From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] sched: taint kernel with TAINT_WARN after sleep-in-atomic bug
Date: Fri, 18 May 2012 10:54:14 +0200 [thread overview]
Message-ID: <1337331254.573.1.camel@twins> (raw)
In-Reply-To: <20120510122004.4873.12726.stgit@zurg>
On Thu, 2012-05-10 at 16:20 +0400, Konstantin Khlebnikov wrote:
> 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>
Thanks!
> ---
> kernel/sched/core.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index 0533a68..b6458e4 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -3113,6 +3113,7 @@ static noinline void __schedule_bug(struct task_struct *prev)
> if (irqs_disabled())
> print_irqtrace_events(prev);
> dump_stack();
> + add_taint(TAINT_WARN);
> }
>
> /*
>
next prev parent reply other threads:[~2012-05-18 8:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-10 7:54 [PATCH] sched: set TAINT_UNSAFE_SMP after sleep-in-atomic bug Konstantin Khlebnikov
2012-05-10 10:01 ` Peter Zijlstra
2012-05-10 10:56 ` Konstantin Khlebnikov
2012-05-10 11:46 ` Peter Zijlstra
2012-05-10 12:20 ` [PATCH v2] sched: taint kernel with TAINT_WARN " Konstantin Khlebnikov
2012-05-18 8:54 ` Peter Zijlstra [this message]
2012-05-18 11:16 ` [tip:sched/core] sched: Taint " tip-bot for Konstantin Khlebnikov
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