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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2006-12-07 05:37:21 +0100
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 17:39:36 +0100
commita4c410f00f7ca4bd448b0d63f6f882fd244dc991 (patch)
tree9384e64eda2ee317ceb7b02d1752459ce9fcb8c6
parent[PATCH] corrupted cramfs filesystems cause kernel oops (diff)
downloadlinux-a4c410f00f7ca4bd448b0d63f6f882fd244dc991.tar.xz
linux-a4c410f00f7ca4bd448b0d63f6f882fd244dc991.zip
[PATCH] lockdep: print current locks on in_atomic warnings
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>
Diffstat (limited to '')
-rw-r--r--kernel/sched.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 1848e280504d..343e1794233e 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -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