From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933194AbXCEL7o (ORCPT ); Mon, 5 Mar 2007 06:59:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933236AbXCEL7n (ORCPT ); Mon, 5 Mar 2007 06:59:43 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:33878 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933194AbXCEL7n (ORCPT ); Mon, 5 Mar 2007 06:59:43 -0500 Date: Mon, 5 Mar 2007 12:51:11 +0100 From: Ingo Molnar To: Michal Piotrowski Cc: Thomas Gleixner , LKML Subject: Re: 2.6.21-rc2-git3 soft lockup detected on CPU#0 (crash dump kernel) Message-ID: <20070305115111.GA10675@elte.hu> References: <1173022668.24738.141.camel@localhost.localdomain> <6bffcb0e0703040828j46a339c2ofabf7c0e20f6ae09@mail.gmail.com> <1173026442.24738.143.camel@localhost.localdomain> <6bffcb0e0703040847g1c04940bm4c22895ec2540bd1@mail.gmail.com> <1173027823.24738.156.camel@localhost.localdomain> <6bffcb0e0703040915h442b4d6cq8bb47cd961165916@mail.gmail.com> <20070305080824.GA20583@elte.hu> <1173090869.24738.198.camel@localhost.localdomain> <20070305103141.GA18404@elte.hu> <6bffcb0e0703050347j5169c672g19996d5c76707123@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6bffcb0e0703050347j5169c672g19996d5c76707123@mail.gmail.com> User-Agent: Mutt/1.4.2.2i X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.0.3 -2.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Michal Piotrowski wrote: > >also below is a softlockup-debug patch that might be useful, which adds > >a tick/tock output so it spams the console once per second but can show > >the dynamics of lockups (and other delays). > > I have applied this patch > http://www.stardust.webpages.pl/files/tbf/bitis-gabonica/2.6.21-rc2-git3-kdump/log3.txt thanks. It seems that the 'BUG: soft lockup detected' message does not occur in this log though - and that there are bootup messages between the two sysrq outputs: [ 221.101833] skge eth1: disabling interface [ 228.740911] audit(1173094442.943:11): user pid=3245 uid=0 auid=4294967295 subj=system_u:system_r:hwclock_t:s0 msg='changing system time: exe="/sbin/hwclock" (hostname=?, addr=?, terminal=console res=success)' [ 233.148571] md: md1 in immediate safe mode plus there's trouble with irq 10: [ 132.013194] irq 10: nobody cared (try booting with the "irqpoll" option) [ 132.072771] Disabling IRQ #10 that prompted you to enable irqpoll, right? So am i right that without irqpoll there's no lockup? Ingo