From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932617Ab1IHMa1 (ORCPT ); Thu, 8 Sep 2011 08:30:27 -0400 Received: from server655-han.de-nserver.de ([85.158.177.45]:51430 "EHLO server655-han.de-nserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932400Ab1IHMaZ (ORCPT ); Thu, 8 Sep 2011 08:30:25 -0400 Message-ID: <4E68B561.4090106@profihost.ag> Date: Thu, 08 Sep 2011 14:30:25 +0200 From: Stefan Priebe - Profihost AG User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.18) Gecko/20110617 Thunderbird/3.1.11 MIME-Version: 1.0 To: LKML Subject: Re: system freezing with 3.0.4 References: <4E68B484.4090204@profihost.ag> In-Reply-To: <4E68B484.4090204@profihost.ag> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-User-Auth: Auth by hostmaster@profihost.com through 85.158.179.66 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Please CC me - i'm not on list. Sorry that i forgot to mention this. Am 08.09.2011 14:26, schrieb Stefan Priebe - Profihost AG: > Hi list, > > we've updated some systems from 2.6.32 to 3.0.4 (renamed to 2.6.40.4 for > comp. reasons) kernel. Since then we're expecting freezes every now and > then. All in memory apps are still working but nothing which reads or > writes from or to disk (it seems to me like that). > > If you're already conncted via ssh and running top suddenly idle is > 99-100% and loads goes up to 500. > > Luckily i was able to trigger a sysrq on one machine fast enough: > echo t >/proc/sysrq-trigger > > sysrq output is attached > > I hope somebody can help. > > Stefan