Re: [Xen-users] domU time out of sync, ntpdate won't update it

[Madison Kelly <linux@xxxxxxxxxxx>]

Iustin Pop wrote:
> On Tue, Dec 08, 2009 at 01:43:16PM -0500, Madison Kelly wrote:
> > Tait Clarridge wrote:
> > > On Tue, 2009-12-08 at 13:03 -0500, Madison Kelly wrote:
> > > > Hi all,
> > > >
> > > >   For some reason probably obvious that I am missing, my domU's
> > > > aren't updating their time properly. On dom0 I can run 'ntpdate
> > > > tick.redhat.com' and it properly changes the clock:
> > > >
> > > > root@vsh02:~# ntpdate tick.redhat.com
> > > >  8 Dec 12:59:44 ntpdate[27362]: step time server 66.187.233.4
> > > > offset -186.959214 sec
> > > > root@vsh02:~# ntpdate tick.redhat.com
> > > >  8 Dec 12:59:51 ntpdate[27365]: adjust time server 66.187.233.4
> > > > offset 0.000176 sec
> > > >
> > > >   When I run the same on a given domU though, it *looks* like
> > > > it's updating, but doesn't actually:
> > > >
> > > > root@sql01:~# ntpdate tick.redhat.com
> > > >  8 Dec 13:10:08 ntpdate[1148]: step time server 66.187.233.4
> > > > offset -655.452750 sec
> > > > root@sql01:~# ntpdate tick.redhat.com
> > > >  8 Dec 13:10:43 ntpdate[1373]: step time server 66.187.233.4
> > > > offset -655.457543 sec
> > > >
> > > >   Notice that it doesn't seem to relate to dom0's skew.
> > > >
> > > >   Any tips?
> > > >
> > > > Thanks!!
> > > >
> > > > Madi
> > > I ran into this problem as well. Once I updated dom0 and
> > > shutdown/started the domU it worked again.
> > Hrm, I need a way to keep the domUs update without a reboot... Did
> > you come across any clues as to what/where the problem was?
> Are you using xen.independent_wallclock = 1 here?
>
> regards,
> iustin
I wasn't, however, from the docs I found on this it looks like the 
domU's should match dom0... If that is the case, why am I seeing a 10+ 
minute skew?
Anyway, I enabled it, undated the time and then disabled it. Maybe it'll 
stay in sync with dom0 now?
Thanks!

Madi

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