Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751638AbaBNG06 (ORCPT ); Fri, 14 Feb 2014 01:26:58 -0500 Received: from smtp3.Stanford.EDU ([171.67.219.83]:54029 "EHLO smtp.stanford.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751089AbaBNG05 (ORCPT ); Fri, 14 Feb 2014 01:26:57 -0500 Message-ID: <52FDB71F.2020000@ccrma.stanford.edu> Date: Thu, 13 Feb 2014 22:26:39 -0800 From: Fernando Lopez-Lezcano User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: Thomas Gleixner CC: nando@ccrma.Stanford.EDU, linux-rt-users , Sebastian Andrzej Siewior , Steven Rostedt , John Kacur , LKML Subject: Re: 3.12.9-rt13: BUG: soft lockup References: <52FBF2F1.8040504@localhost> <52FD4D89.2000207@localhost> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/13/2014 03:55 PM, Thomas Gleixner wrote: > On Thu, 13 Feb 2014, Fernando Lopez-Lezcano wrote: > >> On 02/13/2014 02:25 PM, Thomas Gleixner wrote: >>> On Wed, 12 Feb 2014, Fernando Lopez-Lezcano wrote: >>>> [771508.546449] RIP: 0010:[] [] >>>> smp_call_function_many+0x2ca/0x330 >>> >>> Can you decode the exact location inside of smp_call_function_many via >>> addr2line please ? >> >> Hope this is useful (adding 0x2ce/0x330 as offsets does not make any >> difference, don't know if it should)... >> >> # grep smp_call_function /var/log/messages|tail -1 >> Feb 12 14:18:21 cmn27 kernel: [771840.224419] RIP: 0010:[] >> [] smp_call_function_many+0x2ce/0x330 >> # addr2line -e >> /usr/lib/debug/lib/modules/3.12.10-300.rt15.1.fc20.ccrma.x86_64+rt/vmlinux >> ffffffff810dc60e >> /usr/src/debug/kernel-3.12.fc20.ccrma/linux-3.12.10-300.rt15.1.fc20.ccrma.x86_64/kernel/rtmutex.c:1295 > > I can't see how the kernel decoder thinks it's smp_call_function_many > but addr2line looks at rtmutex.c > > That doesn't make any sense at all. Version mismatch? Indeed, sorry for the mixup... here I go again, hopefully this one will make sense: # addr2line -e /usr/lib/debug/lib/modules/3.12.9-301.rt13.1.fc20.ccrma.x86_64+rt/vmlinux ffffffff810dc60e /usr/src/debug/kernel-3.12.fc20.ccrma/linux-3.12.9-301.rt13.1.fc20.ccrma.x86_64/kernel/smp.c:108 -- Fernando -- 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/