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Re: [Xen-devel] domU time lagging

  • To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>
  • From: "Brian Hays" <brian.hays@xxxxxxxxx>
  • Date: Fri, 24 Feb 2006 09:22:40 -0500
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Fri, 24 Feb 2006 14:23:19 +0000
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Thank you ... Will this cause the domU's to sync their time with the dom0 on an interval basis or solely upon initial creation?


On 2/24/06, Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote:

On 24 Feb 2006, at 13:37, Brian Hays wrote:

> I've noticed that the time inside DomU's begins lagging a few seconds
> behing the host (Dom0) machine. Is there a way to sync the domU times
> with the host server?

Probably you are running ntpd in domain0? You can try adding some code
to the end of set_rtc_mmss() in arch/i386/kernel/time-xen.c (just
before the return statement):

     struct timeval *tv;
     struct timespec *ts;
     ts.ts_sec = tv.tv_sec;
     ts.ts_nsec = tv.tv_usec * 1000;

  -- Keir

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