linux-kernel - Re: [PATCH] perf_counter: Report the cloning task as parent on perf_counter

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Message-ID: <4A8678C4.4060309@cs.helsinki.fi>
Date:	Sat, 15 Aug 2009 11:58:44 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	mingo@...e.hu, Arnaldo Carvalho de Melo <acme@...hat.com>,
	paulus@...ba.org, linux-kernel@...r.kernel.org,
	Anton Blanchard <anton@...ba.org>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: [PATCH] perf_counter: Report the cloning task as parent on perf_counter_fork()

Peter Zijlstra wrote:
> A bug in (9f498cc: perf_counter: Full task tracing) makes profiling
> multi-threaded apps it go belly up.

Thanks!

Tested-by: Pekka Enberg <penberg@...helsinki.fi>

I hope the fix makes it to 2.6.31 final as perf is unusable for 
multi-threaded applications.

			Pekka
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