WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [Xen-devel] Xen 3.1.2 domU clock goes out of sync

To: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] Xen 3.1.2 domU clock goes out of sync
From: Tõnu Raitviir <jussuf@xxxxxxxx>
Date: Wed, 21 Nov 2007 14:26:49 +0200 (EET)
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Wed, 21 Nov 2007 04:27:28 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <C3691925.10752%Keir.Fraser@xxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Organization: EENet
References: <C3691925.10752%Keir.Fraser@xxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
On Tue, 20 Nov 2007, Keir Fraser wrote:

Could it not be a drift? e.g., Perhaps you ran ntpdate in dom0 but not the
domUs?

That's possible, probably ntpdate was executed automatically on dom0. Now I did a new test, rebooted dom0 and made sure that no ntp* commands are
run. Results are somewhat different:
# uptime
 14:21:41 up 12:31,  1 user,  load average: 0.00, 0.00, 0.00

dom0    offset -7.190458
domU #1 offset -4.380381
domU #2 offset -4.380430
domU #3 offset -4.380401

So without any ntp interaction dom0 clock is running faster than domU clock and all domU clocks are in sync with each other, but still not with dom0.

Now I'm going to start ntpd again and make sure that it never stops :-)

--
Tõnu Raitviir                           tonu.raitviir@xxxxxxxx
EENet                                   http://www.eenet.ee/
BalticGrid Project                      http://www.balticgrid.org/
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel