[mdlug] Clocks

[Joe Doehler]

Carl T. Miller wrote:
> Joe Doehler wrote:
>...
>
>> That was it! I had to change the clock source. I edited grub.conf to
>> make the change stick across reboots. Thanks.
>>
>> All that's left for me to is to tell the system to stop messing with the
>> hardware clock during shutdowns, so that ntpd can do its job properly.
> 
> Joe, this is the first I've heard of this.  What clock
> source were you using before and what did you change it to?
>...

There are three clock sources available on my system, called "pit", 
"jiffies" and "tsc". I found them following Ron's post. The installation 
program selected "pit", that seems to be the preferred one when using 
"VMware". I changed it to "tsc", and the system clock is now tracking 
the hardware clock. "jiffies" had the same problem. I have no idea what 
the difference is between them. I expect that ntps will now be able to 
handle hardware clock drifts.

Joe.