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xen-devel
Re: [Xen-devel] domU clock over 23s off
On Jul 12, Keir Fraser wrote:
> >- correct startup time (mount time, syslog start time etc), and
> >- working ntp ?
>
> Run ntpd in domain0, and don't use independent_wallclock.
that was my default setup I started with, until yesterday I realized that the
domUs don't keep the time in sync. dom0 (FC4) is perfectly in sync running
ntp.
the domUs run ntp too, but there they don't manage to set/adjust the system
time,
so the ntp on domU logs the time skew. from syslog of a RH9 client:
Jun 26 20:08:25 os-rh9 ntpd[1666]: time reset +12.532031 s
Jun 26 20:24:51 os-rh9 ntpd[1666]: time reset +12.597371 s
Jun 26 20:41:07 os-rh9 ntpd[1666]: time reset +12.761633 s
Jun 26 21:02:54 os-rh9 ntpd[1666]: time reset +12.843185 s
Jun 26 21:19:18 os-rh9 ntpd[1666]: time reset +12.930329 s
Jun 26 21:38:59 os-rh9 ntpd[1666]: time reset +13.028862 s
Jun 26 21:56:19 os-rh9 ntpd[1666]: time reset +13.159422 s
...
Jun 27 20:05:22 os-rh9 ntpd[1666]: time reset +19.513893 s
Jun 27 20:22:37 os-rh9 ntpd[1666]: time reset +19.640442 s
Jun 27 20:37:47 os-rh9 ntpd[1666]: time reset +19.718607 s
Jun 27 20:55:09 os-rh9 ntpd[1666]: time reset +19.769548 s
Jun 27 21:13:31 os-rh9 ntpd[1666]: time reset +19.865546 s
Jun 27 21:30:49 os-rh9 ntpd[1666]: time reset +19.965029 s
does running ntp in a domU disable the clock synchronisation between dom0 and
domU ?
Harald Koenig
--
"I hope to die ___ _____
before I *have* to use Microsoft Word.", 0--,| /OOOOOOO\
Donald E. Knuth, 02-Oct-2001 in Tuebingen. <_/ / /OOOOOOOOOOO\
\ \/OOOOOOOOOOOOOOO\
\ OOOOOOOOOOOOOOOOO|//
Harald Koenig \/\/\/\/\/\/\/\/\/
science+computing ag // / \\ \
koenig@xxxxxxxxxxxxxxxxxxxx ^^^^^ ^^^^^
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