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authorAnton Blanchard <anton@samba.org>2010-05-26 14:44:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-27 09:12:53 -0700
commit5b530fc18324602e1ecb70cd280c2194b2656a5e (patch)
treed96b7b408818606ebdc41c1895c8eb4ed03db37a /kernel/panic.c
parentcccad8f9f0f1be585c9dc534857ca9c67e538836 (diff)
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panic: call console_verbose() in panic
Most distros turn the console verbosity down and that means a backtrace after a panic never makes it to the console. I assume we haven't seen this because a panic is often preceeded by an oops which will have called console_verbose. There are however a lot of places we call panic directly, and they are broken. Use console_verbose like we do in the oops path to ensure a directly called panic will print a backtrace. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/panic.c')
-rw-r--r--kernel/panic.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/panic.c b/kernel/panic.c
index dbe13dbb057..3b16cd93fa7 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -87,6 +87,7 @@ NORET_TYPE void panic(const char * fmt, ...)
*/
preempt_disable();
+ console_verbose();
bust_spinlocks(1);
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);