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Date: Fri, 15 May 2009 15:56:04 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Srivatsa Vaddagiri <vatsa@in.ibm.com>
Cc: a.p.zijlstra@chello.nl, linux-kernel@vger.kernel.org,
       Mike Galbraith <efault@gmx.de>, Thomas Gleixner <tglx@linutronix.de>,
       Arnaldo Carvalho de Melo <acme@redhat.com>,
       Paul Mackerras <paulus@samba.org>,
       Corey Ashford <cjashfor@linux.vnet.ibm.com>
Subject: Re: perf counter issue -
	WARN_ON_ONCE(!list_empty(&tsk->perf_counter_ctx.counter_list));
Message-ID: <20090515135604.GC16389@elte.hu>
References: <20090513165433.GD16373@in.ibm.com> <20090513165724.GA32707@in.ibm.com>
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* Srivatsa Vaddagiri <vatsa@in.ibm.com> wrote:

> On Wed, May 13, 2009 at 10:24:33PM +0530, Srivatsa Vaddagiri wrote:
> > I am hitting this warning in kernel/exit.c (latest -tip code):
> > 
> > WARN_ON_ONCE(!list_empty(&tsk->perf_counter_ctx.counter_list));
> > 
> > I was using perf counters against a java benchmark.
> 
> Basically using perf counters as:
> 
> 	$ perf stat java ....

hm, is there a reproducer perhaps? Is there some class file i could 
run with specific parameters to reproduce it?

	Ingo