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Date: Fri, 26 Mar 2010 22:41:02 +0100
From: Frederic Weisbecker <fweisbec@gmail.com>
To: Mike Galbraith <efault@gmx.de>
Cc: Li Zefan <lizf@cn.fujitsu.com>, LKML <linux-kernel@vger.kernel.org>,
       Ingo Molnar <mingo@elte.hu>, Peter Zijlstra <peterz@infradead.org>,
       Arnaldo Carvalho de Melo <acme@redhat.com>,
       Paul Mackerras <paulus@samba.org>
Subject: Re: [BUG] perf: hard lockup when using perf-sched
Message-ID: <20100326214101.GE7166@nowhere>
References: <4BA9A885.9050105@cn.fujitsu.com> <1269415964.6530.25.camel@marge.simson.net> <1269418671.6465.6.camel@marge.simson.net> <4BAB1924.4060304@cn.fujitsu.com> <1269509241.8438.30.camel@marge.simson.net> <1269598293.6174.8.camel@marge.simson.net> <20100326172350.GC5188@nowhere> <1269630640.6331.18.camel@marge.simson.net> <20100326192712.GA7166@nowhere> <1269634924.6488.6.camel@marge.simson.net>
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On Fri, Mar 26, 2010 at 09:22:04PM +0100, Mike Galbraith wrote:
> Hm.  Last trace I took is below.
> 
> ./forkbomb&


Hmm, Yeah that's indeed what the traces show.
And your patch really fix this on your box?