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[PATCH] lockdep: print current locks on in_atomic warnings

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Add debug_show_held_locks(current) to __might_sleep() and schedule(); this
makes finding the offending lock leak easier.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Peter Zijlstra 2006-12-06 20:37:21 -08:00 committed by Linus Torvalds
parent 8bb0269160
commit a4c410f00f
1 changed files with 2 additions and 0 deletions
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2
kernel/sched.c
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@ -3333,6 +3333,7 @@ asmlinkage void __sched schedule(void)
printk(KERN_ERR "BUG: scheduling while atomic: "
"%s/0x%08x/%d\n",
current->comm, preempt_count(), current->pid);
debug_show_held_locks(current);
dump_stack();
}
profile_hit(SCHED_PROFILING, __builtin_return_address(0));
@ -6872,6 +6873,7 @@ void __might_sleep(char *file, int line)
" context at %s:%d\n", file, line);
printk("in_atomic():%d, irqs_disabled():%d\n",
in_atomic(), irqs_disabled());
debug_show_held_locks(current);
dump_stack();
}
#endif