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kexec: remove KMSG_DUMP_KEXEC

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KMSG_DUMP_KEXEC is useless because we already save kernel messages inside
/proc/vmcore, and it is unsafe to allow modules to do other stuffs in a
crash dump scenario.

[[email protected]: fix powerpc build]
Signed-off-by: WANG Cong <[email protected]>
Reported-by: Vivek Goyal <[email protected]>
Acked-by: Vivek Goyal <[email protected]>
Acked-by: Jarod Wilson <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: KOSAKI Motohiro <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
WANG Cong 2012-01-12 17:20:11 -08:00 • committed by Linus Torvalds
commit a3dd332305
5 changed files with 2 additions and 9 deletions
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3
kernel/kexec.c
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@ -32,7 +32,6 @@
#include <linux/console.h>
#include <linux/vmalloc.h>
#include <linux/swap.h>
#include <linux/kmsg_dump.h>
#include <linux/syscore_ops.h>
#include <asm/page.h>
@ -1094,8 +1093,6 @@ void crash_kexec(struct pt_regs *regs)
if (kexec_crash_image) {
struct pt_regs fixed_regs;
kmsg_dump(KMSG_DUMP_KEXEC);
crash_setup_regs(&fixed_regs, regs);
crash_save_vmcoreinfo();
machine_crash_shutdown(&fixed_regs);