From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: clock drift in Xen 4.0.0 Date: Tue, 25 May 2010 07:55:16 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: James Harper , "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org On 25/05/2010 07:50, "James Harper" wrote: > Are there any known problems with clock drift in Xen 4.0.0? One DomU > with an uptime of 49 days is now 7 minutes in front. I never noticed the > problem before I upgraded. > > /proc/sys/xen/independent_wallclock=0 Are you running NTP? 100ppm drift isn't unbelievable without external synchronisation. -- Keir > James > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel