Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759844Ab2FARyx (ORCPT ); Fri, 1 Jun 2012 13:54:53 -0400 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:54259 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752924Ab2FARyw (ORCPT ); Fri, 1 Jun 2012 13:54:52 -0400 Date: Fri, 1 Jun 2012 10:52:59 -0700 From: Zachary Landau To: Namhyung Kim CC: Arnaldo Carvalho de Melo , Peter Zijlstra , Paul Mackerras , Ingo Molnar , Namhyung Kim , LKML , Sunjin Yang Subject: Re: [PATCH/RFC 2/2] perf tools: Check callchain is corrupted Message-ID: <20120601175259.GB11806@dev4103.snc6.facebook.com> References: <1338443007-24857-1-git-send-email-namhyung.kim@lge.com> <1338443007-24857-2-git-send-email-namhyung.kim@lge.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <1338443007-24857-2-git-send-email-namhyung.kim@lge.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Originating-IP: [192.168.18.252] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.6.7580,1.0.260,0.0.0000 definitions=2012-06-01_05:2012-05-21,2012-06-01,1970-01-01 signatures=0 X-Proofpoint-Spam-Reason: safe Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 712 Lines: 17 On Thu, May 31, 2012 at 02:43:27PM +0900, Namhyung Kim wrote: > We faced segmentation fault on perf top -G at very high sampling > rate due to a corrupted callchain. While the root cause was not > revealed (I failed to figure it out), this patch tries to protect > us from the segfault on such cases. > > Reported-by: Arnaldo Carvalho de Melo > Signed-off-by: Namhyung Kim Acked-by: Zachary Landau - Zack -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/