From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gleb Natapov Subject: Re: kernel 3.10.1 - "NMI received for unknown reason" Date: Fri, 26 Jul 2013 21:39:10 +0300 Message-ID: <20130726183910.GC3482@redhat.com> References: <51F2BF0F.5060404@sp.consulting.lsexperts.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kvm@vger.kernel.org To: Stefan Pietsch Return-path: Received: from mx1.redhat.com ([209.132.183.28]:21276 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751094Ab3GZSjP (ORCPT ); Fri, 26 Jul 2013 14:39:15 -0400 Content-Disposition: inline In-Reply-To: <51F2BF0F.5060404@sp.consulting.lsexperts.de> Sender: kvm-owner@vger.kernel.org List-ID: On Fri, Jul 26, 2013 at 08:25:19PM +0200, Stefan Pietsch wrote: > Hi all, > > starting a virtual machine (Debian sid) with KVM on my host running > kernel 3.10.1 (Debian 3.10-1-686-pae) produces these messages: > Are those messages printed by a host or a guest? > [ 765.522920] Uhhuh. NMI received for unknown reason 31 on CPU 0. > [ 765.522927] Do you have a strange power saving mode enabled? > [ 765.522930] Dazed and confused, but trying to continue > [ 770.487732] Uhhuh. NMI received for unknown reason 21 on CPU 0. > [ 770.487740] Do you have a strange power saving mode enabled? > [ 770.487742] Dazed and confused, but trying to continue > [ 846.340966] Uhhuh. NMI received for unknown reason 31 on CPU 1. > [ 846.340973] Do you have a strange power saving mode enabled? > [ 846.340976] Dazed and confused, but trying to continue > [ 847.563023] Uhhuh. NMI received for unknown reason 31 on CPU 0. > [ 847.563029] Do you have a strange power saving mode enabled? > [ 847.563032] Dazed and confused, but trying to continue > > I can disable the messages (echo 0 > /proc/sys/kernel/nmi_watchdog) and > the host and the virtual machine are running as usual. > > > Host CPU: Intel(R) Core(TM) Duo CPU L2400 > -- Gleb.