sched: Taint kernel with TAINT_WARN after sleep-in-atomic bug
authorKonstantin Khlebnikov <khlebnikov@openvz.org>
Thu, 10 May 2012 12:20:04 +0000 (16:20 +0400)
committerIngo Molnar <mingo@kernel.org>
Fri, 18 May 2012 11:07:40 +0000 (13:07 +0200)
Usually sleep-in-atomic bugs are followed by dozens other warnings.
This patch should help to figure out original source of problem.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20120510122004.4873.12726.stgit@zurg
Signed-off-by: Ingo Molnar <mingo@kernel.org>
kernel/sched/core.c

index 24ca677b545786dc23939c9c70e315a52b24c36b..ab9745f7e115ff92dc33c3a690a21eb65164e5c7 100644 (file)
@@ -3138,6 +3138,7 @@ static noinline void __schedule_bug(struct task_struct *prev)
        if (irqs_disabled())
                print_irqtrace_events(prev);
        dump_stack();
+       add_taint(TAINT_WARN);
 }
 
 /*