[CentOS] CentOs 5.6 and Time Sync

Thu Apr 14 11:28:31 UTC 2011
Simon Matter <simon.matter at invoca.ch>

> On 4/14/2011 6:47 AM, Johnny Hughes wrote:
>> Is it really true that the time is working perfectly with one of the
>> other kernels (the older ones)?
>     Johnny,
>        Yes, As long as I run the older 5.5 kernel my time is perfect.
> All clients can get from this machine with no issues. As soon as I run
> new kernel, or Plus kernel for that matter. The time goes downhill.
> "Uphill actually"
>      To answer the previous question I do have the HW clock set to utc,
> Everything is stock from initial install of the package.

Did you check dmesg which timer is being used (I think it can also be seen
somewhere in /proc but I don't remember). If it's hpet, you could try to
disable it. That was for i686: 'hpet=disable' and for x86_64: 'nohpet',
don't know how it is with current kernels.