linux-kernel - Re: [BUG] perf and kmemcheck : fatal combination

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Date:	Tue, 26 Apr 2011 12:27:48 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Pekka Enberg <penberg@...nel.org>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Paul Mackerras <paulus@...ba.org>,
	Vegard Nossum <vegardno@....uio.no>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: Re: [BUG] perf and kmemcheck : fatal combination

Le mardi 26 avril 2011 à 13:08 +0300, Pekka Enberg a écrit :

> That's just kmemcheck fault handler warning about in_nmi(). You could
> try to make the relevant perf allocations use __GFP_NOTRACK and/or
> SLAB_NOTRACK to avoid page faulting in the perf nmi handler.

Yes, I am going to try that, thanks


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