From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757733Ab1ANRJR (ORCPT ); Fri, 14 Jan 2011 12:09:17 -0500 Received: from sj-iport-3.cisco.com ([171.71.176.72]:24205 "EHLO sj-iport-3.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752043Ab1ANRJH (ORCPT ); Fri, 14 Jan 2011 12:09:07 -0500 Authentication-Results: sj-iport-3.cisco.com; dkim=neutral (message not signed) header.i=none X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvsEAHISME2rR7Ht/2dsb2JhbACkVnOiLphmhU8EhGuGK4Mi Message-ID: <4D308331.6010106@cisco.com> Date: Fri, 14 Jan 2011 10:09:05 -0700 From: David Ahern User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101209 Fedora/3.1.7-0.35.b3pre.fc13 Lightning/1.0b3pre Thunderbird/3.1.7 MIME-Version: 1.0 To: Thomas Renninger CC: Frederic Weisbecker , Arnaldo Carvalho de Melo , Ingo Molnar , linux-perf-users@vger.kernel.org, LKML Subject: Re: perf timechart broken References: <201101071104.37576.trenn@suse.de> <201101110955.37560.trenn@suse.de> <4D2CA7D6.2070203@cisco.com> <201101141800.18913.trenn@suse.de> In-Reply-To: <201101141800.18913.trenn@suse.de> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/14/11 10:00, Thomas Renninger wrote: >> http://www.mail-archive.com/linux-perf- > users@vger.kernel.org/msg00057.html > Looks slightly different, the segfault should happen in: > process_sample_event > But looks very much related, possibly it has not been made/make with > DEBUG=1 > and -O6 was added and the backtrace is not 100% correct? perf was built with DEBUG=1; that's how I got the pretty backtrace versus having the arguments optimized out. The cpu=6291457 is the garbage causing the segfault (there are only 2 cores in the system). 6291457 = 0x600001. Perhaps a mask is missing? David > > I still did not have time to send it out, will do so on Mo. > > Thomas