From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Tokarev Subject: Re: slow linux guest time: off by 7sec/hour Date: Wed, 25 Nov 2009 19:54:15 +0300 Message-ID: <4B0D6137.8020409@msgid.tls.msk.ru> References: <4B0D259F.1020109@msgid.tls.msk.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: KVM list Return-path: Received: from isrv.corpit.ru ([81.13.33.159]:53174 "EHLO isrv.corpit.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752974AbZKYQyL (ORCPT ); Wed, 25 Nov 2009 11:54:11 -0500 In-Reply-To: <4B0D259F.1020109@msgid.tls.msk.ru> Sender: kvm-owner@vger.kernel.org List-ID: Michael Tokarev wrote: > I'm havin yet another fancy prob with time in guests. > It never happened before so far, but now it is like > this for quite some time. > > Here's the result of hourly ntpdate invocation on one > of the guests, other guests shows very similar results: > > Nov 25 06:17:09 isrv ntpdate[24713]: step time server 192.168.1.15 offset 7.851828 sec ..... Ok, this is a 100% false alarm. The problem was on the host, the machine apparently has broken clock, to the extent when ntpd wasn't able to keep up with it and was forced to step it every so often. After installing adjtimex on the host, which offered adjustment of 209 sec/day, everything went to normal again. These time issues are driving me nuts ;) Thanks! /mjt