From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eran Rom Subject: Re: guest gettimeofday behavior Date: Mon, 13 Jul 2009 07:55:21 +0000 (UTC) Message-ID: References: <4A4730B9.1090902@redhat.com> <4A49B6A5.4090801@redhat.com> <20090707201216.GA9129@amt.cnet> <20090708115132.GV3528@poweredge.glommer> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from main.gmane.org ([80.91.229.2]:55287 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751366AbZGMHzg (ORCPT ); Mon, 13 Jul 2009 03:55:36 -0400 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1MQGNn-0005sF-Fc for kvm@vger.kernel.org; Mon, 13 Jul 2009 07:55:31 +0000 Received: from nesher3.haifa.il.ibm.com ([192.114.107.4]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 13 Jul 2009 07:55:31 +0000 Received: from eranr by nesher3.haifa.il.ibm.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 13 Jul 2009 07:55:31 +0000 Sender: kvm-owner@vger.kernel.org List-ID: Glauber Costa redhat.com> writes: > > > This was happening with kvmclock back then when it did not handle > > cpu frequency changes. What are the details of the host hw? > > > > Glauber, any clues? > maybe it is exactly that. 2.6.27 is a little bit old, and probably does not > have the fixes. > Tested with 2.6.30 and the problem indeed disappeared. When Host and Guest ran 2.6.27 with kvm-87 (both qemu-kvm and kvm-kmod), the problem persisted. Thus, I am looking for a kernel fix that is not part of KVM, any lead? Am confined to use 2.6.27 Thanks very much, Eran