RE: [Xen-users] NTP time issues DomU's

[andrew mathes <amathes@xxxxxxxxxxxx>]

any idea why all my DomU's were exactly the same offset wrong from my DomO 
then?
I agree, it is great if it works ... but if it's off for some reason, i'd 
like to be able to fix it.  (otherwise i may as well use windows ...)
On Fri, 13 May 2005, Tim Durack wrote:

> I think it's perfect the way it is.
>
> Run NTP in dom0, all the domU's then have synchronized time.
>
> I can still set timezones on all of these boxes independantly.
> Timezone has nothing to do with NTP synchronization.
>
> Tim:>
>
>
> > yeah, i'm already doing that, I was just saying, it *seemed*
> > like they were getting their time from domain0, and weren't
> > actually changing their own clocks in accordance with syncing
> > with the same ntpd server.
> > especially since they're all off by exactly the same amount
> > ... and running ntpdate doesn't seem to have any effect whatsoever?
> If you don't run ntp in the domU's, it should just work.
>
> If you want to run ntp in the domU, try:
> echo 1 > /proc/sys/xen/independent_wallclock
>
> I guess we could be smarter about this, and make the wall clock
> independent automatically if someone does an adjtimex syscall. Anyone
> got any comments on this?
>
> Ian
>
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