I had the same problem a few months back, while migrating our email server
to CentOS5 and Zimbra, I just noticed it when i enabled NTP. The same
problem occurred also with my Slackware 12 Software-Raid test server.

I noticed that it only affects my servers running 2.6.x kernels (Slackware
12 defaults now to 2.6.x). My Slackware 11 firewall (2.4.x) don't have the
same problem when NTP is running.

After some googling... :-)

The solution is a parameter in grub and lilo.

CentOS5:
Edit /boot/grub/grub.conf and append clock=pmtmr to  kernel/VolGroup line.

After reading... http://lkml.org/lkml/2006/1/23/366

I tried it on my Slackware 12 server.

Slackware 12:
Edit /etc/lilo.conf and insert below the image = /boot/vmlinuz line:
append = "clocksource=acpi_pm"
It works!

I guess http://lkml.org/lkml/2004/3/27/50 will explain it all :-)

Hope this works for you Thad :-)


-Jaser

On 9/22/07, thad <[EMAIL PROTECTED]> wrote:
>
> On 9/21/07, andrelst <[EMAIL PROTECTED]> wrote:
> > On 9/20/07, thad <[EMAIL PROTECTED]> wrote:
> > > On 9/20/07, andrelst <[EMAIL PROTECTED]> wrote:
> > > > Have seen this problem in vmware virtual machines where linux is a
> > > > guest. The fix is to add a parameter in grub/lilo. Check google if
> > > > there is a fix.
> > >
> > > The box is not set up to host any virtual machine, its a database
> server.
> >
> > too fast typing it... missed a sentence. Still, there is a parameter
> > in grub/lilo.
> > have you tried passing the no_timer_check parameter?
>
> I found some links like this:
>
> http://www.ensode.net/no_timer_check.html
>
> Most are pointing to AMD cpus and but the box I got  have 4  dual core
> Intel Xeon and its behaving the with the same kind of problem. I will
> edit grub but I have to wait for my window maintenance time to do and
> reboot it.
>
> I will also take the oppurtunity to firmware and bios updates.
>
>
> --
> sometimes truth is stranger than fiction
> -bad religion-
> http://www.bloglines.com/blog/mailist
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