From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754579AbbEKOGs (ORCPT ); Mon, 11 May 2015 10:06:48 -0400 Received: from mail.kernel.org ([198.145.29.136]:41831 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753748AbbEKOGa (ORCPT ); Mon, 11 May 2015 10:06:30 -0400 Date: Mon, 11 May 2015 11:06:26 -0300 From: Arnaldo Carvalho de Melo To: Namhyung Kim Cc: Ingo Molnar , linux-kernel@vger.kernel.org, Adrian Hunter , Ananth N Mavinakayanahalli , Borislav Petkov , David Ahern , Davidlohr Bueso , Deng-Cheng Zhu , Don Zickus , Frederic Weisbecker , Hemant Kumar , Jiri Olsa , Masami Hiramatsu , "Naveen N . Rao" , Peter Zijlstra , Ralf Baechle , Stephane Eranian Subject: Re: [GIT PULL 00/30] perf/core improvements and fixes Message-ID: <20150511140626.GL28183@kernel.org> References: <1431118602-5877-1-git-send-email-acme@kernel.org> <20150511050939.GA1630@sejong> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150511050939.GA1630@sejong> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Mon, May 11, 2015 at 02:09:39PM +0900, Namhyung Kim escreveu: > Hi Arnaldo, > > I'm seeing a segfault on 'perf report' with a large data file after > applying thread refcount change - it happens regardless of the atomic > operation. Any specific 'perf record' command line? Does it take a long time to reproduce? Any backtraces? I'll try to repro, its possible that we're doing one too many thread__put()... - Arnaldo