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| author | Alexander Nyberg <alexn@telia.com> | 2005-06-25 14:58:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-25 16:24:54 -0700 |
| commit | 6e274d144302068a00794ec22e73520c0615cb6f (patch) | |
| tree | f7ea59ea47d3c5676fbac8d39e8deaa1f94146ae /kernel/panic.c | |
| parent | 86b1ae38c0a62409dc862a28e3f08920f55f944b (diff) | |
| download | linux-6e274d144302068a00794ec22e73520c0615cb6f.tar.gz linux-6e274d144302068a00794ec22e73520c0615cb6f.tar.bz2 linux-6e274d144302068a00794ec22e73520c0615cb6f.zip | |
[PATCH] kdump: Use real pt_regs from exception
Makes kexec_crashdump() take a pt_regs * as an argument. This allows to
get exact register state at the point of the crash. If we come from direct
panic assertion NULL will be passed and the current registers saved before
crashdump.
This hooks into two places:
die(): check the conditions under which we will panic when calling
do_exit and go there directly with the pt_regs that caused the fatal
fault.
die_nmi(): If we receive an NMI lockup while in the kernel use the
pt_regs and go directly to crash_kexec(). We're probably nested up badly
at this point so this might be the only chance to escape with proper
information.
Signed-off-by: Alexander Nyberg <alexn@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/panic.c')
| -rw-r--r-- | kernel/panic.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/panic.c b/kernel/panic.c index 66f43d33cd80..74ba5f3e46c7 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -83,7 +83,7 @@ NORET_TYPE void panic(const char * fmt, ...) * everything else. * Do we want to call this before we try to display a message? */ - crash_kexec(); + crash_kexec(NULL); #ifdef CONFIG_SMP /* |