From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933981Ab1ETPR0 (ORCPT ); Fri, 20 May 2011 11:17:26 -0400 Received: from www.linutronix.de ([62.245.132.108]:36571 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932590Ab1ETPRZ (ORCPT ); Fri, 20 May 2011 11:17:25 -0400 Date: Fri, 20 May 2011 17:17:23 +0200 (CEST) From: Thomas Gleixner To: Justin Piszcz cc: linux-kernel@vger.kernel.org, Alan Piszcz Subject: Re: 2.6.39: crash w/threadirqs option enabled In-Reply-To: Message-ID: References: User-Agent: Alpine 2.02 (LFD 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 20 May 2011, Justin Piszcz wrote: > On Fri, 20 May 2011, Thomas Gleixner wrote: > > Does it crash right away or just when doing something particular? > It crashed at 2100, this is when I run a few I/O intensive processes: > - backup (dump ext4 filesystem -> to a separate raid device) > - backup (dump ext4 on remote host -> to separate raid device) > - backup (dump xfs on remote host -> to separate raid device) > > This looks like it is what caused it to crash. That narrows it down somewhat, but does not give us a clue at all :( > > Is the box fully dead after the crash ? > The host was online and I went away for awhile, when I came back the system > had rebooted on its own (as I lost all of my X windows/etc). Hmm. Did you have panic_timeout set ? Thanks, tglx