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Message-ID: <alpine.DEB.2.00.1103151206140.9668@cl320.eecs.utk.edu> Date: Tue, 15 Mar 2011 12:09:18 -0400 (EDT) From: Vince Weaver <vweaver1@...s.utk.edu> To: Peter Zijlstra <a.p.zijlstra@...llo.nl> cc: Arnaldo Carvalho de Melo <acme@...hat.com>, linux-kernel@...r.kernel.org, Paul Mackerras <paulus@...ba.org>, Ingo Molnar <mingo@...e.hu>, Corey Ashford <cjashfor@...ux.vnet.ibm.com>, Stephane Eranian <eranian@...gle.com> Subject: Re: [PATCH] perf: Fix tear-down of inherited group events On Tue, 15 Mar 2011, Peter Zijlstra wrote: > Subject: perf: Fix tear-down of inherited group events > From: Peter Zijlstra <a.p.zijlstra@...llo.nl> > Date: Tue Mar 15 14:37:10 CET 2011 > > When destroying inherited events, we need to destroy groups too, > otherwise the event iteration in perf_event_exit_task_context() will > miss group siblings and we leak events with all the consequences. Thanks for the fix! I can verify that when applied against current linus-git kernel that my original test case no longer leaks memory. I've also run the full PAPI regression tests, plus the BLAS/PAPI benchmark code that originally showed the problem and everything checks out fine. It's a shame this fix didn't make it in before 2.6.38. Tested-by: Vince Weaver <vweaver1@...s.utk.edu> Vince vweaver1@...s.utk.edu -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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