My ongoing experiences with Ubuntu, and later Mythbuntu, as a media center with MythTV. I'm also using the system for a virtual machine server, a mediawiki server and a general all around home infrastructure base.

Sunday, March 29, 2009

host clock rate changes again

Updated April 16, 2009: And the answer is running 'vmware-config.pl', which I did recently after a kernel update, causes the 'host.useFastClock = FALSE' line to disappear from /etc/vmware/config.

Original post follows...

Argh, once again my syslog on my VMWare server was getting filled up with host clock rate change messages:
# tail /var/log/syslog
Mar 29 08:31:46 casey kernel: [1894820.064260] [925]: host clock rate change request 54 -> 58
Mar 29 08:31:57 casey kernel: [1894831.040153] [925]: host clock rate change request 58 -> 24
Mar 29 08:31:57 casey kernel: [1894831.040272] [925]: host clock rate change request 24 -> 54
Mar 29 08:31:59 casey kernel: [1894832.676158] [925]: host clock rate change request 54 -> 58
Once again "host.useFastClock = FALSE" was missing from /etc/vmware/config

Once again, I added it and restarted vmware (/etc/init.d/vmware restart).

Once again, this cleared up the problem.

I decided to add a daily check for this line to try and figure out why it disappears:
# vi check-vmware-config
# cat /etc/cron.daily/check-vmware-config
#!/bin/sh
grep "useFastClock" /etc/vmware/config > /dev/null
if test $? -ne 0 ; then
echo "WARNING: useFastClock line not found in /etc/vmware/config"
fi
# chmod +x /etc/cron.daily/check-vmware-config
Nothing to do now but sit back and wait....
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