OS problem RedHatx64 on BL25P

[NXS]

Jun 2 03:18:40 testserver Losing some ticks... checking if CPU frequency changed.
Jun 2 03:18:40 testserver warning: many lost ticks.
Jun 2 03:18:40 testserver Your time source seems to be instable or some driver is hogging interupts

I have an HP BL25P server with 4 GB ram a dual core AMD processor an RedHatS4.3 64 bit installed and I get alot of these messages.
I have installed the the PSP 7.51. Anyone any ideas?

Thanks Koen

[Mike Stroyan]

The lost ticks could be due to using the TSC timer and enabling powernow throttling that slows down the CPU and the TSC timer on idle CPUs.
You will want to add the boot parameter "clock=pmtmr" as described at
http://h18004.www1.hp.com/products/servers/linux/powernow-notes.html#rhel4u2x86

(That note applies to update 2 and later.)

[Alan_152]

Are you doing a regular timesync against an NTP server somewhere?