Commit 53b9d87f authored Sep 11, 2008 by Andrew Morton Committed by Ingo Molnar Sep 12, 2008

lock debug: sit tight when we are already in a panic

in:

  > http://bugzilla.kernel.org/show_bug.cgi?id=11543



The panic code called the kexec code which called mutex_trylock() which
called spin_lock_mutex() which then stupidly went and blurted a load of
debug stuff because of in_interrupt().

Keep the lock debug code from escallating an already crappy situation.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 1d18ef48

include/linux/debug_locks.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -17,7 +17,7 @@ extern int debug_locks_off(void);
		({ \
		int __ret = 0; \
		\
		if (unlikely(c)) { \
		if (!oops_in_progress && unlikely(c)) { \
		if (debug_locks_off() && !debug_locks_silent) \
		WARN_ON(1); \
		__ret = 1; \