Linux server time getting out of sync frequently.

[bruce]

not sure what to tell you...

have you tried :
One approach to a slow guest clock is to reduce the guest timer interrupt
rate.

In a one-CPU virtual machine, add the following kernel command line
parameters to the guest:
·                 nosmp noapic nolapic
Kernel command line parameters are specified in the /etc/lilo.conf or
/boot/grub/grub.conf file, depending on your choice of boot loader.

http://www.vmware.com/pdf/vmware_timekeeping.pdf





-----Original Message-----
From: redhat-list-bounces at redhat.com
[mailto:redhat-list-bounces at redhat.com]On Behalf Of John Horne
Sent: Tuesday, May 27, 2008 3:25 PM
To: General Red Hat Linux discussion list
Subject: RE: Linux server time getting out of sync frequently.


On Tue, 2008-05-27 at 15:15 -0700, bruce wrote:
> john...
>
> be sure you carefully read the pdf that was provided...
>
> in the situation where i was involved... we had a number of guest linux OS
> boxes running on top of vmware. the boxes would lose serious amounts of
> time... the pdf, and i believe the steps mentioned solved our issues...
>
> but make sure you carefully look over the pdf doc..
>
Yup, already done that. We've had our 'time' problems with vmware for
well over a year now (getting near 2 I should say). As mentioned
initially the only solution we haven't tried is rebuilding the kernel,
the only one we have found that does work is to use ntpdate via cron. I
passed the problem to our people maintaining the ESX servers, and they
contacted vmware about it (we have a support contract). They referred us
to the PDF doc, but as we pointed out the solutions in it still didn't
work. As might be expected, rebuilding the kernel was suggested :-)


John.

--
---------------------------------------------------------------
John Horne, University of Plymouth, UK  Tel: +44 (0)1752 587287
E-mail: John.Horne at plymouth.ac.uk       Fax: +44 (0)1752 587001

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