From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: why guests show "Clocksource tsc unstable" on bootup? Date: Sun, 15 Mar 2009 15:31:25 +0200 Message-ID: <49BD032D.80004@redhat.com> References: <49B5050B.9050204@wpkg.org> <49BCFB0D.2000901@redhat.com> <49BCFD43.9010604@wpkg.org> <49BD00A6.20400@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: "kvm@vger.kernel.org" , Michael Tokarev To: Tomasz Chmielewski Return-path: Received: from mx2.redhat.com ([66.187.237.31]:42112 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752061AbZCONbh (ORCPT ); Sun, 15 Mar 2009 09:31:37 -0400 In-Reply-To: <49BD00A6.20400@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Avi Kivity wrote: > > This cpu indeed has unstable tsc, but disabling cpufreq should have > fixed it. > > Maybe we need to disable C-states as well? > > Can you try idle=poll on the host kernel command line? Note that this will run the cpu hot, so remove it after the test. -- error compiling committee.c: too many arguments to function