Andy Tucker wrote:
> On 3/6/06, Roland Mainz <[EMAIL PROTECTED]> wrote:
> > I'm hitting some problems with Solaris guest installations in VMware
> > (e.g. Solaris being the guest in a VMware VM):
> > Sometimes the clock is going out-of-sync. I configured "xntpd" to
> > counteract these issues - but suddenly at one point all hell breaks
> > loose:
> ...
>
> Generally configuring ntp in a guest doesn't work well due since ntpd
> gets confused by the unstable nature of time in a VM (particularly if
> the host is busy) and gives up.
AFAIK in my example the kernel itself gave up ("genunix: [ID 982299
kern.warning] WARNING: Time of Day clock error: reason [Changed in Clock
Rate]. -- Stopped
tracking Time Of Day clock.") and xntpd simply didn't sync the time
anymore - which was very weired (due lack of a message by the deamon
that it didn't care anymore) ...
BTW: A workaround for the "Stopped tracking Time Of Day clock."-issue
may be to add a
-- snip --
set tod_validate_enable=0
-- snip --
in /etc/system (I am testing this right now).
> The better solution is to run ntp on
> the host and configure the guest tools to keep time in sync with the
> host. Unfortunately guest tools aren't available for Solaris - but
> that should be getting fixed soon.
It may be much better to think about getting VMware itself running on
top of Solaris x86 (e.g. Solaris x86 as host OS) - then I wouldn't have
to fight Linux on the laptop anymore... :-)
> In the meantime, you could run
> ntpdate or rdate out of a cron job to keep time roughly in sync.
Ok... but I think we need a general solution for Solaris (both x86 (for
XEN/VMWare/etc.) and SPARC (for sun4v&co.)) since stuff like XEN or PC
emulators such es "bochs" and "qemu" generate similar issues...
> See also: http://www.vmware.com/pdf/vmware_timekeeping.pdf
Thanks! :-)
----
Bye,
Roland
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