From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933188AbXCELra (ORCPT ); Mon, 5 Mar 2007 06:47:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933193AbXCELr3 (ORCPT ); Mon, 5 Mar 2007 06:47:29 -0500 Received: from ug-out-1314.google.com ([66.249.92.173]:53070 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933188AbXCELr3 (ORCPT ); Mon, 5 Mar 2007 06:47:29 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=TGQbznmFOOiy2lfINA8YNhRPY9yKtJBAmk2yrZh/eJ4XuSsN5UrtA0j4dPoBbilTDmTv9wiIZ566PYRPs3DqjT8Q2zR+DDMTIrNuSMIIwR2azf1a2lIs6NA1oX39ZplyClxnyiwmKcm7LTN/bf4Qls8bupfRGItU3HoI8KS31KE= Message-ID: <6bffcb0e0703050347j5169c672g19996d5c76707123@mail.gmail.com> Date: Mon, 5 Mar 2007 12:47:26 +0100 From: "Michal Piotrowski" To: "Ingo Molnar" Subject: Re: 2.6.21-rc2-git3 soft lockup detected on CPU#0 (crash dump kernel) Cc: "Thomas Gleixner" , LKML In-Reply-To: <20070305103141.GA18404@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <1173018209.24738.135.camel@localhost.localdomain> <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> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 05/03/07, Ingo Molnar wrote: > > * Thomas Gleixner wrote: > > > > shouldnt that be 'R' instead of the question mark? > > > > ? are dead ones, > > ok. > > > The interesting part is here: > > > > 1 lock held by udevd/918: > > #0: (&mm->mmap_sem){----}, at: [] do_page_fault+0x150/0x50d > > > > But udevd/918 is nowhere in the sysrq-t output. > > 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 Regards, Michal -- Michal K. K. Piotrowski LTG - Linux Testers Group (PL) (http://www.stardust.webpages.pl/ltg/) LTG - Linux Testers Group (EN) (http://www.stardust.webpages.pl/linux_testers_group_en/)