From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754441Ab1LNO24 (ORCPT ); Wed, 14 Dec 2011 09:28:56 -0500 Received: from mx1.redhat.com ([209.132.183.28]:41867 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750978Ab1LNO2y (ORCPT ); Wed, 14 Dec 2011 09:28:54 -0500 Message-ID: <4EE8B2A1.8060603@redhat.com> Date: Wed, 14 Dec 2011 16:28:49 +0200 From: Avi Kivity User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111115 Thunderbird/8.0 MIME-Version: 1.0 To: Nate Custer CC: Marcelo Tosatti , kvm@vger.kernel.org, linux-kernel , Jens Axboe Subject: Re: kvm deadlock References: <54FC5923-2123-4BDD-A506-EA57DCE0C1F6@cpanel.net> <20111214122511.GD18317@amt.cnet> <4EE8A7ED.7060703@redhat.com> <20111214140027.GF18317@amt.cnet> <4EE8AC88.1040205@redhat.com> <20111214140612.GG18317@amt.cnet> <7E2A4D2C-68BD-47E8-8079-37AE152D77B4@cpanel.net> In-Reply-To: <7E2A4D2C-68BD-47E8-8079-37AE152D77B4@cpanel.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/14/2011 04:17 PM, Nate Custer wrote: > On Dec 14, 2011, at 8:06 AM, Marcelo Tosatti wrote: > > I don't know. Its a hang ? It could be memory corruption (of the timer > > olist) instead of a bogus NMI actually, the second. > > > What is pasted in the second paste is what came scrolling across the console right before the end of all responsiveness. It came from a dmesg dump, the next dmesg command was not accepted via ssh and the console attached showed the same stack trace. At that point the system refused to respond to any direct keyboard input, including the SysRq commands that I expected to work after a core dump. > > The issue happened with two servers (same hardware, same build group so there is a chance of a bad hardware batch). Switching to an older kernel/kvm setup in RHEL 6.2 has corrected the issue, which suggests a software issue to me. > If you can, please set up netconsole, which should give us complete dmesg captures. -- error compiling committee.c: too many arguments to function