RE: Athlon64 + MSI = Problems with APIC

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I had the same time drift issue.  I have an Athlon64 X2 chip and an
MSI-7100.  It seems that the default system timer detection in newer
kernels has changed.  After searching the net, I found that adding the
option  clock=pmtmr to the /boot/grub/grub.conf for the kernel you are
loading solves the problem (at least with my motherboard).  A code
sample from my system is below:

default=0
timeout=10
splashimage=(hd0,1)/grub/splash.xpm.gz
hiddenmenu
title Fedora Core (2.6.14-1.1644_FC4smp)
  root (hd0,1)
  kernel /vmlinuz-2.6.14-1.1644_FC4smp ro root=/dev/VolGroup00/LogVol00
rhgb clock=pmtmr quiet
  initrd /initrd-2.6.14-1.1644_FC4smp.img


> -----Original Message-----
> From: Steven Ringwald [mailto:asric@xxxxxxxxx]
> Sent: Monday, December 12, 2005 1:45 PM
> To: For users of Fedora Core releases
> Subject: Athlon64 + MSI = Problems with APIC
> 
> Hello All!
> 
> I am using an AMD Athlon64 and the MSI-7145 MB. The entry in
> /proc/cpuinfo identifies it as an AMD Sempron Processor 2800+. The
bios
> on the MSI motherboard has been flashed to the latest version I could
> find (1.4).
> 
> I have installed two kernels on this box, the SMP and the UP kernel.
The
> reasoning behind the SMP is so that I can get APIC functionality.
> 
> When the SMP kernel is running, I get constant rtc_mmss warnings on
the
> console, and the time drifts forward at a rather quick rate (even with
> ntpd running).
> 
> I was wondering if anyone had seen/solved anything like this before,
or
> if possibly a different motherboard is the solution. (I would like to
> keep with the Athlon64, if I can).
> 
> Thanks in advance!
> Steve
> 
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