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authorIngo Molnar <mingo@elte.hu>2008-02-14 09:07:01 +0100
committerThomas Gleixner <tglx@linutronix.de>2008-05-26 16:15:32 +0200
commit5cb273013e182a35e7db614d3e20a144cba71e53 (patch)
treef027f389e3d9d2ab9750fdc81399f6c5df385fb2 /kernel/panic.c
parent517a92c4e19fcea815332d3155e9fb7723251274 (diff)
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panic: print out stacktrace if DEBUG_BUGVERBOSE
if CONFIG_DEBUG_BUGVERBOSE is set then the user most definitely wanted to see as much information about kernel crashes as possible - so give them at least a stack dump. this is particularly useful for stackprotector related panics, where the stacktrace can give us the exact location of the (attempted) attack. Pointed out by pageexec@freemail.hu in the stackprotector breakage threads. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/panic.c')
-rw-r--r--kernel/panic.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/panic.c b/kernel/panic.c
index f236001cc4d..17aad578a2f 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -80,6 +80,9 @@ NORET_TYPE void panic(const char * fmt, ...)
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
printk(KERN_EMERG "Kernel panic - not syncing: %s\n",buf);
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+ dump_stack();
+#endif
bust_spinlocks(0);
/*