Re: [Xen-users] Time went backwards in domU after migration (also after just save/restore)

[Takeshi Sone <ts1@xxxxxxxxxx>]

Enabling HPET on both hosts didn't help either.

Also I found that the same error occurs when I just save domU, reboot 
dom0, and restore domU.

Takeshi Sone wrote:
> I changed the BIOS setting so both hosts use 1.193MHz PIT,
> but it didn't get fixed.
> Takeshi Sone wrote:
> > Hello gurus,
> >
> > I have two physical xen hosts and when I migrate a domU from one host 
> > to another, I get many of this error from domU kernel:
> > clocksource/0: Time went backwards: delta=-3536123661 
> > shadow=686019823475 offset=281887188
> > Sometimes domU time stalls and network stops working, but other times it
> > gets working again.
> >
> > The two hosts are using different platform timer source:
> >
> > root@xen1test:~# xm dmesg|grep -i timer
> > (XEN) Platform timer is 14.318MHz HPET
> >
> > root@xen2:~# xm dmesg|grep -i timer
> > (XEN) Platform timer is 1.193MHz PIT
> >
> > Both hosts use Ubuntu Gutsy (latest as of today) packaged version of Xen
> > 3.1.0, Linux 2.6.22 (on both dom0 and domU).
> >
> > Dom0s are working flawlessly.
> >
> > Thanks in advance,
> > Takeshi
> >
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-users
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users