From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lucas Meneghel Rodrigues Subject: Re: VMs crashing - Ubuntu 8.04, KVM84, libvirt 0.6.1 Date: Fri, 22 Jan 2010 11:12:12 -0200 Message-ID: <1264165932.3985.16.camel@localhost.localdomain> References: <141202443.974971264159574685.JavaMail.root@mail.thehumanjourney.net> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org, kirkland@canonical.com To: Yann Hamon Return-path: Received: from mx1.redhat.com ([209.132.183.28]:4517 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751476Ab0AVNMT (ORCPT ); Fri, 22 Jan 2010 08:12:19 -0500 In-Reply-To: <141202443.974971264159574685.JavaMail.root@mail.thehumanjourney.net> Sender: kvm-owner@vger.kernel.org List-ID: On Fri, 2010-01-22 at 11:26 +0000, Yann Hamon wrote: > Hello list, > > I am using Ubuntu 8.04 with the kvm84 and libvirt 0.6.1 backports. I am experiencing regular crashes of my Vms - well, more like "freezes" than actual crashes. This is how it looks like: http://waste.mandragor.org/kvmcpu/munin.html > > * The VM keeps running > * The number of LOC IRQs goes down to 0, as well as the number of context switches > * The number of processes gradually grows > * The weird thing: some processes that were running before the crash keep running, but won't be able to fork (as you can see the munin-node continues to work) > > This is bothering me a lot and I have absolutely no idea how to fix it or work around it. > Has this been experienced by anyone else, and/or fixed in a later version of KVM? I saw your blog post yesterday speaking about it. Unfortunately I don't have much experience with kvm under Ubuntu, so you might want to talk to Dustin, Ubuntu's maintainer of KVM. I saw some replies to your blog post suggesting you to use Dustin's PPA, have you tried to do that? I am copying Dustin on the message. As I said, I am not very knowledgeable with Ubuntu, but perhaps you should try a newer KVM build? kvm-84 is kinda... old :) A backport of a more current codebase to 8.04 could be a good idea.