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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2009-12-22 03:15:43 +0000
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-12-31 19:45:04 +0000
commit0f4bd46ec252887f44f1f065b41867cac8f70dfb (patch)
treedaa176e9f9e1f5e9ba8c5476b5333142f31aa062 /kernel/panic.c
parent60d9aa758c00f20ade0cb1951f6a934f628dd2d7 (diff)
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kmsg_dump: Dump on crash_kexec as well
crash_kexec gets called before kmsg_dump(KMSG_DUMP_OOPS) if panic_on_oops is set, so the kernel log buffer is not stored for this case. This patch adds a KMSG_DUMP_KEXEC dump type which gets called when crash_kexec() is invoked. To avoid getting double dumps, the old KMSG_DUMP_PANIC is moved below crash_kexec(). The mtdoops driver is modified to handle KMSG_DUMP_KEXEC in the same way as a panic. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: Simon Kagstrom <simon.kagstrom@netinsight.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'kernel/panic.c')
-rw-r--r--kernel/panic.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/panic.c b/kernel/panic.c
index 5827f7b9725..c787333282b 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -75,7 +75,6 @@ NORET_TYPE void panic(const char * fmt, ...)
dump_stack();
#endif
- kmsg_dump(KMSG_DUMP_PANIC);
/*
* If we have crashed and we have a crash kernel loaded let it handle
* everything else.
@@ -83,6 +82,8 @@ NORET_TYPE void panic(const char * fmt, ...)
*/
crash_kexec(NULL);
+ kmsg_dump(KMSG_DUMP_PANIC);
+
/*
* Note smp_send_stop is the usual smp shutdown function, which
* unfortunately means it may not be hardened to work in a panic