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: Wed, 31 Jul 2013 12:20:12 +0300 Message-ID: <20130731092012.GC7484@redhat.com> References: <51F2BF0F.5060404@sp.consulting.lsexperts.de> <20130726183910.GC3482@redhat.com> <51F6315F.4050205@sp.consulting.lsexperts.de> <20130729091637.GA18009@redhat.com> <51F6D578.5030105@sp.consulting.lsexperts.de> <20130730053134.GG28372@redhat.com> <51F8D469.3050104@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]:8836 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751073Ab3GaJUQ (ORCPT ); Wed, 31 Jul 2013 05:20:16 -0400 Content-Disposition: inline In-Reply-To: <51F8D469.3050104@sp.consulting.lsexperts.de> Sender: kvm-owner@vger.kernel.org List-ID: On Wed, Jul 31, 2013 at 11:10:01AM +0200, Stefan Pietsch wrote: > On 30.07.2013 07:31, Gleb Natapov wrote: > > > What happen if you run perf on your host (perf record -a)? > > Do you see same NMI messages? > > It seems that "perf record -a" triggers some delayed NMI messages. > They appear about 20 or 30 minutes after the command. This seems strange. Definitely strange. KVM guest is not running in parallel, correct? 20, 30 minutes after perf stopped running or it is running all of the time? -- Gleb.