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Release 2.0.10-1

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Rebase kexec-tools to 2.0.10
Drop unused 2.0.7 patches in git tree
This commit is contained in:
Dave Young 2015-07-09 09:35:08 +08:00
parent 2b76613fc9
commit 35dd19e611
7 changed files with 9 additions and 561 deletions
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1
.gitignore vendored
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@ -8,3 +8,4 @@
/kexec-tools-2.0.9.tar.xz /kexec-tools-2.0.9.tar.xz
/makedumpfile-1.5.8.tar.gz /makedumpfile-1.5.8.tar.gz
/eppic_050615.tar.gz /eppic_050615.tar.gz
/kexec-tools-2.0.10.tar.xz

443
kexec-tools-2.0.7-Provide-an-option-to-use-new-kexec-system-call.patch
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@ -1,443 +0,0 @@
From 046d1755d2bd723a11a180c265e61a884990712e Mon Sep 17 00:00:00 2001
From: Vivek Goyal <vgoyal@redhat.com>
Date: Mon, 18 Aug 2014 11:22:32 -0400
Subject: [PATCH] kexec: Provide an option to use new kexec system call
Hi,
This is v2 of the patch. Since v1, I moved syscall implemented check littler
earlier in the function as per the feedback.
Now a new kexec syscall (kexec_file_load()) has been merged in upstream
kernel. This system call takes file descriptors of kernel and initramfs
as input (as opposed to list of segments to be loaded). This new system
call allows for signature verification of the kernel being loaded.
One use of signature verification of kernel is secureboot systems where
we want to allow kexec into a kernel only if it is validly signed by
a key system trusts.
This patch provides and option --kexec-file-syscall (-s), to force use of
new system call for kexec. Default is to continue to use old syscall.
Currently only bzImage64 on x86_64 can be loaded using this system call.
As kernel adds support for more arches and for more image types, kexec-tools
can be modified accordingly.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
kexec/arch/x86_64/kexec-bzImage64.c | 86 +++++++++++++++++++++++
kexec/kexec-syscall.h | 32 +++++++++
kexec/kexec.c | 132 +++++++++++++++++++++++++++++++++++-
kexec/kexec.h | 11 ++-
4 files changed, 257 insertions(+), 4 deletions(-)
diff --git a/kexec/arch/x86_64/kexec-bzImage64.c b/kexec/arch/x86_64/kexec-bzImage64.c
index 1983bcf..8edb3e4 100644
--- a/kexec/arch/x86_64/kexec-bzImage64.c
+++ b/kexec/arch/x86_64/kexec-bzImage64.c
@@ -235,6 +235,89 @@ static int do_bzImage64_load(struct kexec_info *info,
return 0;
}
+/* This assumes file is being loaded using file based kexec syscall */
+int bzImage64_load_file(int argc, char **argv, struct kexec_info *info)
+{
+ int ret = 0;
+ char *command_line = NULL, *tmp_cmdline = NULL;
+ const char *ramdisk = NULL, *append = NULL;
+ int entry_16bit = 0, entry_32bit = 0;
+ int opt;
+ int command_line_len;
+
+ /* See options.h -- add any more there, too. */
+ static const struct option options[] = {
+ KEXEC_ARCH_OPTIONS
+ { "command-line", 1, 0, OPT_APPEND },
+ { "append", 1, 0, OPT_APPEND },
+ { "reuse-cmdline", 0, 0, OPT_REUSE_CMDLINE },
+ { "initrd", 1, 0, OPT_RAMDISK },
+ { "ramdisk", 1, 0, OPT_RAMDISK },
+ { "real-mode", 0, 0, OPT_REAL_MODE },
+ { "entry-32bit", 0, 0, OPT_ENTRY_32BIT },
+ { 0, 0, 0, 0 },
+ };
+ static const char short_options[] = KEXEC_ARCH_OPT_STR "d";
+
+ while ((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) {
+ switch (opt) {
+ default:
+ /* Ignore core options */
+ if (opt < OPT_ARCH_MAX)
+ break;
+ case OPT_APPEND:
+ append = optarg;
+ break;
+ case OPT_REUSE_CMDLINE:
+ tmp_cmdline = get_command_line();
+ break;
+ case OPT_RAMDISK:
+ ramdisk = optarg;
+ break;
+ case OPT_REAL_MODE:
+ entry_16bit = 1;
+ break;
+ case OPT_ENTRY_32BIT:
+ entry_32bit = 1;
+ break;
+ }
+ }
+ command_line = concat_cmdline(tmp_cmdline, append);
+ if (tmp_cmdline)
+ free(tmp_cmdline);
+ command_line_len = 0;
+ if (command_line) {
+ command_line_len = strlen(command_line) + 1;
+ } else {
+ command_line = strdup("\0");
+ command_line_len = 1;
+ }
+
+ if (entry_16bit || entry_32bit) {
+ fprintf(stderr, "Kexec2 syscall does not support 16bit"
+ " or 32bit entry yet\n");
+ ret = -1;
+ goto out;
+ }
+
+ if (ramdisk) {
+ info->initrd_fd = open(ramdisk, O_RDONLY);
+ if (info->initrd_fd == -1) {
+ fprintf(stderr, "Could not open initrd file %s:%s\n",
+ ramdisk, strerror(errno));
+ ret = -1;
+ goto out;
+ }
+ }
+
+ info->command_line = command_line;
+ info->command_line_len = command_line_len;
+ return ret;
+out:
+ free(command_line);
+ return ret;
+}
+
int bzImage64_load(int argc, char **argv, const char *buf, off_t len,
struct kexec_info *info)
{
@@ -247,6 +330,9 @@ int bzImage64_load(int argc, char **argv, const char *buf, off_t len,
int opt;
int result;
+ if (info->file_mode)
+ return bzImage64_load_file(argc, argv, info);
+
/* See options.h -- add any more there, too. */
static const struct option options[] = {
KEXEC_ARCH_OPTIONS
diff --git a/kexec/kexec-syscall.h b/kexec/kexec-syscall.h
index 6238044..ce2e20b 100644
--- a/kexec/kexec-syscall.h
+++ b/kexec/kexec-syscall.h
@@ -53,6 +53,19 @@
#endif
#endif /*ifndef __NR_kexec_load*/
+#ifndef __NR_kexec_file_load
+
+#ifdef __x86_64__
+#define __NR_kexec_file_load 320
+#endif
+
+#ifndef __NR_kexec_file_load
+/* system call not available for the arch */
+#define __NR_kexec_file_load 0xffffffff /* system call not available */
+#endif
+
+#endif /*ifndef __NR_kexec_file_load*/
+
struct kexec_segment;
static inline long kexec_load(void *entry, unsigned long nr_segments,
@@ -61,10 +74,29 @@ static inline long kexec_load(void *entry, unsigned long nr_segments,
return (long) syscall(__NR_kexec_load, entry, nr_segments, segments, flags);
}
+static inline int is_kexec_file_load_implemented(void) {
+ if (__NR_kexec_file_load != 0xffffffff)
+ return 1;
+ return 0;
+}
+
+static inline long kexec_file_load(int kernel_fd, int initrd_fd,
+ unsigned long cmdline_len, const char *cmdline_ptr,
+ unsigned long flags)
+{
+ return (long) syscall(__NR_kexec_file_load, kernel_fd, initrd_fd,
+ cmdline_len, cmdline_ptr, flags);
+}
+
#define KEXEC_ON_CRASH 0x00000001
#define KEXEC_PRESERVE_CONTEXT 0x00000002
#define KEXEC_ARCH_MASK 0xffff0000
+/* Flags for kexec file based system call */
+#define KEXEC_FILE_UNLOAD 0x00000001
+#define KEXEC_FILE_ON_CRASH 0x00000002
+#define KEXEC_FILE_NO_INITRAMFS 0x00000004
+
/* These values match the ELF architecture values.
* Unless there is a good reason that should continue to be the case.
*/
diff --git a/kexec/kexec.c b/kexec/kexec.c
index 133e622..7e7b604 100644
--- a/kexec/kexec.c
+++ b/kexec/kexec.c
@@ -51,6 +51,8 @@
unsigned long long mem_min = 0;
unsigned long long mem_max = ULONG_MAX;
static unsigned long kexec_flags = 0;
+/* Flags for kexec file (fd) based syscall */
+static unsigned long kexec_file_flags = 0;
int kexec_debug = 0;
void dbgprint_mem_range(const char *prefix, struct memory_range *mr, int nr_mr)
@@ -787,6 +789,19 @@ static int my_load(const char *type, int fileind, int argc, char **argv,
return result;
}
+static int kexec_file_unload(unsigned long kexec_file_flags)
+{
+ int ret = 0;
+
+ ret = kexec_file_load(-1, -1, 0, NULL, kexec_file_flags);
+ if (ret != 0) {
+ /* The unload failed, print some debugging information */
+ fprintf(stderr, "kexec_file_load(unload) failed\n: %s\n",
+ strerror(errno));
+ }
+ return ret;
+}
+
static int k_unload (unsigned long kexec_flags)
{
int result;
@@ -925,6 +940,7 @@ void usage(void)
" (0 means it's not jump back or\n"
" preserve context)\n"
" to original kernel.\n"
+ " -s, --kexec-file-syscall Use file based syscall for kexec operation\n"
" -d, --debug Enable debugging to help spot a failure.\n"
"\n"
"Supported kernel file types and options: \n");
@@ -1072,6 +1088,82 @@ char *concat_cmdline(const char *base, const char *append)
return cmdline;
}
+/* New file based kexec system call related code */
+static int do_kexec_file_load(int fileind, int argc, char **argv,
+ unsigned long flags) {
+
+ char *kernel;
+ int kernel_fd, i;
+ struct kexec_info info;
+ int ret = 0;
+ char *kernel_buf;
+ off_t kernel_size;
+
+ memset(&info, 0, sizeof(info));
+ info.segment = NULL;
+ info.nr_segments = 0;
+ info.entry = NULL;
+ info.backup_start = 0;
+ info.kexec_flags = flags;
+
+ info.file_mode = 1;
+ info.initrd_fd = -1;
+
+ if (!is_kexec_file_load_implemented()) {
+ fprintf(stderr, "syscall kexec_file_load not available.\n");
+ return -1;
+ }
+
+ if (argc - fileind <= 0) {
+ fprintf(stderr, "No kernel specified\n");
+ usage();
+ return -1;
+ }
+
+ kernel = argv[fileind];
+
+ kernel_fd = open(kernel, O_RDONLY);
+ if (kernel_fd == -1) {
+ fprintf(stderr, "Failed to open file %s:%s\n", kernel,
+ strerror(errno));
+ return -1;
+ }
+
+ /* slurp in the input kernel */
+ kernel_buf = slurp_decompress_file(kernel, &kernel_size);
+
+ for (i = 0; i < file_types; i++) {
+ if (file_type[i].probe(kernel_buf, kernel_size) >= 0)
+ break;
+ }
+
+ if (i == file_types) {
+ fprintf(stderr, "Cannot determine the file type " "of %s\n",
+ kernel);
+ return -1;
+ }
+
+ ret = file_type[i].load(argc, argv, kernel_buf, kernel_size, &info);
+ if (ret < 0) {
+ fprintf(stderr, "Cannot load %s\n", kernel);
+ return ret;
+ }
+
+ /*
+ * If there is no initramfs, set KEXEC_FILE_NO_INITRAMFS flag so that
+ * kernel does not return error with negative initrd_fd.
+ */
+ if (info.initrd_fd == -1)
+ info.kexec_flags |= KEXEC_FILE_NO_INITRAMFS;
+
+ ret = kexec_file_load(kernel_fd, info.initrd_fd, info.command_line_len,
+ info.command_line, info.kexec_flags);
+ if (ret != 0)
+ fprintf(stderr, "kexec_file_load failed: %s\n",
+ strerror(errno));
+ return ret;
+}
+
int main(int argc, char *argv[])
{
@@ -1083,6 +1175,7 @@ int main(int argc, char *argv[])
int do_ifdown = 0;
int do_unload = 0;
int do_reuse_initrd = 0;
+ int do_kexec_file_syscall = 0;
void *entry = 0;
char *type = 0;
char *endptr;
@@ -1095,6 +1188,23 @@ int main(int argc, char *argv[])
};
static const char short_options[] = KEXEC_ALL_OPT_STR;
+ /*
+ * First check if --use-kexec-file-syscall is set. That changes lot of
+ * things
+ */
+ while ((opt = getopt_long(argc, argv, short_options,
+ options, 0)) != -1) {
+ switch(opt) {
+ case OPT_KEXEC_FILE_SYSCALL:
+ do_kexec_file_syscall = 1;
+ break;
+ }
+ }
+
+ /* Reset getopt for the next pass. */
+ opterr = 1;
+ optind = 1;
+
while ((opt = getopt_long(argc, argv, short_options,
options, 0)) != -1) {
switch(opt) {
@@ -1127,6 +1237,8 @@ int main(int argc, char *argv[])
do_shutdown = 0;
do_sync = 0;
do_unload = 1;
+ if (do_kexec_file_syscall)
+ kexec_file_flags |= KEXEC_FILE_UNLOAD;
break;
case OPT_EXEC:
do_load = 0;
@@ -1169,7 +1281,10 @@ int main(int argc, char *argv[])
do_exec = 0;
do_shutdown = 0;
do_sync = 0;
- kexec_flags = KEXEC_ON_CRASH;
+ if (do_kexec_file_syscall)
+ kexec_file_flags |= KEXEC_FILE_ON_CRASH;
+ else
+ kexec_flags = KEXEC_ON_CRASH;
break;
case OPT_MEM_MIN:
mem_min = strtoul(optarg, &endptr, 0);
@@ -1194,6 +1309,9 @@ int main(int argc, char *argv[])
case OPT_REUSE_INITRD:
do_reuse_initrd = 1;
break;
+ case OPT_KEXEC_FILE_SYSCALL:
+ /* We already parsed it. Nothing to do. */
+ break;
default:
break;
}
@@ -1238,10 +1356,18 @@ int main(int argc, char *argv[])
}
if (do_unload) {
- result = k_unload(kexec_flags);
+ if (do_kexec_file_syscall)
+ result = kexec_file_unload(kexec_file_flags);
+ else
+ result = k_unload(kexec_flags);
}
if (do_load && (result == 0)) {
- result = my_load(type, fileind, argc, argv, kexec_flags, entry);
+ if (do_kexec_file_syscall)
+ result = do_kexec_file_load(fileind, argc, argv,
+ kexec_file_flags);
+ else
+ result = my_load(type, fileind, argc, argv,
+ kexec_flags, entry);
}
/* Don't shutdown unless there is something to reboot to! */
if ((result == 0) && (do_shutdown || do_exec) && !kexec_loaded()) {
diff --git a/kexec/kexec.h b/kexec/kexec.h
index 2fad7dc..4be2b2f 100644
--- a/kexec/kexec.h
+++ b/kexec/kexec.h
@@ -156,6 +156,13 @@ struct kexec_info {
unsigned long kexec_flags;
unsigned long backup_src_start;
unsigned long backup_src_size;
+ /* Set to 1 if we are using kexec file syscall */
+ unsigned long file_mode :1;
+
+ /* Filled by kernel image processing code */
+ int initrd_fd;
+ char *command_line;
+ int command_line_len;
};
struct arch_map_entry {
@@ -207,6 +214,7 @@ extern int file_types;
#define OPT_UNLOAD 'u'
#define OPT_TYPE 't'
#define OPT_PANIC 'p'
+#define OPT_KEXEC_FILE_SYSCALL 's'
#define OPT_MEM_MIN 256
#define OPT_MEM_MAX 257
#define OPT_REUSE_INITRD 258
@@ -230,9 +238,10 @@ extern int file_types;
{ "mem-min", 1, 0, OPT_MEM_MIN }, \
{ "mem-max", 1, 0, OPT_MEM_MAX }, \
{ "reuseinitrd", 0, 0, OPT_REUSE_INITRD }, \
+ { "kexec-file-syscall", 0, 0, OPT_KEXEC_FILE_SYSCALL }, \
{ "debug", 0, 0, OPT_DEBUG }, \
-#define KEXEC_OPT_STR "h?vdfxluet:p"
+#define KEXEC_OPT_STR "h?vdfxluet:ps"
extern void dbgprint_mem_range(const char *prefix, struct memory_range *mr, int nr_mr);
extern void die(const char *fmt, ...)
--
1.9.0

37
kexec-tools-2.0.7-kexec-ppc64-disabling-exception-handling-when-buildi.patch
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@ -1,37 +0,0 @@
From 335bad77fb0750f3961aa8df47c83a522d212b08 Mon Sep 17 00:00:00 2001
From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Date: Tue, 22 Jul 2014 18:22:28 +0200
Subject: [PATCH] kexec/ppc64: disabling exception handling when building the
purgatory
Some Linux distributions would like to turn on the GCC exception handling
by default. As this option introduces symbols in the built code that are
defined in a separate shared library, this is not a good idea to have such
an option activated when building the purgatory.
This patch forces the exception handling to be turned off when building the
purgatory on ppc64 BE and LE.
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
purgatory/arch/ppc64/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/purgatory/arch/ppc64/Makefile b/purgatory/arch/ppc64/Makefile
index 712e2b1..6c58fa2 100644
--- a/purgatory/arch/ppc64/Makefile
+++ b/purgatory/arch/ppc64/Makefile
@@ -9,7 +9,8 @@ ppc64_PURGATORY_SRCS += purgatory/arch/ppc64/console-ppc64.c
ppc64_PURGATORY_SRCS += purgatory/arch/ppc64/crashdump_backup.c
ppc64_PURGATORY_SRCS += purgatory/arch/ppc64/misc.S
-ppc64_PURGATORY_EXTRA_CFLAGS += -m64 -msoft-float -fno-stack-protector
+ppc64_PURGATORY_EXTRA_CFLAGS += -m64 -msoft-float -fno-stack-protector \
+ -fno-exceptions
ppc64_PURGATORY_EXTRA_ASFLAGS += -m64
ifeq ($(SUBARCH),BE)
ppc64_PURGATORY_EXTRA_LDFLAGS += -melf64ppc
--
1.9.3

42
kexec-tools-2.0.7-kexec-ppc64-move-to-device-tree-version-17.patch
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@ -1,42 +0,0 @@
From 2ca220389d212249cc842d49084c95e524fb299b Mon Sep 17 00:00:00 2001
From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Date: Mon, 16 Jun 2014 14:42:43 +0200
Subject: [PATCH] kexec/ppc64: move to device tree version 17
Kernel commit e6a6928c3ea1d0195ed75a091e345696b916c09b changed the way the
device tree is processed in the kernel. Now version 2 is no more supported.
This patch move the version of the device tree generated in ppc64
environment from 2 to 17, allowing to kexec kernel 3.16.
In addition, automates the define of NEED_STRUCTURE_BLOCK_EXTRA_PAD which
should not be set for DT version 16 and above.
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
kexec/arch/ppc64/kexec-ppc64.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/kexec/arch/ppc64/kexec-ppc64.h b/kexec/arch/ppc64/kexec-ppc64.h
index 9a0aecf..89ee942 100644
--- a/kexec/arch/ppc64/kexec-ppc64.h
+++ b/kexec/arch/ppc64/kexec-ppc64.h
@@ -6,9 +6,11 @@
#define CORE_TYPE_ELF32 1
#define CORE_TYPE_ELF64 2
-#define BOOT_BLOCK_VERSION 2
-#define BOOT_BLOCK_LAST_COMP_VERSION 2
-#define NEED_STRUCTURE_BLOCK_EXTRA_PAD
+#define BOOT_BLOCK_VERSION 17
+#define BOOT_BLOCK_LAST_COMP_VERSION 17
+#if (BOOT_BLOCK_VERSION < 16)
+# define NEED_STRUCTURE_BLOCK_EXTRA_PAD
+#endif
#define HAVE_DYNAMIC_MEMORY
#define NEED_RESERVE_DTB
--
1.9.3

36
kexec-tools-2.0.7-ppc64-kdump-Fix-ELF-header-endianess.patch
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@ -1,36 +0,0 @@
From 45b33eb2e70cd44f41abf1058a92659cb4315011 Mon Sep 17 00:00:00 2001
From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Date: Fri, 25 Jul 2014 17:07:49 +0200
Subject: [PATCH] ppc64/kdump: Fix ELF header endianess
The ELF header created among the loading of the kdump kernel should be
flagged using the current endianess and not always as big endian.
Without this patch the data exposed in /proc/vmcore are not readable when
running in LE mode.
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
kexec/arch/ppc64/crashdump-ppc64.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/kexec/arch/ppc64/crashdump-ppc64.c b/kexec/arch/ppc64/crashdump-ppc64.c
index 00a0e63..6214b83 100644
--- a/kexec/arch/ppc64/crashdump-ppc64.c
+++ b/kexec/arch/ppc64/crashdump-ppc64.c
@@ -38,7 +38,11 @@
static struct crash_elf_info elf_info64 =
{
class: ELFCLASS64,
+#if BYTE_ORDER == LITTLE_ENDIAN
+ data: ELFDATA2LSB,
+#else
data: ELFDATA2MSB,
+#endif
machine: EM_PPC64,
page_offset: PAGE_OFFSET,
lowmem_limit: MAXMEM,
--
1.9.3

9
kexec-tools.spec
View File

@ -1,6 +1,6 @@
Name: kexec-tools Name: kexec-tools
Version: 2.0.9 Version: 2.0.10
Release: 2%{?dist} Release: 1%{?dist}
License: GPLv2 License: GPLv2
Group: Applications/System Group: Applications/System
Summary: The kexec/kdump userspace component Summary: The kexec/kdump userspace component
@ -308,6 +308,11 @@ done
%doc %doc
%changelog %changelog
* Thu Jul 9 2015 Dave Young <dyoung@redhat.com> - 2.0.10-1
- Rebase kexec-tools 2.0.10
- Rebase eppic git tree 050615
- Enhance kdump.conf "default" parameters check
* Thu Jul 2 2015 Dave Young <dyoung@redhat.com> - 2.0.9-2 * Thu Jul 2 2015 Dave Young <dyoung@redhat.com> - 2.0.9-2
- Resolve bug 1236456, kexec load fail because koji add extra gcc flags. - Resolve bug 1236456, kexec load fail because koji add extra gcc flags.
- Remove -FPIC for makedumpfile since it is not necessary without harden build - Remove -FPIC for makedumpfile since it is not necessary without harden build

2
sources
View File

@ -1,6 +1,6 @@
31668a6dfb8823dd0b7ac09d06fb902e makedumpfile-1.5.7.tar.gz 31668a6dfb8823dd0b7ac09d06fb902e makedumpfile-1.5.7.tar.gz
2c4dec4e857e84ca530478bac0ec114b kexec-tools-2.0.8.tar.xz
b05ad86688ed7f1a4fb6fbb6323b4aee kdump-anaconda-addon-005-9-g6115ca7.tar.gz b05ad86688ed7f1a4fb6fbb6323b4aee kdump-anaconda-addon-005-9-g6115ca7.tar.gz
6681319934e22e74c532bd392ccb1bbb kexec-tools-2.0.9.tar.xz 6681319934e22e74c532bd392ccb1bbb kexec-tools-2.0.9.tar.xz
642d975349dff744c6027d4486499258 makedumpfile-1.5.8.tar.gz 642d975349dff744c6027d4486499258 makedumpfile-1.5.8.tar.gz
43e84f9d3e5b7ba939cc05035a6fb78a eppic_050615.tar.gz 43e84f9d3e5b7ba939cc05035a6fb78a eppic_050615.tar.gz
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