Re: [Xen-users] Time/clock issues with Xen 3.0.3?

[marek cervenka <cervajs@xxxxxxxxxx>]

On Sat, 25 Nov 2006, Tim Post wrote:
> On Fri, 2006-11-24 at 20:28 +0000, Phillip Mumford wrote:
> > The time appears to be perfect inside dom0, however all the domU's
> > tend to have a slightly faster date which gets further out of sync
> > every day.
> >
> > I'm currently using Xen 3.0.3 with Gentoo Linux, under 3.0.2 I had no
> > problems with domU clocks.  Are there any known issues which could
> > cause this?   I'd strongly prefer not to run ntpd in every domU,
> > having all domU clocks in sync with dom0 is quite important for me.
same problem here (xen 3.0.3 + sched=credit)

> What are the values of /proc/sys/xen/independent_wallclock
> and /proc/sys/xen/permitted_clock_jitter respectively?
DOM0
[root@dom0 ~]# cat /proc/sys/xen/independent_wallclock
0
[root@dom0 ~]# cat /proc/sys/xen/permitted_clock_jitter
10000000

DOMU
[root@domU ~]# cat /proc/sys/xen/independent_wallclock
0
[root@domU ~]# cat /proc/sys/xen/permitted_clock_jitter
10000000

with same hw and xen3.0.2-2 is time ok

---------------------------------------
Marek Cervenka
=======================================


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