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

[andrew mathes <amathes@xxxxxxxxxxxx>]

anyone know where I should set this so that it stays "1" after reboot? 
I'm not sure the best way to do this ...
thanks a bunch

On Thu, 12 May 2005, andrew mathes wrote:

> yes, changing this value allowed domU independent syncing, thank you very 
> much!!
> i agree on the config file option if possible ...
>
> On Thu, 12 May 2005, Tupshin Harper wrote:
>
> >  Ian Pratt wrote:
> >
> > > 
> > > 
> > > 
> > > 
> > > >  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
> > > 
> > > 
> > >
> >  Don't auto-detect based on adjtimex. It would be too easy and too
> >  confusing to accidentally make such a call once, and then not realize
> >  that you would no longer be auto-synchronized.
> >
> >  Instead, make independent_wallclock be a config file option that is
> >  overridable by proc.
> >
> >  -Tupshin
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