linux-kernel - Re: perf counter issue - WARN_ON_ONCE(!list_empty(&tsk->perf_counter_ctx.counter

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Message-ID: <20090515155807.GA25957@in.ibm.com>
Date:	Fri, 15 May 2009 21:28:07 +0530
From:	Srivatsa Vaddagiri <vatsa@...ibm.com>
To:	Arnaldo Carvalho de Melo <acme@...hat.com>
Cc:	Ingo Molnar <mingo@...e.hu>, a.p.zijlstra@...llo.nl,
	linux-kernel@...r.kernel.org, Mike Galbraith <efault@....de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Paul Mackerras <paulus@...ba.org>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>
Subject: Re: perf counter issue -
	WARN_ON_ONCE(!list_empty(&tsk->perf_counter_ctx.counter_list));

On Fri, May 15, 2009 at 11:51:44AM -0300, Arnaldo Carvalho de Melo wrote:
> > hm, is there a reproducer perhaps? Is there some class file i could 
> > run with specific parameters to reproduce it?
> 
> I'll try this with some java benchmarks we have, AMQP related, lets see
> if I can reproduce it.

I tried this with SPECJbb - which I am not at liberty to distribute
unfortunately. I will try and recreate it with volanomark or other open
source benchmarks.

- vatsa
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