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Release: crash-8.0.2-4

Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
This commit is contained in:
Lianbo Jiang 2023-03-10 14:52:49 +08:00
parent 22c47c372b
commit f24b8df61c
14 changed files with 2638 additions and 8 deletions
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80
0029-Fix-for-bt-command-printing-bogus-exception-frame-wa.patch Normal file
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From 92de7c34b1f910abff4d77522f74454ea0263a90 Mon Sep 17 00:00:00 2001
From: Lianbo Jiang <lijiang@redhat.com>
Date: Mon, 13 Feb 2023 11:12:12 +0800
Subject: [PATCH 01/12] 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 7a5d6f050c89..5b671bd97775 100644
--- a/x86_64.c
+++ b/x86_64.c
@@ -3938,6 +3938,11 @@ 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,
@@ -6521,6 +6526,14 @@ 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

143
0030-Fix-kmem-s-S-not-working-properly-on-RHEL8.6-and-lat.patch Normal file
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From 9253b40a0ecb2d365f89f0a5ebc28a01735c1d24 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 02/12] 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>
---
defs.h | 1 +
memory.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 49 insertions(+), 1 deletion(-)
diff --git a/defs.h b/defs.h
index 33a823b7b67c..56d6cf4489c9 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

106
0031-Fix-for-net-s-option-to-show-IPv6-addresses-on-Linux.patch Normal file
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From c64a827e0bcab15e86f8fbacec141c2bf4b776ea Mon Sep 17 00:00:00 2001
From: Lianbo Jiang <lijiang@redhat.com>
Date: Thu, 9 Feb 2023 20:15:46 +0800
Subject: [PATCH 03/12] 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 56d6cf4489c9..ab4f02cc65cf 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 e38df8aad0f5..b702b9665ec1 100644
--- a/symbols.c
+++ b/symbols.c
@@ -9818,8 +9818,11 @@ 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

56
0032-Fix-for-kmem-i-option-to-not-print-invalid-values-fo.patch Normal file
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From 277da34dd5da8c1280d0d0fd7ce50499b31c3a58 Mon Sep 17 00:00:00 2001
From: Lianbo Jiang <lijiang@redhat.com>
Date: Tue, 14 Feb 2023 22:37:08 +0800
Subject: [PATCH 04/12] 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

77
0033-Fix-for-bt-command-unnecessarily-printing-an-excepti.patch Normal file
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From e0e6e4a7ee03b3d00b50a9e4db2f2ea6f7da0da3 Mon Sep 17 00:00:00 2001
From: Lianbo Jiang <lijiang@redhat.com>
Date: Wed, 15 Feb 2023 16:24:57 +0800
Subject: [PATCH 05/12] 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>
---
x86_64.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/x86_64.c b/x86_64.c
index 5b671bd97775..6cac3936b33d 100644
--- a/x86_64.c
+++ b/x86_64.c
@@ -3825,10 +3825,11 @@ 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

62
0034-Fix-for-dis-command-to-correctly-display-the-offset-.patch Normal file
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@ -0,0 +1,62 @@
From 59c19818190dd4b7ae0dc2221586a4ad6f4fe905 Mon Sep 17 00:00:00 2001
From: Lianbo Jiang <lijiang@redhat.com>
Date: Tue, 21 Feb 2023 11:03:26 +0800
Subject: [PATCH 06/12] 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>
---
kernel.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/kernel.c b/kernel.c
index a42e6ad7d78c..6e98f5f6f6b1 100644
--- a/kernel.c
+++ b/kernel.c
@@ -2112,6 +2112,10 @@ 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

299
0035-x86_64-Fix-bt-command-on-kernels-with-random_kstack_.patch Normal file
View File

@ -0,0 +1,299 @@
From daa43fa5324f2dd232ad72df2c6554646868f3b2 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 07/12] 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>
---
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 ab4f02cc65cf..e76af3c78b69 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 b702b9665ec1..a974fc9141a0 100644
--- a/symbols.c
+++ b/symbols.c
@@ -8822,6 +8822,7 @@ 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 6cac3936b33d..8e3eb8957af1 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 *);
@@ -3642,7 +3642,7 @@ 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;
@@ -3674,7 +3674,7 @@ 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);
}
@@ -3747,7 +3747,7 @@ 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;
}
}
@@ -3799,7 +3799,7 @@ 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);
}
@@ -3909,24 +3909,34 @@ 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++;
+ }
}
}
@@ -3957,7 +3967,7 @@ 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;
}
@@ -4044,7 +4054,7 @@ 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);
}
@@ -4755,7 +4765,8 @@ 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);
@@ -5315,6 +5326,10 @@ 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;
}
@@ -6421,6 +6436,9 @@ 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;
}
@@ -8489,7 +8507,7 @@ 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;
@@ -8590,19 +8608,49 @@ 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;
}
}
@@ -8758,7 +8806,7 @@ 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

168
0036-Fix-for-search-u-option-failing-in-maple-tree-kernel.patch Normal file
View File

@ -0,0 +1,168 @@
From d0d6cf868577fdca81c40633fa082dae1794294f Mon Sep 17 00:00:00 2001
From: Tao Liu <ltao@redhat.com>
Date: Wed, 22 Feb 2023 14:32:09 +0800
Subject: [PATCH 08/12] 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>
---
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

258
0037-Enhance-net-command-to-display-IPv6-address-of-netwo.patch Normal file
View File

@ -0,0 +1,258 @@
From 38325fab533751a001b80481cec149213d125abb Mon Sep 17 00:00:00 2001
From: Lianbo Jiang <lijiang@redhat.com>
Date: Tue, 7 Mar 2023 17:14:25 +0800
Subject: [PATCH 09/12] 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 e76af3c78b69..1f2cf6e0ce01 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 a974fc9141a0..28846d06273c 100644
--- a/symbols.c
+++ b/symbols.c
@@ -9787,6 +9787,7 @@ 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",
@@ -9839,6 +9840,11 @@ 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

1071
0038-Fix-C99-compatibility-issues-in-embedded-copy-of-GDB.patch Normal file
View File

File diff suppressed because it is too large Load Diff

44
0039-Fix-for-net-n-option-to-properly-deal-with-an-invali.patch Normal file
View File

@ -0,0 +1,44 @@
From 5a652ed0c8db8d4c5891091b747470431054c717 Mon Sep 17 00:00:00 2001
From: Lianbo Jiang <lijiang@redhat.com>
Date: Wed, 8 Mar 2023 20:22:02 +0800
Subject: [PATCH 11/12] 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

71
0040-gdb-Fix-an-assertion-failure-in-dw2_find_pc_sect_com.patch Normal file
View File

@ -0,0 +1,71 @@
From ade71c3ec1d28751c3d6ba1eec71781bdff093d3 Mon Sep 17 00:00:00 2001
From: Lianbo Jiang <lijiang@redhat.com>
Date: Tue, 7 Mar 2023 19:04:08 +0800
Subject: [PATCH 12/12] gdb: Fix an assertion failure in
dw2_find_pc_sect_compunit_symtab()
This is a partial backport patch from gdb commit 834eaf9201c1 ("Fix
crash in new DWARF indexer").
Without the patch, the "dis -rl" option may abort due to an assertion
failure in gdb's dw2_find_pc_sect_compunit_symtab():
crash> dis -rl ffffffff96ad716c
dwarf2/read.c:4928: internal-error: compunit_symtab* dw2_find_pc_sect_compunit_symtab(objfile*, bound_minimal_symbol, CORE_ADDR, obj_section*, int): Assertion `result != NULL' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) dwarf2/read.c:4928: internal-error: compunit_symtab* dw2_find_pc_sect_compunit_symtab(objfile*, bound_minimal_symbol, CORE_ADDR, obj_section*, int): Assertion `result != NULL' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Aborted (core dumped)
Reported-by: Buland Kumar Singh <bsingh@redhat.com>
Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
---
gdb-10.2.patch | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
diff --git a/gdb-10.2.patch b/gdb-10.2.patch
index 5089df9e72e1..835aae9859be 100644
--- a/gdb-10.2.patch
+++ b/gdb-10.2.patch
@@ -4,7 +4,7 @@
# that have already been applied. However, if a gdb file has been modified
# multiple times, the subsequent patching may fail to recognize that a
# given patch has been previously applied, and will attempt to re-apply it.
-# To prevent any uninintended consequences, this file also acts as a
+# To prevent any unintended consequences, this file also acts as a
# shell script that can restore any gdb file to its original state prior
# to all subsequent patch applications.
@@ -12,7 +12,8 @@ tar xvzmf gdb-10.2.tar.gz \
gdb-10.2/gdb/symtab.c \
gdb-10.2/gdb/printcmd.c \
gdb-10.2/gdb/symfile.c \
- gdb-10.2/gdb/Makefile.in
+ gdb-10.2/gdb/Makefile.in \
+ gdb-10.2/gdb/dwarf2/read.c
exit 0
@@ -3105,3 +3106,17 @@ exit 0
m4_include([../../config/override.m4])
+--- gdb-10.2/gdb/dwarf2/read.c.orig
++++ gdb-10.2/gdb/dwarf2/read.c
+@@ -4925,7 +4925,10 @@ dw2_find_pc_sect_compunit_symtab (struct objfile *objfile,
+ result = recursively_find_pc_sect_compunit_symtab
+ (dw2_instantiate_symtab (data, per_objfile, false), pc);
+
+- gdb_assert (result != NULL);
++ if (warn_if_readin && result == nullptr)
++ warning (_("(Error: pc %s in address map, but not in symtab.)"),
++ paddress (objfile->arch (), pc));
++
+ return result;
+ }
+
--
2.37.1

159
0041-Fix-kmem-n-option-to-display-memory-blocks-on-Linux-.patch Normal file
View File

@ -0,0 +1,159 @@
From 489093c2183f4f0365d8957e7275cd88225942ce 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] 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>
---
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 1f2cf6e0ce01..12ad6aaa0998 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 28846d06273c..f0721023816d 100644
--- a/symbols.c
+++ b/symbols.c
@@ -10404,6 +10404,7 @@ 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",
@@ -10441,6 +10442,7 @@ 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

52
crash.spec
View File

@ -4,7 +4,7 @@
Summary: Kernel analysis utility for live systems, netdump, diskdump, kdump, LKCD or mcore dumpfiles
Name: crash
Version: 8.0.2
Release: 3%{?dist}
Release: 4%{?dist}
License: GPLv3
Source0: https://github.com/crash-utility/crash/archive/crash-%{version}.tar.gz
Source1: http://ftp.gnu.org/gnu/gdb/gdb-10.2.tar.gz
@ -46,8 +46,20 @@ Patch25: 0025-Add-do_maple_tree-for-maple-tree-operations.patch
Patch26: 0026-Introduce-maple-tree-vma-iteration-to-vm_area_dump.patch
Patch27: 0027-Update-the-help-text-of-tree-command-for-maple-tree.patch
Patch28: 0028-Dump-maple-tree-offset-variables-by-help-o.patch
Patch29: crash-8.0.2_build.patch
Patch30: crash-8.0.0-5-gdb-cdefs.patch
Patch29: 0029-Fix-for-bt-command-printing-bogus-exception-frame-wa.patch
Patch30: 0030-Fix-kmem-s-S-not-working-properly-on-RHEL8.6-and-lat.patch
Patch31: 0031-Fix-for-net-s-option-to-show-IPv6-addresses-on-Linux.patch
Patch32: 0032-Fix-for-kmem-i-option-to-not-print-invalid-values-fo.patch
Patch33: 0033-Fix-for-bt-command-unnecessarily-printing-an-excepti.patch
Patch34: 0034-Fix-for-dis-command-to-correctly-display-the-offset-.patch
Patch35: 0035-x86_64-Fix-bt-command-on-kernels-with-random_kstack_.patch
Patch36: 0036-Fix-for-search-u-option-failing-in-maple-tree-kernel.patch
Patch37: 0037-Enhance-net-command-to-display-IPv6-address-of-netwo.patch
Patch38: 0038-Fix-C99-compatibility-issues-in-embedded-copy-of-GDB.patch
Patch39: 0039-Fix-for-net-n-option-to-properly-deal-with-an-invali.patch
Patch40: 0040-gdb-Fix-an-assertion-failure-in-dw2_find_pc_sect_com.patch
Patch41: 0041-Fix-kmem-n-option-to-display-memory-blocks-on-Linux-.patch
Patch42: crash-8.0.2_build.patch
%description
The core analysis suite is a self-contained tool that can be used to
@ -96,11 +108,20 @@ offered by Mission Critical Linux, or the LKCD kernel patch.
%patch26 -p1
%patch27 -p1
%patch28 -p1
%patch29 -p1 -b crash-8.0.2_build.patch
%ifarch ppc64le
%patch30 -p1 -b crash-8.0.0-5-gdb-cdefs.patch
%endif
%patch29 -p1
%patch30 -p1
%patch31 -p1
%patch32 -p1
%patch33 -p1
%patch34 -p1
%patch35 -p1
%patch36 -p1
%patch37 -p1
%patch38 -p1
%patch39 -p1
%patch40 -p1
%patch41 -p1
%patch42 -p1
%build
@ -126,6 +147,21 @@ cp -p defs.h %{buildroot}%{_includedir}/crash
%{_includedir}/*
%changelog
* Fri Mar 10 2023 Lianbo Jiang <lijiang@redhat.com> - 8.0.2-4
- Fix "kmem -n" option to display memory blocks on Linux 6.3-rc1 and later
- gdb: Fix an assertion failure in dw2_find_pc_sect_compunit_symtab()
- Fix for "net -n" option to properly deal with an invalid argument
- Fix C99 compatibility issues in embedded copy of GDB
- Enhance "net" command to display IPv6 address of network interface
- Fix for "search -u" option failing in maple tree kernel
- x86_64: Fix "bt" command on kernels with random_kstack_offset=on
- Fix for "dis" command to correctly display the offset of disassembly code
- Fix for "bt" command unnecessarily printing an exception frame
- Fix for "kmem -i" option to not print invalid values for CACHED
- Fix for "net -s" option to show IPv6 addresses on Linux 3.13 and later
- Fix "kmem -s|-S" not working properly on RHEL8.6 and later
- Fix for "bt" command printing "bogus exception frame" warning
* Tue Feb 07 2023 Lianbo Jiang <lijiang@redhat.com> - 8.0.2-3
- Update to the latest upstream commit <46344aa2f92b>