From: Konstantin Khlebnikov <khlebnikov@openvz.org>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@redhat.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] sched: set TAINT_UNSAFE_SMP after sleep-in-atomic bug
Date: Thu, 10 May 2012 14:56:00 +0400 [thread overview]
Message-ID: <4FAB9EC0.8090905@openvz.org> (raw)
In-Reply-To: <1336644104.2527.93.camel@twins>
Peter Zijlstra wrote:
> On Thu, 2012-05-10 at 11:54 +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.
>> This taint flag also turns off lockdep, because it can go mad after that.
>
> There's already TAINT_WARN any output with that set should be ignored.
Where? I do not see here anything which might set TAINT_WARN.
Or you suggest to use TAINT_WARN instead of TAINT_UNSAFE_SMP?
next prev parent reply other threads:[~2012-05-10 10:56 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 [this message]
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
2012-05-18 11:16 ` [tip:sched/core] sched: Taint " tip-bot for Konstantin Khlebnikov
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