[CLOSED][Xen-users] Sometimes xen-Clocksource in DomU

[Fabian Zimmermann <xen-users@xxxxxxxxxxxxxxxxx>]

Hi,
> Even xen.org Dom0 = xen.org DomU is not enabling xen-clocksource. Is 
> xen as clocksource obsolete, or is there something strange happening?
So, after reading some code and asking google about some functions I 
think there was never a "xen"-clocksource in xen.org-kernels. It looks 
like it's only in patched kernels like Lenny. ( 
http://lists.xensource.com/archives/html/xen-devel/2007-03/msg00242.html )
I found "clocksource_register(&clocksource_xen);" in 2.6.26 (Lenny) and 
2.6.29, but there is no "xen" clocksource in 2.6.18-6-xen (Etch) and 
2.6.18.8 (xen.org).
So, back to beginning...

If somebody has hints/answers to the following questions:

Dom0 is updating Xens clock every minute, isn't it?

When will DomU "reread" the clock out of Xen?

Why is cron/clock going crazy in high-load-situations, if I run 
ntpd-service on DomU and set independent_wallclock=1?
Thanks,

Fabian





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