netdump.c |  13 +++
+ riscv64.c | 283 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 296 insertions(+)
+
+diff --git a/netdump.c b/netdump.c
+index c4c8baae0d20..4ef5807a641b 100644
+--- a/netdump.c
++++ b/netdump.c
+@@ -42,6 +42,7 @@ static void get_netdump_regs_ppc64(struct bt_info *, ulong *, ulong *);
+ static void get_netdump_regs_arm(struct bt_info *, ulong *, ulong *);
+ static void get_netdump_regs_arm64(struct bt_info *, ulong *, ulong *);
+ static void get_netdump_regs_mips(struct bt_info *, ulong *, ulong *);
++static void get_netdump_regs_riscv(struct bt_info *, ulong *, ulong *);
+ static void check_dumpfile_size(char *);
+ static int proc_kcore_init_32(FILE *, int);
+ static int proc_kcore_init_64(FILE *, int);
+@@ -2675,6 +2676,10 @@ get_netdump_regs(struct bt_info *bt, ulong *eip, ulong *esp)
+ 		return get_netdump_regs_mips(bt, eip, esp);
+ 		break;
+ 
++	case EM_RISCV:
++		get_netdump_regs_riscv(bt, eip, esp);
++		break;
++
+ 	default:
+ 		error(FATAL, 
+ 		   "support for ELF machine type %d not available\n",
+@@ -2931,6 +2936,8 @@ display_regs_from_elf_notes(int cpu, FILE *ofp)
+ 		mips_display_regs_from_elf_notes(cpu, ofp);
+ 	} else if (machine_type("MIPS64")) {
+ 		mips64_display_regs_from_elf_notes(cpu, ofp);
++	} else if (machine_type("RISCV64")) {
++		riscv64_display_regs_from_elf_notes(cpu, ofp);
+ 	}
+ }
+ 
+@@ -3877,6 +3884,12 @@ get_netdump_regs_mips(struct bt_info *bt, ulong *eip, ulong *esp)
+ 	machdep->get_stack_frame(bt, eip, esp);
+ }
+ 
++static void
++get_netdump_regs_riscv(struct bt_info *bt, ulong *eip, ulong *esp)
++{
++	machdep->get_stack_frame(bt, eip, esp);
++}
++
+ int 
+ is_partial_netdump(void)
+ {
+diff --git a/riscv64.c b/riscv64.c
+index 2355daca7aac..4c9b35bb93f2 100644
+--- a/riscv64.c
++++ b/riscv64.c
+@@ -33,6 +33,17 @@ static int riscv64_uvtop(struct task_context *tc, ulong vaddr,
+ static int riscv64_kvtop(struct task_context *tc, ulong kvaddr,
+ 			  physaddr_t *paddr, int verbose);
+ static void riscv64_cmd_mach(void);
++static void riscv64_stackframe_init(void);
++static void riscv64_back_trace_cmd(struct bt_info *bt);
++static int riscv64_get_dumpfile_stack_frame(struct bt_info *bt,
++					     ulong *nip, ulong *ksp);
++static void riscv64_get_stack_frame(struct bt_info *bt, ulong *pcp,
++				     ulong *spp);
++static int riscv64_get_frame(struct bt_info *bt, ulong *pcp,
++			      ulong *spp);
++static void riscv64_display_full_frame(struct bt_info *bt,
++				        struct riscv64_unwind_frame *current,
++				        struct riscv64_unwind_frame *previous);
+ static int riscv64_translate_pte(ulong, void *, ulonglong);
+ static int riscv64_init_active_task_regs(void);
+ static int riscv64_get_crash_notes(void);
+@@ -498,6 +509,275 @@ no_page:
+ 	return FALSE;
+ }
+ 
++/*
++ * 'bt -f' command output
++ * Display all stack data contained in a frame
++ */
++static void
++riscv64_display_full_frame(struct bt_info *bt, struct riscv64_unwind_frame *current,
++			  struct riscv64_unwind_frame *previous)
++{
++	int i, u_idx;
++	ulong *up;
++	ulong words, addr;
++	char buf[BUFSIZE];
++
++	if (previous->sp < current->sp)
++		return;
++
++	if (!(INSTACK(previous->sp, bt) && INSTACK(current->sp, bt)))
++		return;
++
++	words = (previous->sp - current->sp) / sizeof(ulong) + 1;
++	addr = current->sp;
++	u_idx = (current->sp - bt->stackbase) / sizeof(ulong);
++
++	for (i = 0; i < words; i++, u_idx++) {
++		if (!(i & 1))
++			fprintf(fp, "%s    %lx: ", i ? "\n" : "", addr);
++
++		up = (ulong *)(&bt->stackbuf[u_idx*sizeof(ulong)]);
++		fprintf(fp, "%s ", format_stack_entry(bt, buf, *up, 0));
++		addr += sizeof(ulong);
++	}
++	fprintf(fp, "\n");
++}
++
++static void
++riscv64_stackframe_init(void)
++{
++	long task_struct_thread = MEMBER_OFFSET("task_struct", "thread");
++
++	/* from arch/riscv/include/asm/processor.h */
++	long thread_reg_ra = MEMBER_OFFSET("thread_struct", "ra");
++	long thread_reg_sp = MEMBER_OFFSET("thread_struct", "sp");
++	long thread_reg_fp = MEMBER_OFFSET("thread_struct", "s");
++
++	if ((task_struct_thread == INVALID_OFFSET) ||
++	    (thread_reg_ra == INVALID_OFFSET) ||
++	    (thread_reg_sp == INVALID_OFFSET) ||
++	    (thread_reg_fp == INVALID_OFFSET) )
++		error(FATAL,
++		      "cannot determine thread_struct offsets\n");
++
++	ASSIGN_OFFSET(task_struct_thread_context_pc) =
++		task_struct_thread + thread_reg_ra;
++	ASSIGN_OFFSET(task_struct_thread_context_sp) =
++		task_struct_thread + thread_reg_sp;
++	ASSIGN_OFFSET(task_struct_thread_context_fp) =
++		task_struct_thread + thread_reg_fp;
++}
++
++static void
++riscv64_dump_backtrace_entry(struct bt_info *bt, struct syment *sym,
++			     struct riscv64_unwind_frame *current,
++			     struct riscv64_unwind_frame *previous, int level)
++{
++	const char *name = sym ? sym->name : "(invalid)";
++	struct load_module *lm;
++	char *name_plus_offset = NULL;
++	struct syment *symp;
++	ulong symbol_offset;
++	char buf[BUFSIZE];
++
++	if (bt->flags & BT_SYMBOL_OFFSET) {
++		symp = value_search(current->pc, &symbol_offset);
++
++		if (symp && symbol_offset)
++			name_plus_offset =
++				value_to_symstr(current->pc, buf, bt->radix);
++	}
++
++	fprintf(fp, "%s#%d [%016lx] %s at %016lx",
++		level < 10 ? " " : "",
++		level,
++		current->sp,
++		name_plus_offset ? name_plus_offset : name,
++		current->pc);
++
++	if (module_symbol(current->pc, NULL, &lm, NULL, 0))
++		fprintf(fp, " [%s]", lm->mod_name);
++
++	fprintf(fp, "\n");
++
++	/*
++	 * 'bt -l', get a line number associated with a current pc address.
++	 */
++	if (bt->flags & BT_LINE_NUMBERS) {
++		get_line_number(current->pc, buf, FALSE);
++		if (strlen(buf))
++			fprintf(fp, "    %s\n", buf);
++	}
++
++	/* bt -f */
++	if (bt->flags & BT_FULL) {
++		fprintf(fp, "    "
++			"[PC: %016lx RA: %016lx SP: %016lx SIZE: %ld]\n",
++			current->pc,
++			previous->pc,
++			current->sp,
++			previous->sp - current->sp);
++		riscv64_display_full_frame(bt, current, previous);
++	}
++}
++
++/*
++ * Unroll a kernel stack.
++ */
++static void
++riscv64_back_trace_cmd(struct bt_info *bt)
++{
++	struct riscv64_unwind_frame current, previous;
++	struct stackframe curr_frame;
++	int level = 0;
++
++	if (bt->flags & BT_REGS_NOT_FOUND)
++		return;
++
++	current.pc = bt->instptr;
++	current.sp = bt->stkptr;
++	current.fp = bt->frameptr;
++
++	if (!INSTACK(current.sp, bt))
++		return;
++
++	for (;;) {
++		struct syment *symbol = NULL;
++		struct stackframe *frameptr;
++		ulong low, high;
++		ulong offset;
++
++		if (CRASHDEBUG(8))
++			fprintf(fp, "level %d pc %#lx sp %lx fp 0x%lx\n",
++				level, current.pc, current.sp, current.fp);
++
++		/* Validate frame pointer */
++		low = current.sp + sizeof(struct stackframe);
++		high = bt->stacktop;
++		if (current.fp < low || current.fp > high || current.fp & 0x7) {
++			if (CRASHDEBUG(8))
++				fprintf(fp, "fp 0x%lx sp 0x%lx low 0x%lx high 0x%lx\n",
++					current.fp, current.sp, low, high);
++			return;
++		}
++
++		symbol = value_search(current.pc, &offset);
++		if (!symbol)
++			return;
++
++		frameptr = (struct stackframe *)current.fp - 1;
++		if (!readmem((ulong)frameptr, KVADDR, &curr_frame,
++		    sizeof(curr_frame), "get stack frame", RETURN_ON_ERROR))
++			return;
++
++		previous.pc = curr_frame.ra;
++		previous.fp = curr_frame.fp;
++		previous.sp = current.fp;
++
++		riscv64_dump_backtrace_entry(bt, symbol, &current, &previous, level++);
++
++		current.pc = previous.pc;
++		current.fp = previous.fp;
++		current.sp = previous.sp;
++
++		if (CRASHDEBUG(8))
++			fprintf(fp, "next %d pc %#lx sp %#lx fp %lx\n",
++				level, current.pc, current.sp, current.fp);
++	}
++}
++
++/*
++ * Get a stack frame combination of pc and ra from the most relevant spot.
++ */
++static void
++riscv64_get_stack_frame(struct bt_info *bt, ulong *pcp, ulong *spp)
++{
++	ulong ksp = 0, nip = 0;
++	int ret = 0;
++
++	if (DUMPFILE() && is_task_active(bt->task))
++		ret = riscv64_get_dumpfile_stack_frame(bt, &nip, &ksp);
++	else
++		ret = riscv64_get_frame(bt, &nip, &ksp);
++
++	if (!ret)
++		error(WARNING, "cannot determine starting stack frame for task %lx\n",
++			bt->task);
++
++	if (pcp)
++		*pcp = nip;
++	if (spp)
++		*spp = ksp;
++}
++
++/*
++ * Get the starting point for the active cpu in a diskdump.
++ */
++static int
++riscv64_get_dumpfile_stack_frame(struct bt_info *bt, ulong *nip, ulong *ksp)
++{
++	const struct machine_specific *ms = machdep->machspec;
++	struct riscv64_register *regs;
++	ulong epc, sp;
++
++	if (!ms->crash_task_regs) {
++		bt->flags |= BT_REGS_NOT_FOUND;
++		return FALSE;
++	}
++
++	/*
++	 * We got registers for panic task from crash_notes. Just return them.
++	 */
++	regs = &ms->crash_task_regs[bt->tc->processor];
++	epc = regs->regs[RISCV64_REGS_EPC];
++	sp = regs->regs[RISCV64_REGS_SP];
++
++	/*
++	 * Set stack frame ptr.
++	 */
++	bt->frameptr = regs->regs[RISCV64_REGS_FP];
++
++	if (nip)
++		*nip = epc;
++	if (ksp)
++		*ksp = sp;
++
++	bt->machdep = regs;
++
++	return TRUE;
++}
++
++/*
++ * Do the work for riscv64_get_stack_frame() for non-active tasks.
++ * Get SP and PC values for idle tasks.
++ */
++static int
++riscv64_get_frame(struct bt_info *bt, ulong *pcp, ulong *spp)
++{
++	if (!bt->tc || !(tt->flags & THREAD_INFO))
++		return FALSE;
++
++	if (!readmem(bt->task + OFFSET(task_struct_thread_context_pc),
++		     KVADDR, pcp, sizeof(*pcp),
++		     "thread_struct.ra",
++		     RETURN_ON_ERROR))
++		return FALSE;
++
++	if (!readmem(bt->task + OFFSET(task_struct_thread_context_sp),
++		     KVADDR, spp, sizeof(*spp),
++		     "thread_struct.sp",
++		     RETURN_ON_ERROR))
++		return FALSE;
++
++	if (!readmem(bt->task + OFFSET(task_struct_thread_context_fp),
++		     KVADDR, &bt->frameptr, sizeof(bt->frameptr),
++		     "thread_struct.fp",
++		     RETURN_ON_ERROR))
++		return FALSE;
++
++	return TRUE;
++}
++
+ static int
+ riscv64_vtop_4level_4k(ulong *pgd, ulong vaddr, physaddr_t *paddr, int verbose)
+ {
+@@ -978,6 +1258,8 @@ riscv64_init(int when)
+ 		machdep->uvtop = riscv64_uvtop;
+ 		machdep->kvtop = riscv64_kvtop;
+ 		machdep->cmd_mach = riscv64_cmd_mach;
++		machdep->get_stack_frame = riscv64_get_stack_frame;
++		machdep->back_trace = riscv64_back_trace_cmd;
+ 
+ 		machdep->vmalloc_start = riscv64_vmalloc_start;
+ 		machdep->processor_speed = riscv64_processor_speed;
+@@ -998,6 +1280,7 @@ riscv64_init(int when)
+ 	case POST_GDB:
+ 		machdep->section_size_bits = _SECTION_SIZE_BITS;
+ 		machdep->max_physmem_bits = _MAX_PHYSMEM_BITS;
++		riscv64_stackframe_init();
+ 		riscv64_page_type_init();
+ 
+ 		if (!machdep->hz)
+-- 
+2.37.1
+

0056-RISCV64-Add-help-r-command-support.patch

@@ -0,0 +1,80 @@
+From 15ac3968a929adebc27985be77fe90d3847abd57 Mon Sep 17 00:00:00 2001
+From: Xianting Tian <xianting.tian@linux.alibaba.com>
+Date: Thu, 20 Oct 2022 09:50:11 +0800
+Subject: [PATCH 56/89] RISCV64: Add 'help -r' command support
+
+Add support form printing out the registers from the dump file.
+
+With the patch, we can get the regs,
+crash> help -r
+CPU 0:
+epc : 00ffffffa5537400 ra : ffffffff80088620 sp : ff2000001039bb90
+ gp : ffffffff810dde38 tp : ff60000002269600 t0 : ffffffff8032be5c
+ t1 : 0720072007200720 t2 : 666666666666663c s0 : ff2000001039bcf0
+ s1 : 0000000000000000 a0 : ff2000001039bb98 a1 : 0000000000000001
+ a2 : 0000000000000010 a3 : 0000000000000000 a4 : 0000000000000000
+ a5 : ff60000001c7d000 a6 : 000000000000003c a7 : ffffffff8035c998
+ s2 : ffffffff810df0a8 s3 : ffffffff810df718 s4 : ff2000001039bb98
+ s5 : 0000000000000000 s6 : 0000000000000007 s7 : ffffffff80c4a468
+ s8 : 00fffffffde45410 s9 : 0000000000000007 s10: 00aaaaaad1640700
+ s11: 0000000000000001 t3 : ff60000001218f00 t4 : ff60000001218f00
+ t5 : ff60000001218000 t6 : ff2000001039b988
+
+Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ riscv64.c | 38 ++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 38 insertions(+)
+
+diff --git a/riscv64.c b/riscv64.c
+index 4c9b35bb93f2..6d1d3b5f36d1 100644
+--- a/riscv64.c
++++ b/riscv64.c
+@@ -1320,6 +1320,44 @@ riscv64_init(int when)
+ void
+ riscv64_display_regs_from_elf_notes(int cpu, FILE *ofp)
+ {
++	const struct machine_specific *ms = machdep->machspec;
++	struct riscv64_register *regs;
++
++	if (!ms->crash_task_regs) {
++		error(INFO, "registers not collected for cpu %d\n", cpu);
++		return;
++	}
++
++	regs = &ms->crash_task_regs[cpu];
++	if (!regs->regs[RISCV64_REGS_SP] && !regs->regs[RISCV64_REGS_EPC]) {
++		error(INFO, "registers not collected for cpu %d\n", cpu);
++		return;
++	}
++
++	/* Print riscv64 32 regs */
++	fprintf(ofp,
++		"epc : " REG_FMT " ra : " REG_FMT " sp : " REG_FMT "\n"
++		" gp : " REG_FMT " tp : " REG_FMT " t0 : " REG_FMT "\n"
++		" t1 : " REG_FMT " t2 : " REG_FMT " s0 : " REG_FMT "\n"
++		" s1 : " REG_FMT " a0 : " REG_FMT " a1 : " REG_FMT "\n"
++		" a2 : " REG_FMT " a3 : " REG_FMT " a4 : " REG_FMT "\n"
++		" a5 : " REG_FMT " a6 : " REG_FMT " a7 : " REG_FMT "\n"
++		" s2 : " REG_FMT " s3 : " REG_FMT " s4 : " REG_FMT "\n"
++		" s5 : " REG_FMT " s6 : " REG_FMT " s7 : " REG_FMT "\n"
++		" s8 : " REG_FMT " s9 : " REG_FMT " s10: " REG_FMT "\n"
++		" s11: " REG_FMT " t3 : " REG_FMT " t4 : " REG_FMT "\n"
++		" t5 : " REG_FMT " t6 : " REG_FMT "\n",
++		regs->regs[0],  regs->regs[1],  regs->regs[2],
++		regs->regs[3],  regs->regs[4],  regs->regs[5],
++		regs->regs[6],  regs->regs[7],  regs->regs[8],
++		regs->regs[9],  regs->regs[10], regs->regs[11],
++		regs->regs[12], regs->regs[13], regs->regs[14],
++		regs->regs[15], regs->regs[16], regs->regs[17],
++		regs->regs[18], regs->regs[19], regs->regs[20],
++		regs->regs[21], regs->regs[22], regs->regs[23],
++		regs->regs[24], regs->regs[25], regs->regs[26],
++		regs->regs[27], regs->regs[28], regs->regs[29],
++		regs->regs[30], regs->regs[31]);
+ }
+ 
+ #else /* !RISCV64 */
+-- 
+2.37.1
+

0057-RISCV64-Add-help-m-M-command-support.patch

@@ -0,0 +1,141 @@
+From 012c8ebc3d6d71c995522dcf8d8aad530cdb4d02 Mon Sep 17 00:00:00 2001
+From: Xianting Tian <xianting.tian@linux.alibaba.com>
+Date: Thu, 20 Oct 2022 09:50:12 +0800
+Subject: [PATCH 57/89] RISCV64: Add 'help -m/M' command support
+
+Add riscv64_dump_machdep_table() implementation, display machdep_table.
+
+crash> help -m
+              flags: 80 ()
+             kvbase: ff60000000000000
+  identity_map_base: ff60000000000000
+           pagesize: 4096
+          pageshift: 12
+           pagemask: fffffffffffff000
+         pageoffset: fff
+        pgdir_shift: 48
+       ptrs_per_pgd: 512
+       ptrs_per_pte: 512
+          stacksize: 16384
+                 hz: 250
+            memsize: 1071644672 (0x3fe00000)
+               bits: 64
+         back_trace: riscv64_back_trace_cmd()
+    processor_speed: riscv64_processor_speed()
+              uvtop: riscv64_uvtop()
+              kvtop: riscv64_kvtop()
+    get_stack_frame: riscv64_get_stack_frame()
+      get_stackbase: generic_get_stackbase()
+       get_stacktop: generic_get_stacktop()
+      translate_pte: riscv64_translate_pte()
+        memory_size: generic_memory_size()
+      vmalloc_start: riscv64_vmalloc_start()
+       is_task_addr: riscv64_is_task_addr()
+      verify_symbol: riscv64_verify_symbol()
+         dis_filter: generic_dis_filter()
+           dump_irq: generic_dump_irq()
+    show_interrupts: generic_show_interrupts()
+   get_irq_affinity: generic_get_irq_affinity()
+           cmd_mach: riscv64_cmd_mach()
+       get_smp_cpus: riscv64_get_smp_cpus()
+          is_kvaddr: riscv64_is_kvaddr()
+          is_uvaddr: riscv64_is_uvaddr()
+       verify_paddr: generic_verify_paddr()
+    init_kernel_pgd: NULL
+    value_to_symbol: generic_machdep_value_to_symbol()
+  line_number_hooks: NULL
+      last_pgd_read: ffffffff810e9000
+      last_p4d_read: 81410000
+      last_pud_read: 81411000
+      last_pmd_read: 81412000
+     last_ptbl_read: 81415000
+                pgd: 560d586f3ab0
+                p4d: 560d586f4ac0
+                pud: 560d586f5ad0
+                pmd: 560d586f6ae0
+               ptbl: 560d586f7af0
+  section_size_bits: 27
+   max_physmem_bits: 56
+  sections_per_root: 0
+           machspec: 560d57d204a0
+
+Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ riscv64.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 59 insertions(+), 1 deletion(-)
+
+diff --git a/riscv64.c b/riscv64.c
+index 6d1d3b5f36d1..5e8c7d12227c 100644
+--- a/riscv64.c
++++ b/riscv64.c
+@@ -132,7 +132,65 @@ riscv64_verify_symbol(const char *name, ulong value, char type)
+ void
+ riscv64_dump_machdep_table(ulong arg)
+ {
+-	/* TODO: */
++	int others = 0;
++
++	fprintf(fp, "              flags: %lx (", machdep->flags);
++	if (machdep->flags & KSYMS_START)
++		fprintf(fp, "%sKSYMS_START", others++ ? "|" : "");
++	fprintf(fp, ")\n");
++
++	fprintf(fp, "             kvbase: %lx\n", machdep->kvbase);
++	fprintf(fp, "  identity_map_base: %lx\n", machdep->identity_map_base);
++	fprintf(fp, "           pagesize: %d\n", machdep->pagesize);
++	fprintf(fp, "          pageshift: %d\n", machdep->pageshift);
++	fprintf(fp, "           pagemask: %llx\n", machdep->pagemask);
++	fprintf(fp, "         pageoffset: %lx\n", machdep->pageoffset);
++	fprintf(fp, "        pgdir_shift: %ld\n", machdep->machspec->va_bits - 9);
++	fprintf(fp, "       ptrs_per_pgd: %u\n", PTRS_PER_PGD);
++	fprintf(fp, "       ptrs_per_pte: %d\n", PTRS_PER_PTE);
++	fprintf(fp, "          stacksize: %ld\n", machdep->stacksize);
++	fprintf(fp, "                 hz: %d\n", machdep->hz);
++	fprintf(fp, "            memsize: %ld (0x%lx)\n",
++		machdep->memsize, machdep->memsize);
++	fprintf(fp, "               bits: %d\n", machdep->bits);
++	fprintf(fp, "         back_trace: riscv64_back_trace_cmd()\n");
++	fprintf(fp, "    processor_speed: riscv64_processor_speed()\n");
++	fprintf(fp, "              uvtop: riscv64_uvtop()\n");
++	fprintf(fp, "              kvtop: riscv64_kvtop()\n");
++	fprintf(fp, "    get_stack_frame: riscv64_get_stack_frame()\n");
++	fprintf(fp, "      get_stackbase: generic_get_stackbase()\n");
++	fprintf(fp, "       get_stacktop: generic_get_stacktop()\n");
++	fprintf(fp, "      translate_pte: riscv64_translate_pte()\n");
++	fprintf(fp, "        memory_size: generic_memory_size()\n");
++	fprintf(fp, "      vmalloc_start: riscv64_vmalloc_start()\n");
++	fprintf(fp, "       is_task_addr: riscv64_is_task_addr()\n");
++	fprintf(fp, "      verify_symbol: riscv64_verify_symbol()\n");
++	fprintf(fp, "         dis_filter: generic_dis_filter()\n");
++	fprintf(fp, "           dump_irq: generic_dump_irq()\n");
++	fprintf(fp, "    show_interrupts: generic_show_interrupts()\n");
++	fprintf(fp, "   get_irq_affinity: generic_get_irq_affinity()\n");
++	fprintf(fp, "           cmd_mach: riscv64_cmd_mach()\n");
++	fprintf(fp, "       get_smp_cpus: riscv64_get_smp_cpus()\n");
++	fprintf(fp, "          is_kvaddr: riscv64_is_kvaddr()\n");
++	fprintf(fp, "          is_uvaddr: riscv64_is_uvaddr()\n");
++	fprintf(fp, "       verify_paddr: generic_verify_paddr()\n");
++	fprintf(fp, "    init_kernel_pgd: NULL\n");
++	fprintf(fp, "    value_to_symbol: generic_machdep_value_to_symbol()\n");
++	fprintf(fp, "  line_number_hooks: NULL\n");
++	fprintf(fp, "      last_pgd_read: %lx\n", machdep->last_pgd_read);
++	fprintf(fp, "      last_p4d_read: %lx\n", machdep->machspec->last_p4d_read);
++	fprintf(fp, "      last_pud_read: %lx\n", machdep->last_pud_read);
++	fprintf(fp, "      last_pmd_read: %lx\n", machdep->last_pmd_read);
++	fprintf(fp, "     last_ptbl_read: %lx\n", machdep->last_ptbl_read);
++	fprintf(fp, "                pgd: %lx\n", (ulong)machdep->pgd);
++	fprintf(fp, "                p4d: %lx\n", (ulong)machdep->machspec->p4d);
++	fprintf(fp, "                pud: %lx\n", (ulong)machdep->pud);
++	fprintf(fp, "                pmd: %lx\n", (ulong)machdep->pmd);
++	fprintf(fp, "               ptbl: %lx\n", (ulong)machdep->ptbl);
++	fprintf(fp, "  section_size_bits: %ld\n", machdep->section_size_bits);
++	fprintf(fp, "   max_physmem_bits: %ld\n", machdep->max_physmem_bits);
++	fprintf(fp, "  sections_per_root: %ld\n", machdep->sections_per_root);
++	fprintf(fp, "           machspec: %lx\n", (ulong)machdep->machspec);
+ }
+ 
+ static ulong
+-- 
+2.37.1
+

0058-RISCV64-Add-mach-command-support.patch

@@ -0,0 +1,83 @@
+From 7a942ad69e1a4270dba89de9bff4f93cd6d87578 Mon Sep 17 00:00:00 2001
+From: Xianting Tian <xianting.tian@linux.alibaba.com>
+Date: Thu, 20 Oct 2022 09:50:13 +0800
+Subject: [PATCH 58/89] RISCV64: Add 'mach' command support
+
+With the patch we can get some basic machine state information,
+crash> mach
+                MACHINE TYPE: riscv64
+                 MEMORY SIZE: 1 GB
+                        CPUS: 1
+             PROCESSOR SPEED: (unknown)
+                          HZ: 250
+                   PAGE SIZE: 4096
+           KERNEL STACK SIZE: 16384
+
+Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ riscv64.c | 45 ++++++++++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 44 insertions(+), 1 deletion(-)
+
+diff --git a/riscv64.c b/riscv64.c
+index 5e8c7d12227c..ff77e41b9407 100644
+--- a/riscv64.c
++++ b/riscv64.c
+@@ -116,10 +116,53 @@ static void riscv64_get_struct_page_size(struct machine_specific *ms)
+ 	}
+ }
+ 
++/*
++ * "mach" command output.
++ */
++static void
++riscv64_display_machine_stats(void)
++{
++	struct new_utsname *uts;
++	char buf[BUFSIZE];
++	ulong mhz;
++
++	uts = &kt->utsname;
++
++	fprintf(fp, "		MACHINE TYPE: %s\n", uts->machine);
++	fprintf(fp, "		 MEMORY SIZE: %s\n", get_memory_size(buf));
++	fprintf(fp, "			CPUS: %d\n", get_cpus_to_display());
++	fprintf(fp, "	     PROCESSOR SPEED: ");
++	if ((mhz = machdep->processor_speed()))
++		fprintf(fp, "%ld Mhz\n", mhz);
++	else
++		fprintf(fp, "(unknown)\n");
++	fprintf(fp, "			  HZ: %d\n", machdep->hz);
++	fprintf(fp, "		   PAGE SIZE: %d\n", PAGESIZE());
++	fprintf(fp, "	   KERNEL STACK SIZE: %ld\n", STACKSIZE());
++}
++
+ static void
+ riscv64_cmd_mach(void)
+ {
+-	/* TODO: */
++	int c;
++
++	while ((c = getopt(argcnt, args, "cmo")) != EOF) {
++		switch (c) {
++		case 'c':
++		case 'm':
++		case 'o':
++			option_not_supported(c);
++			break;
++		default:
++			argerrs++;
++			break;
++		}
++	}
++
++	if (argerrs)
++		cmd_usage(pc->curcmd, SYNOPSIS);
++
++	riscv64_display_machine_stats();
+ }
+ 
+ static int
+-- 
+2.37.1
+

0059-RISCV64-Add-the-implementation-of-symbol-verify.patch

@@ -0,0 +1,45 @@
+From ba2d96e12463157fe2ed9c134ad9cf42481427e8 Mon Sep 17 00:00:00 2001
+From: Xianting Tian <xianting.tian@linux.alibaba.com>
+Date: Thu, 20 Oct 2022 09:50:14 +0800
+Subject: [PATCH 59/89] RISCV64: Add the implementation of symbol verify
+
+Verify the symbol to accept or reject a symbol from the kernel namelist.
+
+Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ riscv64.c | 15 ++++++++++++++-
+ 1 file changed, 14 insertions(+), 1 deletion(-)
+
+diff --git a/riscv64.c b/riscv64.c
+index ff77e41b9407..6b9a68840d4c 100644
+--- a/riscv64.c
++++ b/riscv64.c
+@@ -165,10 +165,23 @@ riscv64_cmd_mach(void)
+ 	riscv64_display_machine_stats();
+ }
+ 
++/*
++ * Accept or reject a symbol from the kernel namelist.
++ */
+ static int
+ riscv64_verify_symbol(const char *name, ulong value, char type)
+ {
+-	/* TODO: */
++	if (CRASHDEBUG(8) && name && strlen(name))
++		fprintf(fp, "%08lx %s\n", value, name);
++
++	if (!(machdep->flags & KSYMS_START)) {
++		if (STREQ(name, "_text") || STREQ(name, "_stext"))
++			machdep->flags |= KSYMS_START;
++
++		return (name && strlen(name) && !STRNEQ(name, "__func__.") &&
++			!STRNEQ(name, "__crc_"));
++	}
++
+ 	return TRUE;
+ }
+ 
+-- 
+2.37.1
+

0060-SLUB-Fix-for-offset-change-of-struct-slab-members-on.patch

@@ -0,0 +1,149 @@
+From 47d375ac822d413999c92520402c4868ce2275cc Mon Sep 17 00:00:00 2001
+From: Kazuhito Hagio <k-hagio-ab@nec.com>
+Date: Fri, 16 Dec 2022 14:03:46 +0900
+Subject: [PATCH 60/89] SLUB: Fix for offset change of struct slab members on
+ Linux 6.2-rc1
+
+The following kernel commits split slab info from struct page into
+struct slab in Linux 5.17.
+
+  d122019bf061 ("mm: Split slab into its own type")
+  07f910f9b729 ("mm: Remove slab from struct page")
+
+Crash commit 5f390ed811b0 followed the change for SLUB, but crash still
+uses the offset of page.lru inappropriately.  Luckily, it could work
+because it was the same value as the offset of slab.slab_list until
+Linux 6.1.
+
+However, kernel commit 130d4df57390 ("mm/sl[au]b: rearrange struct slab
+fields to allow larger rcu_head") in Linux 6.2-rc1 changed the offset of
+slab.slab_list.  As a result, without the patch, "kmem -s|-S" options
+print the following errors and fail to print values correctly for
+kernels configured with CONFIG_SLUB.
+
+  crash> kmem -S filp
+  CACHE             OBJSIZE  ALLOCATED     TOTAL  SLABS  SSIZE  NAME
+  kmem: filp: partial list slab: ffffcc650405ab88 invalid page.inuse: -1
+  ffff8fa0401eca00      232       1267      1792     56     8k  filp
+  ...
+  KMEM_CACHE_NODE   NODE  SLABS  PARTIAL  PER-CPU
+  ffff8fa0401cb8c0     0     56       24        8
+  NODE 0 PARTIAL:
+    SLAB              MEMORY            NODE  TOTAL  ALLOCATED  FREE
+  kmem: filp: invalid partial list slab pointer: ffffcc650405ab88
+
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ defs.h    |  1 +
+ memory.c  | 16 ++++++++++------
+ symbols.c |  1 +
+ 3 files changed, 12 insertions(+), 6 deletions(-)
+
+diff --git a/defs.h b/defs.h
+index 9c91f38328d0..31702e707bee 100644
+--- a/defs.h
++++ b/defs.h
+@@ -2188,6 +2188,7 @@ struct offset_table {                    /* stash of commonly-used offsets */
+ 	long blk_mq_tags_rqs;
+ 	long request_queue_hctx_table;
+ 	long percpu_counter_counters;
++	long slab_slab_list;
+ };
+ 
+ struct size_table {         /* stash of commonly-used sizes */
+diff --git a/memory.c b/memory.c
+index 9d003713534b..d05737cc1429 100644
+--- a/memory.c
++++ b/memory.c
+@@ -781,6 +781,8 @@ vm_init(void)
+ 		if (INVALID_MEMBER(page_slab))
+ 			MEMBER_OFFSET_INIT(page_slab, "slab", "slab_cache");
+ 
++		MEMBER_OFFSET_INIT(slab_slab_list, "slab", "slab_list");
++
+ 		MEMBER_OFFSET_INIT(page_slab_page, "page", "slab_page");
+ 		if (INVALID_MEMBER(page_slab_page))
+ 			ANON_MEMBER_OFFSET_INIT(page_slab_page, "page", "slab_page");
+@@ -19474,6 +19476,7 @@ do_node_lists_slub(struct meminfo *si, ulong node_ptr, int node)
+ {
+ 	ulong next, last, list_head, flags;
+ 	int first;
++	long list_off = VALID_MEMBER(slab_slab_list) ? OFFSET(slab_slab_list) : OFFSET(page_lru);
+ 
+ 	if (!node_ptr)
+ 		return;
+@@ -19487,7 +19490,7 @@ do_node_lists_slub(struct meminfo *si, ulong node_ptr, int node)
+ 		next == list_head ? "  (empty)\n" : "");
+ 	first = 0;
+         while (next != list_head) {
+-		si->slab = last = next - OFFSET(page_lru);
++		si->slab = last = next - list_off;
+ 		if (first++ == 0)
+ 			fprintf(fp, "  %s", slab_hdr);
+ 
+@@ -19510,7 +19513,7 @@ do_node_lists_slub(struct meminfo *si, ulong node_ptr, int node)
+ 
+ 		if (!IS_KVADDR(next) || 
+ 		    ((next != list_head) && 
+-		     !is_page_ptr(next - OFFSET(page_lru), NULL))) {
++		     !is_page_ptr(next - list_off, NULL))) {
+ 			error(INFO, 
+ 			    "%s: partial list slab: %lx invalid page.lru.next: %lx\n", 
+ 				si->curname, last, next);
+@@ -19537,7 +19540,7 @@ do_node_lists_slub(struct meminfo *si, ulong node_ptr, int node)
+ 		next == list_head ? "  (empty)\n" : "");
+ 	first = 0;
+         while (next != list_head) {
+-		si->slab = next - OFFSET(page_lru);
++		si->slab = next - list_off;
+ 		if (first++ == 0)
+ 			fprintf(fp, "  %s", slab_hdr);
+ 
+@@ -19754,6 +19757,7 @@ count_partial(ulong node, struct meminfo *si, ulong *free)
+ 	short inuse, objects;
+ 	ulong total_inuse;
+ 	ulong count = 0;
++	long list_off = VALID_MEMBER(slab_slab_list) ? OFFSET(slab_slab_list) : OFFSET(page_lru);
+ 
+ 	count = 0;
+ 	total_inuse = 0;
+@@ -19765,12 +19769,12 @@ count_partial(ulong node, struct meminfo *si, ulong *free)
+ 	hq_open();
+ 
+ 	while (next != list_head) {
+-		if (!readmem(next - OFFSET(page_lru) + OFFSET(page_inuse), 
++		if (!readmem(next - list_off + OFFSET(page_inuse),
+ 		    KVADDR, &inuse, sizeof(ushort), "page.inuse", RETURN_ON_ERROR)) {
+ 			hq_close();
+ 			return -1;
+ 		}
+-		last = next - OFFSET(page_lru);
++		last = next - list_off;
+ 
+ 		if (inuse == -1) {
+ 			error(INFO, 
+@@ -19796,7 +19800,7 @@ count_partial(ulong node, struct meminfo *si, ulong *free)
+ 		}
+ 		if (!IS_KVADDR(next) ||
+ 		    ((next != list_head) && 
+-		     !is_page_ptr(next - OFFSET(page_lru), NULL))) {
++		     !is_page_ptr(next - list_off, NULL))) {
+ 			error(INFO, "%s: partial list slab: %lx invalid page.lru.next: %lx\n", 
+ 				si->curname, last, next);
+ 			break;
+diff --git a/symbols.c b/symbols.c
+index d1b35a56aa71..9e6fca73eaf9 100644
+--- a/symbols.c
++++ b/symbols.c
+@@ -9722,6 +9722,7 @@ dump_offset_table(char *spec, ulong makestruct)
+                 OFFSET(slab_inuse));
+         fprintf(fp, "                     slab_free: %ld\n",
+                 OFFSET(slab_free));
++        fprintf(fp, "                slab_slab_list: %ld\n", OFFSET(slab_slab_list));
+ 
+         fprintf(fp, "               kmem_cache_size: %ld\n",
+                 OFFSET(kmem_cache_size));
+-- 
+2.37.1
+

0061-Fix-for-kmem-i-to-display-correct-SLAB-statistics-on.patch

@@ -0,0 +1,49 @@
+From 699717c7720cb2a397ce59d0a0380c65d2693033 Mon Sep 17 00:00:00 2001
+From: Lianbo Jiang <lijiang@redhat.com>
+Date: Fri, 23 Dec 2022 18:42:35 +0800
+Subject: [PATCH 61/89] Fix for "kmem -i" to display correct SLAB statistics on
+ Linux 5.9 and later
+
+Kernel commit d42f3245c7e2 ("mm: memcg: convert vmstat slab counters to
+bytes"), which is contained in Linux v5.9-rc1 and later kernels, renamed
+NR_SLAB_{RECLAIMABLE,UNRECLAIMABLE} to NR_SLAB_{RECLAIMABLE,UNRECLAIMABLE}_B.
+
+Without the patch, "kmem -i" command will display incorrect SLAB
+statistics:
+
+  crash> kmem -i | grep -e PAGES -e SLAB
+                   PAGES        TOTAL      PERCENTAGE
+           SLAB    89458     349.4 MB    0% of TOTAL MEM
+                   ^^^^^     ^^^^^
+
+With the patch, the actual result is:
+  crash> kmem -i | grep -e PAGES -e SLAB
+                   PAGES        TOTAL      PERCENTAGE
+           SLAB   261953    1023.3 MB    0% of TOTAL MEM
+
+Reported-by: Buland Kumar Singh <bsingh@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+---
+ memory.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/memory.c b/memory.c
+index d05737cc1429..625a94b7d7d4 100644
+--- a/memory.c
++++ b/memory.c
+@@ -8388,6 +8388,11 @@ dump_kmeminfo(void)
+ 			get_slabs = nr_slab;
+ 			if (dump_vm_stat("NR_SLAB_UNRECLAIMABLE", &nr_slab, 0))
+ 				get_slabs += nr_slab;
++		} else if (dump_vm_stat("NR_SLAB_RECLAIMABLE_B", &nr_slab, 0)) {
++			/* 5.9 and later */
++			get_slabs = nr_slab;
++			if (dump_vm_stat("NR_SLAB_UNRECLAIMABLE_B", &nr_slab, 0))
++				get_slabs += nr_slab;
+ 		}
+ 	}
+ 
+-- 
+2.37.1
+

0062-Fix-build-failure-due-to-no-EM_RISCV-with-glibc-2.23.patch

@@ -0,0 +1,49 @@
+From 4003c972c5ff0814847865a9f5487c8561a598ad Mon Sep 17 00:00:00 2001
+From: Kazuhito Hagio <k-hagio-ab@nec.com>
+Date: Tue, 27 Dec 2022 09:53:46 +0900
+Subject: [PATCH 62/89] Fix build failure due to no EM_RISCV with glibc-2.23
+ and earlier
+
+With glibc-2.23 and earlier (e.g. RHEL7), crash build fails with errors
+like this due to EM_RISCV undeclared:
+
+  $ make -j 24 warn
+  TARGET: X86_64
+  CRASH: 8.0.2++
+  GDB: 10.2
+  ...
+  symbols.c: In function 'is_kernel':
+  symbols.c:3746:8: error: 'EM_RISCV' undeclared (first use in this function)
+     case EM_RISCV:
+          ^
+  ...
+
+Define EM_RISCV as 243 [1][2] if not defined.
+
+[1] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=94e73c95d9b5
+[2] http://www.sco.com/developers/gabi/latest/ch4.eheader.html
+
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ defs.h | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/defs.h b/defs.h
+index 31702e707bee..cb04562d0d92 100644
+--- a/defs.h
++++ b/defs.h
+@@ -3493,6 +3493,10 @@ struct arm64_stackframe {
+ #define _MAX_PHYSMEM_BITS       48
+ #endif  /* MIPS64 */
+ 
++#ifndef EM_RISCV
++#define EM_RISCV		243
++#endif
++
+ #ifdef RISCV64
+ #define _64BIT_
+ #define MACHINE_TYPE		"RISCV64"
+-- 
+2.37.1
+

0063-SLAB-Fix-for-kmem-s-S-options-on-Linux-6.1-and-later.patch

@@ -0,0 +1,46 @@
+From 652681dd7fa37a20d7ef3a51a27afa7d6d3f1872 Mon Sep 17 00:00:00 2001
+From: Kazuhito Hagio <k-hagio-ab@nec.com>
+Date: Thu, 5 Jan 2023 17:18:51 +0900
+Subject: [PATCH 63/89] SLAB: Fix for "kmem -s|-S" options on Linux 6.1 and
+ later
+
+Kernel commit e36ce448a08d ("mm/slab: use kmalloc_node() for off slab
+freelist_idx_t array allocation"), which is contained in Linux 6.1 and
+later kernels, removed kmem_cache.freelist_cache member on kernels
+configured with CONFIG_SLAB=y.
+
+Without the patch, crash does not set SLAB_OVERLOAD_PAGE and
+"kmem -s|-S" options fail with the following error:
+
+  kmem: invalid structure member offset: slab_list
+        FILE: memory.c  LINE: 12156  FUNCTION: verify_slab_v2()
+
+Use kmem_cache.freelist_size instead, which was introduced together
+with kmem_cache.freelist_cache by kernel commit 8456a648cf44.
+
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ memory.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/memory.c b/memory.c
+index 625a94b7d7d4..71ded688206f 100644
+--- a/memory.c
++++ b/memory.c
+@@ -535,8 +535,11 @@ vm_init(void)
+ 	/*
+ 	 * slab: overload struct slab over struct page 
+          * https://lkml.org/lkml/2013/10/16/155
++	 *
++	 * commit e36ce448a08d removed kmem_cache.freelist_cache in 6.1,
++	 * so use freelist_size instead.
+ 	 */
+-	if (MEMBER_EXISTS("kmem_cache", "freelist_cache")) {
++	if (MEMBER_EXISTS("kmem_cache", "freelist_size")) {
+ 		vt->flags |= SLAB_OVERLOAD_PAGE;
+ 		ANON_MEMBER_OFFSET_INIT(page_s_mem, "page", "s_mem");
+ 		ANON_MEMBER_OFFSET_INIT(page_freelist, "page", "freelist");
+-- 
+2.37.1
+

0064-SLAB-Fix-for-kmem-s-S-options-on-Linux-6.2-rc1-and-l.patch

@@ -0,0 +1,233 @@
+From 4060546b051751e7e593100027d2a160723a17ee Mon Sep 17 00:00:00 2001
+From: Kazuhito Hagio <k-hagio-ab@nec.com>
+Date: Thu, 5 Jan 2023 17:36:42 +0900
+Subject: [PATCH 64/89] SLAB: Fix for "kmem -s|-S" options on Linux 6.2-rc1 and
+ later
+
+Kernel commit 130d4df57390 ("mm/sl[au]b: rearrange struct slab fields to
+allow larger rcu_head"), which is contained in Linux 6.2-rc1 and later
+kernels, changed the offset of slab.slab_list and now it's not equal to
+the offset of page.lru.
+
+Without the patch, "kmem -s|-S" options print errors and zeros for slab
+counters like this for kernels configured with CONFIG_SLAB=y.
+
+  crash> kmem -s
+  CACHE             OBJSIZE  ALLOCATED     TOTAL  SLABS  SSIZE  NAME
+  kmem: rpc_inode_cache: partial list: page/slab: fffff31ac4125190  bad active counter: 99476865
+  kmem: rpc_inode_cache: partial list: page/slab: fffff31ac4125190  bad s_mem pointer: 100000003
+  kmem: rpc_inode_cache: full list: page/slab: fffff31ac4125150  bad active counter: 99476225
+  kmem: rpc_inode_cache: full list: page/slab: fffff31ac4125150  bad active counter: 99476225
+  kmem: rpc_inode_cache: full list: page/slab: fffff31ac4125150  bad s_mem pointer: 100000005
+  ffff930202adfb40      704          0         0      0     4k rpc_inode_cache
+  ...
+
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ memory.c | 45 +++++++++++++++++++++++++--------------------
+ 1 file changed, 25 insertions(+), 20 deletions(-)
+
+diff --git a/memory.c b/memory.c
+index 71ded688206f..156de2f7b5a3 100644
+--- a/memory.c
++++ b/memory.c
+@@ -78,6 +78,7 @@ struct meminfo {           /* general purpose memory information structure */
+ 	int *freelist;
+ 	int freelist_index_size;
+ 	ulong random;
++	ulong list_offset;
+ };
+ 
+ /*
+@@ -553,6 +554,8 @@ vm_init(void)
+ 			MEMBER_OFFSET_INIT(page_freelist, "slab", "freelist");
+ 		if (INVALID_MEMBER(page_active))
+ 			MEMBER_OFFSET_INIT(page_active, "slab", "active");
++
++		MEMBER_OFFSET_INIT(slab_slab_list, "slab", "slab_list");
+ 	}
+ 
+         if (!VALID_STRUCT(kmem_slab_s) && VALID_STRUCT(slab_s)) {
+@@ -10767,6 +10770,8 @@ dump_kmem_cache_percpu_v2(struct meminfo *si)
+ 	if (vt->flags & SLAB_OVERLOAD_PAGE) {
+ 		si->freelist = si->kmem_bufctl;
+ 		si->freelist_index_size = slab_freelist_index_size();
++		si->list_offset = VALID_MEMBER(slab_slab_list) ?
++					OFFSET(slab_slab_list) : OFFSET(page_lru);
+ 	}
+ 	for (i = 0; i < vt->kmem_max_cpus; i++) 
+ 		si->cpudata[i] = (ulong *)
+@@ -11983,7 +11988,7 @@ do_slab_chain_slab_overload_page(long cmd, struct meminfo *si)
+ 					}
+ 					last = si->slab;
+ 		
+-					readmem(si->slab - OFFSET(page_lru), KVADDR, page_buf, 
++					readmem(si->slab - si->list_offset, KVADDR, page_buf,
+ 						SIZE(page), "page (slab) buffer", 
+ 						FAULT_ON_ERROR);
+ 		
+@@ -11996,8 +12001,7 @@ do_slab_chain_slab_overload_page(long cmd, struct meminfo *si)
+ 	
+ 					si->num_slabs++;
+ 		
+-					si->slab = ULONG(page_buf + 
+-						OFFSET(page_lru));
++					si->slab = ULONG(page_buf + si->list_offset);
+ 
+ 					/*
+ 				 	 *  Check for slab transition. (Tony Dziedzic)
+@@ -12024,11 +12028,11 @@ do_slab_chain_slab_overload_page(long cmd, struct meminfo *si)
+ 	case SLAB_WALKTHROUGH:
+ 		if (si->flags & SLAB_OVERLOAD_PAGE_PTR) {
+ 			specified_slab = si->spec_addr;
+-			si->slab = si->spec_addr + OFFSET(page_lru);
++			si->slab = si->spec_addr + si->list_offset;
+ 		} else { 
+ 			specified_slab = si->slab;    
+ 			if (si->slab)
+-				si->slab += OFFSET(page_lru);
++				si->slab += si->list_offset;
+ 		}
+ 		si->flags |= (SLAB_WALKTHROUGH|SLAB_FIRST_NODE);
+ 		si->flags &= ~SLAB_GET_COUNTS;
+@@ -12082,7 +12086,7 @@ do_slab_chain_slab_overload_page(long cmd, struct meminfo *si)
+ 				if (si->slab == slab_chains[s])
+ 					continue;
+ 				
+-				readmem(si->slab - OFFSET(page_lru), KVADDR, page_buf, 
++				readmem(si->slab - si->list_offset, KVADDR, page_buf,
+ 						SIZE(page), "page (slab) buffer", 
+ 						FAULT_ON_ERROR);
+ 		
+@@ -12242,7 +12246,7 @@ verify_slab_overload_page(struct meminfo *si, ulong last, int s)
+ 
+ 	errcnt = 0;
+ 
+-        if (!readmem(si->slab - OFFSET(page_lru), KVADDR, page_buf,
++        if (!readmem(si->slab - si->list_offset, KVADDR, page_buf,
+             SIZE(page), "page (slab) buffer", QUIET|RETURN_ON_ERROR)) {
+                 error(INFO, "%s: %s list: bad slab pointer: %lx\n",
+                         si->curname, list, si->slab);
+@@ -12250,7 +12254,7 @@ verify_slab_overload_page(struct meminfo *si, ulong last, int s)
+ 		return FALSE;
+         }                        
+ 
+-        list_head = (struct kernel_list_head *)(page_buf + OFFSET(page_lru));
++        list_head = (struct kernel_list_head *)(page_buf + si->list_offset);
+ 	if (!IS_KVADDR((ulong)list_head->next) || 
+ 	    !accessible((ulong)list_head->next)) {
+                 error(INFO, "%s: %s list: page/slab: %lx  bad next pointer: %lx\n",
+@@ -12569,7 +12573,7 @@ dump_slab_overload_page(struct meminfo *si)
+ 	int tmp;
+ 	ulong slab_overload_page, freelist;
+ 
+-	slab_overload_page = si->slab - OFFSET(page_lru);
++	slab_overload_page = si->slab - si->list_offset;
+ 
+         readmem(slab_overload_page + OFFSET(page_s_mem),
+                 KVADDR, &si->s_mem, sizeof(ulong),
+@@ -12796,12 +12800,12 @@ gather_slab_free_list_slab_overload_page(struct meminfo *si)
+ 
+ 	if (CRASHDEBUG(1))
+ 		fprintf(fp, "slab page: %lx active: %ld si->c_num: %ld\n", 
+-			si->slab - OFFSET(page_lru), si->s_inuse, si->c_num);
++			si->slab - si->list_offset, si->s_inuse, si->c_num);
+ 
+ 	if (si->s_inuse == si->c_num )
+ 		return;
+ 
+-	slab_overload_page = si->slab - OFFSET(page_lru);
++	slab_overload_page = si->slab - si->list_offset;
+ 	readmem(slab_overload_page + OFFSET(page_freelist),
+ 		KVADDR, &freelist, sizeof(void *), "page freelist",
+ 		FAULT_ON_ERROR);
+@@ -13099,7 +13103,7 @@ dump_slab_objects_percpu(struct meminfo *si)
+ 
+ 	if ((si->flags & ADDRESS_SPECIFIED) && 
+ 	    (vt->flags & SLAB_OVERLOAD_PAGE)) {
+-		readmem(si->slab - OFFSET(page_lru) + OFFSET(page_freelist),
++		readmem(si->slab - si->list_offset + OFFSET(page_freelist),
+ 			KVADDR, &freelist, sizeof(ulong), "page.freelist", 
+ 			FAULT_ON_ERROR);
+ 
+@@ -18713,6 +18717,9 @@ dump_kmem_cache_slub(struct meminfo *si)
+ 
+ 	si->cache_buf = GETBUF(SIZE(kmem_cache));
+ 
++	si->list_offset = VALID_MEMBER(slab_slab_list) ?
++				OFFSET(slab_slab_list) : OFFSET(page_lru);
++
+ 	if (VALID_MEMBER(page_objects) &&
+ 	    OFFSET(page_objects) == OFFSET(page_inuse))
+ 		si->flags |= SLAB_BITFIELD;
+@@ -19484,7 +19491,6 @@ do_node_lists_slub(struct meminfo *si, ulong node_ptr, int node)
+ {
+ 	ulong next, last, list_head, flags;
+ 	int first;
+-	long list_off = VALID_MEMBER(slab_slab_list) ? OFFSET(slab_slab_list) : OFFSET(page_lru);
+ 
+ 	if (!node_ptr)
+ 		return;
+@@ -19498,7 +19504,7 @@ do_node_lists_slub(struct meminfo *si, ulong node_ptr, int node)
+ 		next == list_head ? "  (empty)\n" : "");
+ 	first = 0;
+         while (next != list_head) {
+-		si->slab = last = next - list_off;
++		si->slab = last = next - si->list_offset;
+ 		if (first++ == 0)
+ 			fprintf(fp, "  %s", slab_hdr);
+ 
+@@ -19521,7 +19527,7 @@ do_node_lists_slub(struct meminfo *si, ulong node_ptr, int node)
+ 
+ 		if (!IS_KVADDR(next) || 
+ 		    ((next != list_head) && 
+-		     !is_page_ptr(next - list_off, NULL))) {
++		     !is_page_ptr(next - si->list_offset, NULL))) {
+ 			error(INFO, 
+ 			    "%s: partial list slab: %lx invalid page.lru.next: %lx\n", 
+ 				si->curname, last, next);
+@@ -19548,7 +19554,7 @@ do_node_lists_slub(struct meminfo *si, ulong node_ptr, int node)
+ 		next == list_head ? "  (empty)\n" : "");
+ 	first = 0;
+         while (next != list_head) {
+-		si->slab = next - list_off;
++		si->slab = next - si->list_offset;
+ 		if (first++ == 0)
+ 			fprintf(fp, "  %s", slab_hdr);
+ 
+@@ -19765,7 +19771,6 @@ count_partial(ulong node, struct meminfo *si, ulong *free)
+ 	short inuse, objects;
+ 	ulong total_inuse;
+ 	ulong count = 0;
+-	long list_off = VALID_MEMBER(slab_slab_list) ? OFFSET(slab_slab_list) : OFFSET(page_lru);
+ 
+ 	count = 0;
+ 	total_inuse = 0;
+@@ -19777,12 +19782,12 @@ count_partial(ulong node, struct meminfo *si, ulong *free)
+ 	hq_open();
+ 
+ 	while (next != list_head) {
+-		if (!readmem(next - list_off + OFFSET(page_inuse),
++		if (!readmem(next - si->list_offset + OFFSET(page_inuse),
+ 		    KVADDR, &inuse, sizeof(ushort), "page.inuse", RETURN_ON_ERROR)) {
+ 			hq_close();
+ 			return -1;
+ 		}
+-		last = next - list_off;
++		last = next - si->list_offset;
+ 
+ 		if (inuse == -1) {
+ 			error(INFO, 
+@@ -19808,7 +19813,7 @@ count_partial(ulong node, struct meminfo *si, ulong *free)
+ 		}
+ 		if (!IS_KVADDR(next) ||
+ 		    ((next != list_head) && 
+-		     !is_page_ptr(next - list_off, NULL))) {
++		     !is_page_ptr(next - si->list_offset, NULL))) {
+ 			error(INFO, "%s: partial list slab: %lx invalid page.lru.next: %lx\n", 
+ 				si->curname, last, next);
+ 			break;
+-- 
+2.37.1
+

0065-Port-the-maple-tree-data-structures-and-functions.patch

@@ -0,0 +1,633 @@
+From 5b61f450d213cda90dd0f50a02594a0b87151c89 Mon Sep 17 00:00:00 2001
+From: Tao Liu <ltao@redhat.com>
+Date: Tue, 10 Jan 2023 14:56:27 +0800
+Subject: [PATCH 65/89] Port the maple tree data structures and functions
+
+There have been two ways to iterate vm_area_struct until Linux 6.0:
+ 1) by rbtree, aka vma.vm_rb;
+ 2) by linked list, aka vma.vm_{next,prev}.
+However with the maple tree patches[1][2] in Linux 6.1, vm_rb and
+vm_{next,prev} are removed from vm_area_struct. The vm_area_dump()
+in crash mainly uses the linked list for vma iteration, which will
+not work for this case. So the maple tree iteration needs to be
+ported to crash.
+
+For crash, currently it only iteratively reads the maple tree,
+no more rcu safe or maple tree modification features needed.
+So we only port a subset of kernel maple tree features.
+In addition, we need to modify the ported kernel source code,
+making it compatible with crash.
+
+This patch deals with the two issues:
+ 1) Poring mt_dump() function and all its dependencies from
+    kernel source to crash, to enable crash maple tree iteration,
+ 2) adapting the ported code with crash.
+
+[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=524e00b36e8c547f5582eef3fb645a8d9fc5e3df
+[2]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=763ecb035029f500d7e6dc99acd1ad299b7726a1
+
+Signed-off-by: Tao Liu <ltao@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ Makefile     |  10 +-
+ defs.h       |  19 +++
+ maple_tree.c | 407 +++++++++++++++++++++++++++++++++++++++++++++++++++
+ maple_tree.h |  82 +++++++++++
+ 4 files changed, 515 insertions(+), 3 deletions(-)
+ create mode 100644 maple_tree.c
+ create mode 100644 maple_tree.h
+
+diff --git a/Makefile b/Makefile
+index c0de5ef8ff75..b290836ffc83 100644
+--- a/Makefile
++++ b/Makefile
+@@ -59,6 +59,7 @@ IBM_HFILES=ibm_common.h
+ SADUMP_HFILES=sadump.h
+ UNWIND_HFILES=unwind.h unwind_i.h rse.h unwind_x86.h unwind_x86_64.h
+ VMWARE_HFILES=vmware_vmss.h
++MAPLE_TREE_HFILES=maple_tree.h
+ 
+ CFILES=main.c tools.c global_data.c memory.c filesys.c help.c task.c \
+ 	kernel.c test.c gdb_interface.c configure.c net.c dev.c bpf.c \
+@@ -73,12 +74,12 @@ CFILES=main.c tools.c global_data.c memory.c filesys.c help.c task.c \
+ 	xen_hyper.c xen_hyper_command.c xen_hyper_global_data.c \
+ 	xen_hyper_dump_tables.c kvmdump.c qemu.c qemu-load.c sadump.c ipcs.c \
+ 	ramdump.c vmware_vmss.c vmware_guestdump.c \
+-	xen_dom0.c kaslr_helper.c sbitmap.c
++	xen_dom0.c kaslr_helper.c sbitmap.c maple_tree.c
+ 
+ SOURCE_FILES=${CFILES} ${GENERIC_HFILES} ${MCORE_HFILES} \
+ 	${REDHAT_CFILES} ${REDHAT_HFILES} ${UNWIND_HFILES} \
+ 	${LKCD_DUMP_HFILES} ${LKCD_TRACE_HFILES} ${LKCD_OBSOLETE_HFILES}\
+-	${IBM_HFILES} ${SADUMP_HFILES} ${VMWARE_HFILES}
++	${IBM_HFILES} ${SADUMP_HFILES} ${VMWARE_HFILES} ${MAPLE_TREE_HFILES}
+ 
+ OBJECT_FILES=main.o tools.o global_data.o memory.o filesys.o help.o task.o \
+ 	build_data.o kernel.o test.o gdb_interface.o net.o dev.o bpf.o \
+@@ -93,7 +94,7 @@ OBJECT_FILES=main.o tools.o global_data.o memory.o filesys.o help.o task.o \
+ 	xen_hyper.o xen_hyper_command.o xen_hyper_global_data.o \
+ 	xen_hyper_dump_tables.o kvmdump.o qemu.o qemu-load.o sadump.o ipcs.o \
+ 	ramdump.o vmware_vmss.o vmware_guestdump.o \
+-	xen_dom0.o kaslr_helper.o sbitmap.o
++	xen_dom0.o kaslr_helper.o sbitmap.o maple_tree.o
+ 
+ MEMORY_DRIVER_FILES=memory_driver/Makefile memory_driver/crash.c memory_driver/README
+ 
+@@ -548,6 +549,9 @@ kaslr_helper.o: ${GENERIC_HFILES} kaslr_helper.c
+ bpf.o: ${GENERIC_HFILES} bpf.c
+ 	${CC} -c ${CRASH_CFLAGS} bpf.c ${WARNING_OPTIONS} ${WARNING_ERROR}
+ 
++maple_tree.o: ${GENERIC_HFILES} ${MAPLE_TREE_HFILES} maple_tree.c
++	${CC} -c ${CRASH_CFLAGS} maple_tree.c ${WARNING_OPTIONS} ${WARNING_ERROR}
++
+ ${PROGRAM}: force
+ 	@$(MAKE) all
+ 
+diff --git a/defs.h b/defs.h
+index cb04562d0d92..46ed10e17cd2 100644
+--- a/defs.h
++++ b/defs.h
+@@ -2189,6 +2189,21 @@ struct offset_table {                    /* stash of commonly-used offsets */
+ 	long request_queue_hctx_table;
+ 	long percpu_counter_counters;
+ 	long slab_slab_list;
++	long mm_struct_mm_mt;
++	long maple_tree_ma_root;
++	long maple_tree_ma_flags;
++	long maple_node_parent;
++	long maple_node_ma64;
++	long maple_node_mr64;
++	long maple_node_slot;
++	long maple_arange_64_pivot;
++	long maple_arange_64_slot;
++	long maple_arange_64_gap;
++	long maple_arange_64_meta;
++	long maple_range_64_pivot;
++	long maple_range_64_slot;
++	long maple_metadata_end;
++	long maple_metadata_gap;
+ };
+ 
+ struct size_table {         /* stash of commonly-used sizes */
+@@ -2360,6 +2375,8 @@ struct size_table {         /* stash of commonly-used sizes */
+ 	long sbq_wait_state;
+ 	long blk_mq_tags;
+ 	long percpu_counter;
++	long maple_tree;
++	long maple_node;
+ };
+ 
+ struct array_table {
+@@ -5730,6 +5747,8 @@ int same_file(char *, char *);
+ #ifndef GDB_COMMON
+ int cleanup_memory_driver(void);
+ 
++void maple_init(void);
++int do_mptree(struct tree_data *);
+ 
+ /*
+  *  help.c 
+diff --git a/maple_tree.c b/maple_tree.c
+new file mode 100644
+index 000000000000..474faeda6252
+--- /dev/null
++++ b/maple_tree.c
+@@ -0,0 +1,407 @@
++// SPDX-License-Identifier: GPL-2.0+
++/*
++ * Maple Tree implementation
++ * Copyright (c) 2018-2022 Oracle Corporation
++ * Authors: Liam R. Howlett <Liam.Howlett@oracle.com>
++ * 	    Matthew Wilcox <willy@infradead.org>
++ *
++ * The following are copied and modified from lib/maple_tree.c
++ */
++
++#include "maple_tree.h"
++#include "defs.h"
++
++unsigned char *mt_slots = NULL;
++unsigned char *mt_pivots = NULL;
++ulong mt_max[4] = {0};
++
++#define MAPLE_BUFSIZE			512
++
++static inline ulong mte_to_node(ulong maple_enode_entry)
++{
++	return maple_enode_entry & ~MAPLE_NODE_MASK;
++}
++
++static inline enum maple_type mte_node_type(ulong maple_enode_entry)
++{
++	return (maple_enode_entry >> MAPLE_NODE_TYPE_SHIFT) &
++		MAPLE_NODE_TYPE_MASK;
++}
++
++static inline ulong mt_slot(void **slots, unsigned char offset)
++{
++	return (ulong)slots[offset];
++}
++
++static inline bool ma_is_leaf(const enum maple_type type)
++{
++	return type < maple_range_64;
++}
++
++/*************** For cmd_tree ********************/
++
++struct maple_tree_ops {
++	void (*entry)(ulong node, ulong slot, const char *path,
++		      ulong index, void *private);
++	void *private;
++	bool is_td;
++};
++
++static const char spaces[] = "                                ";
++
++static void do_mt_range64(ulong, ulong, ulong, uint, char *, ulong *,
++			  struct maple_tree_ops *);
++static void do_mt_arange64(ulong, ulong, ulong, uint, char *, ulong *,
++			   struct maple_tree_ops *);
++static void do_mt_entry(ulong, ulong, ulong, uint, uint, char *, ulong *,
++			struct maple_tree_ops *);
++static void do_mt_node(ulong, ulong, ulong, uint, char *, ulong *,
++		       struct maple_tree_ops *);
++struct req_entry *fill_member_offsets(char *);
++void dump_struct_members_fast(struct req_entry *, int, ulong);
++void dump_struct_members_for_tree(struct tree_data *, int, ulong);
++
++static void mt_dump_range(ulong min, ulong max, uint depth)
++{
++	if (min == max)
++		fprintf(fp, "%.*s%lu: ", depth * 2, spaces, min);
++	else
++		fprintf(fp, "%.*s%lu-%lu: ", depth * 2, spaces, min, max);
++}
++
++static inline bool mt_is_reserved(ulong entry)
++{
++       return (entry < MAPLE_RESERVED_RANGE) && xa_is_internal(entry);
++}
++
++static inline bool mte_is_leaf(ulong maple_enode_entry)
++{
++       return ma_is_leaf(mte_node_type(maple_enode_entry));
++}
++
++static uint mt_height(char *mt_buf)
++{
++	return (UINT(mt_buf + OFFSET(maple_tree_ma_flags)) &
++		MT_FLAGS_HEIGHT_MASK)
++	       >> MT_FLAGS_HEIGHT_OFFSET;
++}
++
++static void dump_mt_range64(char *mr64_buf)
++{
++	int i;
++
++	fprintf(fp, " contents: ");
++	for (i = 0; i < mt_slots[maple_range_64] - 1; i++)
++		fprintf(fp, "%p %lu ",
++			VOID_PTR(mr64_buf + OFFSET(maple_range_64_slot)
++				 + sizeof(void *) * i),
++			ULONG(mr64_buf + OFFSET(maple_range_64_pivot)
++			      + sizeof(ulong) * i));
++	fprintf(fp, "%p\n", VOID_PTR(mr64_buf + OFFSET(maple_range_64_slot)
++				     + sizeof(void *) * i));
++}
++
++static void dump_mt_arange64(char *ma64_buf)
++{
++	int i;
++
++	fprintf(fp, " contents: ");
++	for (i = 0; i < mt_slots[maple_arange_64]; i++)
++		fprintf(fp, "%lu ", ULONG(ma64_buf + OFFSET(maple_arange_64_gap)
++					  + sizeof(ulong) * i));
++
++	fprintf(fp, "| %02X %02X| ",
++		UCHAR(ma64_buf + OFFSET(maple_arange_64_meta) +
++		      OFFSET(maple_metadata_end)),
++		UCHAR(ma64_buf + OFFSET(maple_arange_64_meta) +
++		      OFFSET(maple_metadata_gap)));
++
++	for (i = 0; i < mt_slots[maple_arange_64] - 1; i++)
++		fprintf(fp, "%p %lu ",
++			VOID_PTR(ma64_buf + OFFSET(maple_arange_64_slot) +
++				 sizeof(void *) * i),
++			ULONG(ma64_buf + OFFSET(maple_arange_64_pivot) +
++			      sizeof(ulong) * i));
++	fprintf(fp, "%p\n", VOID_PTR(ma64_buf + OFFSET(maple_arange_64_slot) +
++				     sizeof(void *) * i));
++}
++
++static void dump_mt_entry(ulong entry, ulong min, ulong max, uint depth)
++{
++	mt_dump_range(min, max, depth);
++
++	if (xa_is_value(entry))
++		fprintf(fp, "value %ld (0x%lx) [0x%lx]\n", xa_to_value(entry),
++			xa_to_value(entry), entry);
++	else if (xa_is_zero(entry))
++		fprintf(fp, "zero (%ld)\n", xa_to_internal(entry));
++	else if (mt_is_reserved(entry))
++		fprintf(fp, "UNKNOWN ENTRY (0x%lx)\n", entry);
++	else
++		fprintf(fp, "0x%lx\n", entry);
++}
++
++static void dump_mt_node(ulong maple_node, char *node_data, uint type,
++			 ulong min, ulong max, uint depth)
++{
++	mt_dump_range(min, max, depth);
++
++	fprintf(fp, "node 0x%lx depth %d type %d parent %p",
++		maple_node, depth, type,
++		maple_node ? VOID_PTR(node_data + OFFSET(maple_node_parent)) :
++			     NULL);
++}
++
++static void do_mt_range64(ulong entry, ulong min, ulong max,
++			  uint depth, char *path, ulong *global_index,
++			  struct maple_tree_ops *ops)
++{
++	ulong maple_node_m_node = mte_to_node(entry);
++	char node_buf[MAPLE_BUFSIZE];
++	bool leaf = mte_is_leaf(entry);
++	ulong first = min, last;
++	int i;
++	int len = strlen(path);
++	struct tree_data *td = ops->is_td ? (struct tree_data *)ops->private : NULL;
++	char *mr64_buf;
++
++	if (SIZE(maple_node) > MAPLE_BUFSIZE)
++		error(FATAL, "MAPLE_BUFSIZE should be larger than maple_node struct");
++
++	readmem(maple_node_m_node, KVADDR, node_buf, SIZE(maple_node),
++		"mt_dump_range64 read maple_node", FAULT_ON_ERROR);
++
++	mr64_buf = node_buf + OFFSET(maple_node_mr64);
++
++	for (i = 0; i < mt_slots[maple_range_64]; i++) {
++		last = max;
++
++		if (i < (mt_slots[maple_range_64] - 1))
++			last = ULONG(mr64_buf + OFFSET(maple_range_64_pivot) +
++				     sizeof(ulong) * i);
++
++		else if (!VOID_PTR(mr64_buf + OFFSET(maple_range_64_slot) +
++			  sizeof(void *) * i) &&
++			 max != mt_max[mte_node_type(entry)])
++			break;
++		if (last == 0 && i > 0)
++			break;
++		if (leaf)
++			do_mt_entry(mt_slot((void **)(mr64_buf +
++						      OFFSET(maple_range_64_slot)), i),
++				    first, last, depth + 1, i, path, global_index, ops);
++		else if (VOID_PTR(mr64_buf + OFFSET(maple_range_64_slot) +
++				  sizeof(void *) * i)) {
++			sprintf(path + len, "/%d", i);
++			do_mt_node(mt_slot((void **)(mr64_buf +
++						     OFFSET(maple_range_64_slot)), i),
++				   first, last, depth + 1, path, global_index, ops);
++		}
++
++		if (last == max)
++			break;
++		if (last > max) {
++			fprintf(fp, "node %p last (%lu) > max (%lu) at pivot %d!\n",
++				mr64_buf, last, max, i);
++			break;
++		}
++		first = last + 1;
++	}
++}
++
++static void do_mt_arange64(ulong entry, ulong min, ulong max,
++			   uint depth, char *path, ulong *global_index,
++			   struct maple_tree_ops *ops)
++{
++	ulong maple_node_m_node = mte_to_node(entry);
++	char node_buf[MAPLE_BUFSIZE];
++	bool leaf = mte_is_leaf(entry);
++	ulong first = min, last;
++	int i;
++	int len = strlen(path);
++	struct tree_data *td = ops->is_td ? (struct tree_data *)ops->private : NULL;
++	char *ma64_buf;
++
++	if (SIZE(maple_node) > MAPLE_BUFSIZE)
++		error(FATAL, "MAPLE_BUFSIZE should be larger than maple_node struct");
++
++	readmem(maple_node_m_node, KVADDR, node_buf, SIZE(maple_node),
++		"mt_dump_arange64 read maple_node", FAULT_ON_ERROR);
++
++	ma64_buf = node_buf + OFFSET(maple_node_ma64);
++
++	for (i = 0; i < mt_slots[maple_arange_64]; i++) {
++		last = max;
++
++		if (i < (mt_slots[maple_arange_64] - 1))
++			last = ULONG(ma64_buf + OFFSET(maple_arange_64_pivot) +
++				     sizeof(ulong) * i);
++		else if (!VOID_PTR(ma64_buf + OFFSET(maple_arange_64_slot) +
++				   sizeof(void *) * i))
++			break;
++		if (last == 0 && i > 0)
++			break;
++
++		if (leaf)
++			do_mt_entry(mt_slot((void **)(ma64_buf +
++						      OFFSET(maple_arange_64_slot)), i),
++				    first, last, depth + 1, i, path, global_index, ops);
++		else if (VOID_PTR(ma64_buf + OFFSET(maple_arange_64_slot) +
++				  sizeof(void *) * i)) {
++			sprintf(path + len, "/%d", i);
++			do_mt_node(mt_slot((void **)(ma64_buf +
++						     OFFSET(maple_arange_64_slot)), i),
++				   first, last, depth + 1, path, global_index, ops);
++		}
++
++		if (last == max)
++			break;
++		if (last > max) {
++			fprintf(fp, "node %p last (%lu) > max (%lu) at pivot %d!\n",
++				ma64_buf, last, max, i);
++			break;
++		}
++		first = last + 1;
++	}
++}
++
++static void do_mt_entry(ulong entry, ulong min, ulong max, uint depth,
++			uint index, char *path, ulong *global_index,
++			struct maple_tree_ops *ops)
++{
++	int print_radix = 0, i;
++	static struct req_entry **e = NULL;
++	struct tree_data *td = ops->is_td ? (struct tree_data *)ops->private : NULL;
++
++	if (!td)
++		return;
++}
++
++static void do_mt_node(ulong entry, ulong min, ulong max,
++		       uint depth, char *path, ulong *global_index,
++		       struct maple_tree_ops *ops)
++{
++	ulong maple_node = mte_to_node(entry);
++	uint type = mte_node_type(entry);
++	uint i;
++	char node_buf[MAPLE_BUFSIZE];
++	struct tree_data *td = ops->is_td ? (struct tree_data *)ops->private : NULL;
++
++	if (SIZE(maple_node) > MAPLE_BUFSIZE)
++		error(FATAL, "MAPLE_BUFSIZE should be larger than maple_node struct");
++
++	readmem(maple_node, KVADDR, node_buf, SIZE(maple_node),
++		"mt_dump_node read maple_node", FAULT_ON_ERROR);
++
++	switch (type) {
++	case maple_dense:
++		for (i = 0; i < mt_slots[maple_dense]; i++) {
++			if (min + i > max)
++				fprintf(fp, "OUT OF RANGE: ");
++			do_mt_entry(mt_slot((void **)(node_buf + OFFSET(maple_node_slot)), i),
++				    min + i, min + i, depth, i, path, global_index, ops);
++		}
++		break;
++	case maple_leaf_64:
++	case maple_range_64:
++		do_mt_range64(entry, min, max, depth, path, global_index, ops);
++		break;
++	case maple_arange_64:
++		do_mt_arange64(entry, min, max, depth, path, global_index, ops);
++		break;
++	default:
++		fprintf(fp, " UNKNOWN TYPE\n");
++	}
++}
++
++static int do_maple_tree_traverse(ulong ptr, int is_root,
++				  struct maple_tree_ops *ops)
++{
++	char path[BUFSIZE] = {0};
++	char tree_buf[MAPLE_BUFSIZE];
++	ulong entry;
++	struct tree_data *td = ops->is_td ? (struct tree_data *)ops->private : NULL;
++	ulong global_index = 0;
++
++	if (SIZE(maple_tree) > MAPLE_BUFSIZE)
++		error(FATAL, "MAPLE_BUFSIZE should be larger than maple_tree struct");
++
++	if (!is_root) {
++		strcpy(path, "direct");
++		do_mt_node(ptr, 0, mt_max[mte_node_type(ptr)],
++			   0, path, &global_index, ops);
++	} else {
++		readmem(ptr, KVADDR, tree_buf, SIZE(maple_tree),
++			"mt_dump read maple_tree", FAULT_ON_ERROR);
++		entry = ULONG(tree_buf + OFFSET(maple_tree_ma_root));
++
++		if (!xa_is_node(entry))
++			do_mt_entry(entry, 0, 0, 0, 0, path, &global_index, ops);
++		else if (entry) {
++			strcpy(path, "root");
++			do_mt_node(entry, 0, mt_max[mte_node_type(entry)], 0,
++				   path, &global_index, ops);
++		}
++	}
++	return 0;
++}
++
++int do_mptree(struct tree_data *td)
++{
++	struct maple_tree_ops ops = {
++		.entry		= NULL,
++		.private	= td,
++		.is_td		= true,
++	};
++
++	int is_root = !(td->flags & TREE_NODE_POINTER);
++
++	do_maple_tree_traverse(td->start, is_root, &ops);
++
++	return 0;
++}
++
++/***********************************************/
++void maple_init(void)
++{
++	int array_len;
++
++	STRUCT_SIZE_INIT(maple_tree, "maple_tree");
++	STRUCT_SIZE_INIT(maple_node, "maple_node");
++
++	MEMBER_OFFSET_INIT(maple_tree_ma_root, "maple_tree", "ma_root");
++	MEMBER_OFFSET_INIT(maple_tree_ma_flags, "maple_tree", "ma_flags");
++
++	MEMBER_OFFSET_INIT(maple_node_parent, "maple_node", "parent");
++	MEMBER_OFFSET_INIT(maple_node_ma64, "maple_node", "ma64");
++	MEMBER_OFFSET_INIT(maple_node_mr64, "maple_node", "mr64");
++	MEMBER_OFFSET_INIT(maple_node_slot, "maple_node", "slot");
++
++	MEMBER_OFFSET_INIT(maple_arange_64_pivot, "maple_arange_64", "pivot");
++	MEMBER_OFFSET_INIT(maple_arange_64_slot, "maple_arange_64", "slot");
++	MEMBER_OFFSET_INIT(maple_arange_64_gap, "maple_arange_64", "gap");
++	MEMBER_OFFSET_INIT(maple_arange_64_meta, "maple_arange_64", "meta");
++
++	MEMBER_OFFSET_INIT(maple_range_64_pivot, "maple_range_64", "pivot");
++	MEMBER_OFFSET_INIT(maple_range_64_slot, "maple_range_64", "slot");
++
++	MEMBER_OFFSET_INIT(maple_metadata_end, "maple_metadata", "end");
++	MEMBER_OFFSET_INIT(maple_metadata_gap, "maple_metadata", "gap");
++
++	array_len = get_array_length("mt_slots", NULL, sizeof(char));
++	mt_slots = calloc(array_len, sizeof(char));
++	readmem(symbol_value("mt_slots"), KVADDR, mt_slots,
++		array_len * sizeof(char), "maple_init read mt_slots",
++		RETURN_ON_ERROR);
++
++	array_len = get_array_length("mt_pivots", NULL, sizeof(char));
++	mt_pivots = calloc(array_len, sizeof(char));
++	readmem(symbol_value("mt_pivots"), KVADDR, mt_pivots,
++		array_len * sizeof(char), "maple_init read mt_pivots",
++		RETURN_ON_ERROR);
++
++	mt_max[maple_dense]           = mt_slots[maple_dense];
++	mt_max[maple_leaf_64]         = ULONG_MAX;
++	mt_max[maple_range_64]        = ULONG_MAX;
++	mt_max[maple_arange_64]       = ULONG_MAX;
++}
+diff --git a/maple_tree.h b/maple_tree.h
+new file mode 100644
+index 000000000000..f53d5aaffd2e
+--- /dev/null
++++ b/maple_tree.h
+@@ -0,0 +1,82 @@
++/* SPDX-License-Identifier: GPL-2.0+ */
++#ifndef _MAPLE_TREE_H
++#define _MAPLE_TREE_H
++/*
++ * Maple Tree - An RCU-safe adaptive tree for storing ranges
++ * Copyright (c) 2018-2022 Oracle
++ * Authors:     Liam R. Howlett <Liam.Howlett@Oracle.com>
++ *              Matthew Wilcox <willy@infradead.org>
++ *
++ * eXtensible Arrays
++ * Copyright (c) 2017 Microsoft Corporation
++ * Author: Matthew Wilcox <willy@infradead.org>
++ *
++ * See Documentation/core-api/xarray.rst for how to use the XArray.
++ */
++#include <stdbool.h>
++#include <limits.h>
++#include <sys/types.h>
++
++/*
++ * The following are copied and modified from include/linux/maple_tree.h
++ */
++
++enum maple_type {
++	maple_dense,
++	maple_leaf_64,
++	maple_range_64,
++	maple_arange_64,
++};
++
++#define MAPLE_NODE_MASK		255UL
++
++#define MT_FLAGS_HEIGHT_OFFSET	0x02
++#define MT_FLAGS_HEIGHT_MASK	0x7C
++
++#define MAPLE_NODE_TYPE_MASK	0x0F
++#define MAPLE_NODE_TYPE_SHIFT	0x03
++
++#define MAPLE_RESERVED_RANGE	4096
++
++/*
++ * The following are copied and modified from include/linux/xarray.h
++ */
++
++#define XA_ZERO_ENTRY		xa_mk_internal(257)
++
++static inline ulong xa_mk_internal(ulong v)
++{
++	return (v << 2) | 2;
++}
++
++static inline bool xa_is_internal(ulong entry)
++{
++	return (entry & 3) == 2;
++}
++
++static inline bool xa_is_node(ulong entry)
++{
++	return xa_is_internal(entry) && entry > 4096;
++}
++
++static inline bool xa_is_value(ulong entry)
++{
++	return entry & 1;
++}
++
++static inline bool xa_is_zero(ulong entry)
++{
++	return entry == XA_ZERO_ENTRY;
++}
++
++static inline unsigned long xa_to_internal(ulong entry)
++{
++	return entry >> 2;
++}
++
++static inline unsigned long xa_to_value(ulong entry)
++{
++	return entry >> 1;
++}
++
++#endif /* _MAPLE_TREE_H */
+-- 
+2.37.1
+

0066-Add-maple-tree-support-to-tree-command.patch

@@ -0,0 +1,335 @@
+From 4a6aba5dc85a2f491f752fb37dd2838c1141375d Mon Sep 17 00:00:00 2001
+From: Tao Liu <ltao@redhat.com>
+Date: Tue, 10 Jan 2023 14:56:28 +0800
+Subject: [PATCH 66/89] Add maple tree support to "tree" command
+
+The maple tree is a new data structure for crash, so "tree" command
+needs to support it for users to dump and view the content of maple
+trees.  This patch achieves this by using ported mt_dump() and its
+related functions from kernel and adapting them with "tree" command.
+
+Also introduce a new -v arg specifically for dumping the complete
+content of a maple tree:
+
+    crash> tree -t maple 0xffff9034c006aec0 -v
+
+    maple_tree(ffff9034c006aec0) flags 309, height 2 root 0xffff9034de70041e
+
+    0-18446744073709551615: node 0xffff9034de700400 depth 0 type 3 parent 0xffff9034c006aec1 contents:...
+      0-140112331583487: node 0xffff9034c01e8800 depth 1 type 1 parent 0xffff9034de700406 contents:...
+        0-94643156942847: (nil)
+        94643156942848-94643158024191: 0xffff9035131754c0
+        94643158024192-94643160117247: (nil)
+        ...
+
+The existing options of "tree" command can work as well:
+
+    crash> tree -t maple -r mm_struct.mm_mt 0xffff9034c006aec0 -p
+    ffff9035131754c0
+      index: 1  position: root/0/1
+    ffff9035131751c8
+      index: 2  position: root/0/3
+    ffff9035131757b8
+      index: 3  position: root/0/4
+    ...
+
+    crash> tree -t maple 0xffff9034c006aec0 -p -x -s vm_area_struct.vm_start,vm_end
+    ffff9035131754c0
+      index: 1  position: root/0/1
+      vm_start = 0x5613d3c00000,
+      vm_end = 0x5613d3d08000,
+    ffff9035131751c8
+      index: 2  position: root/0/3
+      vm_start = 0x5613d3f07000,
+      vm_end = 0x5613d3f0b000,
+    ffff9035131757b8
+      index: 3  position: root/0/4
+      vm_start = 0x5613d3f0b000,
+      vm_end = 0x5613d3f14000,
+    ....
+
+Signed-off-by: Tao Liu <ltao@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ defs.h       |  1 +
+ maple_tree.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++
+ tools.c      | 67 +++++++++++++++++++++++++++++++++++++++-------------
+ 3 files changed, 114 insertions(+), 17 deletions(-)
+
+diff --git a/defs.h b/defs.h
+index 46ed10e17cd2..cc9af21a6b64 100644
+--- a/defs.h
++++ b/defs.h
+@@ -2713,6 +2713,7 @@ struct tree_data {
+ #define TREE_PARSE_MEMBER         (VERBOSE << 7)
+ #define TREE_READ_MEMBER          (VERBOSE << 8)
+ #define TREE_LINEAR_ORDER         (VERBOSE << 9)
++#define TREE_STRUCT_VERBOSE       (VERBOSE << 10)
+ 
+ #define ALIAS_RUNTIME  (1)
+ #define ALIAS_RCLOCAL  (2)
+diff --git a/maple_tree.c b/maple_tree.c
+index 474faeda6252..471136f3eb1d 100644
+--- a/maple_tree.c
++++ b/maple_tree.c
+@@ -173,6 +173,10 @@ static void do_mt_range64(ulong entry, ulong min, ulong max,
+ 
+ 	mr64_buf = node_buf + OFFSET(maple_node_mr64);
+ 
++	if (td && td->flags & TREE_STRUCT_VERBOSE) {
++		dump_mt_range64(mr64_buf);
++	}
++
+ 	for (i = 0; i < mt_slots[maple_range_64]; i++) {
+ 		last = max;
+ 
+@@ -230,6 +234,10 @@ static void do_mt_arange64(ulong entry, ulong min, ulong max,
+ 
+ 	ma64_buf = node_buf + OFFSET(maple_node_ma64);
+ 
++	if (td && td->flags & TREE_STRUCT_VERBOSE) {
++		dump_mt_arange64(ma64_buf);
++	}
++
+ 	for (i = 0; i < mt_slots[maple_arange_64]; i++) {
+ 		last = max;
+ 
+@@ -275,6 +283,51 @@ static void do_mt_entry(ulong entry, ulong min, ulong max, uint depth,
+ 
+ 	if (!td)
+ 		return;
++
++	if (!td->count && td->structname_args) {
++		/*
++		 * Retrieve all members' info only once (count == 0)
++		 * After last iteration all memory will be freed up
++		 */
++		e = (struct req_entry **)GETBUF(sizeof(*e) * td->structname_args);
++		for (i = 0; i < td->structname_args; i++)
++			e[i] = fill_member_offsets(td->structname[i]);
++	}
++
++	td->count++;
++
++	if (td->flags & TREE_STRUCT_VERBOSE) {
++		dump_mt_entry(entry, min, max, depth);
++	} else if (td->flags & VERBOSE && entry)
++		fprintf(fp, "%lx\n", entry);
++	if (td->flags & TREE_POSITION_DISPLAY && entry)
++		fprintf(fp, "  index: %ld  position: %s/%u\n",
++			++(*global_index), path, index);
++
++	if (td->structname) {
++		if (td->flags & TREE_STRUCT_RADIX_10)
++			print_radix = 10;
++		else if (td->flags & TREE_STRUCT_RADIX_16)
++			print_radix = 16;
++		else
++			print_radix = 0;
++
++		for (i = 0; i < td->structname_args; i++) {
++			switch (count_chars(td->structname[i], '.')) {
++			case 0:
++				dump_struct(td->structname[i], entry, print_radix);
++				break;
++			default:
++				if (td->flags & TREE_PARSE_MEMBER)
++					dump_struct_members_for_tree(td, i, entry);
++				else if (td->flags & TREE_READ_MEMBER)
++					dump_struct_members_fast(e[i], print_radix, entry);
++			}
++		}
++	}
++
++	if (e)
++		FREEBUF(e);
+ }
+ 
+ static void do_mt_node(ulong entry, ulong min, ulong max,
+@@ -293,6 +346,10 @@ static void do_mt_node(ulong entry, ulong min, ulong max,
+ 	readmem(maple_node, KVADDR, node_buf, SIZE(maple_node),
+ 		"mt_dump_node read maple_node", FAULT_ON_ERROR);
+ 
++	if (td && td->flags & TREE_STRUCT_VERBOSE) {
++		dump_mt_node(maple_node, node_buf, type, min, max, depth);
++	}
++
+ 	switch (type) {
+ 	case maple_dense:
+ 		for (i = 0; i < mt_slots[maple_dense]; i++) {
+@@ -335,6 +392,12 @@ static int do_maple_tree_traverse(ulong ptr, int is_root,
+ 			"mt_dump read maple_tree", FAULT_ON_ERROR);
+ 		entry = ULONG(tree_buf + OFFSET(maple_tree_ma_root));
+ 
++		if (td && td->flags & TREE_STRUCT_VERBOSE) {
++			fprintf(fp, "maple_tree(%lx) flags %X, height %u root 0x%lx\n\n",
++				ptr, UINT(tree_buf + OFFSET(maple_tree_ma_flags)),
++				mt_height(tree_buf), entry);
++		}
++
+ 		if (!xa_is_node(entry))
+ 			do_mt_entry(entry, 0, 0, 0, 0, path, &global_index, ops);
+ 		else if (entry) {
+diff --git a/tools.c b/tools.c
+index 7f64bd6328cf..cc5c3448b93e 100644
+--- a/tools.c
++++ b/tools.c
+@@ -30,7 +30,7 @@ static void dealloc_hq_entry(struct hq_entry *);
+ static void show_options(void);
+ static void dump_struct_members(struct list_data *, int, ulong);
+ static void rbtree_iteration(ulong, struct tree_data *, char *);
+-static void dump_struct_members_for_tree(struct tree_data *, int, ulong);
++void dump_struct_members_for_tree(struct tree_data *, int, ulong);
+ 
+ struct req_entry {
+ 	char *arg, *name, **member;
+@@ -40,8 +40,8 @@ struct req_entry {
+ };
+ 
+ static void print_value(struct req_entry *, unsigned int, ulong, unsigned int);
+-static struct req_entry *fill_member_offsets(char *);
+-static void dump_struct_members_fast(struct req_entry *, int, ulong);
++struct req_entry *fill_member_offsets(char *);
++void dump_struct_members_fast(struct req_entry *, int, ulong);
+ 
+ FILE *
+ set_error(char *target)
+@@ -3666,7 +3666,7 @@ dump_struct_members_fast(struct req_entry *e, int radix, ulong p)
+ 	}
+ }
+ 
+-static struct req_entry *
++struct req_entry *
+ fill_member_offsets(char *arg)
+ {
+ 	int j;
+@@ -4307,6 +4307,7 @@ dump_struct_members(struct list_data *ld, int idx, ulong next)
+ #define RADIXTREE_REQUEST (0x1)
+ #define RBTREE_REQUEST    (0x2)
+ #define XARRAY_REQUEST    (0x4)
++#define MAPLE_REQUEST     (0x8)
+ 
+ void
+ cmd_tree()
+@@ -4317,6 +4318,7 @@ cmd_tree()
+ 	struct datatype_member struct_member, *sm;
+ 	struct syment *sp;
+ 	ulong value;
++	char *type_name = NULL;
+ 
+ 	type_flag = 0;
+ 	root_offset = 0;
+@@ -4324,25 +4326,33 @@ cmd_tree()
+ 	td = &tree_data;
+ 	BZERO(td, sizeof(struct tree_data));
+ 
+-	while ((c = getopt(argcnt, args, "xdt:r:o:s:S:plN")) != EOF) {
++	while ((c = getopt(argcnt, args, "xdt:r:o:s:S:plNv")) != EOF) {
+ 		switch (c)
+ 		{
+ 		case 't':
+-			if (type_flag & (RADIXTREE_REQUEST|RBTREE_REQUEST|XARRAY_REQUEST)) {
++			if (type_flag & (RADIXTREE_REQUEST|RBTREE_REQUEST|XARRAY_REQUEST|MAPLE_REQUEST)) {
+ 				error(INFO, "multiple tree types may not be entered\n");
+ 				cmd_usage(pc->curcmd, SYNOPSIS);
+ 			}
+ 
+ 			if (STRNEQ(optarg, "ra"))
+-				if (MEMBER_EXISTS("radix_tree_root", "xa_head"))
++				if (MEMBER_EXISTS("radix_tree_root", "xa_head")) {
+ 					type_flag = XARRAY_REQUEST;
+-				else
++					type_name = "Xarrays";
++				} else {
+ 					type_flag = RADIXTREE_REQUEST;
+-			else if (STRNEQ(optarg, "rb"))
++					type_name = "radix trees";
++				}
++			else if (STRNEQ(optarg, "rb")) {
+ 				type_flag = RBTREE_REQUEST;
+-			else if (STRNEQ(optarg, "x"))
++				type_name = "rbtrees";
++			} else if (STRNEQ(optarg, "x")) {
+ 				type_flag = XARRAY_REQUEST;
+-			else {
++				type_name = "Xarrays";
++			} else if (STRNEQ(optarg, "m")) {
++				type_flag = MAPLE_REQUEST;
++				type_name = "maple trees";
++			} else {
+ 				error(INFO, "invalid tree type: %s\n", optarg);
+ 				cmd_usage(pc->curcmd, SYNOPSIS);
+ 			}
+@@ -4417,6 +4427,9 @@ cmd_tree()
+ 					"-d and -x are mutually exclusive\n");
+ 			td->flags |= TREE_STRUCT_RADIX_10;
+ 			break;
++		case 'v':
++			td->flags |= TREE_STRUCT_VERBOSE;
++			break;
+ 		default:
+ 			argerrs++;
+ 			break;
+@@ -4426,13 +4439,17 @@ cmd_tree()
+ 	if (argerrs)
+ 		cmd_usage(pc->curcmd, SYNOPSIS);
+ 
+-	if ((type_flag & (XARRAY_REQUEST|RADIXTREE_REQUEST)) && (td->flags & TREE_LINEAR_ORDER))
+-		error(FATAL, "-l option is not applicable to %s\n", 
+-			type_flag & RADIXTREE_REQUEST ? "radix trees" : "Xarrays");
++	if ((type_flag & (XARRAY_REQUEST|RADIXTREE_REQUEST|MAPLE_REQUEST)) &&
++	    (td->flags & TREE_LINEAR_ORDER))
++		error(FATAL, "-l option is not applicable to %s\n", type_name);
+ 
+-	if ((type_flag & (XARRAY_REQUEST|RADIXTREE_REQUEST)) && (td->flags & TREE_NODE_OFFSET_ENTERED))
+-		error(FATAL, "-o option is not applicable to %s\n",
+-			type_flag & RADIXTREE_REQUEST ? "radix trees" : "Xarrays");
++	if ((type_flag & (XARRAY_REQUEST|RADIXTREE_REQUEST|MAPLE_REQUEST)) &&
++	    (td->flags & TREE_NODE_OFFSET_ENTERED))
++		error(FATAL, "-o option is not applicable to %s\n", type_name);
++
++	if ((type_flag & (RBTREE_REQUEST|XARRAY_REQUEST|RADIXTREE_REQUEST)) &&
++	    (td->flags & TREE_STRUCT_VERBOSE))
++		error(FATAL, "-v option is not applicable to %s\n", type_name);
+ 
+ 	if ((td->flags & TREE_ROOT_OFFSET_ENTERED) && 
+ 	    (td->flags & TREE_NODE_POINTER))
+@@ -4506,12 +4523,26 @@ next_arg:
+ 		if (td->flags & TREE_STRUCT_RADIX_16)
+ 			fprintf(fp, "%sTREE_STRUCT_RADIX_16",
+ 				others++ ? "|" : "");
++		if (td->flags & TREE_PARSE_MEMBER)
++			fprintf(fp, "%sTREE_PARSE_MEMBER",
++				others++ ? "|" : "");
++		if (td->flags & TREE_READ_MEMBER)
++			fprintf(fp, "%sTREE_READ_MEMBER",
++				others++ ? "|" : "");
++		if (td->flags & TREE_LINEAR_ORDER)
++			fprintf(fp, "%sTREE_LINEAR_ORDER",
++				others++ ? "|" : "");
++		if (td->flags & TREE_STRUCT_VERBOSE)
++			fprintf(fp, "%sTREE_STRUCT_VERBOSE",
++				others++ ? "|" : "");
+ 		fprintf(fp, ")\n");
+ 		fprintf(fp, "              type: ");
+ 			if (type_flag & RADIXTREE_REQUEST)
+ 				fprintf(fp, "radix\n");
+ 			else if (type_flag & XARRAY_REQUEST)
+ 				fprintf(fp, "xarray\n");
++			else if (type_flag & MAPLE_REQUEST)
++				fprintf(fp, "maple\n");
+ 			else
+ 				fprintf(fp, "red-black%s", 
+ 					type_flag & RBTREE_REQUEST ? 
+@@ -4532,6 +4563,8 @@ next_arg:
+ 		do_rdtree(td);
+ 	else if (type_flag & XARRAY_REQUEST)
+ 		do_xatree(td);
++	else if (type_flag & MAPLE_REQUEST)
++		do_mptree(td);
+ 	else
+ 		do_rbtree(td);
+ 	hq_close();
+-- 
+2.37.1
+

0067-Add-do_maple_tree-for-maple-tree-operations.patch

@@ -0,0 +1,205 @@
+From 7955002f1292f0c0d02076440b441ab7ebaf650d Mon Sep 17 00:00:00 2001
+From: Tao Liu <ltao@redhat.com>
+Date: Tue, 10 Jan 2023 14:56:29 +0800
+Subject: [PATCH 67/89] Add do_maple_tree() for maple tree operations
+
+do_maple_tree() is similar to do_radix_tree() and do_xarray(), which
+takes the same do_maple_tree_traverse entry as tree command.
+
+Signed-off-by: Tao Liu <ltao@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ defs.h       |   6 +++
+ maple_tree.c | 145 +++++++++++++++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 151 insertions(+)
+
+diff --git a/defs.h b/defs.h
+index cc9af21a6b64..b2389cd82fae 100644
+--- a/defs.h
++++ b/defs.h
+@@ -5750,6 +5750,12 @@ int cleanup_memory_driver(void);
+ 
+ void maple_init(void);
+ int do_mptree(struct tree_data *);
++ulong do_maple_tree(ulong, int, struct list_pair *);
++#define MAPLE_TREE_COUNT   (1)
++#define MAPLE_TREE_SEARCH  (2)
++#define MAPLE_TREE_DUMP    (3)
++#define MAPLE_TREE_GATHER  (4)
++#define MAPLE_TREE_DUMP_CB (5)
+ 
+ /*
+  *  help.c 
+diff --git a/maple_tree.c b/maple_tree.c
+index 471136f3eb1d..807c17f7dfa0 100644
+--- a/maple_tree.c
++++ b/maple_tree.c
+@@ -40,6 +40,12 @@ static inline bool ma_is_leaf(const enum maple_type type)
+ 
+ /*************** For cmd_tree ********************/
+ 
++struct do_maple_tree_info {
++	ulong maxcount;
++	ulong count;
++	void *data;
++};
++
+ struct maple_tree_ops {
+ 	void (*entry)(ulong node, ulong slot, const char *path,
+ 		      ulong index, void *private);
+@@ -281,6 +287,9 @@ static void do_mt_entry(ulong entry, ulong min, ulong max, uint depth,
+ 	static struct req_entry **e = NULL;
+ 	struct tree_data *td = ops->is_td ? (struct tree_data *)ops->private : NULL;
+ 
++	if (ops->entry)
++		ops->entry(entry, entry, path, max, ops->private);
++
+ 	if (!td)
+ 		return;
+ 
+@@ -424,6 +433,142 @@ int do_mptree(struct tree_data *td)
+ 	return 0;
+ }
+ 
++/************* For do_maple_tree *****************/
++static void do_maple_tree_count(ulong node, ulong slot, const char *path,
++				ulong index, void *private)
++{
++	struct do_maple_tree_info *info = private;
++	info->count++;
++}
++
++static void do_maple_tree_search(ulong node, ulong slot, const char *path,
++				 ulong index, void *private)
++{
++	struct do_maple_tree_info *info = private;
++	struct list_pair *lp = info->data;
++
++	if (lp->index == index) {
++		lp->value = (void *)slot;
++		info->count = 1;
++	}
++}
++
++static void do_maple_tree_dump(ulong node, ulong slot, const char *path,
++			       ulong index, void *private)
++{
++	struct do_maple_tree_info *info = private;
++	fprintf(fp, "[%lu] %lx\n", index, slot);
++	info->count++;
++}
++
++static void do_maple_tree_gather(ulong node, ulong slot, const char *path,
++				 ulong index, void *private)
++{
++	struct do_maple_tree_info *info = private;
++	struct list_pair *lp = info->data;
++
++	if (info->maxcount) {
++		lp[info->count].index = index;
++		lp[info->count].value = (void *)slot;
++
++		info->count++;
++		info->maxcount--;
++	}
++}
++
++static void do_maple_tree_dump_cb(ulong node, ulong slot, const char *path,
++				  ulong index, void *private)
++{
++	struct do_maple_tree_info *info = private;
++	struct list_pair *lp = info->data;
++	int (*cb)(ulong) = lp->value;
++
++	/* Caller defined operation */
++	if (!cb(slot)) {
++		error(FATAL, "do_maple_tree: callback "
++		      "operation failed: entry: %ld  item: %lx\n",
++		      info->count, slot);
++	}
++	info->count++;
++}
++
++/*
++ *  do_maple_tree argument usage:
++ *
++ *    root: Address of a maple_tree_root structure
++ *
++ *    flag: MAPLE_TREE_COUNT - Return the number of entries in the tree.
++ *          MAPLE_TREE_SEARCH - Search for an entry at lp->index; if found,
++ *            store the entry in lp->value and return a count of 1; otherwise
++ *            return a count of 0.
++ *          MAPLE_TREE_DUMP - Dump all existing index/value pairs.
++ *          MAPLE_TREE_GATHER - Store all existing index/value pairs in the
++ *            passed-in array of list_pair structs starting at lp,
++ *            returning the count of entries stored; the caller can/should
++ *            limit the number of returned entries by putting the array size
++ *            (max count) in the lp->index field of the first structure
++ *            in the passed-in array.
++ *          MAPLE_TREE_DUMP_CB - Similar with MAPLE_TREE_DUMP, but for each
++ *            maple tree entry, a user defined callback at lp->value will
++ *            be invoked.
++ *
++ *     lp: Unused by MAPLE_TREE_COUNT and MAPLE_TREE_DUMP.
++ *          A pointer to a list_pair structure for MAPLE_TREE_SEARCH.
++ *          A pointer to an array of list_pair structures for
++ *          MAPLE_TREE_GATHER; the dimension (max count) of the array may
++ *          be stored in the index field of the first structure to avoid
++ *          any chance of an overrun.
++ *          For MAPLE_TREE_DUMP_CB, the lp->value must be initialized as a
++ *          callback function.  The callback prototype must be: int (*)(ulong);
++ */
++ulong
++do_maple_tree(ulong root, int flag, struct list_pair *lp)
++{
++	struct do_maple_tree_info info = {
++		.count		= 0,
++		.data		= lp,
++	};
++	struct maple_tree_ops ops = {
++		.private	= &info,
++		.is_td		= false,
++	};
++
++	switch (flag)
++	{
++	case MAPLE_TREE_COUNT:
++		ops.entry = do_maple_tree_count;
++		break;
++
++	case MAPLE_TREE_SEARCH:
++		ops.entry = do_maple_tree_search;
++		break;
++
++	case MAPLE_TREE_DUMP:
++		ops.entry = do_maple_tree_dump;
++		break;
++
++	case MAPLE_TREE_GATHER:
++		if (!(info.maxcount = lp->index))
++			info.maxcount = (ulong)(-1);   /* caller beware */
++
++		ops.entry = do_maple_tree_gather;
++		break;
++
++	case MAPLE_TREE_DUMP_CB:
++		if (lp->value == NULL) {
++			error(FATAL, "do_maple_tree: need set callback function");
++		}
++		ops.entry = do_maple_tree_dump_cb;
++		break;
++
++	default:
++		error(FATAL, "do_maple_tree: invalid flag: %lx\n", flag);
++	}
++
++	do_maple_tree_traverse(root, true, &ops);
++	return info.count;
++}
++
+ /***********************************************/
+ void maple_init(void)
+ {
+-- 
+2.37.1
+

0068-Introduce-maple-tree-vma-iteration-to-vm_area_dump.patch

@@ -0,0 +1,455 @@
+From 77e9fc571e2782b0eafe1d376cfd7f30fb08fecf Mon Sep 17 00:00:00 2001
+From: Tao Liu <ltao@redhat.com>
+Date: Tue, 10 Jan 2023 14:56:30 +0800
+Subject: [PATCH 68/89] Introduce maple tree vma iteration to vm_area_dump()
+
+Since memory.c:vm_area_dump() will iterate all vma, this patch mainly
+introduces maple tree vma iteration to it.
+
+We extract the code which handles each vma into a function. If
+mm_struct_mmap exist, aka the linked list of vma iteration available,
+we goto the original way; if not and mm_struct_mm_mt exist, aka
+maple tree is available, then we goto the maple tree vma iteration.
+
+Signed-off-by: Tao Liu <ltao@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ Makefile |   2 +-
+ memory.c | 321 +++++++++++++++++++++++++++++++++----------------------
+ 2 files changed, 193 insertions(+), 130 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index b290836ffc83..2af4dd0ae904 100644
+--- a/Makefile
++++ b/Makefile
+@@ -364,7 +364,7 @@ filesys.o: ${GENERIC_HFILES} filesys.c
+ help.o: ${GENERIC_HFILES} help.c
+ 	${CC} -c ${CRASH_CFLAGS} help.c ${WARNING_OPTIONS} ${WARNING_ERROR}
+ 
+-memory.o: ${GENERIC_HFILES} memory.c
++memory.o: ${GENERIC_HFILES} ${MAPLE_TREE_HFILES} memory.c
+ 	${CC} -c ${CRASH_CFLAGS} memory.c ${WARNING_OPTIONS} ${WARNING_ERROR}
+ 
+ test.o: ${GENERIC_HFILES} test.c
+diff --git a/memory.c b/memory.c
+index 156de2f7b5a3..5141fbea4b40 100644
+--- a/memory.c
++++ b/memory.c
+@@ -21,6 +21,7 @@
+ #include <ctype.h>
+ #include <netinet/in.h>
+ #include <byteswap.h>
++#include "maple_tree.h"
+ 
+ struct meminfo {           /* general purpose memory information structure */
+         ulong cache;       /* used by the various memory searching/dumping */
+@@ -137,6 +138,27 @@ struct searchinfo {
+ 	char buf[BUFSIZE];
+ };
+ 
++struct handle_each_vm_area_args {
++	ulong task;
++	ulong flag;
++	ulong vaddr;
++	struct reference *ref;
++	char *vma_header;
++	char *buf1;
++	char *buf2;
++	char *buf3;
++	char *buf4;
++	char *buf5;
++	ulong vma;
++	char **vma_buf;
++	struct task_mem_usage *tm;
++	int *found;
++	int *single_vma_found;
++	unsigned int radix;
++	struct task_context *tc;
++	ulong *single_vma;
++};
++
+ static char *memtype_string(int, int);
+ static char *error_handle_string(ulong);
+ static void collect_page_member_data(char *, struct meminfo *);
+@@ -299,6 +321,7 @@ static void dump_page_flags(ulonglong);
+ static ulong kmem_cache_nodelists(ulong);
+ static void dump_hstates(void);
+ static ulong freelist_ptr(struct meminfo *, ulong, ulong);
++static ulong handle_each_vm_area(struct handle_each_vm_area_args *);
+ 
+ /*
+  *  Memory display modes specific to this file.
+@@ -363,6 +386,10 @@ vm_init(void)
+ 
+         MEMBER_OFFSET_INIT(task_struct_mm, "task_struct", "mm");
+         MEMBER_OFFSET_INIT(mm_struct_mmap, "mm_struct", "mmap");
++	MEMBER_OFFSET_INIT(mm_struct_mm_mt, "mm_struct", "mm_mt");
++	if (VALID_MEMBER(mm_struct_mm_mt)) {
++		maple_init();
++	}
+         MEMBER_OFFSET_INIT(mm_struct_pgd, "mm_struct", "pgd");
+ 	MEMBER_OFFSET_INIT(mm_struct_rss, "mm_struct", "rss");
+ 	if (!VALID_MEMBER(mm_struct_rss))
+@@ -3874,7 +3901,7 @@ bailout:
+  *                        for references -- and only then does a display      
+  */
+ 
+-#define PRINT_VM_DATA()                                                  \
++#define PRINT_VM_DATA(buf4, buf5, tm)                                    \
+                 {                                                        \
+                 fprintf(fp, "%s  %s  ",                                  \
+                     mkstring(buf4, VADDR_PRLEN, CENTER|LJUST, "MM"),     \
+@@ -3896,9 +3923,9 @@ bailout:
+                     mkstring(buf5, 8, CENTER|LJUST, NULL));              \
+ 	        }
+ 
+-#define PRINT_VMA_DATA()                                                       \
++#define PRINT_VMA_DATA(buf1, buf2, buf3, buf4, vma)                            \
+ 	fprintf(fp, "%s%s%s%s%s %6llx%s%s\n",                                  \
+-                mkstring(buf4, VADDR_PRLEN, CENTER|LJUST|LONG_HEX, MKSTR(vma)),       \
++                mkstring(buf4, VADDR_PRLEN, CENTER|LJUST|LONG_HEX, MKSTR(vma)),\
+ 	        space(MINSPACE),                                               \
+                 mkstring(buf2, UVADDR_PRLEN, RJUST|LONG_HEX, MKSTR(vm_start)), \
+                 space(MINSPACE),                                               \
+@@ -3925,18 +3952,137 @@ bailout:
+    (DO_REF_SEARCH(X) && (string_exists(S)) && FILENAME_COMPONENT((S),(X)->str))
+ #define VM_REF_FOUND(X)    ((X) && ((X)->cmdflags & VM_REF_HEADER))
+ 
+-ulong
+-vm_area_dump(ulong task, ulong flag, ulong vaddr, struct reference *ref)
++static ulong handle_each_vm_area(struct handle_each_vm_area_args *args)
+ {
+-        struct task_context *tc;
+-	ulong vma;
++	char *dentry_buf, *file_buf;
+ 	ulong vm_start;
+ 	ulong vm_end;
+-	ulong vm_next, vm_mm;
+-	char *dentry_buf, *vma_buf, *file_buf;
++	ulong vm_mm;
+ 	ulonglong vm_flags;
+ 	ulong vm_file, inode;
+ 	ulong dentry, vfsmnt;
++
++	if ((args->flag & PHYSADDR) && !DO_REF_SEARCH(args->ref))
++		fprintf(fp, "%s", args->vma_header);
++
++	inode = 0;
++	BZERO(args->buf1, BUFSIZE);
++	*(args->vma_buf) = fill_vma_cache(args->vma);
++
++	vm_mm = ULONG(*(args->vma_buf) + OFFSET(vm_area_struct_vm_mm));
++	vm_end = ULONG(*(args->vma_buf) + OFFSET(vm_area_struct_vm_end));
++	vm_start = ULONG(*(args->vma_buf) + OFFSET(vm_area_struct_vm_start));
++	vm_flags = get_vm_flags(*(args->vma_buf));
++	vm_file = ULONG(*(args->vma_buf) + OFFSET(vm_area_struct_vm_file));
++
++	if (args->flag & PRINT_SINGLE_VMA) {
++		if (args->vma != *(args->single_vma))
++			return 0;
++		fprintf(fp, "%s", args->vma_header);
++		*(args->single_vma_found) = TRUE;
++	}
++
++	if (args->flag & PRINT_VMA_STRUCTS) {
++		dump_struct("vm_area_struct", args->vma, args->radix);
++		return 0;
++	}
++
++	if (vm_file && !(args->flag & VERIFY_ADDR)) {
++		file_buf = fill_file_cache(vm_file);
++		dentry = ULONG(file_buf + OFFSET(file_f_dentry));
++		dentry_buf = NULL;
++		if (dentry) {
++			dentry_buf = fill_dentry_cache(dentry);
++			if (VALID_MEMBER(file_f_vfsmnt)) {
++				vfsmnt = ULONG(file_buf + OFFSET(file_f_vfsmnt));
++				get_pathname(dentry, args->buf1, BUFSIZE, 1, vfsmnt);
++			} else
++				get_pathname(dentry, args->buf1, BUFSIZE, 1, 0);
++		}
++		if ((args->flag & PRINT_INODES) && dentry)
++			inode = ULONG(dentry_buf + OFFSET(dentry_d_inode));
++	}
++
++	if (!(args->flag & UVADDR) || ((args->flag & UVADDR) &&
++	    ((args->vaddr >= vm_start) && (args->vaddr < vm_end)))) {
++		*(args->found) = TRUE;
++
++		if (args->flag & VERIFY_ADDR)
++			return args->vma;
++
++		if (DO_REF_SEARCH(args->ref)) {
++			if (VM_REF_CHECK_HEXVAL(args->ref, args->vma) ||
++			    VM_REF_CHECK_HEXVAL(args->ref, (ulong)vm_flags) ||
++			    VM_REF_CHECK_STRING(args->ref, args->buf1)) {
++				if (!(args->ref->cmdflags & VM_REF_HEADER)) {
++					print_task_header(fp, args->tc, 0);
++					PRINT_VM_DATA(args->buf4, args->buf5, args->tm);
++					args->ref->cmdflags |= VM_REF_HEADER;
++				}
++				if (!(args->ref->cmdflags & VM_REF_VMA) ||
++				    (args->ref->cmdflags & VM_REF_PAGE)) {
++					fprintf(fp, "%s", args->vma_header);
++					args->ref->cmdflags |= VM_REF_VMA;
++					args->ref->cmdflags &= ~VM_REF_PAGE;
++					args->ref->ref1 = args->vma;
++				}
++				PRINT_VMA_DATA(args->buf1, args->buf2,
++						args->buf3, args->buf4, args->vma);
++			}
++
++			if (vm_area_page_dump(args->vma, args->task,
++			    vm_start, vm_end, vm_mm, args->ref)) {
++				if (!(args->ref->cmdflags & VM_REF_HEADER)) {
++					print_task_header(fp, args->tc, 0);
++					PRINT_VM_DATA(args->buf4, args->buf5, args->tm);
++					args->ref->cmdflags |= VM_REF_HEADER;
++				}
++				if (!(args->ref->cmdflags & VM_REF_VMA) ||
++				    (args->ref->ref1 != args->vma)) {
++					fprintf(fp, "%s", args->vma_header);
++					PRINT_VMA_DATA(args->buf1, args->buf2,
++							args->buf3, args->buf4, args->vma);
++					args->ref->cmdflags |= VM_REF_VMA;
++					args->ref->ref1 = args->vma;
++				}
++
++				args->ref->cmdflags |= VM_REF_DISPLAY;
++				vm_area_page_dump(args->vma, args->task,
++					vm_start, vm_end, vm_mm, args->ref);
++				args->ref->cmdflags &= ~VM_REF_DISPLAY;
++			}
++
++			return 0;
++		}
++
++		if (inode) {
++			fprintf(fp, "%lx%s%s%s%s%s%6llx%s%lx %s\n",
++				args->vma, space(MINSPACE),
++				mkstring(args->buf2, UVADDR_PRLEN, RJUST|LONG_HEX,
++				MKSTR(vm_start)), space(MINSPACE),
++				mkstring(args->buf3, UVADDR_PRLEN, RJUST|LONG_HEX,
++				MKSTR(vm_end)), space(MINSPACE),
++				vm_flags, space(MINSPACE), inode, args->buf1);
++		} else {
++			PRINT_VMA_DATA(args->buf1, args->buf2,
++					args->buf3, args->buf4, args->vma);
++
++			if (args->flag & (PHYSADDR|PRINT_SINGLE_VMA))
++				vm_area_page_dump(args->vma, args->task,
++				    vm_start, vm_end, vm_mm, args->ref);
++		}
++
++		if (args->flag & UVADDR)
++			return args->vma;
++	}
++	return 0;
++}
++
++ulong
++vm_area_dump(ulong task, ulong flag, ulong vaddr, struct reference *ref)
++{
++	struct task_context *tc;
++	ulong vma;
+ 	ulong single_vma;
+ 	unsigned int radix;
+ 	int single_vma_found;
+@@ -3948,6 +4094,10 @@ vm_area_dump(ulong task, ulong flag, ulong vaddr, struct reference *ref)
+ 	char buf4[BUFSIZE];
+ 	char buf5[BUFSIZE];
+ 	char vma_header[BUFSIZE];
++	char *vma_buf;
++	int i;
++	ulong mm_mt, entry_num;
++	struct list_pair *entry_list;
+ 
+         tc = task_to_context(task);
+ 	tm = &task_mem_usage;
+@@ -3981,14 +4131,14 @@ vm_area_dump(ulong task, ulong flag, ulong vaddr, struct reference *ref)
+         if (VM_REF_CHECK_HEXVAL(ref, tm->mm_struct_addr) ||
+             VM_REF_CHECK_HEXVAL(ref, tm->pgd_addr)) {
+         	print_task_header(fp, tc, 0);
+-		PRINT_VM_DATA();
++		PRINT_VM_DATA(buf4, buf5, tm);
+ 		fprintf(fp, "\n");
+                 return (ulong)NULL;
+         }
+ 
+         if (!(flag & (UVADDR|PRINT_MM_STRUCT|PRINT_VMA_STRUCTS|PRINT_SINGLE_VMA)) &&
+ 	    !DO_REF_SEARCH(ref)) 
+-		PRINT_VM_DATA();
++		PRINT_VM_DATA(buf4, buf5, tm);
+ 
+         if (!tm->mm_struct_addr) {
+ 		if (pc->curcmd_flags & MM_STRUCT_FORCE) {
+@@ -4012,9 +4162,6 @@ vm_area_dump(ulong task, ulong flag, ulong vaddr, struct reference *ref)
+                 return (ulong)NULL;
+ 	}
+ 
+-	readmem(tm->mm_struct_addr + OFFSET(mm_struct_mmap), KVADDR, 
+-		&vma, sizeof(void *), "mm_struct mmap", FAULT_ON_ERROR);
+-
+        	sprintf(vma_header, "%s%s%s%s%s  FLAGS%sFILE\n",
+                 mkstring(buf1, VADDR_PRLEN, CENTER|LJUST, "VMA"),
+                 space(MINSPACE),              
+@@ -4027,125 +4174,41 @@ vm_area_dump(ulong task, ulong flag, ulong vaddr, struct reference *ref)
+ 	    !DO_REF_SEARCH(ref)) 
+ 		fprintf(fp, "%s", vma_header);
+ 
+-	for (found = FALSE; vma; vma = vm_next) {
+-
+-		if ((flag & PHYSADDR) && !DO_REF_SEARCH(ref))
+-			fprintf(fp, "%s", vma_header);
+-
+-		inode = 0;
+-		BZERO(buf1, BUFSIZE);
+-		vma_buf = fill_vma_cache(vma);
+-
+-		vm_mm = ULONG(vma_buf + OFFSET(vm_area_struct_vm_mm));
+-		vm_end = ULONG(vma_buf + OFFSET(vm_area_struct_vm_end));
+-		vm_next = ULONG(vma_buf + OFFSET(vm_area_struct_vm_next));
+-		vm_start = ULONG(vma_buf + OFFSET(vm_area_struct_vm_start));
+-		vm_flags = get_vm_flags(vma_buf);
+-		vm_file = ULONG(vma_buf + OFFSET(vm_area_struct_vm_file));
+-		
+-		if (flag & PRINT_SINGLE_VMA) {
+-			if (vma != single_vma)
+-				continue;
+-			fprintf(fp, "%s", vma_header);
+-			single_vma_found = TRUE;
+-		}
+-
+-		if (flag & PRINT_VMA_STRUCTS) {
+-			dump_struct("vm_area_struct", vma, radix);
+-			continue;
+-		}
++	found = FALSE;
+ 
+-		if (vm_file && !(flag & VERIFY_ADDR)) {
+-			file_buf = fill_file_cache(vm_file);
+-			dentry = ULONG(file_buf + OFFSET(file_f_dentry));
+-			dentry_buf = NULL;
+-			if (dentry) {
+-				dentry_buf = fill_dentry_cache(dentry);
+-				if (VALID_MEMBER(file_f_vfsmnt)) {
+-					vfsmnt = ULONG(file_buf +
+-                                		OFFSET(file_f_vfsmnt));
+-					get_pathname(dentry, buf1, BUFSIZE,
+-						1, vfsmnt);
+-				} else {
+-					get_pathname(dentry, buf1, BUFSIZE, 
+-						1, 0);
+-				}
+-			}
+-			if ((flag & PRINT_INODES) && dentry) {
+-				inode = ULONG(dentry_buf + 
+-					OFFSET(dentry_d_inode));
++	struct handle_each_vm_area_args args = {
++		.task = task,		.flag = flag,	.vaddr = vaddr,
++		.ref = ref,		.tc = tc,	.radix = radix,
++		.tm = tm,		.buf1 = buf1,	.buf2 = buf2,
++		.buf3 = buf3,		.buf4 = buf4,	.buf5 = buf5,
++		.vma_header = vma_header,		.single_vma = &single_vma,
++		.single_vma_found = &single_vma_found,	.found = &found,
++		.vma_buf = &vma_buf,
++	};
++
++	if (INVALID_MEMBER(mm_struct_mmap) && VALID_MEMBER(mm_struct_mm_mt)) {
++		mm_mt = tm->mm_struct_addr + OFFSET(mm_struct_mm_mt);
++		entry_num = do_maple_tree(mm_mt, MAPLE_TREE_COUNT, NULL);
++		entry_list = (struct list_pair *)GETBUF(entry_num * sizeof(struct list_pair));
++		do_maple_tree(mm_mt, MAPLE_TREE_GATHER, entry_list);
++
++		for (i = 0; i < entry_num; i++) {
++			if (!!(args.vma = (ulong)entry_list[i].value) &&
++			    handle_each_vm_area(&args)) {
++				FREEBUF(entry_list);
++				return args.vma;
+ 			}
+ 		}
+-
+-		if (!(flag & UVADDR) || ((flag & UVADDR) && 
+-		    ((vaddr >= vm_start) && (vaddr < vm_end)))) {
+-			found = TRUE;
+-
+-			if (flag & VERIFY_ADDR)
+-				return vma;
+-
+-			if (DO_REF_SEARCH(ref)) {
+-				if (VM_REF_CHECK_HEXVAL(ref, vma) ||
+-				    VM_REF_CHECK_HEXVAL(ref, (ulong)vm_flags) ||
+-				    VM_REF_CHECK_STRING(ref, buf1)) {
+-					if (!(ref->cmdflags & VM_REF_HEADER)) {
+-						print_task_header(fp, tc, 0);
+-                				PRINT_VM_DATA();
+-						ref->cmdflags |= VM_REF_HEADER;
+-					}
+-					if (!(ref->cmdflags & VM_REF_VMA) ||
+-					    (ref->cmdflags & VM_REF_PAGE)) { 
+-						fprintf(fp, "%s", vma_header);
+-						ref->cmdflags |= VM_REF_VMA;
+-						ref->cmdflags &= ~VM_REF_PAGE;
+-						ref->ref1 = vma;
+-					}
+-					PRINT_VMA_DATA();
+-				}
+-
+-				if (vm_area_page_dump(vma, task, 
+-				    vm_start, vm_end, vm_mm, ref)) {
+-					if (!(ref->cmdflags & VM_REF_HEADER)) {
+-					        print_task_header(fp, tc, 0);
+-                			        PRINT_VM_DATA();
+-						ref->cmdflags |= VM_REF_HEADER;
+-					}
+-                                        if (!(ref->cmdflags & VM_REF_VMA) ||
+-                                            (ref->ref1 != vma)) {
+-                                                fprintf(fp, "%s", vma_header);
+-						PRINT_VMA_DATA();
+-                                                ref->cmdflags |= VM_REF_VMA;
+-                                                ref->ref1 = vma;
+-					}
+-
+-					ref->cmdflags |= VM_REF_DISPLAY;
+-					vm_area_page_dump(vma, task,
+-						vm_start, vm_end, vm_mm, ref); 
+-					ref->cmdflags &= ~VM_REF_DISPLAY;
+-				}
+-
+-				continue;
+-			}
+-
+-			if (inode) {
+-                                fprintf(fp, "%lx%s%s%s%s%s%6llx%s%lx %s\n",
+-                                    vma, space(MINSPACE),               
+-                                    mkstring(buf2, UVADDR_PRLEN, RJUST|LONG_HEX,
+-                                        MKSTR(vm_start)), space(MINSPACE),      
+-                                    mkstring(buf3, UVADDR_PRLEN, RJUST|LONG_HEX,
+-                                        MKSTR(vm_end)), space(MINSPACE), 
+-				    vm_flags, space(MINSPACE), inode, buf1);
+-			} else {
+-				PRINT_VMA_DATA();
+-				     
+-				if (flag & (PHYSADDR|PRINT_SINGLE_VMA)) 
+-					vm_area_page_dump(vma, task,
+-						vm_start, vm_end, vm_mm, ref);
+-			}
+-
+-			if (flag & UVADDR)
++		FREEBUF(entry_list);
++	} else {
++		readmem(tm->mm_struct_addr + OFFSET(mm_struct_mmap), KVADDR,
++			&vma, sizeof(void *), "mm_struct mmap", FAULT_ON_ERROR);
++		while (vma) {
++			args.vma = vma;
++			if (handle_each_vm_area(&args))
+ 				return vma;
+-		} 
++			vma = ULONG(vma_buf + OFFSET(vm_area_struct_vm_next));
++		}
+ 	}
+ 
+ 	if (flag & VERIFY_ADDR)
+-- 
+2.37.1
+

0069-Update-the-help-text-of-tree-command-for-maple-tree.patch

@@ -0,0 +1,135 @@
+From a3dbd5c455992baf6bfc196b9059a2b485823b83 Mon Sep 17 00:00:00 2001
+From: Tao Liu <ltao@redhat.com>
+Date: Tue, 10 Jan 2023 14:56:31 +0800
+Subject: [PATCH 69/89] Update the help text of "tree" command for maple tree
+
+Signed-off-by: Tao Liu <ltao@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ help.c | 86 +++++++++++++++++++++++++++++++++++++++++++---------------
+ 1 file changed, 64 insertions(+), 22 deletions(-)
+
+diff --git a/help.c b/help.c
+index bfba43f6e9fd..7ceefa06732b 100644
+--- a/help.c
++++ b/help.c
+@@ -6313,19 +6313,20 @@ NULL
+ 
+ char *help_tree[] = {
+ "tree",
+-"display radix tree, XArray or red-black tree",
+-"[-t [radix|xarray|rbtree]] [-r offset] [-[s|S] struct[.member[,member]]]\n       -[x|d] [-o offset] [-l] [-p] [-N] start",
+-"  This command dumps the contents of a radix tree, an XAarray, or a red-black",
+-"  tree.  The arguments are as follows:\n",
++"display radix tree, XArray, red-black tree or maple tree",
++"[-t [radix|xarray|rbtree|maple]] [-r offset] [-[s|S] struct[.member[,member]]]\n"
++"       -[x|d] [-o offset] [-l] [-p] [-v] [-N] start",
++"  This command dumps the contents of a radix tree, an XAarray, a red-black",
++"  tree, or a maple tree.  The arguments are as follows:\n",
+ "    -t type  The type of tree to dump; the type string can be one of ",
+-"             \"radix\", \"rbtree\", or \"xarray\", or alternatively, \"ra\",",
+-"             \"rb\" or \"x\" are acceptable.  If not specified, rbtree is the",
+-"             default type.",
++"             \"radix\", \"rbtree\", \"xarray\", or \"maple\", or alternatively,",
++"             \"ra\", \"rb\", \"x\" or \"m\" are acceptable. If not specified,",
++"             rbtree is the default type.",
+ "  -r offset  If the \"start\" argument is the address of a data structure that",
+-"             contains an radix_tree_root, xarray or rb_root structure, then this", 
+-"             is the offset to that structure member.  If the offset is non-zero,",
+-"             then this option is required.  The offset may be entered in either",
+-"             of two manners:",
++"             contains an radix_tree_root, maple_tree, xarray or rb_root",
++"             structure, then this is the offset to that structure member. If",
++"             the offset is non-zero, then this option is required.  The offset",
++"             may be entered in either of two manners:",
+ "               1. In \"structure.member\" format.",
+ "               2. A number of bytes.",
+ "  -o offset  For red-black trees only, the offset of the rb_node within its ",
+@@ -6354,25 +6355,26 @@ char *help_tree[] = {
+ "         -p  Display the node's position information, showing the relationship",
+ "             between it and the root.  For red-black trees, a position that",
+ "             indicates \"root/l/r\" means that the node is the right child",
+-"             of the left child of the root node.  For radix trees and xarrays,",
+-"             the index, the height, and the slot index values are shown with",
+-"             respect to the root.",
++"             of the left child of the root node.  For radix trees, xarrays and",
++"             maple trees, the index, the height, and the slot index values are",
++"             shown with respect to the root.",
+ "         -x  Override default output format with hexadecimal format.",
+ "         -d  Override default output format with decimal format.",
++"         -v  For maple trees only, dump the contents of each maple tree node.",
+ " ",
+ "  The meaning of the \"start\" argument, which can be expressed either in",
+ "  hexadecimal format or symbolically, depends upon whether the -N option",
+ "  is prepended:",
+ " ",
+-"      start  The address of a radix_tree_root, xarray or rb_root structure, or",
+-"             the address of a structure containing the radix_tree_root, xarray",
+-"             or rb_root structure; if the latter, then the \"-r offset\" option",
+-"             must be used if the member offset of the root structure is ",
+-"             non-zero.",
++"      start  The address of a radix_tree_root, maple_tree, xarray or rb_root",
++"             structure, or the address of a structure containing the",
++"             radix_tree_root, maple_tree, xarray or rb_root structure; if the",
++"             latter, then the \"-r offset\" option must be used if the member",
++"             offset of the root structure is non-zero.",
+ "               ",
+-"   -N start  The address of a radix_tree_node, xa_node or rb_node structure,",
+-"             bypassing the radix_tree_root, xarray, or rb_root that points",
+-"             to it.",
++"   -N start  The address of a radix_tree_node, maple_node, xa_node or rb_node",
++"             structure, bypassing the radix_tree_root, maple_tree, xarray, or",
++"             rb_root that points to it.",
+ "",
+ "\nEXAMPLES",
+ "  The vmap_area_root is a standalone rb_root structure.  Display the ",
+@@ -6709,6 +6711,46 @@ char *help_tree[] = {
+ "      _refcount = {",
+ "        counter = 0x1",
+ "      }",
++"",
++"  The -v option is introduced specifically for dumping the complete content of",
++"  maple tree:",
++"",
++"    %s> tree -t maple 0xffff9034c006aec0 -v",
++"",
++"    maple_tree(ffff9034c006aec0) flags 309, height 2 root 0xffff9034de70041e",
++"",
++"    0-18446744073709551615: node 0xffff9034de700400 depth 0 type 3 parent ...",
++"      0-140112331583487: node 0xffff9034c01e8800 depth 1 type 1 parent ...",
++"        0-94643156942847: 0x0",
++"        94643156942848-94643158024191: 0xffff9035131754c0",
++"        94643158024192-94643160117247: 0x0",
++"        ...",
++"",
++"  The existing options can work as well for maple tree:",
++"",
++"    %s> tree -t maple -r mm_struct.mm_mt 0xffff9034c006aec0 -p",
++"    ffff9035131754c0",
++"      index: 1  position: root/0/1",
++"    ffff9035131751c8",
++"      index: 2  position: root/0/3",
++"    ffff9035131757b8",
++"      index: 3  position: root/0/4",
++"    ...",
++"",
++"    %s> tree -t maple 0xffff9034c006aec0 -p -x -s vm_area_struct.vm_start,vm_end",
++"    ffff9035131754c0",
++"      index: 1  position: root/0/1",
++"      vm_start = 0x5613d3c00000,",
++"      vm_end = 0x5613d3d08000,",
++"    ffff9035131751c8",
++"      index: 2  position: root/0/3",
++"      vm_start = 0x5613d3f07000,",
++"      vm_end = 0x5613d3f0b000,",
++"    ffff9035131757b8",
++"      index: 3  position: root/0/4",
++"      vm_start = 0x5613d3f0b000,",
++"      vm_end = 0x5613d3f14000,",
++"    ....",
+ NULL
+ };
+ 
+-- 
+2.37.1
+

0070-Dump-maple-tree-offset-variables-by-help-o.patch

@@ -0,0 +1,52 @@
+From 198ce92c480baa71e3c70694b7049432f8a5a6ec Mon Sep 17 00:00:00 2001
+From: Tao Liu <ltao@redhat.com>
+Date: Tue, 10 Jan 2023 14:56:32 +0800
+Subject: [PATCH 70/89] Dump maple tree offset variables by "help -o"
+
+In the previous patches, some variables are added to offset_table and
+size_table, print them out with "help -o" command.
+
+Signed-off-by: Tao Liu <ltao@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ symbols.c | 17 +++++++++++++++++
+ 1 file changed, 17 insertions(+)
+
+diff --git a/symbols.c b/symbols.c
+index 9e6fca73eaf9..20bfac35c1f6 100644
+--- a/symbols.c
++++ b/symbols.c
+@@ -10778,6 +10778,21 @@ dump_offset_table(char *spec, ulong makestruct)
+ 		OFFSET(sbq_wait_state_wait_cnt));
+ 	fprintf(fp, "           sbq_wait_state_wait: %ld\n",
+ 		OFFSET(sbq_wait_state_wait));
++	fprintf(fp, "               mm_struct_mm_mt: %ld\n", OFFSET(mm_struct_mm_mt));
++	fprintf(fp, "            maple_tree_ma_root: %ld\n", OFFSET(maple_tree_ma_root));
++	fprintf(fp, "           maple_tree_ma_flags: %ld\n", OFFSET(maple_tree_ma_flags));
++	fprintf(fp, "             maple_node_parent: %ld\n", OFFSET(maple_node_parent));
++	fprintf(fp, "               maple_node_ma64: %ld\n", OFFSET(maple_node_ma64));
++	fprintf(fp, "               maple_node_mr64: %ld\n", OFFSET(maple_node_mr64));
++	fprintf(fp, "               maple_node_slot: %ld\n", OFFSET(maple_node_slot));
++	fprintf(fp, "         maple_arange_64_pivot: %ld\n", OFFSET(maple_arange_64_pivot));
++	fprintf(fp, "          maple_arange_64_slot: %ld\n", OFFSET(maple_arange_64_slot));
++	fprintf(fp, "           maple_arange_64_gap: %ld\n", OFFSET(maple_arange_64_gap));
++	fprintf(fp, "          maple_arange_64_meta: %ld\n", OFFSET(maple_arange_64_meta));
++	fprintf(fp, "          maple_range_64_pivot: %ld\n", OFFSET(maple_range_64_pivot));
++	fprintf(fp, "           maple_range_64_slot: %ld\n", OFFSET(maple_range_64_slot));
++	fprintf(fp, "            maple_metadata_end: %ld\n", OFFSET(maple_metadata_end));
++	fprintf(fp, "            maple_metadata_gap: %ld\n", OFFSET(maple_metadata_gap));
+ 
+ 	fprintf(fp, "\n                    size_table:\n");
+ 	fprintf(fp, "                          page: %ld\n", SIZE(page));
+@@ -11050,6 +11065,8 @@ dump_offset_table(char *spec, ulong makestruct)
+ 	fprintf(fp, "                 sbitmap_queue: %ld\n", SIZE(sbitmap_queue));
+ 	fprintf(fp, "                sbq_wait_state: %ld\n", SIZE(sbq_wait_state));
+ 	fprintf(fp, "                   blk_mq_tags: %ld\n", SIZE(blk_mq_tags));
++	fprintf(fp, "                    maple_tree: %ld\n", SIZE(maple_tree));
++	fprintf(fp, "                    maple_node: %ld\n", SIZE(maple_node));
+ 
+ 	fprintf(fp, "                percpu_counter: %ld\n", SIZE(percpu_counter));
+ 
+-- 
+2.37.1
+

0071-Fix-for-bt-command-printing-bogus-exception-frame-wa.patch

@@ -0,0 +1,80 @@
+From a39b03603eba70d630121390f50abbc186bc8f56 Mon Sep 17 00:00:00 2001
+From: Lianbo Jiang <lijiang@redhat.com>
+Date: Mon, 13 Feb 2023 11:12:12 +0800
+Subject: [PATCH 71/89] Fix for "bt" command printing "bogus exception frame"
+ warning
+
+Currently, the "bt" command may print a bogus exception frame
+and the remaining frame will be truncated on x86_64 when using the
+"virsh send-key <kvm guest> KEY_LEFTALT KEY_SYSRQ KEY_C" command
+to trigger a panic from the KVM host. For example:
+
+  crash> bt
+  PID: 0        TASK: ffff9e7a47e32f00  CPU: 3    COMMAND: "swapper/3"
+   #0 [ffffba7900118bb8] machine_kexec at ffffffff87e5c2c7
+   #1 [ffffba7900118c08] __crash_kexec at ffffffff87f9500d
+   #2 [ffffba7900118cd0] panic at ffffffff87edfff9
+   #3 [ffffba7900118d50] sysrq_handle_crash at ffffffff883ce2c1
+   ...
+   #16 [ffffba7900118fd8] handle_edge_irq at ffffffff87f559f2
+   #17 [ffffba7900118ff0] asm_call_on_stack at ffffffff88800fa2
+   --- <IRQ stack> ---
+   #18 [ffffba790008bda0] asm_call_on_stack at ffffffff88800fa2
+       RIP: ffffffffffffffff  RSP: 0000000000000124  RFLAGS: 00000003
+       RAX: 0000000000000000  RBX: 0000000000000001  RCX: 0000000000000000
+       RDX: ffffffff88800c1e  RSI: 0000000000000000  RDI: 0000000000000000
+       RBP: 0000000000000001   R8: 0000000000000000   R9: 0000000000000000
+       R10: 0000000000000000  R11: ffffffff88760555  R12: ffffba790008be08
+       R13: ffffffff87f18002  R14: ffff9e7a47e32f00  R15: ffff9e7bb6198e00
+       ORIG_RAX: 0000000000000000  CS: 0003  SS: 0000
+  bt: WARNING: possibly bogus exception frame
+  crash>
+
+The following related kernel commits cause the current issue, crash
+needs to adjust the value of irq_eframe_link.
+
+Related kernel commits:
+[1] v5.8: 931b94145981 ("x86/entry: Provide helpers for executing on the irqstack")
+[2] v5.8: fa5e5c409213 ("x86/entry: Use idtentry for interrupts")
+[3] v5.12: 52d743f3b712 ("x86/softirq: Remove indirection in do_softirq_own_stack()")
+
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+---
+ x86_64.c | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+diff --git a/x86_64.c b/x86_64.c
+index 1113a1055f77..27b1167ec630 100644
+--- a/x86_64.c
++++ b/x86_64.c
+@@ -3935,6 +3935,11 @@ in_exception_stack:
+         if (irq_eframe) {
+                 bt->flags |= BT_EXCEPTION_FRAME;
+                 i = (irq_eframe - bt->stackbase)/sizeof(ulong);
++                if (symbol_exists("asm_common_interrupt")) {
++			i -= 1;
++			up = (ulong *)(&bt->stackbuf[i*sizeof(ulong)]);
++			bt->instptr = *up;
++                }
+                 x86_64_print_stack_entry(bt, ofp, level, i, bt->instptr);
+                 bt->flags &= ~(ulonglong)BT_EXCEPTION_FRAME;
+                 cs = x86_64_exception_frame(EFRAME_PRINT|EFRAME_CS, 0, 
+@@ -6513,6 +6518,14 @@ x86_64_irq_eframe_link_init(void)
+ 	else
+ 		return; 
+ 
++	if (symbol_exists("asm_common_interrupt")) {
++		if (symbol_exists("asm_call_on_stack"))
++			machdep->machspec->irq_eframe_link = -64;
++		else
++			machdep->machspec->irq_eframe_link = -32;
++		return;
++	}
++
+ 	if (THIS_KERNEL_VERSION < LINUX(2,6,9)) 
+ 		return;
+ 
+-- 
+2.37.1
+

0072-Fix-kmem-s-S-not-working-properly-on-RHEL8.6-and-lat.patch

@@ -0,0 +1,144 @@
+From 3c9c16c545319958d7fa14ef5ab8934fc5449d83 Mon Sep 17 00:00:00 2001
+From: "Aureau, Georges (Kernel Tools ERT)" <georges.aureau@hpe.com>
+Date: Wed, 8 Feb 2023 12:09:03 +0000
+Subject: [PATCH 72/89] Fix "kmem -s|-S" not working properly on RHEL8.6 and
+ later
+
+For CONFIG_SLAB_FREELIST_HARDENED, the crash memory.c:freelist_ptr()
+code is checking for an additional bswap using a simple release test eg.
+THIS_KERNEL_VERSION >= LINUX(5,7,0), basically checking for RHEL9 and
+beyond.
+
+However, for RHEL8.6 and later, we have CONFIG_SLAB_FREELIST_HARDENED=y,
+and we also have the additional bswap, but the current crash is not
+handling this case, hence "kmem -s|-S" will not work properly, and free
+objects will not be counted nor reported properly.
+
+An example from a RHEL8.6 x86_64 kdump, a kmem cache with a single slab
+having 42 objects, only the freelist head is seen as free as crash can't
+walk freelist next pointers, and crash is wrongly reporting 41 allocated
+objects:
+
+  crash> sys | grep RELEASE
+       RELEASE: 4.18.0-372.9.1.el8.x86_64
+  crash> kmem -s nfs_commit_data
+  CACHE             OBJSIZE  ALLOCATED     TOTAL  SLABS  SSIZE  NAME
+  ffff9ad40c7cb2c0      728         41        42      1    32k  nfs_commit_data
+
+When properly accounting for the additional bswap, we can walk the
+freelist and find 38 free objects, and crash is now reporting only 4
+allocated objects:
+
+  crash> kmem -s nfs_commit_data
+  CACHE             OBJSIZE  ALLOCATED     TOTAL  SLABS  SSIZE  NAME
+  ffff9ad40c7cb2c0      728          4        42      1    32k  nfs_commit_data
+
+Signed-off-by: Georges Aureau <georges.aureau@hpe.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ defs.h   |  1 +
+ memory.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++-
+ 2 files changed, 49 insertions(+), 1 deletion(-)
+
+diff --git a/defs.h b/defs.h
+index b2389cd82fae..ae5d1244e8b3 100644
+--- a/defs.h
++++ b/defs.h
+@@ -2638,6 +2638,7 @@ struct vm_table {                /* kernel VM-related data */
+ #define SLAB_OVERLOAD_PAGE    (0x8000000)
+ #define SLAB_CPU_CACHE       (0x10000000)
+ #define SLAB_ROOT_CACHES     (0x20000000)
++#define FREELIST_PTR_BSWAP   (0x40000000)
+ 
+ #define IS_FLATMEM()		(vt->flags & FLATMEM)
+ #define IS_DISCONTIGMEM()	(vt->flags & DISCONTIGMEM)
+diff --git a/memory.c b/memory.c
+index 5141fbea4b40..e0742c1bd3a4 100644
+--- a/memory.c
++++ b/memory.c
+@@ -320,6 +320,7 @@ static void dump_per_cpu_offsets(void);
+ static void dump_page_flags(ulonglong);
+ static ulong kmem_cache_nodelists(ulong);
+ static void dump_hstates(void);
++static void freelist_ptr_init(void);
+ static ulong freelist_ptr(struct meminfo *, ulong, ulong);
+ static ulong handle_each_vm_area(struct handle_each_vm_area_args *);
+ 
+@@ -789,6 +790,8 @@ vm_init(void)
+ 		MEMBER_OFFSET_INIT(kmem_cache_name, "kmem_cache", "name");
+ 		MEMBER_OFFSET_INIT(kmem_cache_flags, "kmem_cache", "flags");
+ 		MEMBER_OFFSET_INIT(kmem_cache_random, "kmem_cache", "random");
++		if (VALID_MEMBER(kmem_cache_random))
++			freelist_ptr_init();
+ 		MEMBER_OFFSET_INIT(kmem_cache_cpu_freelist, "kmem_cache_cpu", "freelist");
+ 		MEMBER_OFFSET_INIT(kmem_cache_cpu_page, "kmem_cache_cpu", "page");
+ 		if (INVALID_MEMBER(kmem_cache_cpu_page))
+@@ -13932,6 +13935,8 @@ dump_vm_table(int verbose)
+ 		fprintf(fp, "%sSLAB_CPU_CACHE", others++ ? "|" : "");\
+ 	if (vt->flags & SLAB_ROOT_CACHES)
+ 		fprintf(fp, "%sSLAB_ROOT_CACHES", others++ ? "|" : "");\
++	if (vt->flags & FREELIST_PTR_BSWAP)
++		fprintf(fp, "%sFREELIST_PTR_BSWAP", others++ ? "|" : "");\
+ 	if (vt->flags & USE_VMAP_AREA)
+ 		fprintf(fp, "%sUSE_VMAP_AREA", others++ ? "|" : "");\
+ 	if (vt->flags & CONFIG_NUMA)
+@@ -19519,13 +19524,55 @@ count_free_objects(struct meminfo *si, ulong freelist)
+ 	return c;
+ }
+ 
++/*
++ * With CONFIG_SLAB_FREELIST_HARDENED, freelist_ptr's are crypted with xor's,
++ * and for recent release with an additionnal bswap. Some releases prio to 5.7.0
++ * may be using the additionnal bswap. The only easy and reliable way to tell is
++ * to inspect assembly code (eg. "__slab_free") for a bswap instruction.
++ */
++static int
++freelist_ptr_bswap_x86(void)
++{
++	char buf1[BUFSIZE];
++	char buf2[BUFSIZE];
++	char *arglist[MAXARGS];
++	int found;
++
++	sprintf(buf1, "disassemble __slab_free");
++	open_tmpfile();
++	if (!gdb_pass_through(buf1, pc->tmpfile, GNU_RETURN_ON_ERROR)) {
++		close_tmpfile();
++		return FALSE;
++	}
++	rewind(pc->tmpfile);
++	found = FALSE;
++	while (fgets(buf2, BUFSIZE, pc->tmpfile)) {
++		if (parse_line(buf2, arglist) < 3)
++			continue;
++		if (STREQ(arglist[2], "bswap")) {
++			found = TRUE;
++			break;
++		}
++	}
++	close_tmpfile();
++	return found;
++}
++
++static void
++freelist_ptr_init(void)
++{
++	if (THIS_KERNEL_VERSION >= LINUX(5,7,0) ||
++	    ((machine_type("X86_64") || machine_type("X86")) && freelist_ptr_bswap_x86()))
++		vt->flags |= FREELIST_PTR_BSWAP;
++}
++
+ static ulong
+ freelist_ptr(struct meminfo *si, ulong ptr, ulong ptr_addr)
+ {
+ 	if (VALID_MEMBER(kmem_cache_random)) {
+ 		/* CONFIG_SLAB_FREELIST_HARDENED */
+ 
+-		if (THIS_KERNEL_VERSION >= LINUX(5,7,0))
++		if (vt->flags & FREELIST_PTR_BSWAP)
+ 			ptr_addr = (sizeof(long) == 8) ? bswap_64(ptr_addr)
+ 						       : bswap_32(ptr_addr);
+ 		return (ptr ^ si->random ^ ptr_addr);
+-- 
+2.37.1
+

0073-Fix-for-net-s-option-to-show-IPv6-addresses-on-Linux.patch

@@ -0,0 +1,106 @@
+From 49f689eda0bc3331beb70df17ac4990034460f2b Mon Sep 17 00:00:00 2001
+From: Lianbo Jiang <lijiang@redhat.com>
+Date: Thu, 9 Feb 2023 20:15:46 +0800
+Subject: [PATCH 73/89] Fix for "net -s" option to show IPv6 addresses on Linux
+ 3.13 and later
+
+Currently, the "net -s" option fails to show IPv6 addresses and ports
+for the SOURCE-PORT and DESTINATION-PORT columns on Linux 3.13 and later
+kernels, which have kernel commit efe4208f47f907 ("ipv6: make lookups
+simpler and faster").  For example:
+
+  crash> net -s
+  PID: 305524   TASK: ffff9bc449895580  CPU: 6    COMMAND: "sshd"
+  FD      SOCKET            SOCK       FAMILY:TYPE SOURCE-PORT DESTINATION-PORT
+   3 ffff9bc446e9a680 ffff9bc4455b5940 UNIX:DGRAM
+   4 ffff9bc446e9c600 ffff9bc3b2b24e00 INET6:STREAM
+
+With the patch:
+
+  crash> net -s
+  PID: 305524   TASK: ffff9bc449895580  CPU: 6    COMMAND: "sshd"
+  FD      SOCKET            SOCK       FAMILY:TYPE SOURCE-PORT DESTINATION-PORT
+   3 ffff9bc446e9a680 ffff9bc4455b5940 UNIX:DGRAM
+   4 ffff9bc446e9c600 ffff9bc3b2b24e00 INET6:STREAM xxxx:xx:x:xxxx:xxxx:xxxx:xxxx:xxxx-22 yyyy:yy:y:yyyy:yyyy:yyyy:yyyy:yyyy-44870
+
+Reported-by: Buland Kumar Singh <bsingh@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+---
+ defs.h    |  3 +++
+ net.c     | 20 +++++++++++++++-----
+ symbols.c |  3 +++
+ 3 files changed, 21 insertions(+), 5 deletions(-)
+
+diff --git a/defs.h b/defs.h
+index ae5d1244e8b3..801781749666 100644
+--- a/defs.h
++++ b/defs.h
+@@ -2204,6 +2204,9 @@ struct offset_table {                    /* stash of commonly-used offsets */
+ 	long maple_range_64_slot;
+ 	long maple_metadata_end;
+ 	long maple_metadata_gap;
++	long sock_sk_common;
++	long sock_common_skc_v6_daddr;
++	long sock_common_skc_v6_rcv_saddr;
+ };
+ 
+ struct size_table {         /* stash of commonly-used sizes */
+diff --git a/net.c b/net.c
+index 7c9c8bd9c98d..aa445ab7ee13 100644
+--- a/net.c
++++ b/net.c
+@@ -199,6 +199,9 @@ net_init(void)
+ 			MEMBER_OFFSET_INIT(sock_common_skc_family,
+ 				"sock_common", "skc_family");
+ 			MEMBER_OFFSET_INIT(sock_sk_type, "sock", "sk_type");
++			MEMBER_OFFSET_INIT(sock_sk_common, "sock", "__sk_common");
++			MEMBER_OFFSET_INIT(sock_common_skc_v6_daddr, "sock_common", "skc_v6_daddr");
++			MEMBER_OFFSET_INIT(sock_common_skc_v6_rcv_saddr, "sock_common", "skc_v6_rcv_saddr");
+ 			/*
+ 			 *  struct inet_sock {
+         		 *	struct sock       sk;
+@@ -1104,12 +1107,19 @@ get_sock_info(ulong sock, char *buf)
+ 		break;
+ 
+ 	case SOCK_V2:
+-		if (INVALID_MEMBER(ipv6_pinfo_rcv_saddr) ||
+-		    INVALID_MEMBER(ipv6_pinfo_daddr))
++		if (VALID_MEMBER(ipv6_pinfo_rcv_saddr) &&
++		    VALID_MEMBER(ipv6_pinfo_daddr)) {
++			ipv6_rcv_saddr = ipv6_pinfo + OFFSET(ipv6_pinfo_rcv_saddr);
++			ipv6_daddr = ipv6_pinfo + OFFSET(ipv6_pinfo_daddr);
++		} else if (VALID_MEMBER(sock_sk_common) &&
++			   VALID_MEMBER(sock_common_skc_v6_daddr) &&
++			   VALID_MEMBER(sock_common_skc_v6_rcv_saddr)) {
++			ipv6_rcv_saddr = sock + OFFSET(sock_sk_common) + OFFSET(sock_common_skc_v6_rcv_saddr);
++			ipv6_daddr = sock + OFFSET(sock_sk_common) + OFFSET(sock_common_skc_v6_daddr);
++		} else {
++			sprintf(&buf[strlen(buf)], "%s", "(cannot get IPv6 addresses)");
+ 			break;
+-
+-        	ipv6_rcv_saddr = ipv6_pinfo + OFFSET(ipv6_pinfo_rcv_saddr);
+-		ipv6_daddr = ipv6_pinfo + OFFSET(ipv6_pinfo_daddr);
++		}
+ 
+ 		if (!readmem(ipv6_rcv_saddr, KVADDR, u6_addr16_src, SIZE(in6_addr),
+                     "ipv6_rcv_saddr buffer", QUIET|RETURN_ON_ERROR))
+diff --git a/symbols.c b/symbols.c
+index 20bfac35c1f6..54115d753601 100644
+--- a/symbols.c
++++ b/symbols.c
+@@ -9830,8 +9830,11 @@ dump_offset_table(char *spec, ulong makestruct)
+ 
+         fprintf(fp, "                  sock_sk_type: %ld\n", 
+ 		OFFSET(sock_sk_type));
++	fprintf(fp, "                sock_sk_common: %ld\n", OFFSET(sock_sk_common));
+         fprintf(fp, "        sock_common_skc_family: %ld\n", 
+ 		OFFSET(sock_common_skc_family));
++	fprintf(fp, "      sock_common_skc_v6_daddr: %ld\n", OFFSET(sock_common_skc_v6_daddr));
++	fprintf(fp, "  sock_common_skc_v6_rcv_saddr: %ld\n", OFFSET(sock_common_skc_v6_rcv_saddr));
+ 	fprintf(fp, "        socket_alloc_vfs_inode: %ld\n",
+ 		OFFSET(socket_alloc_vfs_inode));
+         fprintf(fp, "                inet_sock_inet: %ld\n", 
+-- 
+2.37.1
+

0074-Fix-for-kmem-i-option-to-not-print-invalid-values-fo.patch

@@ -0,0 +1,56 @@
+From b13a2f3c2885bc638d1e413ef9e7c59a8ec8f81d Mon Sep 17 00:00:00 2001
+From: Lianbo Jiang <lijiang@redhat.com>
+Date: Tue, 14 Feb 2023 22:37:08 +0800
+Subject: [PATCH 74/89] Fix for "kmem -i" option to not print invalid values
+ for CACHED
+
+The "kmem -i" option may output a bogus statistics for CACHED, which
+might be observed when some extreme situations occur in kernel, such as
+OOM, disk IO errors, etc.
+
+The following result of calculation may be a negative value, refer to
+the dump_kmeminfo():
+  page_cache_size = nr_file_pages - swapper_space_nrpages - buffer_pages;
+
+As a result, the negative value will be converted to unsigned long
+integer, eventually it overflows and is printed as big integers.
+
+  crash> kmem -i
+                   PAGES        TOTAL      PERCENTAGE
+      TOTAL MEM  255314511     973.9 GB         ----
+           FREE   533574         2 GB    0% of TOTAL MEM
+           USED  254780937     971.9 GB   99% of TOTAL MEM
+         SHARED     1713       6.7 MB    0% of TOTAL MEM
+        BUFFERS      374       1.5 MB    0% of TOTAL MEM
+         CACHED     -114  70368744177664 GB  72251060080% of TOTAL MEM
+                    ^^^^  ^^^^^^^^^^^^^^     ^^^^^^^^^^^^
+         ...
+
+Let's normalize it to zero with an info message to fix such cornor cases.
+
+Reported-by: Buland Kumar Singh <bsingh@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+---
+ memory.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/memory.c b/memory.c
+index e0742c1bd3a4..d9cd616f19de 100644
+--- a/memory.c
++++ b/memory.c
+@@ -8615,6 +8615,11 @@ dump_kmeminfo(void)
+ 		page_cache_size = 0;
+ 
+ 
++	if (page_cache_size < 0) {
++		error(INFO, "page_cache_size went negative (%ld), setting to 0\n",
++			page_cache_size);
++		page_cache_size = 0;
++	}
+         pct = (page_cache_size * 100)/totalram_pages;
+         fprintf(fp, "%13s  %7ld  %11s  %3ld%% of TOTAL MEM\n", 
+ 		"CACHED", page_cache_size, 
+-- 
+2.37.1
+

0075-Fix-for-bt-command-unnecessarily-printing-an-excepti.patch

@@ -0,0 +1,78 @@
+From cce90e242f74ab81e411f2f65f5d5a9fb5022416 Mon Sep 17 00:00:00 2001
+From: Lianbo Jiang <lijiang@redhat.com>
+Date: Wed, 15 Feb 2023 16:24:57 +0800
+Subject: [PATCH 75/89] Fix for "bt" command unnecessarily printing an
+ exception frame
+
+Kernel commit 7d65f4a65532 ("irq: Consolidate do_softirq() arch overriden
+implementations") renamed the call_softirq to do_softirq_own_stack, and
+there is no exception frame also when coming from do_softirq_own_stack.
+Without the patch, crash may unnecessarily output an exception frame with
+a warning as below:
+
+  crash> foreach bt
+  ...
+  PID: 0        TASK: ffff914f820a8000  CPU: 25   COMMAND: "swapper/25"
+   #0 [fffffe0000504e48] crash_nmi_callback at ffffffffa665d763
+   #1 [fffffe0000504e50] nmi_handle at ffffffffa662a423
+   #2 [fffffe0000504ea8] default_do_nmi at ffffffffa6fe7dc9
+   #3 [fffffe0000504ec8] do_nmi at ffffffffa662a97f
+   #4 [fffffe0000504ef0] end_repeat_nmi at ffffffffa70015e8
+      [exception RIP: clone_endio+172]
+      RIP: ffffffffc005c1ec  RSP: ffffa1d403d08e98  RFLAGS: 00000246
+      RAX: 0000000000000000  RBX: ffff915326fba230  RCX: 0000000000000018
+      RDX: ffffffffc0075400  RSI: 0000000000000000  RDI: ffff915326fba230
+      RBP: ffff915326fba1c0   R8: 0000000000001000   R9: ffff915308d6d2a0
+      R10: 000000a97dfe5e10  R11: ffffa1d40038fe98  R12: ffff915302babc40
+      R13: ffff914f94360000  R14: 0000000000000000  R15: 0000000000000000
+      ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
+  --- <NMI exception stack> ---
+   #5 [ffffa1d403d08e98] clone_endio at ffffffffc005c1ec [dm_mod]
+   #6 [ffffa1d403d08ed0] blk_update_request at ffffffffa6a96954
+   #7 [ffffa1d403d08f10] scsi_end_request at ffffffffa6c9b968
+   #8 [ffffa1d403d08f48] scsi_io_completion at ffffffffa6c9bb3e
+   #9 [ffffa1d403d08f90] blk_complete_reqs at ffffffffa6aa0e95
+   #10 [ffffa1d403d08fa0] __softirqentry_text_start at ffffffffa72000dc
+   #11 [ffffa1d403d08ff0] do_softirq_own_stack at ffffffffa7000f9a
+  --- <IRQ stack> ---
+   #12 [ffffa1d40038fe70] do_softirq_own_stack at ffffffffa7000f9a
+      [exception RIP: unknown or invalid address]
+      RIP: 0000000000000000  RSP: 0000000000000000  RFLAGS: 00000000
+      RAX: ffffffffa672eae5  RBX: ffffffffa83b34e0  RCX: ffffffffa672eb12
+      RDX: 0000000000000010  RSI: 8b7d6c8869010c00  RDI: 0000000000000085
+      RBP: 0000000000000286   R8: ffff914f820a8000   R9: ffffffffa67a94e0
+      R10: 0000000000000286  R11: ffffffffa66fb4c5  R12: ffffffffa67a898b
+      R13: 0000000000000000  R14: fffffffffffffff8  R15: ffffffffa67a1e68
+      ORIG_RAX: 0000000000000000  CS: 0000  SS: ffffffffa672edff
+   bt: WARNING: possibly bogus exception frame
+   #13 [ffffa1d40038ff30] start_secondary at ffffffffa665fa2c
+   #14 [ffffa1d40038ff50] secondary_startup_64_no_verify at ffffffffa6600116
+   ...
+
+Reported-by: Marco Patalano <mpatalan@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ x86_64.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/x86_64.c b/x86_64.c
+index 27b1167ec630..31c249699066 100644
+--- a/x86_64.c
++++ b/x86_64.c
+@@ -3822,10 +3822,11 @@ in_exception_stack:
+ 		up -= 1;
+                 bt->instptr = *up;
+ 		/*
+-		 *  No exception frame when coming from call_softirq.
++		 *  No exception frame when coming from do_softirq_own_stack
++		 *  or call_softirq.
+ 		 */
+ 		if ((sp = value_search(bt->instptr, &offset)) && 
+-		    STREQ(sp->name, "call_softirq"))
++		    (STREQ(sp->name, "do_softirq_own_stack") || STREQ(sp->name, "call_softirq")))
+ 			irq_eframe = 0;
+                 bt->frameptr = 0;
+                 done = FALSE;
+-- 
+2.37.1
+

0076-Fix-for-dis-command-to-correctly-display-the-offset-.patch

@@ -0,0 +1,63 @@
+From 39a938a62d0153a98ab3d1115d845b904192a832 Mon Sep 17 00:00:00 2001
+From: Lianbo Jiang <lijiang@redhat.com>
+Date: Tue, 21 Feb 2023 11:03:26 +0800
+Subject: [PATCH 76/89] Fix for "dis" command to correctly display the offset
+ of disassembly code
+
+For gdb-10.2, the disassembly code may start with "=>", which needs to
+be stripped when calculating the address. Otherwise, parsing the address
+will fail because the current code always assumes that it starts with the
+"0x". For example:
+
+  crash> gdb disassemble 0xffffffffa2317add
+  Dump of assembler code for function native_queued_spin_lock_slowpath:
+     ...
+     0xffffffffa2317ad3 <+35>:    mov    %edx,%eax
+     0xffffffffa2317ad5 <+37>:    lock cmpxchg %ecx,(%rdi)
+  => 0xffffffffa2317ad9 <+41>:    cmp    %eax,%edx
+     0xffffffffa2317adb <+43>:    jne    0xffffffffa2317ac0 ...
+     0xffffffffa2317add <+45>:    pop    %rbp
+     ...
+
+Without the patch:
+  crash> dis 0xffffffffa2317add -r | tail -5
+  0xffffffffa2317ad3 <native_queued_spin_lock_slowpath+35>:	mov    %edx,%eax
+  0xffffffffa2317ad5 <native_queued_spin_lock_slowpath+37>:	lock cmpxchg %ecx,(%rdi)
+  0xffffffffa2317ad5 <native_queued_spin_lock_slowpath+37>:	cmp    %eax,%edx
+                                                       ^^
+  0xffffffffa2317adb <native_queued_spin_lock_slowpath+43>:	jne    0xffffffffa2317ac0 ...
+  0xffffffffa2317add <native_queued_spin_lock_slowpath+45>:	pop    %rbp
+
+With the patch:
+
+  crash> dis 0xffffffffa2317add -r | tail -5
+  0xffffffffa2317ad3 <native_queued_spin_lock_slowpath+35>:	mov    %edx,%eax
+  0xffffffffa2317ad5 <native_queued_spin_lock_slowpath+37>:	lock cmpxchg %ecx,(%rdi)
+  0xffffffffa2317ad9 <native_queued_spin_lock_slowpath+41>:	cmp    %eax,%edx
+  0xffffffffa2317adb <native_queued_spin_lock_slowpath+43>:	jne    0xffffffffa2317ac0 ...
+  0xffffffffa2317add <native_queued_spin_lock_slowpath+45>:	pop    %rbp
+
+Reported-by: Vernon Lovejoy <vlovejoy@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ kernel.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/kernel.c b/kernel.c
+index 3ca513962970..3f2d9a15a78d 100644
+--- a/kernel.c
++++ b/kernel.c
+@@ -2113,6 +2113,10 @@ cmd_dis(void)
+ 			rewind(pc->tmpfile);
+ 
+ 		while (fgets(buf2, BUFSIZE, pc->tmpfile)) {
++
++			if (STRNEQ(buf2, "=>"))
++				shift_string_left(buf2, 2);
++
+ 			strip_beginning_whitespace(buf2);
+ 
+ 			if (do_load_module_filter)
+-- 
+2.37.1
+

0077-x86_64-Fix-bt-command-on-kernels-with-random_kstack_.patch

@@ -0,0 +1,300 @@
+From 04a84a7071b34958f80633ea7bf96652810dadba Mon Sep 17 00:00:00 2001
+From: Kazuhito Hagio <k-hagio-ab@nec.com>
+Date: Mon, 20 Feb 2023 10:28:53 +0900
+Subject: [PATCH 77/89] x86_64: Fix "bt" command on kernels with
+ random_kstack_offset=on
+
+On kernels configured with CONFIG_RANDOMIZE_KSTACK_OFFSET=y and
+random_kstack_offset=on, a random offset is added to task stacks with
+__kstack_alloca() at the beginning of do_syscall_64() and other syscall
+entry functions.  This eventually does the following instruction.
+
+  <do_syscall_64+32>:  sub    %rax,%rsp
+
+On the other hand, crash uses only a part of data for ORC unwinder to
+unwind stacks and if an ip value doesn't have a usable ORC data, it
+caluculates the frame size with parsing the assembly of the function.
+
+However, crash cannot calculate the frame size correctly with the
+instruction above, and prints stale return addresses like this:
+
+  crash> bt 1
+  PID: 1        TASK: ffff9c250023b880  CPU: 0    COMMAND: "systemd"
+    #0 [ffffb7e5c001fc80] __schedule at ffffffff91ae2b16
+    #1 [ffffb7e5c001fd00] schedule at ffffffff91ae2ed3
+    #2 [ffffb7e5c001fd18] schedule_hrtimeout_range_clock at ffffffff91ae7ed8
+    #3 [ffffb7e5c001fda8] ep_poll at ffffffff913ef828
+    #4 [ffffb7e5c001fe48] do_epoll_wait at ffffffff913ef943
+    #5 [ffffb7e5c001fe80] __x64_sys_epoll_wait at ffffffff913f0130
+    #6 [ffffb7e5c001fed0] do_syscall_64 at ffffffff91ad7169
+    #7 [ffffb7e5c001fef0] do_syscall_64 at ffffffff91ad7179             <<
+    #8 [ffffb7e5c001ff10] syscall_exit_to_user_mode at ffffffff91adaab2 << stale entries
+    #9 [ffffb7e5c001ff20] do_syscall_64 at ffffffff91ad7179             <<
+   #10 [ffffb7e5c001ff50] entry_SYSCALL_64_after_hwframe at ffffffff91c0009b
+       RIP: 00007f258d9427ae  RSP: 00007fffda631d60  RFLAGS: 00000293
+       ...
+
+To fix this, enhance the use of ORC data.  The ORC unwinder often uses
+%rbp value, so keep it from exception frames and inactive task stacks.
+
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ defs.h    |   1 +
+ symbols.c |   1 +
+ x86_64.c  | 118 ++++++++++++++++++++++++++++++++++++++----------------
+ 3 files changed, 85 insertions(+), 35 deletions(-)
+
+diff --git a/defs.h b/defs.h
+index 801781749666..3c6fa3b0d228 100644
+--- a/defs.h
++++ b/defs.h
+@@ -2207,6 +2207,7 @@ struct offset_table {                    /* stash of commonly-used offsets */
+ 	long sock_sk_common;
+ 	long sock_common_skc_v6_daddr;
+ 	long sock_common_skc_v6_rcv_saddr;
++	long inactive_task_frame_bp;
+ };
+ 
+ struct size_table {         /* stash of commonly-used sizes */
+diff --git a/symbols.c b/symbols.c
+index 54115d753601..fc55da678ecd 100644
+--- a/symbols.c
++++ b/symbols.c
+@@ -8834,6 +8834,7 @@ dump_offset_table(char *spec, ulong makestruct)
+ 		OFFSET(task_struct_tss_ksp));
+         fprintf(fp, "        task_struct_thread_eip: %ld\n",
+                 OFFSET(task_struct_thread_eip));
++	fprintf(fp, "        inactive_task_frame_bp: %ld\n", OFFSET(inactive_task_frame_bp));
+ 	fprintf(fp, "  inactive_task_frame_ret_addr: %ld\n",
+ 		OFFSET(inactive_task_frame_ret_addr));
+         fprintf(fp, "        task_struct_thread_esp: %ld\n",
+diff --git a/x86_64.c b/x86_64.c
+index 31c249699066..86abea00c9d6 100644
+--- a/x86_64.c
++++ b/x86_64.c
+@@ -122,7 +122,7 @@ static int x86_64_do_not_cache_framesize(struct syment *, ulong);
+ static int x86_64_framesize_cache_func(int, ulong, int *, int, struct syment *);
+ static ulong x86_64_get_framepointer(struct bt_info *, ulong);
+ int search_for_eframe_target_caller(struct bt_info *, ulong, int *);
+-static int x86_64_get_framesize(struct bt_info *, ulong, ulong);
++static int x86_64_get_framesize(struct bt_info *, ulong, ulong, char *);
+ static void x86_64_framesize_debug(struct bt_info *);
+ static void x86_64_get_active_set(void);
+ static int x86_64_get_kvaddr_ranges(struct vaddr_range *);
+@@ -3639,7 +3639,7 @@ in_exception_stack:
+ 				bt, ofp);
+                         rsp += SIZE(pt_regs);  /* guaranteed kernel mode */
+ 			if (bt->eframe_ip && ((framesize = x86_64_get_framesize(bt, 
+-			    bt->eframe_ip, rsp)) >= 0))
++			    bt->eframe_ip, rsp, NULL)) >= 0))
+ 				rsp += framesize;
+                         level++;
+                         irq_eframe = 0;
+@@ -3671,7 +3671,7 @@ in_exception_stack:
+ 	                case BACKTRACE_ENTRY_DISPLAYED:
+ 	                        level++;
+ 				if ((framesize = x86_64_get_framesize(bt, 
+-				    bt->eframe_ip ?  bt->eframe_ip : *up, rsp)) >= 0) {
++				    bt->eframe_ip ?  bt->eframe_ip : *up, rsp, NULL)) >= 0) {
+ 					rsp += framesize;
+ 					i += framesize/sizeof(ulong);
+ 				}
+@@ -3744,7 +3744,7 @@ in_exception_stack:
+ 			}
+ 
+ 			level++;
+-			if ((framesize = x86_64_get_framesize(bt, bt->instptr, rsp)) >= 0)
++			if ((framesize = x86_64_get_framesize(bt, bt->instptr, rsp, NULL)) >= 0)
+ 				rsp += framesize;
+ 		}
+ 	}
+@@ -3796,7 +3796,7 @@ in_exception_stack:
+                         case BACKTRACE_ENTRY_DISPLAYED:
+                                 level++;
+ 				if ((framesize = x86_64_get_framesize(bt, 
+-				    bt->eframe_ip ? bt->eframe_ip : *up, rsp)) >= 0) {
++				    bt->eframe_ip ? bt->eframe_ip : *up, rsp, NULL)) >= 0) {
+ 					rsp += framesize;
+ 					i += framesize/sizeof(ulong);
+ 				}
+@@ -3906,24 +3906,34 @@ in_exception_stack:
+ 	    (STREQ(rip_symbol, "thread_return") || 
+ 	     STREQ(rip_symbol, "schedule") || 
+ 	     STREQ(rip_symbol, "__schedule"))) {
+-		if (STREQ(rip_symbol, "__schedule")) {
+-			i = (rsp - bt->stackbase)/sizeof(ulong);
+-			x86_64_print_stack_entry(bt, ofp, level, 
+-				i, bt->instptr);
+-			level++;
+-			rsp = __schedule_frame_adjust(rsp, bt);
+-			if (STREQ(closest_symbol(bt->instptr), "schedule"))
++		if ((machdep->flags & ORC) && VALID_MEMBER(inactive_task_frame_ret_addr)) {
++			/*
++			 * %rsp should have the address of inactive_task_frame, so
++			 * skip the registers before ret_addr to adjust rsp.
++			 */
++			if (CRASHDEBUG(1))
++				fprintf(fp, "rsp: %lx rbp: %lx\n", rsp, bt->bptr);
++			rsp += OFFSET(inactive_task_frame_ret_addr);
++		} else {
++			if (STREQ(rip_symbol, "__schedule")) {
++				i = (rsp - bt->stackbase)/sizeof(ulong);
++				x86_64_print_stack_entry(bt, ofp, level,
++					i, bt->instptr);
++				level++;
++				rsp = __schedule_frame_adjust(rsp, bt);
++				if (STREQ(closest_symbol(bt->instptr), "schedule"))
++					bt->flags |= BT_SCHEDULE;
++			} else
+ 				bt->flags |= BT_SCHEDULE;
+-		} else
+-			bt->flags |= BT_SCHEDULE;
+-
+-		if (bt->flags & BT_SCHEDULE) {
+-			i = (rsp - bt->stackbase)/sizeof(ulong);
+-			x86_64_print_stack_entry(bt, ofp, level, 
+-				i, bt->instptr);
+-			bt->flags &= ~(ulonglong)BT_SCHEDULE;
+-			rsp += sizeof(ulong);
+-			level++;
++
++			if (bt->flags & BT_SCHEDULE) {
++				i = (rsp - bt->stackbase)/sizeof(ulong);
++				x86_64_print_stack_entry(bt, ofp, level,
++					i, bt->instptr);
++				bt->flags &= ~(ulonglong)BT_SCHEDULE;
++				rsp += sizeof(ulong);
++				level++;
++			}
+ 		}
+ 	}
+ 
+@@ -3954,7 +3964,7 @@ in_exception_stack:
+ 			irq_eframe = 0;
+ 			bt->flags |= BT_EFRAME_TARGET;
+ 			if (bt->eframe_ip && ((framesize = x86_64_get_framesize(bt, 
+-			    bt->eframe_ip, rsp)) >= 0))
++			    bt->eframe_ip, rsp, NULL)) >= 0))
+ 				rsp += framesize;
+ 			bt->flags &= ~BT_EFRAME_TARGET;
+ 		}
+@@ -4041,7 +4051,7 @@ in_exception_stack:
+ 		case BACKTRACE_ENTRY_DISPLAYED:
+ 			level++;
+ 			if ((framesize = x86_64_get_framesize(bt, 
+-			    bt->eframe_ip ? bt->eframe_ip : *up, rsp)) >= 0) {
++			    bt->eframe_ip ? bt->eframe_ip : *up, rsp, (char *)up)) >= 0) {
+ 				rsp += framesize;
+ 				i += framesize/sizeof(ulong);
+ 			}
+@@ -4752,7 +4762,8 @@ x86_64_exception_frame(ulong flags, ulong kvaddr, char *local,
+ 		bt->instptr = rip;
+ 		bt->stkptr = rsp;
+ 		bt->bptr = rbp;
+-	}
++	} else if (machdep->flags & ORC)
++		bt->bptr = rbp;
+ 
+ 	if (kvaddr)
+ 		FREEBUF(pt_regs_buf);
+@@ -5312,6 +5323,10 @@ x86_64_get_sp(struct bt_info *bt)
+ 			OFFSET(thread_struct_rsp), KVADDR,
+                         &rsp, sizeof(void *),
+                         "thread_struct rsp", FAULT_ON_ERROR);
++		if ((machdep->flags & ORC) && VALID_MEMBER(inactive_task_frame_bp)) {
++			readmem(rsp + OFFSET(inactive_task_frame_bp), KVADDR, &bt->bptr,
++				sizeof(void *), "inactive_task_frame.bp", FAULT_ON_ERROR);
++		}
+                 return rsp;
+         }
+ 
+@@ -6418,6 +6433,9 @@ x86_64_ORC_init(void)
+ 	orc->__stop_orc_unwind = symbol_value("__stop_orc_unwind");
+ 	orc->orc_lookup = symbol_value("orc_lookup");
+ 
++	MEMBER_OFFSET_INIT(inactive_task_frame_bp, "inactive_task_frame", "bp");
++	MEMBER_OFFSET_INIT(inactive_task_frame_ret_addr, "inactive_task_frame", "ret_addr");
++
+ 	machdep->flags |= ORC;
+ }
+ 
+@@ -8480,7 +8498,7 @@ search_for_eframe_target_caller(struct bt_info *bt, ulong stkptr, int *framesize
+ 	(BT_OLD_BACK_TRACE|BT_TEXT_SYMBOLS|BT_TEXT_SYMBOLS_ALL|BT_FRAMESIZE_DISABLE)
+  
+ static int
+-x86_64_get_framesize(struct bt_info *bt, ulong textaddr, ulong rsp)
++x86_64_get_framesize(struct bt_info *bt, ulong textaddr, ulong rsp, char *stack_ptr)
+ {
+ 	int c, framesize, instr, arg, max;
+ 	struct syment *sp;
+@@ -8581,19 +8599,49 @@ x86_64_get_framesize(struct bt_info *bt, ulong textaddr, ulong rsp)
+ 	if ((machdep->flags & ORC) && (korc = orc_find(textaddr))) {
+ 		if (CRASHDEBUG(1)) {
+ 			fprintf(fp, 
+-			    "rsp: %lx textaddr: %lx framesize: %d -> spo: %d bpo: %d spr: %d bpr: %d type: %d %s", 
+-				rsp, textaddr, framesize, korc->sp_offset, korc->bp_offset, 
+-				korc->sp_reg, korc->bp_reg, korc->type,
+-				(korc->type == ORC_TYPE_CALL) && (korc->sp_reg == ORC_REG_SP) ? "" : "(UNUSED)");
++			    "rsp: %lx textaddr: %lx -> spo: %d bpo: %d spr: %d bpr: %d type: %d",
++				rsp, textaddr, korc->sp_offset, korc->bp_offset,
++				korc->sp_reg, korc->bp_reg, korc->type);
+ 			if (MEMBER_EXISTS("orc_entry", "end"))
+ 				fprintf(fp, " end: %d", korc->end);
+ 			fprintf(fp, "\n");
+ 		}
+ 
+-		if ((korc->type == ORC_TYPE_CALL) && (korc->sp_reg == ORC_REG_SP)) {
+-			framesize = (korc->sp_offset - 8);
+-			return (x86_64_framesize_cache_func(FRAMESIZE_ENTER, textaddr, 
+-				&framesize, exception, NULL));
++		if (korc->type == ORC_TYPE_CALL) {
++			ulong prev_sp = 0, prev_bp = 0;
++			framesize = -1;
++
++			if (korc->sp_reg == ORC_REG_SP) {
++				framesize = (korc->sp_offset - 8);
++
++				/* rsp points to a return address, so +8 to use sp_offset */
++				prev_sp = (rsp + 8) + korc->sp_offset;
++				if (CRASHDEBUG(1))
++					fprintf(fp, "rsp: %lx prev_sp: %lx framesize: %d\n",
++							rsp, prev_sp, framesize);
++			} else if ((korc->sp_reg == ORC_REG_BP) && bt->bptr) {
++				prev_sp = bt->bptr + korc->sp_offset;
++				framesize = (prev_sp - (rsp + 8) - 8);
++				if (CRASHDEBUG(1))
++					fprintf(fp, "rsp: %lx rbp: %lx prev_sp: %lx framesize: %d\n",
++							rsp, bt->bptr, prev_sp, framesize);
++			}
++
++			if ((korc->bp_reg == ORC_REG_PREV_SP) && prev_sp) {
++				prev_bp = prev_sp + korc->bp_offset;
++				if (stack_ptr && INSTACK(prev_bp, bt)) {
++					bt->bptr = ULONG(stack_ptr + (prev_bp - rsp));
++					if (CRASHDEBUG(1))
++						fprintf(fp, "rsp: %lx prev_sp: %lx prev_bp: %lx -> %lx\n",
++								rsp, prev_sp, prev_bp, bt->bptr);
++				} else
++					bt->bptr = 0;
++			} else if ((korc->bp_reg != ORC_REG_UNDEFINED))
++				bt->bptr = 0;
++
++			if (framesize >= 0)
++				/* Do not cache this, possibly it may be variable. */
++				return framesize;
+ 		}
+ 	}
+ 
+@@ -8749,7 +8797,7 @@ x86_64_framesize_debug(struct bt_info *bt)
+ 		if (!bt->hp->eip)
+ 			error(INFO, "x86_64_framesize_debug: ignoring command\n");
+ 		else
+-			x86_64_get_framesize(bt, bt->hp->eip, 0);
++			x86_64_get_framesize(bt, bt->hp->eip, 0, NULL);
+ 		break;
+ 
+ 	case -3:
+-- 
+2.37.1
+

0078-Fix-for-search-u-option-failing-in-maple-tree-kernel.patch

@@ -0,0 +1,169 @@
+From dbc45587f2c0024f0bc801a967bed9bd8d9f218c Mon Sep 17 00:00:00 2001
+From: Tao Liu <ltao@redhat.com>
+Date: Wed, 22 Feb 2023 14:32:09 +0800
+Subject: [PATCH 78/89] Fix for "search -u" option failing in maple tree kernel
+
+Kernel with maple tree enabled doesn't have mmap as a member of mm_struct[1],
+so OFFSET(mm_struct_mmap) case needed to be handled differently for
+maple tree kernel.
+
+Before:
+crash> search -u a
+
+search: invalid structure member offset: mm_struct_mmap
+        FILE: memory.c  LINE: 14255  FUNCTION: address_space_start()
+
+[crash] error trace: 549500 => 548fff => 5f1c91 => 5f1c13
+
+  5f1c13: OFFSET_verify.part.36+51
+  5f1c91: OFFSET_verify+49
+  548fff: address_space_start+106
+  549500: cmd_search+855
+
+search: invalid structure member offset: mm_struct_mmap
+        FILE: memory.c  LINE: 14255  FUNCTION: address_space_start()
+
+After:
+crash> search -u a
+7ffea63e6440: a
+
+[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=763ecb035029f500d7e6dc99acd1ad299b7726a1
+
+Signed-off-by: Tao Liu <ltao@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ memory.c | 89 +++++++++++++++++++++++++++++++++++++++++---------------
+ 1 file changed, 65 insertions(+), 24 deletions(-)
+
+diff --git a/memory.c b/memory.c
+index d9cd616f19de..c4a6ecd18004 100644
+--- a/memory.c
++++ b/memory.c
+@@ -14245,14 +14245,28 @@ vaddr_type(ulong vaddr, struct task_context *tc)
+ static int
+ address_space_start(struct task_context *tc, ulong *addr)
+ {
+-        ulong vma;
++	ulong mm_mt, entry_num, i, vma = 0;
+         char *vma_buf;
++	struct list_pair *entry_list;
+ 
+         if (!tc->mm_struct)
+                 return FALSE;
+ 
+-        fill_mm_struct(tc->mm_struct);
+-        vma = ULONG(tt->mm_struct + OFFSET(mm_struct_mmap));
++	if (INVALID_MEMBER(mm_struct_mmap) && VALID_MEMBER(mm_struct_mm_mt)) {
++		mm_mt = tc->mm_struct + OFFSET(mm_struct_mm_mt);
++		entry_num = do_maple_tree(mm_mt, MAPLE_TREE_COUNT, NULL);
++		entry_list = (struct list_pair *)GETBUF(entry_num * sizeof(struct list_pair));
++		do_maple_tree(mm_mt, MAPLE_TREE_GATHER, entry_list);
++		for (i = 0; i < entry_num; i++) {
++			if (!!(vma = (ulong)entry_list[i].value))
++				break;
++		}
++		FREEBUF(entry_list);
++	} else {
++		fill_mm_struct(tc->mm_struct);
++		vma = ULONG(tt->mm_struct + OFFSET(mm_struct_mmap));
++	}
++
+         if (!vma)
+                 return FALSE;
+ 	vma_buf = fill_vma_cache(vma);
+@@ -15491,6 +15505,30 @@ search_physical(struct searchinfo *si)
+ 	FREEBUF(pagebuf);
+ }
+ 
++static bool
++check_vma(ulong vma, ulong vaddr, ulong *vm_next, ulong *nextvaddr)
++{
++	char *vma_buf;
++	ulong vm_start, vm_end;
++
++	vma_buf = fill_vma_cache(vma);
++
++	vm_start = ULONG(vma_buf + OFFSET(vm_area_struct_vm_start));
++	vm_end = ULONG(vma_buf + OFFSET(vm_area_struct_vm_end));
++	if (vm_next)
++		*vm_next = ULONG(vma_buf + OFFSET(vm_area_struct_vm_next));
++
++	if (vaddr <= vm_start) {
++		*nextvaddr = vm_start;
++		return TRUE;
++	}
++
++	if ((vaddr > vm_start) && (vaddr < vm_end)) {
++		*nextvaddr = vaddr;
++		return TRUE;
++	}
++	return FALSE;
++}
+ 
+ /*
+  *  Return the next mapped user virtual address page that comes after 
+@@ -15500,37 +15538,40 @@ static int
+ next_upage(struct task_context *tc, ulong vaddr, ulong *nextvaddr)
+ {
+ 	ulong vma, total_vm;
+-	char *vma_buf;
+-        ulong vm_start, vm_end;
+ 	ulong vm_next;
++	ulong mm_mt, entry_num, i;
++	struct list_pair *entry_list;
+ 
+         if (!tc->mm_struct)
+                 return FALSE;
+ 
+-        fill_mm_struct(tc->mm_struct);
+-	vma = ULONG(tt->mm_struct + OFFSET(mm_struct_mmap));
++	fill_mm_struct(tc->mm_struct);
++	vaddr = VIRTPAGEBASE(vaddr) + PAGESIZE();  /* first possible page */
+ 	total_vm = ULONG(tt->mm_struct + OFFSET(mm_struct_total_vm));
+-
+-	if (!vma || (total_vm == 0))
++	if (!total_vm)
+ 		return FALSE;
+ 
+-	vaddr = VIRTPAGEBASE(vaddr) + PAGESIZE();  /* first possible page */
+-
+-        for ( ; vma; vma = vm_next) {
+-                vma_buf = fill_vma_cache(vma);
+-
+-                vm_start = ULONG(vma_buf + OFFSET(vm_area_struct_vm_start));
+-                vm_end = ULONG(vma_buf + OFFSET(vm_area_struct_vm_end));
+-                vm_next = ULONG(vma_buf + OFFSET(vm_area_struct_vm_next));
+-
+-		if (vaddr <= vm_start) {
+-			*nextvaddr = vm_start;
+-			return TRUE;
++	if (INVALID_MEMBER(mm_struct_mmap) && VALID_MEMBER(mm_struct_mm_mt)) {
++		mm_mt = tc->mm_struct + OFFSET(mm_struct_mm_mt);
++		entry_num = do_maple_tree(mm_mt, MAPLE_TREE_COUNT, NULL);
++		entry_list = (struct list_pair *)GETBUF(entry_num * sizeof(struct list_pair));
++		do_maple_tree(mm_mt, MAPLE_TREE_GATHER, entry_list);
++		for (i = 0; i < entry_num; i++) {
++			if (!!(vma = (ulong)entry_list[i].value) &&
++			    check_vma(vma, vaddr, NULL, nextvaddr)) {
++				FREEBUF(entry_list);
++				return TRUE;
++			}
+ 		}
++		FREEBUF(entry_list);
++	} else {
++		vma = ULONG(tt->mm_struct + OFFSET(mm_struct_mmap));
+ 
+-		if ((vaddr > vm_start) && (vaddr < vm_end)) {
+-			*nextvaddr = vaddr;
+-			return TRUE;
++		if (!vma)
++			return FALSE;
++		for ( ; vma; vma = vm_next) {
++			if (check_vma(vma, vaddr, &vm_next, nextvaddr))
++				return TRUE;
+ 		}
+ 	}
+ 
+-- 
+2.37.1
+

0079-Enhance-net-command-to-display-IPv6-address-of-netwo.patch

@@ -0,0 +1,258 @@
+From f4acc0e222aedf720e796fd386f2dc15bbb665e9 Mon Sep 17 00:00:00 2001
+From: Lianbo Jiang <lijiang@redhat.com>
+Date: Tue, 7 Mar 2023 17:14:25 +0800
+Subject: [PATCH 79/89] Enhance "net" command to display IPv6 address of
+ network interface
+
+Currently, the "net" command displays only the IPv4 address of a network
+interface.  Support outputting IPv6 addresses.  For example:
+
+Without the patch:
+  crash> net
+     NET_DEVICE     NAME   IP ADDRESS(ES)
+  ffff8d01b1205000  lo     127.0.0.1
+  ffff8d0087e40000  eno1   192.168.122.2
+
+With the patch:
+  crash> net
+     NET_DEVICE     NAME       IP ADDRESS(ES)
+  ffff8d01b1205000  lo         127.0.0.1, ::1
+  ffff8d0087e40000  eno1       192.168.122.2, xxxx:xx:x:xxxx:xxxx:xxx:xxxx:xxxx, yyyy::yyyy:yyy:yyyy:yyyy
+
+Also align with longer device names.
+
+Related kernel commit:
+502a2ffd7376 ("ipv6: convert idev_list to list macros")
+
+Reported-by: Buland Kumar Singh <bsingh@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+---
+ defs.h    |   6 +++
+ net.c     | 109 +++++++++++++++++++++++++++++++++++++++++++++++++-----
+ symbols.c |   6 +++
+ 3 files changed, 112 insertions(+), 9 deletions(-)
+
+diff --git a/defs.h b/defs.h
+index 3c6fa3b0d228..6cfc21487497 100644
+--- a/defs.h
++++ b/defs.h
+@@ -2208,6 +2208,12 @@ struct offset_table {                    /* stash of commonly-used offsets */
+ 	long sock_common_skc_v6_daddr;
+ 	long sock_common_skc_v6_rcv_saddr;
+ 	long inactive_task_frame_bp;
++	long net_device_ip6_ptr;
++	long inet6_dev_addr_list;
++	long inet6_ifaddr_addr;
++	long inet6_ifaddr_if_list;
++	long inet6_ifaddr_if_next;
++	long in6_addr_in6_u;
+ };
+ 
+ struct size_table {         /* stash of commonly-used sizes */
+diff --git a/net.c b/net.c
+index aa445ab7ee13..987dc8934942 100644
+--- a/net.c
++++ b/net.c
+@@ -71,6 +71,7 @@ static void print_neighbour_q(ulong, int);
+ static void get_netdev_info(ulong, struct devinfo *);
+ static void get_device_name(ulong, char *);
+ static long get_device_address(ulong, char **, long);
++static void get_device_ip6_address(ulong, char **, long);
+ static void get_sock_info(ulong, char *);
+ static void dump_arp(void);
+ static void arp_state_to_flags(unsigned char);
+@@ -114,6 +115,13 @@ net_init(void)
+ 		net->dev_ip_ptr = MEMBER_OFFSET_INIT(net_device_ip_ptr,
+ 			"net_device", "ip_ptr");
+ 		MEMBER_OFFSET_INIT(net_device_dev_list, "net_device", "dev_list");
++		MEMBER_OFFSET_INIT(net_device_ip6_ptr, "net_device", "ip6_ptr");
++		MEMBER_OFFSET_INIT(inet6_dev_addr_list, "inet6_dev", "addr_list");
++		MEMBER_OFFSET_INIT(inet6_ifaddr_addr, "inet6_ifaddr", "addr");
++		MEMBER_OFFSET_INIT(inet6_ifaddr_if_list, "inet6_ifaddr", "if_list");
++		MEMBER_OFFSET_INIT(inet6_ifaddr_if_next, "inet6_ifaddr", "if_next");
++		MEMBER_OFFSET_INIT(in6_addr_in6_u, "in6_addr", "in6_u");
++
+ 		MEMBER_OFFSET_INIT(net_dev_base_head, "net", "dev_base_head");
+ 		ARRAY_LENGTH_INIT(net->net_device_name_index,
+ 			net_device_name, "net_device.name", NULL, sizeof(char));
+@@ -466,7 +474,7 @@ show_net_devices(ulong task)
+ 	buf = GETBUF(buflen);
+ 	flen = MAX(VADDR_PRLEN, strlen(net->netdevice));
+ 
+-	fprintf(fp, "%s  NAME   IP ADDRESS(ES)\n",
++	fprintf(fp, "%s  NAME       IP ADDRESS(ES)\n",
+ 		mkstring(upper_case(net->netdevice, buf), 
+ 			flen, CENTER|LJUST, NULL));
+ 
+@@ -475,9 +483,10 @@ show_net_devices(ulong task)
+                     mkstring(buf, flen, CENTER|RJUST|LONG_HEX, MKSTR(next)));
+ 
+ 		get_device_name(next, buf);
+-		fprintf(fp, "%-6s ", buf);
++		fprintf(fp, "%-10s ", buf);
+ 
+-		buflen = get_device_address(next, &buf, buflen);
++		get_device_address(next, &buf, buflen);
++		get_device_ip6_address(next, &buf, buflen);
+ 		fprintf(fp, "%s\n", buf);
+ 
+         	readmem(next+net->dev_next, KVADDR, &next, 
+@@ -503,7 +512,7 @@ show_net_devices_v2(ulong task)
+ 	buf = GETBUF(buflen);
+ 	flen = MAX(VADDR_PRLEN, strlen(net->netdevice));
+ 
+-	fprintf(fp, "%s  NAME   IP ADDRESS(ES)\n",
++	fprintf(fp, "%s  NAME       IP ADDRESS(ES)\n",
+ 		mkstring(upper_case(net->netdevice, buf), 
+ 			flen, CENTER|LJUST, NULL));
+ 
+@@ -528,9 +537,10 @@ show_net_devices_v2(ulong task)
+ 			MKSTR(ld->list_ptr[i])));
+ 
+ 		get_device_name(ld->list_ptr[i], buf);
+-		fprintf(fp, "%-6s ", buf);
++		fprintf(fp, "%-10s ", buf);
+ 
+-		buflen = get_device_address(ld->list_ptr[i], &buf, buflen);
++		get_device_address(ld->list_ptr[i], &buf, buflen);
++		get_device_ip6_address(ld->list_ptr[i], &buf, buflen);
+ 		fprintf(fp, "%s\n", buf);
+ 	}
+ 	
+@@ -556,7 +566,7 @@ show_net_devices_v3(ulong task)
+ 	buf = GETBUF(buflen);
+ 	flen = MAX(VADDR_PRLEN, strlen(net->netdevice));
+ 
+-	fprintf(fp, "%s  NAME   IP ADDRESS(ES)\n",
++	fprintf(fp, "%s  NAME       IP ADDRESS(ES)\n",
+ 		mkstring(upper_case(net->netdevice, buf), 
+ 			flen, CENTER|LJUST, NULL));
+ 
+@@ -591,9 +601,10 @@ show_net_devices_v3(ulong task)
+ 			MKSTR(ld->list_ptr[i])));
+ 
+ 		get_device_name(ld->list_ptr[i], buf);
+-		fprintf(fp, "%-6s ", buf);
++		fprintf(fp, "%-10s ", buf);
+ 
+-		buflen = get_device_address(ld->list_ptr[i], &buf, buflen);
++		get_device_address(ld->list_ptr[i], &buf, buflen);
++		get_device_ip6_address(ld->list_ptr[i], &buf, buflen);
+ 		fprintf(fp, "%s\n", buf);
+ 	}
+ 	
+@@ -925,6 +936,86 @@ get_device_address(ulong devaddr, char **bufp, long buflen)
+ 	return buflen;
+ }
+ 
++static void
++get_device_ip6_address(ulong devaddr, char **bufp, long buflen)
++{
++	ulong ip6_ptr = 0, pos = 0, bufsize = buflen, addr = 0;
++	struct in6_addr ip6_addr;
++	char *buf;
++	char str[INET6_ADDRSTRLEN] = {0};
++	char buffer[INET6_ADDRSTRLEN + 2] = {0};
++	uint len = 0;
++
++	buf = *bufp;
++	pos = strlen(buf);
++
++	readmem(devaddr + OFFSET(net_device_ip6_ptr), KVADDR,
++		&ip6_ptr, sizeof(ulong), "ip6_ptr", FAULT_ON_ERROR);
++
++	if (!ip6_ptr)
++		return;
++
++	/*
++	 * 502a2ffd7376 ("ipv6: convert idev_list to list macros")
++	 * v2.6.35-rc1~473^2~733
++	 */
++	if (VALID_MEMBER(inet6_ifaddr_if_list)) {
++		struct list_data list_data, *ld;
++		ulong cnt = 0, i;
++
++		ld = &list_data;
++		BZERO(ld, sizeof(struct list_data));
++		ld->flags |= LIST_ALLOCATE;
++		ld->start = ip6_ptr + OFFSET(inet6_dev_addr_list);
++		ld->list_head_offset = OFFSET(inet6_ifaddr_if_list);
++		cnt = do_list(ld);
++
++		for (i = 1; i < cnt; i++) {
++
++			addr = ld->list_ptr[i] + OFFSET(inet6_ifaddr_addr);
++			readmem(addr + OFFSET(in6_addr_in6_u), KVADDR, &ip6_addr,
++				sizeof(struct in6_addr), "in6_addr.in6_u", FAULT_ON_ERROR);
++
++			inet_ntop(AF_INET6, (void*)&ip6_addr, str, INET6_ADDRSTRLEN);
++			sprintf(buffer, "%s%s", pos ? ", " : "", str);
++			len = strlen(buffer);
++			if (pos + len >= bufsize) {
++				RESIZEBUF(*bufp, bufsize, bufsize + buflen);
++				buf = *bufp;
++				BZERO(buf + bufsize, buflen);
++				bufsize += buflen;
++			}
++			BCOPY(buffer, &buf[pos], len);
++			pos += len;
++		}
++
++		FREEBUF(ld->list_ptr);
++		return;
++	}
++
++	readmem(ip6_ptr + OFFSET(inet6_dev_addr_list), KVADDR,
++		&addr, sizeof(void *), "inet6_dev.addr_list", FAULT_ON_ERROR);
++
++	while (addr) {
++		readmem(addr + OFFSET(in6_addr_in6_u), KVADDR, &ip6_addr,
++			sizeof(struct in6_addr), "in6_addr.in6_u", FAULT_ON_ERROR);
++		inet_ntop(AF_INET6, (void*)&ip6_addr, str, INET6_ADDRSTRLEN);
++		sprintf(buffer, "%s%s", pos ? ", " : "", str);
++		len = strlen(buffer);
++
++		if (pos + len >= bufsize) {
++			RESIZEBUF(*bufp, bufsize, bufsize + buflen);
++			buf = *bufp;
++			BZERO(buf + bufsize, buflen);
++			bufsize += buflen;
++		}
++		BCOPY(buffer, &buf[pos], len);
++		pos += len;
++		readmem(addr + OFFSET(inet6_ifaddr_if_next), KVADDR, &addr,
++			sizeof(void *), "inet6_ifaddr.if_next", FAULT_ON_ERROR);
++	}
++}
++
+ /*
+  *  Get the family, type, local and destination address/port pairs.
+  */
+diff --git a/symbols.c b/symbols.c
+index fc55da678ecd..158c95459bec 100644
+--- a/symbols.c
++++ b/symbols.c
+@@ -9799,6 +9799,7 @@ dump_offset_table(char *spec, ulong makestruct)
+         	OFFSET(net_device_addr_len));
+ 	fprintf(fp, "             net_device_ip_ptr: %ld\n",
+         	OFFSET(net_device_ip_ptr));
++	fprintf(fp, "            net_device_ip6_ptr: %ld\n", OFFSET(net_device_ip6_ptr));
+ 	fprintf(fp, "           net_device_dev_list: %ld\n",
+ 		OFFSET(net_device_dev_list));
+ 	fprintf(fp, "             net_dev_base_head: %ld\n",
+@@ -9851,6 +9852,11 @@ dump_offset_table(char *spec, ulong makestruct)
+         fprintf(fp, "                  inet_opt_num: %ld\n", 
+ 		OFFSET(inet_opt_num));
+ 
++	fprintf(fp, "           inet6_dev_addr_list: %ld\n", OFFSET(inet6_dev_addr_list));
++	fprintf(fp, "             inet6_ifaddr_addr: %ld\n", OFFSET(inet6_ifaddr_addr));
++	fprintf(fp, "          inet6_ifaddr_if_list: %ld\n", OFFSET(inet6_ifaddr_if_list));
++	fprintf(fp, "          inet6_ifaddr_if_next: %ld\n", OFFSET(inet6_ifaddr_if_next));
++	fprintf(fp, "                in6_addr_in6_u: %ld\n", OFFSET(in6_addr_in6_u));
+         fprintf(fp, "          ipv6_pinfo_rcv_saddr: %ld\n", 
+ 		OFFSET(ipv6_pinfo_rcv_saddr));
+         fprintf(fp, "              ipv6_pinfo_daddr: %ld\n", 
+-- 
+2.37.1
+

0080-Fix-for-net-n-option-to-properly-deal-with-an-invali.patch

@@ -0,0 +1,44 @@
+From 0f2e551ef1f9bb10b2fef0c3ac27e9d32488cc47 Mon Sep 17 00:00:00 2001
+From: Lianbo Jiang <lijiang@redhat.com>
+Date: Wed, 8 Mar 2023 20:22:02 +0800
+Subject: [PATCH 80/89] Fix for "net -n" option to properly deal with an
+ invalid argument
+
+The help/man page of the "net" command suggests that "-n" option can
+accept two kinds of argument: PID or task_struct pointer.  However,
+the "net -n" command accepts an invalid argument and shows the
+namespace of the current context silently.  For example:
+
+  crash> net -n 1000000000
+     NET_DEVICE     NAME   IP ADDRESS(ES)
+  ffff949dc11d7000  lo     127.0.0.1
+  ffff949dcc01c000  eno49  192.168.122.17
+
+With the patch, emit an error expectedly.
+
+  crash> net -n 1000000000
+  net: invalid task or pid value: 1000000000
+
+Reported-by: Buland Kumar Singh <bsingh@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ net.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/net.c b/net.c
+index 987dc8934942..18c238be346d 100644
+--- a/net.c
++++ b/net.c
+@@ -420,6 +420,9 @@ cmd_net(void)
+ 				case STR_PID:
+ 				case STR_TASK:
+ 					task = tc->task;
++					break;
++				case STR_INVALID:
++					error(FATAL, "invalid task or pid value: %s\n", args[optind]);
+ 				}
+ 			}
+ 			break;
+-- 
+2.37.1
+

0081-Fix-kmem-n-option-to-display-memory-blocks-on-Linux-.patch

@@ -0,0 +1,160 @@
+From b29bd2b531502ca0274ad9c4531417920102fb26 Mon Sep 17 00:00:00 2001
+From: Kazuhito Hagio <k-hagio-ab@nec.com>
+Date: Fri, 10 Mar 2023 02:38:26 +0000
+Subject: [PATCH 81/89] Fix "kmem -n" option to display memory blocks on Linux
+ 6.3-rc1 and later
+
+Kernel commit d2bf38c088e0 ("driver core: remove private pointer from
+struct bus_type") removed the bus_type.p member, and the "kmem -n"
+option fails with the following error before displaying memory block
+information on Linux 6.3-rc1 and later kernels.
+
+  kmem: invalid structure member offset: bus_type_p
+        FILE: memory.c  LINE: 17852  FUNCTION: init_memory_block()
+
+Search bus_kset.list instead for subsys_private of memory subsys.
+
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ defs.h    |  2 ++
+ memory.c  | 63 +++++++++++++++++++++++++++++++++++++++++++++++++------
+ symbols.c |  2 ++
+ 3 files changed, 61 insertions(+), 6 deletions(-)
+
+diff --git a/defs.h b/defs.h
+index 6cfc21487497..9091397a7012 100644
+--- a/defs.h
++++ b/defs.h
+@@ -2214,6 +2214,8 @@ struct offset_table {                    /* stash of commonly-used offsets */
+ 	long inet6_ifaddr_if_list;
+ 	long inet6_ifaddr_if_next;
+ 	long in6_addr_in6_u;
++	long kset_kobj;
++	long subsys_private_subsys;
+ };
+ 
+ struct size_table {         /* stash of commonly-used sizes */
+diff --git a/memory.c b/memory.c
+index c4a6ecd18004..592a5ef49d50 100644
+--- a/memory.c
++++ b/memory.c
+@@ -17822,6 +17822,13 @@ static void
+ init_memory_block_offset(void)
+ {
+ 	MEMBER_OFFSET_INIT(bus_type_p, "bus_type", "p");
++	if (INVALID_MEMBER(bus_type_p)) {
++		MEMBER_OFFSET_INIT(kset_list, "kset", "list");
++		MEMBER_OFFSET_INIT(kset_kobj, "kset", "kobj");
++		MEMBER_OFFSET_INIT(kobject_name, "kobject", "name");
++		MEMBER_OFFSET_INIT(kobject_entry, "kobject", "entry");
++		MEMBER_OFFSET_INIT(subsys_private_subsys, "subsys_private", "subsys");
++	}
+ 	MEMBER_OFFSET_INIT(subsys_private_klist_devices,
+ 				"subsys_private", "klist_devices");
+ 	MEMBER_OFFSET_INIT(klist_k_list, "klist", "k_list");
+@@ -17842,15 +17849,60 @@ init_memory_block_offset(void)
+ }
+ 
+ static void
+-init_memory_block(struct list_data *ld, int *klistcnt, ulong **klistbuf)
++init_memory_block(int *klistcnt, ulong **klistbuf)
+ {
+-	ulong memory_subsys = symbol_value("memory_subsys");
+ 	ulong private, klist, start;
++	struct list_data list_data, *ld;
++
++	ld = &list_data;
++	private = 0;
+ 
+ 	init_memory_block_offset();
+ 
+-	readmem(memory_subsys + OFFSET(bus_type_p), KVADDR, &private,
+-		sizeof(void *), "memory_subsys.private", FAULT_ON_ERROR);
++	/*
++	 * v6.3-rc1
++	 * d2bf38c088e0 driver core: remove private pointer from struct bus_type
++	 */
++	if (INVALID_MEMBER(bus_type_p)) {
++		int i, cnt;
++		char buf[32];
++		ulong bus_kset, list, name;
++
++		BZERO(ld, sizeof(struct list_data));
++
++		get_symbol_data("bus_kset", sizeof(ulong), &bus_kset);
++		readmem(bus_kset + OFFSET(kset_list), KVADDR, &list,
++			sizeof(ulong), "bus_kset.list", FAULT_ON_ERROR);
++
++		ld->flags |= LIST_ALLOCATE;
++		ld->start = list;
++		ld->end = bus_kset + OFFSET(kset_list);
++		ld->list_head_offset = OFFSET(kobject_entry);
++
++		cnt = do_list(ld);
++		for (i = 0; i < cnt; i++) {
++			readmem(ld->list_ptr[i] + OFFSET(kobject_name), KVADDR, &name,
++				sizeof(ulong), "kobject.name", FAULT_ON_ERROR);
++			read_string(name, buf, sizeof(buf)-1);
++			if (CRASHDEBUG(1))
++				fprintf(fp, "kobject: %lx name: %s\n", ld->list_ptr[i], buf);
++			if (STREQ(buf, "memory")) {
++				/* entry is subsys_private.subsys.kobj. See bus_to_subsys(). */
++				private = ld->list_ptr[i] - OFFSET(kset_kobj)
++						- OFFSET(subsys_private_subsys);
++				break;
++			}
++		}
++		FREEBUF(ld->list_ptr);
++	} else {
++		ulong memory_subsys = symbol_value("memory_subsys");
++		readmem(memory_subsys + OFFSET(bus_type_p), KVADDR, &private,
++			sizeof(void *), "memory_subsys.private", FAULT_ON_ERROR);
++	}
++
++	if (!private)
++		error(FATAL, "cannot determine subsys_private for memory.\n");
++
+ 	klist = private + OFFSET(subsys_private_klist_devices) +
+ 					OFFSET(klist_k_list);
+ 	BZERO(ld, sizeof(struct list_data));
+@@ -17875,7 +17927,6 @@ dump_memory_blocks(int initialize)
+ 	ulong memory_block, device;
+ 	ulong *klistbuf;
+ 	int klistcnt, i;
+-	struct list_data list_data;
+ 	char mb_hdr[BUFSIZE];
+ 	char paddr_hdr[BUFSIZE];
+ 	char buf1[BUFSIZE];
+@@ -17892,7 +17943,7 @@ dump_memory_blocks(int initialize)
+ 	if (initialize)
+ 		return;
+ 
+-	init_memory_block(&list_data, &klistcnt, &klistbuf);
++	init_memory_block(&klistcnt, &klistbuf);
+ 
+ 	if ((symbol_exists("memory_block_size_probed")) ||
+ 	    (MEMBER_EXISTS("memory_block", "end_section_nr")))
+diff --git a/symbols.c b/symbols.c
+index 158c95459bec..1d083b876f87 100644
+--- a/symbols.c
++++ b/symbols.c
+@@ -10416,6 +10416,7 @@ dump_offset_table(char *spec, ulong makestruct)
+ 		OFFSET(kobject_entry));
+ 	fprintf(fp, "                     kset_list: %ld\n",
+ 		OFFSET(kset_list));
++	fprintf(fp, "                     kset_kobj: %ld\n", OFFSET(kset_kobj));
+ 	fprintf(fp, "            request_list_count: %ld\n",
+ 		OFFSET(request_list_count));
+ 	fprintf(fp, "             request_cmd_flags: %ld\n",
+@@ -10453,6 +10454,7 @@ dump_offset_table(char *spec, ulong makestruct)
+ 	fprintf(fp, "               blk_mq_tags_rqs: %ld\n",
+ 		OFFSET(blk_mq_tags_rqs));
+ 
++	fprintf(fp, "         subsys_private_subsys: %ld\n", OFFSET(subsys_private_subsys));
+ 	fprintf(fp, "  subsys_private_klist_devices: %ld\n",
+ 		OFFSET(subsys_private_klist_devices));
+ 	fprintf(fp, "                subsystem_kset: %ld\n",
+-- 
+2.37.1
+

0082-xen-fix-stacksize.patch

@@ -0,0 +1,33 @@
+From ba48bd462728515dd3eed562f1a97125e3417ceb Mon Sep 17 00:00:00 2001
+From: Juergen Gross <jgross@suse.com>
+Date: Wed, 15 Mar 2023 12:18:48 +0100
+Subject: [PATCH 82/89] xen: fix stacksize
+
+The size of the percpu stack area of Xen on x86_64 is 8 pages, not 2.
+This is the case since Xen commit 0b630aa340ec in 2007.
+
+While not really critical in its current usage, it should be corrected
+nevertheless.
+
+Signed-off-by: Juergen Gross <jgross@suse.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ x86_64.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/x86_64.c b/x86_64.c
+index 86abea00c9d6..619b9f566613 100644
+--- a/x86_64.c
++++ b/x86_64.c
+@@ -8104,7 +8104,7 @@ x86_64_init_hyper(int when)
+                 machdep->pageshift = ffs(machdep->pagesize) - 1;
+                 machdep->pageoffset = machdep->pagesize - 1;
+                 machdep->pagemask = ~((ulonglong)machdep->pageoffset);
+-		machdep->stacksize = machdep->pagesize * 2;
++		machdep->stacksize = machdep->pagesize * 8;
+                 if ((machdep->pgd = (char *)malloc(PAGESIZE())) == NULL)
+                         error(FATAL, "cannot malloc pgd space.");
+ 		if ((machdep->pud = (char *)malloc(PAGESIZE())) == NULL)
+-- 
+2.37.1
+

0083-xen-get-stack-address-via-stack_base-array-if-availa.patch

@@ -0,0 +1,111 @@
+From 907516256dd60ed20feaa2a8fd9e2bf148099ec3 Mon Sep 17 00:00:00 2001
+From: Juergen Gross <jgross@suse.com>
+Date: Wed, 15 Mar 2023 12:18:49 +0100
+Subject: [PATCH 83/89] xen: get stack address via stack_base array if
+ available
+
+Since many years now the stack address of each percpu stack is
+available via the stack_base[] array (Xen commit 3cb68d2b59ab made
+it visible). Use that instead of the indirect method via the percpu
+variables tss_init or tss_page, especially as the layout of tss_page
+has changed in Xen 4.16 (Xen commit 91d26ed304ff5), resulting in the
+stack no longer to be found.
+
+Signed-off-by: Juergen Gross <jgross@suse.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ xen_hyper.c | 56 ++++++++++++++++++++++++++++++-----------------------
+ 1 file changed, 32 insertions(+), 24 deletions(-)
+
+diff --git a/xen_hyper.c b/xen_hyper.c
+index 1030c0ae25d7..19501de94f4b 100644
+--- a/xen_hyper.c
++++ b/xen_hyper.c
+@@ -324,7 +324,7 @@ void
+ xen_hyper_x86_pcpu_init(void)
+ {
+ 	ulong cpu_info;
+-	ulong init_tss_base, init_tss;
++	ulong init_tss_base, init_tss, stack_base = 0;
+ 	ulong sp;
+ 	struct xen_hyper_pcpu_context *pcc;
+ 	char *buf, *bp;
+@@ -340,34 +340,40 @@ xen_hyper_x86_pcpu_init(void)
+ 	}
+ 	/* get physical cpu context */
+ 	xen_hyper_alloc_pcpu_context_space(XEN_HYPER_MAX_CPUS());
+-	if (symbol_exists("per_cpu__init_tss")) {
++	if (symbol_exists("stack_base")) {
++		stack_base = symbol_value("stack_base");
++		flag = 0;
++	} else if (symbol_exists("per_cpu__init_tss")) {
+ 		init_tss_base = symbol_value("per_cpu__init_tss");
+-		flag = TRUE;
++		flag = 1;
+ 	} else if (symbol_exists("per_cpu__tss_page")) {
+-			init_tss_base = symbol_value("per_cpu__tss_page");
+-			flag = TRUE;
++		init_tss_base = symbol_value("per_cpu__tss_page");
++		flag = 1;
+ 	} else {
+ 		init_tss_base = symbol_value("init_tss");
+-		flag = FALSE;
++		flag = 2;
+ 	}
+-	buf = GETBUF(XEN_HYPER_SIZE(tss));
++	if (flag)
++		buf = GETBUF(XEN_HYPER_SIZE(tss));
+ 	for_cpu_indexes(i, cpuid)
+ 	{
+-		if (flag)
+-			init_tss = xen_hyper_per_cpu(init_tss_base, cpuid);
+-		else
+-			init_tss = init_tss_base +
+-				XEN_HYPER_SIZE(tss) * cpuid;
+-		if (!readmem(init_tss, KVADDR, buf,
+-			XEN_HYPER_SIZE(tss), "init_tss", RETURN_ON_ERROR)) {
+-			error(FATAL, "cannot read init_tss.\n");
+-		}
+-		if (machine_type("X86")) {
+-			sp = ULONG(buf + XEN_HYPER_OFFSET(tss_esp0));
+-		} else if (machine_type("X86_64")) {
+-			sp = ULONG(buf + XEN_HYPER_OFFSET(tss_rsp0));
+-		} else
+-			sp = 0;
++		if (flag) {
++			if (flag == 1)
++				init_tss = xen_hyper_per_cpu(init_tss_base, cpuid);
++			else
++				init_tss = init_tss_base + XEN_HYPER_SIZE(tss) * cpuid;
++			readmem(init_tss, KVADDR, buf,
++				XEN_HYPER_SIZE(tss), "init_tss", FAULT_ON_ERROR);
++			if (machine_type("X86")) {
++				sp = ULONG(buf + XEN_HYPER_OFFSET(tss_esp0));
++			} else if (machine_type("X86_64")) {
++				sp = ULONG(buf + XEN_HYPER_OFFSET(tss_rsp0));
++			} else
++				sp = 0;
++		} else {
++			readmem(stack_base + sizeof(ulong) * cpuid, KVADDR, &sp,
++				sizeof(ulong), "stack_base", FAULT_ON_ERROR);
++		}
+ 		cpu_info = XEN_HYPER_GET_CPU_INFO(sp);
+ 		if (CRASHDEBUG(1)) {
+ 			fprintf(fp, "sp=%lx, cpu_info=%lx\n", sp, cpu_info);
+@@ -377,9 +383,11 @@ xen_hyper_x86_pcpu_init(void)
+ 		}
+ 		pcc = &xhpct->context_array[cpuid];
+ 		xen_hyper_store_pcpu_context(pcc, cpu_info, bp);
+-		xen_hyper_store_pcpu_context_tss(pcc, init_tss, buf);
++		if (flag)
++			xen_hyper_store_pcpu_context_tss(pcc, init_tss, buf);
+ 	}
+-	FREEBUF(buf);
++	if (flag)
++		FREEBUF(buf);
+ }
+ 
+ #elif defined(IA64)
+-- 
+2.37.1
+

0084-xen-adjust-to-new-scheduler-structures.patch

@@ -0,0 +1,178 @@
+From 9e8155297e16f8d8804d151dd75cc489447c1fe7 Mon Sep 17 00:00:00 2001
+From: Juergen Gross <jgross@suse.com>
+Date: Wed, 15 Mar 2023 12:18:50 +0100
+Subject: [PATCH 84/89] xen: adjust to new scheduler structures
+
+There has been a significant modification regarding scheduler data in
+the Xen hypervisor (Xen commit d62fefa4d459). Adapt to new structures
+and removed fields.
+
+Note that this is only the bare minimum to not let crash error out when
+opening a vmcore in Xen mode with a recent Xen version.
+
+Signed-off-by: Juergen Gross <jgross@suse.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ xen_hyper.c             | 63 +++++++++++++++++++++++++++--------------
+ xen_hyper_defs.h        |  4 ++-
+ xen_hyper_dump_tables.c |  4 +++
+ 3 files changed, 49 insertions(+), 22 deletions(-)
+
+diff --git a/xen_hyper.c b/xen_hyper.c
+index 19501de94f4b..dbbfdaa3c154 100644
+--- a/xen_hyper.c
++++ b/xen_hyper.c
+@@ -415,13 +415,21 @@ void
+ xen_hyper_misc_init(void)
+ {
+ 	XEN_HYPER_STRUCT_SIZE_INIT(schedule_data, "schedule_data");
+-	XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_schedule_lock, "schedule_data", "schedule_lock");
+-	XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_curr, "schedule_data", "curr");
+-	if (MEMBER_EXISTS("schedule_data", "idle"))
+-		XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_idle, "schedule_data", "idle");
+-	XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_sched_priv, "schedule_data", "sched_priv");
+-	XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_s_timer, "schedule_data", "s_timer");
+-	XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_tick, "schedule_data", "tick");
++	XEN_HYPER_STRUCT_SIZE_INIT(sched_resource, "sched_resource");
++	if (XEN_HYPER_VALID_SIZE(schedule_data)) {
++		XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_schedule_lock, "schedule_data", "schedule_lock");
++		XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_curr, "schedule_data", "curr");
++		if (MEMBER_EXISTS("schedule_data", "idle"))
++			XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_idle, "schedule_data", "idle");
++		XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_sched_priv, "schedule_data", "sched_priv");
++		XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_s_timer, "schedule_data", "s_timer");
++		XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_tick, "schedule_data", "tick");
++	} else if (XEN_HYPER_VALID_SIZE(sched_resource)) {
++		XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_schedule_lock, "sched_resource", "schedule_lock");
++		XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_curr, "sched_resource", "curr");
++		XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_sched_priv, "sched_resource", "sched_priv");
++		XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_s_timer, "sched_resource", "s_timer");
++	}
+ 
+ 	XEN_HYPER_STRUCT_SIZE_INIT(scheduler, "scheduler");
+ 	XEN_HYPER_MEMBER_OFFSET_INIT(scheduler_name, "scheduler", "name");
+@@ -465,6 +473,7 @@ xen_hyper_schedule_init(void)
+ 	long *schedulers_buf;
+ 	int nr_schedulers;
+ 	struct xen_hyper_sched_context *schc;
++	long buf_size;
+ 	char *buf;
+ 	char opt_name_buf[XEN_HYPER_OPT_SCHED_SIZE];
+ 	int i, cpuid, flag;
+@@ -559,28 +568,39 @@ xen_hyper_schedule_init(void)
+ 	}
+ 	BZERO(xhscht->sched_context_array,
+ 		sizeof(struct xen_hyper_sched_context) * XEN_HYPER_MAX_CPUS());
+-	buf = GETBUF(XEN_HYPER_SIZE(schedule_data));	
+-	if (symbol_exists("per_cpu__schedule_data")) {
++	if (symbol_exists("per_cpu__sched_res")) {
++		addr = symbol_value("per_cpu__sched_res");
++		buf_size = XEN_HYPER_SIZE(sched_resource);
++		flag = 0;
++	} else if (symbol_exists("per_cpu__schedule_data")) {
+ 		addr = symbol_value("per_cpu__schedule_data");
+-		flag = TRUE;
++		buf_size = XEN_HYPER_SIZE(schedule_data);
++		flag = 1;
+ 	} else {
+ 		addr = symbol_value("schedule_data");
+-		flag = FALSE;
++		buf_size = XEN_HYPER_SIZE(schedule_data);
++		flag = 2;
+ 	}
++	buf = GETBUF(buf_size);
+ 	for_cpu_indexes(i, cpuid)
+ 	{
+ 		schc = &xhscht->sched_context_array[cpuid];
+ 		if (flag) {
+-			schc->schedule_data =
+-				xen_hyper_per_cpu(addr, i);
++			if (flag == 1) {
++				schc->schedule_data =
++					xen_hyper_per_cpu(addr, i);
++			} else {
++				schc->schedule_data = addr +
++					XEN_HYPER_SIZE(schedule_data) * i;
++			}
++			readmem(schc->schedule_data,
++				KVADDR, buf, XEN_HYPER_SIZE(schedule_data),
++				"schedule_data", FAULT_ON_ERROR);
+ 		} else {
+-			schc->schedule_data = addr +
+-				XEN_HYPER_SIZE(schedule_data) * i;
+-		}
+-		if (!readmem(schc->schedule_data,
+-			KVADDR, buf, XEN_HYPER_SIZE(schedule_data),
+-		"schedule_data", RETURN_ON_ERROR)) {
+-			error(FATAL, "cannot read schedule_data.\n");
++			schc->sched_resource = xen_hyper_per_cpu(addr, i);
++			readmem(schc->sched_resource,
++				KVADDR, buf, XEN_HYPER_SIZE(sched_resource),
++				"sched_resource", FAULT_ON_ERROR);
+ 		}
+ 		schc->cpu_id = cpuid;
+ 		schc->curr = ULONG(buf + XEN_HYPER_OFFSET(schedule_data_curr));
+@@ -1597,7 +1617,8 @@ xen_hyper_store_vcpu_context(struct xen_hyper_vcpu_context *vcc,
+ 	vcc->next_in_list = ULONG(vcp + XEN_HYPER_OFFSET(vcpu_next_in_list));
+ 	if (XEN_HYPER_VALID_MEMBER(vcpu_sleep_tick))
+ 		vcc->sleep_tick = ULONG(vcp + XEN_HYPER_OFFSET(vcpu_sleep_tick));
+-	vcc->sched_priv = ULONG(vcp + XEN_HYPER_OFFSET(vcpu_sched_priv));
++	if (XEN_HYPER_VALID_MEMBER(vcpu_sched_priv))
++		vcc->sched_priv = ULONG(vcp + XEN_HYPER_OFFSET(vcpu_sched_priv));
+ 	vcc->state = INT(vcp + XEN_HYPER_OFFSET(vcpu_runstate) +
+ 		XEN_HYPER_OFFSET(vcpu_runstate_info_state));
+ 	vcc->state_entry_time = ULONGLONG(vcp +
+diff --git a/xen_hyper_defs.h b/xen_hyper_defs.h
+index acf910abe15e..dccc6ebff109 100644
+--- a/xen_hyper_defs.h
++++ b/xen_hyper_defs.h
+@@ -551,6 +551,7 @@ struct xen_hyper_sched_context {
+ 	ulong idle;
+ 	ulong sched_priv;
+ 	ulong tick;
++	ulong sched_resource;
+ };
+ 
+ struct xen_hyper_sched_table {
+@@ -602,6 +603,7 @@ struct xen_hyper_size_table {
+ 	long vcpu;
+ 	long vcpu_runstate_info;
+ 	long xen_crash_xen_regs_t;		/* elf note v2 */
++	long sched_resource;
+ };
+ 
+ struct xen_hyper_offset_table {
+@@ -692,7 +694,7 @@ struct xen_hyper_offset_table {
+ 	/* mm_struct */
+ 	long mm_struct_pgd;
+ #endif
+-	/* schedule_data */
++	/* schedule_data or sched_resource */
+ 	long schedule_data_schedule_lock;
+ 	long schedule_data_curr;
+ 	long schedule_data_idle;
+diff --git a/xen_hyper_dump_tables.c b/xen_hyper_dump_tables.c
+index 0360d25740ac..227ffc4ae4e4 100644
+--- a/xen_hyper_dump_tables.c
++++ b/xen_hyper_dump_tables.c
+@@ -558,6 +558,8 @@ xen_hyper_dump_xen_hyper_sched_table(int verbose)
+ 				flag, (buf, "%d]\n", i));
+ 			XEN_HYPER_PRI(fp, len, "schedule_data: ", buf, flag,
+ 				(buf, "%lx\n", schc->schedule_data));
++			XEN_HYPER_PRI(fp, len, "sched_resource: ", buf, flag,
++				(buf, "%lx\n", schc->sched_resource));
+ 			XEN_HYPER_PRI(fp, len, "curr: ", buf, flag,
+ 				(buf, "%lx\n", schc->curr));
+ 			XEN_HYPER_PRI(fp, len, "idle: ", buf, flag,
+@@ -630,6 +632,8 @@ xen_hyper_dump_xen_hyper_size_table(char *spec, ulong makestruct)
+ 		(buf, "%ld\n", xen_hyper_size_table.note_buf_t));
+ 	XEN_HYPER_PRI(fp, len, "schedule_data: ", buf, flag,
+ 		(buf, "%ld\n", xen_hyper_size_table.schedule_data));
++	XEN_HYPER_PRI(fp, len, "sched_resource: ", buf, flag,
++		(buf, "%ld\n", xen_hyper_size_table.sched_resource));
+ 	XEN_HYPER_PRI(fp, len, "scheduler: ", buf, flag,
+ 		(buf, "%ld\n", xen_hyper_size_table.scheduler));
+ 	XEN_HYPER_PRI(fp, len, "shared_info: ", buf, flag,
+-- 
+2.37.1
+

0085-Fix-vm-M-option-to-properly-deal-with-an-invalid-arg.patch

@@ -0,0 +1,70 @@
+From 1cebb3d75b45fedc734dac8563782a3e6d86f23b Mon Sep 17 00:00:00 2001
+From: Lianbo Jiang <lijiang@redhat.com>
+Date: Thu, 23 Mar 2023 13:18:07 +0800
+Subject: [PATCH 85/89] Fix "vm -M" option to properly deal with an invalid
+ argument
+
+The "vm -M" option can accept an invalid address and print the virtual
+memory data of a task without an error like this:
+
+   crash> vm -M 0xdeadbeef
+   PID: 92960    TASK: ffff99157976cc80  CPU: 0    COMMAND: "crash"
+          MM               PGD          RSS    TOTAL_VM
+   ffff991573bfdf00  ffff9915857f2000  449020k  2427076k
+         VMA           START       END     FLAGS FILE
+   ffff99158718d1c8     400000     4de000 8000071 /home/crash/crash
+   ...
+
+The reasons are
+- htoll() only converts a hexadecimal string to an unsigned long long
+   value and does not evaluate whether it's a valid kernel virtual
+   address or not, and
+- The specified value is used only when the task's mm_struct is NULL.
+
+Also, this behavior is not described enough in its help text, so it's
+confusing for users.
+
+Let's add a check on the converted value regardless of the task's
+mm_struct and add a description of the behavior to its help text.
+
+With the patch:
+   crash> vm -M 0xdeadbeef
+   vm: invalid mm_struct address: 0xdeadbeef
+
+Reported-by: Buland Kumar Singh <bsingh@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+[ kh: rewrote commit message ]
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+---
+ help.c   | 1 +
+ memory.c | 2 ++
+ 2 files changed, 3 insertions(+)
+
+diff --git a/help.c b/help.c
+index 7ceefa06732b..738bbca2e563 100644
+--- a/help.c
++++ b/help.c
+@@ -4701,6 +4701,7 @@ char *help_vm[] = {
+ "                However, if the address can be determined from the kernel stack,",
+ "                it can be entered manually in order to try to resurrect the",
+ "                virtual memory data of the task.",
++"                NOTE: this option is only used when the task's mm_struct is NULL.",
+ "  -R reference  search for references to this number or filename.",
+ "            -m  dump the mm_struct associated with the task.",
+ "            -v  dump all of the vm_area_structs associated with the task.",
+diff --git a/memory.c b/memory.c
+index 592a5ef49d50..0568f18eb9b7 100644
+--- a/memory.c
++++ b/memory.c
+@@ -3559,6 +3559,8 @@ cmd_vm(void)
+ 		case 'M':
+ 			pc->curcmd_private = htoll(optarg, FAULT_ON_ERROR, NULL);
+ 			pc->curcmd_flags |= MM_STRUCT_FORCE;
++			if (!IS_KVADDR(pc->curcmd_private))
++				error(FATAL, "invalid mm_struct address: %s\n", optarg);
+ 			break;
+ 
+ 		case 'f':
+-- 
+2.37.1
+

0086-Fix-fuser-command-to-properly-deal-with-an-invalid-a.patch

@@ -0,0 +1,81 @@
+From a83349d6ce9773f151a7f88e032c259f94a2fbde Mon Sep 17 00:00:00 2001
+From: Lianbo Jiang <lijiang@redhat.com>
+Date: Mon, 10 Apr 2023 11:41:16 +0800
+Subject: [PATCH 86/89] Fix "fuser" command to properly deal with an invalid
+ argument
+
+The man page of the "fuser" command suggests that the argument can be a
+full pathname or inode address. However, the "fuser" command accepts an
+invalid argument and prints a bogus result as below:
+
+  crash> fuser x
+   PID         TASK        COMM             USAGE
+  100507  ffff9914431f4c80  "packagekitd"    fd
+  100508  ffff991574e59980  "gmain"          fd
+  100509  ffff9914431f3300  "gdbus"          fd
+  102020  ffff991574400000  "sshd"           fd
+  102043  ffff991441d19980  "sshd"           fd
+
+The current fuser command has no checking mechanism to determine if an
+argument is valid or not. Let's add it to handle such cases.
+
+With the patch:
+  crash> fuser x
+  fuser: invalid argument: x
+
+In addition, also add a note that fuser does not expect an argument other
+than an inode address and full pathname, and if others are specified, the
+output can be an unexpected result.
+
+Reported-by: Buland Kumar Singh <bsingh@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+---
+ filesys.c | 8 +++++++-
+ help.c    | 4 ++++
+ 2 files changed, 11 insertions(+), 1 deletion(-)
+
+diff --git a/filesys.c b/filesys.c
+index d64b54a9b822..1d0ee7f0b24a 100644
+--- a/filesys.c
++++ b/filesys.c
+@@ -3398,6 +3398,7 @@ cmd_fuser(void)
+ 	char fuser_header[BUFSIZE];
+ 	int doing_fds, doing_mmap, len;
+ 	int fuser_header_printed, lockd_header_printed;
++	ulong spec_addr;
+ 
+         while ((c = getopt(argcnt, args, "")) != EOF) {
+                 switch(c)
+@@ -3421,7 +3422,12 @@ cmd_fuser(void)
+ 
+ 	doing_fds = doing_mmap = 0;
+ 	while (args[optind]) {
+-                spec_string = args[optind];
++		spec_string = args[optind];
++		spec_addr = htol(spec_string, RETURN_ON_ERROR|QUIET, NULL);
++		if ((spec_addr == BADADDR || !IS_KVADDR(spec_addr)) &&
++		    spec_string[0] != '/')
++			error(FATAL, "invalid argument: %s\n", args[optind]);
++
+ 		if (STRNEQ(spec_string, "0x") && hexadecimal(spec_string, 0))
+ 			shift_string_left(spec_string, 2);
+ 		len = strlen(spec_string);
+diff --git a/help.c b/help.c
+index 738bbca2e563..26f0d75b8699 100644
+--- a/help.c
++++ b/help.c
+@@ -7996,6 +7996,10 @@ char *help_fuser[] = {
+ "  listed.\n",
+ "    pathname  the full pathname of the file.",
+ "    inode     the hexadecimal inode address for the file.",
++"",
++"  NOTE: This commmand does not expect arguments other than inode address",
++"  or full pathname.  If others are specified, the command may accept them,",
++"  but an unexpected output can be displayed.",
+ "\nEXAMPLES",
+ "  Display the tasks using file /usr/lib/libkfm.so.2.0.0\n",
+ "    %s> fuser /usr/lib/libkfm.so.2.0.0",
+-- 
+2.37.1
+

0087-Replace-lseek-read-into-pread-for-kcore-and-vmcore-r.patch

@@ -0,0 +1,115 @@
+From a447ef800c93ab5bbde91a1e7751cf13c2e831fb Mon Sep 17 00:00:00 2001
+From: Tao Liu <ltao@redhat.com>
+Date: Thu, 20 Apr 2023 18:25:22 +0800
+Subject: [PATCH 87/89] Replace lseek/read into pread for kcore and vmcore
+ reading
+
+Previously crash uses lseek/read for kcore and vmcore reading, this involves
+2 syscalls. And we can replace them with pread, only 1 syscall is needed for
+kcore/vmcore reading, and we can have a better performance. Please note there
+are plenty of places in crash using lseek/read, this patch doesn't modify all
+of them, just the most commonly used kcore and diskdump vmcore reading.
+
+Signed-off-by: Tao Liu <ltao@redhat.com>
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ diskdump.c | 25 +++++++++++++++++++------
+ netdump.c  | 15 ++++++++++-----
+ 2 files changed, 29 insertions(+), 11 deletions(-)
+
+diff --git a/diskdump.c b/diskdump.c
+index 90e67d7df1db..1f3685cea89e 100644
+--- a/diskdump.c
++++ b/diskdump.c
+@@ -515,16 +515,22 @@ arm_kdump_header_adjust(int header_version)
+ static int
+ read_pd(int fd, off_t offset, page_desc_t *pd)
+ {
+-	const off_t failed = (off_t)-1;
++	int ret;
+ 
+ 	if (FLAT_FORMAT()) {
+ 		if (!read_flattened_format(fd, offset, pd, sizeof(*pd)))
+ 			return READ_ERROR;
+ 	} else {
+-		if (lseek(fd, offset, SEEK_SET) == failed)
++		if (offset < 0) {
++			if (CRASHDEBUG(8))
++				fprintf(fp, "read_pd: invalid offset: %lx\n", offset);
+ 			return SEEK_ERROR;
+-		if (read(fd, pd, sizeof(*pd)) != sizeof(*pd))
++		}
++		if ((ret = pread(fd, pd, sizeof(*pd), offset)) != sizeof(*pd)) {
++			if (ret == -1 && CRASHDEBUG(8))
++				fprintf(fp, "read_pd: pread error: %s\n", strerror(errno));
+ 			return READ_ERROR;
++		}
+ 	}
+ 
+ 	return 0;
+@@ -1125,7 +1131,6 @@ cache_page(physaddr_t paddr)
+ 	off_t seek_offset;
+ 	page_desc_t pd;
+ 	const int block_size = dd->block_size;
+-	const off_t failed = (off_t)-1;
+ 	ulong retlen;
+ #ifdef ZSTD
+ 	static ZSTD_DCtx *dctx = NULL;
+@@ -1190,10 +1195,18 @@ cache_page(physaddr_t paddr)
+ 			return PAGE_INCOMPLETE;
+ 		}
+ 	} else {
+-		if (lseek(dd->dfd, pd.offset, SEEK_SET) == failed)
++		if (pd.offset < 0) {
++			if (CRASHDEBUG(8))
++				fprintf(fp, "read_diskdump/cache_page: invalid offset: %lx\n",
++					pd.offset);
+ 			return SEEK_ERROR;
+-		if (read(dd->dfd, dd->compressed_page, pd.size) != pd.size)
++		}
++		if ((ret = pread(dd->dfd, dd->compressed_page, pd.size, pd.offset)) != pd.size) {
++			if (ret == -1 && CRASHDEBUG(8))
++				fprintf(fp, "read_diskdump/cache_page: pread error: %s\n",
++					strerror(errno));
+ 			return READ_ERROR;
++		}
+ 	}
+ 
+ 	if (pd.flags & DUMP_DH_COMPRESSED_ZLIB) {
+diff --git a/netdump.c b/netdump.c
+index 4ef5807a641b..04a49e5515bb 100644
+--- a/netdump.c
++++ b/netdump.c
+@@ -4336,7 +4336,7 @@ no_nt_prstatus_exists:
+ int
+ read_proc_kcore(int fd, void *bufptr, int cnt, ulong addr, physaddr_t paddr) 
+ {
+-	int i; 
++	int i, ret;
+ 	size_t readcnt;
+ 	ulong kvaddr;
+ 	Elf32_Phdr *lp32;
+@@ -4436,11 +4436,16 @@ read_proc_kcore(int fd, void *bufptr, int cnt, ulong addr, physaddr_t paddr)
+ 	if (offset == UNINITIALIZED)
+ 		return SEEK_ERROR;
+ 
+-        if (lseek(fd, offset, SEEK_SET) != offset)
+-		perror("lseek");
+-
+-	if (read(fd, bufptr, readcnt) != readcnt)
++	if (offset < 0) {
++		if (CRASHDEBUG(8))
++			fprintf(fp, "read_proc_kcore: invalid offset: %lx\n", offset);
++		return SEEK_ERROR;
++	}
++	if ((ret = pread(fd, bufptr, readcnt, offset)) != readcnt) {
++		if (ret == -1 && CRASHDEBUG(8))
++			fprintf(fp, "read_proc_kcore: pread error: %s\n", strerror(errno));
+ 		return READ_ERROR;
++	}
+ 
+ 	return cnt;
+ }
+-- 
+2.37.1
+

0088-Fix-net-command-on-kernel-configured-with-CONFIG_IPV.patch

@@ -0,0 +1,36 @@
+From a1d0ff0e0d113ada3b4baac25c583be7c96b0950 Mon Sep 17 00:00:00 2001
+From: Kazuhito Hagio <k-hagio-ab@nec.com>
+Date: Tue, 25 Apr 2023 09:31:04 +0900
+Subject: [PATCH 88/89] Fix "net" command on kernel configured with
+ CONFIG_IPV6=m
+
+On a kernel configured with CONFIG_IPV6=m, struct inet6_ifaddr is not
+defined in kernel.  Without the patch, the "net" command fails with the
+following error.
+
+  net: invalid structure member offset: inet6_ifaddr_if_next
+       FILE: net.c  LINE: 1017  FUNCTION: get_device_ip6_address()
+
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+---
+ net.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/net.c b/net.c
+index 18c238be346d..31d3f2bf7c2f 100644
+--- a/net.c
++++ b/net.c
+@@ -996,6 +996,9 @@ get_device_ip6_address(ulong devaddr, char **bufp, long buflen)
+ 		return;
+ 	}
+ 
++	if (INVALID_MEMBER(inet6_ifaddr_if_next))
++		return;
++
+ 	readmem(ip6_ptr + OFFSET(inet6_dev_addr_list), KVADDR,
+ 		&addr, sizeof(void *), "inet6_dev.addr_list", FAULT_ON_ERROR);
+ 
+-- 
+2.37.1
+

0089-gdb-7.6-fix-for-whatis-command-causes-crash-coredump.patch

@@ -0,0 +1,38 @@
+From 8986cceb699a27c720b42a9b2456f8e19d5422cd Mon Sep 17 00:00:00 2001
+From: Lianbo Jiang <lijiang@redhat.com>
+Date: Mon, 8 May 2023 17:05:49 +0800
+Subject: [PATCH 89/89] gdb-7.6: fix for whatis command causes crash coredump
+
+8ecb59f85679 ("Print non-Ada unions without crashing")
+* cp-abi.c (value_rtti_type): Check HAVE_CPLUS_STRUCT.
+
+This is a RHEL-Only patch.
+
+Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
+---
+ gdb-7.6.patch | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
+
+diff --git a/gdb-7.6.patch b/gdb-7.6.patch
+index d0becd055666..f25f5f159e50 100644
+--- a/gdb-7.6.patch
++++ b/gdb-7.6.patch
+@@ -2601,3 +2601,15 @@ diff -up gdb-7.6/opcodes/configure.orig gdb-7.6/opcodes/configure
+ 
+    /* If the nearest symbol is too far away, don't print anything symbolic.  */
+ 
++--- gdb-7.6/gdb/cp-abi.c.orig
+++++ gdb-7.6/gdb/cp-abi.c
++@@ -113,7 +113,8 @@ value_rtti_type (struct value *v, int *full,
++   struct type *ret = NULL;
++   volatile struct gdb_exception e;
++
++-  if ((current_cp_abi.rtti_type) == NULL)
+++  if ((current_cp_abi.rtti_type) == NULL ||
+++               !HAVE_CPLUS_STRUCT (check_typedef (value_type (v))))
++     return NULL;
++   TRY_CATCH (e, RETURN_MASK_ERROR)
++     {
+-- 
+2.37.1
+

crash.spec

@@ -4,7 +4,7 @@
 Summary: Kernel analysis utility for live systems, netdump, diskdump, kdump, LKCD or mcore dumpfiles
 Name: crash
 Version: 7.3.2
-Release: 4%{?dist}
+Release: 5%{?dist}
 License: GPLv3
 Group: Development/Debuggers
 Source0: https://github.com/crash-utility/crash/archive/crash-%{version}.tar.gz
@@ -16,53 +16,97 @@ Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-buildroot-%(%{__id_u} -n)
 BuildRequires: ncurses-devel zlib-devel lzo-devel bison snappy-devel wget patch libzstd-devel
 Requires: binutils
 Provides: bundled(gdb) = 7.6
-Patch0: lzo_snappy_zstd.patch
+Patch0: 0001-ppc64-update-the-NR_CPUS-to-8192.patch
-Patch1: rhel8_build.patch
+Patch1: 0002-sbitmapq-remove-struct-and-member-validation-in-sbit.patch
-Patch2: rhel8_freepointer.patch
+Patch2: 0003-sbitmapq-fix-invalid-offset-for-sbitmap_queue_alloc_.patch
-Patch3: 0001-ppc64-update-the-NR_CPUS-to-8192.patch
+Patch3: 0004-sbitmapq-fix-invalid-offset-for-sbitmap_queue_round_.patch
-Patch4: 0002-sbitmapq-remove-struct-and-member-validation-in-sbit.patch
+Patch4: 0005-sbitmapq-fix-invalid-offset-for-sbitmap_word_depth-o.patch
-Patch5: 0003-sbitmapq-fix-invalid-offset-for-sbitmap_queue_alloc_.patch
+Patch5: 0006-bt-x86_64-filter-out-idle-task-stack.patch
-Patch6: 0004-sbitmapq-fix-invalid-offset-for-sbitmap_queue_round_.patch
+Patch6: 0007-bt-arm64-add-support-for-bt-n-idle.patch
-Patch7: 0005-sbitmapq-fix-invalid-offset-for-sbitmap_word_depth-o.patch
+Patch7: 0008-Enhance-dev-d-D-options-to-support-blk-mq-sbitmap.patch
-Patch8: 0007-bt-x86_64-filter-out-idle-task-stack.patch
+Patch8: 0009-Fix-for-dev-d-D-options-to-support-blk-mq-change-on-.patch
-Patch9: 0008-bt-arm64-add-support-for-bt-n-idle.patch
+Patch9: 0010-Doc-update-man-page-for-the-bpf-and-sbitmapq-command.patch
-Patch10: 0010-Enhance-dev-d-D-options-to-support-blk-mq-sbitmap.patch
+Patch10: 0011-sbitmapq-Fix-for-sbitmap_queue-without-ws_active-mem.patch
-Patch11: 0011-Fix-for-dev-d-D-options-to-support-blk-mq-change-on-.patch
+Patch11: 0012-sbitmapq-Fix-for-sbitmap_word-without-cleared-member.patch
-Patch12: 0012-Doc-update-man-page-for-the-bpf-and-sbitmapq-command.patch
+Patch12: 0013-sbitmapq-Fix-for-sbitmap_queue-without-min_shallow_d.patch
-Patch13: 0013-sbitmapq-Fix-for-sbitmap_queue-without-ws_active-mem.patch
+Patch13: 0014-Make-dev-d-D-options-parse-sbitmap-on-Linux-4.18-and.patch
-Patch14: 0014-sbitmapq-Fix-for-sbitmap_word-without-cleared-member.patch
+Patch14: 0015-sbitmapq-Fix-for-kernels-without-struct-wait_queue_h.patch
-Patch15: 0015-sbitmapq-Fix-for-sbitmap_queue-without-min_shallow_d.patch
+Patch15: 0016-sbitmapq-Limit-kernels-without-sbitmap-again.patch
-Patch16: 0016-Make-dev-d-D-options-parse-sbitmap-on-Linux-4.18-and.patch
+Patch16: 0017-Fix-for-dev-command-on-Linux-5.11-and-later.patch
-Patch17: 0017-sbitmapq-Fix-for-kernels-without-struct-wait_queue_h.patch
+Patch17: 0018-Extend-field-length-of-task-attributes.patch
-Patch18: 0018-sbitmapq-Limit-kernels-without-sbitmap-again.patch
+Patch18: 0019-ppc64-fix-bt-for-S-case.patch
-Patch19: 0001-Fix-for-dev-command-on-Linux-5.11-and-later.patch
+Patch19: 0020-ppc64-dynamically-allocate-h-w-interrupt-stack.patch
-Patch20: 0002-Extend-field-length-of-task-attributes.patch
+Patch20: 0021-ppc64-rename-ppc64_paca_init-to-ppc64_paca_percpu_of.patch
-Patch21: 0003-ppc64-fix-bt-for-S-case.patch
+Patch21: 0022-ppc64-handle-backtrace-when-CPU-is-in-an-emergency-s.patch
-Patch22: 0004-ppc64-dynamically-allocate-h-w-interrupt-stack.patch
+Patch22: 0023-ppc64-print-emergency-stacks-info-with-mach-command.patch
-Patch23: 0005-ppc64-rename-ppc64_paca_init-to-ppc64_paca_percpu_of.patch
+Patch23: 0024-ppc64-use-a-variable-for-machdep-machspec.patch
-Patch24: 0006-ppc64-handle-backtrace-when-CPU-is-in-an-emergency-s.patch
+Patch24: 0025-arm64-Fix-for-st-_stext_vmlinux-not-initialized-when.patch
-Patch25: 0007-ppc64-print-emergency-stacks-info-with-mach-command.patch
+Patch25: 0026-Fix-gcc-11-compiler-warnings-on-filesys.c.patch
-Patch26: 0008-ppc64-use-a-variable-for-machdep-machspec.patch
+Patch26: 0027-Fix-gcc-11-compiler-warning-on-symbols.c.patch
-Patch27: 0009-arm64-Fix-for-st-_stext_vmlinux-not-initialized-when.patch
+Patch27: 0028-Fix-gcc-11-compiler-warning-on-makedumpfile.c.patch
-Patch28: 0010-Fix-gcc-11-compiler-warnings-on-filesys.c.patch
+Patch28: 0029-Fix-gcc-11-compiler-warning-on-kvmdump.c.patch
-Patch29: 0011-Fix-gcc-11-compiler-warning-on-symbols.c.patch
+Patch29: 0030-x86_64-Fix-for-AMD-SME-issue.patch
-Patch30: 0012-Fix-gcc-11-compiler-warning-on-makedumpfile.c.patch
+Patch30: 0031-Makefile-Fix-unnecessary-re-patching-with-coreutils-.patch
-Patch31: 0013-Fix-gcc-11-compiler-warning-on-kvmdump.c.patch
+Patch31: 0032-arm64-use-TCR_EL1_T1SZ-to-get-the-correct-info-if-va.patch
-Patch32: 0014-x86_64-Fix-for-AMD-SME-issue.patch
+Patch32: 0033-Fix-task-R-by-adding-end-identifier-for-union-in-tas.patch
-Patch33: 0015-Makefile-Fix-unnecessary-re-patching-with-coreutils-.patch
+Patch33: 0034-Let-gdb-get-kernel-module-symbols-info-from-crash.patch
-Patch34: 0016-arm64-use-TCR_EL1_T1SZ-to-get-the-correct-info-if-va.patch
+Patch34: 0035-x86_64-Correct-the-identifier-when-locating-the-call.patch
-Patch35: 0017-Fix-task-R-by-adding-end-identifier-for-union-in-tas.patch
+Patch35: 0036-Add-debian-ubuntu-vmlinux-location-to-default-search.patch
-Patch36: 0018-Let-gdb-get-kernel-module-symbols-info-from-crash.patch
+Patch36: 0037-Fix-gcc-12-compiler-warnings-on-lkcd_-.c.patch
-Patch37: 0019-x86_64-Correct-the-identifier-when-locating-the-call.patch
+Patch37: 0038-Fix-for-the-invalid-linux_banner-pointer-issue.patch
-Patch38: 0020-Add-debian-ubuntu-vmlinux-location-to-default-search.patch
+Patch38: 0039-Fix-kmem-failing-to-print-task-context-when-address-.patch
-Patch39: 0021-Fix-gcc-12-compiler-warnings-on-lkcd_-.c.patch
+Patch39: 0040-Fix-page-offset-issue-when-converting-physical-to-vi.patch
-Patch40: 0022-Fix-for-the-invalid-linux_banner-pointer-issue.patch
+Patch40: 0041-Let-kmem-print-task-context-with-physical-address.patch
-Patch41: 0023-Fix-kmem-failing-to-print-task-context-when-address-.patch
+Patch41: 0042-ppc64-still-allow-to-move-on-if-the-emergency-stacks.patch
-Patch42: 0024-Fix-page-offset-issue-when-converting-physical-to-vi.patch
+Patch42: 0043-Fix-segmentation-fault-in-page_flags_init_from_pagef.patch
-Patch43: 0025-Let-kmem-print-task-context-with-physical-address.patch
+Patch43: 0044-Fix-for-ps-vm-commands-to-display-correct-MEM-and-RS.patch
-Patch44: 0026-ppc64-still-allow-to-move-on-if-the-emergency-stacks.patch
+Patch44: 0045-ps-Provide-an-option-to-display-no-header-line.patch
-Patch45: 0027-Fix-segmentation-fault-in-page_flags_init_from_pagef.patch
+Patch45: 0046-arm64-fix-backtraces-of-KASAN-kernel-dumpfile-trunca.patch
-Patch46: 0028-Fix-for-ps-vm-commands-to-display-correct-MEM-and-RS.patch
+Patch46: 0047-arm64-handle-vabits_actual-symbol-missing-case.patch
+Patch47: 0048-x86_64-Fix-for-move-of-per-cpu-variables-into-struct.patch
+Patch48: 0049-Fix-for-mm_struct.rss_stat-conversion-into-percpu_co.patch
+Patch49: 0050-Fix-mount-command-to-appropriately-display-the-mount.patch
+Patch50: 0051-Add-RISCV64-framework-code-support.patch
+Patch51: 0052-RISCV64-Make-crash-tool-enter-command-line-and-suppo.patch
+Patch52: 0053-RISCV64-Add-dis-command-support.patch
+Patch53: 0054-RISCV64-Add-irq-command-support.patch
+Patch54: 0055-RISCV64-Add-bt-command-support.patch
+Patch55: 0056-RISCV64-Add-help-r-command-support.patch
+Patch56: 0057-RISCV64-Add-help-m-M-command-support.patch
+Patch57: 0058-RISCV64-Add-mach-command-support.patch
+Patch58: 0059-RISCV64-Add-the-implementation-of-symbol-verify.patch
+Patch59: 0060-SLUB-Fix-for-offset-change-of-struct-slab-members-on.patch
+Patch60: 0061-Fix-for-kmem-i-to-display-correct-SLAB-statistics-on.patch
+Patch61: 0062-Fix-build-failure-due-to-no-EM_RISCV-with-glibc-2.23.patch
+Patch62: 0063-SLAB-Fix-for-kmem-s-S-options-on-Linux-6.1-and-later.patch
+Patch63: 0064-SLAB-Fix-for-kmem-s-S-options-on-Linux-6.2-rc1-and-l.patch
+Patch64: 0065-Port-the-maple-tree-data-structures-and-functions.patch
+Patch65: 0066-Add-maple-tree-support-to-tree-command.patch
+Patch66: 0067-Add-do_maple_tree-for-maple-tree-operations.patch
+Patch67: 0068-Introduce-maple-tree-vma-iteration-to-vm_area_dump.patch
+Patch68: 0069-Update-the-help-text-of-tree-command-for-maple-tree.patch
+Patch69: 0070-Dump-maple-tree-offset-variables-by-help-o.patch
+Patch70: 0071-Fix-for-bt-command-printing-bogus-exception-frame-wa.patch
+Patch71: 0072-Fix-kmem-s-S-not-working-properly-on-RHEL8.6-and-lat.patch
+Patch72: 0073-Fix-for-net-s-option-to-show-IPv6-addresses-on-Linux.patch
+Patch73: 0074-Fix-for-kmem-i-option-to-not-print-invalid-values-fo.patch
+Patch74: 0075-Fix-for-bt-command-unnecessarily-printing-an-excepti.patch
+Patch75: 0076-Fix-for-dis-command-to-correctly-display-the-offset-.patch
+Patch76: 0077-x86_64-Fix-bt-command-on-kernels-with-random_kstack_.patch
+Patch77: 0078-Fix-for-search-u-option-failing-in-maple-tree-kernel.patch
+Patch78: 0079-Enhance-net-command-to-display-IPv6-address-of-netwo.patch
+Patch79: 0080-Fix-for-net-n-option-to-properly-deal-with-an-invali.patch
+Patch80: 0081-Fix-kmem-n-option-to-display-memory-blocks-on-Linux-.patch
+Patch81: 0082-xen-fix-stacksize.patch
+Patch82: 0083-xen-get-stack-address-via-stack_base-array-if-availa.patch
+Patch83: 0084-xen-adjust-to-new-scheduler-structures.patch
+Patch84: 0085-Fix-vm-M-option-to-properly-deal-with-an-invalid-arg.patch
+Patch85: 0086-Fix-fuser-command-to-properly-deal-with-an-invalid-a.patch
+Patch86: 0087-Replace-lseek-read-into-pread-for-kcore-and-vmcore-r.patch
+Patch87: 0088-Fix-net-command-on-kernel-configured-with-CONFIG_IPV.patch
+Patch88: 0089-gdb-7.6-fix-for-whatis-command-causes-crash-coredump.patch
+Patch89: lzo_snappy_zstd.patch
+Patch90: rhel8_build.patch
 
 %description
 The core analysis suite is a self-contained tool that can be used to
@@ -83,9 +127,9 @@ offered by Mission Critical Linux, or the LKCD kernel patch.
 
 %prep
 %setup -n %{name}-%{version} -q
-%patch0 -p1 -b lzo_snappy_zstd.patch
+%patch0 -p1
-%patch1 -p1 -b rhel8_build.patch
+%patch1 -p1
-%patch2 -p1 -b rhel8_freepointer.patch
+%patch2 -p1
 %patch3 -p1
 %patch4 -p1
 %patch5 -p1
@@ -130,6 +174,50 @@ offered by Mission Critical Linux, or the LKCD kernel patch.
 %patch44 -p1
 %patch45 -p1
 %patch46 -p1
+%patch47 -p1
+%patch48 -p1
+%patch49 -p1
+%patch50 -p1
+%patch51 -p1
+%patch52 -p1
+%patch53 -p1
+%patch54 -p1
+%patch55 -p1
+%patch56 -p1
+%patch57 -p1
+%patch58 -p1
+%patch59 -p1
+%patch60 -p1
+%patch61 -p1
+%patch62 -p1
+%patch63 -p1
+%patch64 -p1
+%patch65 -p1
+%patch66 -p1
+%patch67 -p1
+%patch68 -p1
+%patch69 -p1
+%patch70 -p1
+%patch71 -p1
+%patch72 -p1
+%patch73 -p1
+%patch74 -p1
+%patch75 -p1
+%patch76 -p1
+%patch77 -p1
+%patch78 -p1
+%patch79 -p1
+%patch80 -p1
+%patch81 -p1
+%patch82 -p1
+%patch83 -p1
+%patch84 -p1
+%patch85 -p1
+%patch86 -p1
+%patch87 -p1
+%patch88 -p1
+%patch89 -p1
+%patch90 -p1
 
 %build
 cp %{SOURCE1} .
@@ -160,6 +248,10 @@ rm -rf %{buildroot}
 %{_includedir}/*
 
 %changelog
+* Mon May 08 2023 Lianbo Jiang <lijiang@redhat.com> - 7.3.2-5
+- Update to the latest upstream commit 47216437e79a
+- ("Fix "net" command on kernel configured with CONFIG_IPV6=m")
+
 * Mon Nov 21 2022 Lianbo Jiang <lijiang@redhat.com> - 7.3.2-4
 - Fix for commit 2145b2bb79c5, there are different behaviors between gdb-7.6 and gdb-10.2
 

rhel8_freepointer.patch

@@ -1,16 +0,0 @@
---- crash-7.3.2/memory.c.orig
-+++ crash-7.3.2/memory.c
-@@ -19412,9 +19412,8 @@ freelist_ptr(struct meminfo *si, ulong ptr, ulong ptr_addr)
- 	if (VALID_MEMBER(kmem_cache_random)) {
- 		/* CONFIG_SLAB_FREELIST_HARDENED */
- 
--		if (THIS_KERNEL_VERSION >= LINUX(5,7,0))
--			ptr_addr = (sizeof(long) == 8) ? bswap_64(ptr_addr)
--						       : bswap_32(ptr_addr);
-+		ptr_addr = (sizeof(long) == 8) ? bswap_64(ptr_addr)
-+					       : bswap_32(ptr_addr);
- 		return (ptr ^ si->random ^ ptr_addr);
- 	} else
- 		return ptr;
--- 
-fix freepointer issue