Re: AMD 64 system clock speed

From: Tony Breeds
Date: Sat Nov 19 2005 - 18:52:51 EST

On Sat, Nov 19, 2005 at 01:12:26PM -0800, Chris Largret wrote:
> On Fri, 2005-11-18 at 20:01 -0500, jstipins@xxxxxxxxx wrote:
> > Hi there,
> >
> > My earlier question regarding the glibc "make check" nptl/tst-clock2.c
> > failure turns out to be due to my system clock running 3x normal speed.
> >
> > Evidently, this is a known issue with 2.6.x kernels running on AMD 64
> > processors. The "noapic" boot option fixes the clock problem, but disrupts
> > other things... ethernet does work, etc. The solution seems to be using
> > "apci=noirq noapic" as boot options.
> >
> > I am using the kernel, and still need to use those boot parameters.
> > What is the current state of this bug?
> Interestingly, I found out last night that the 2.4.26 kernel can
> recognize both processors in my X2. Unfortunately, it had the same time
> synchronization issues as the newer 2.6.12+ kernels that I have been
> running. It isn't solely related to the new kernel series.

You could also be seeing the same problem outlined in.

Try booting with: acpi_skip_timer_override instead of the other command
line parameters.

Yours Tony ||
Jan 23-28 2006 The Australian Linux Technical Conference!

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