Re: System time warping around real time problem - please help

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Tue Mar 25 2003 - 19:13:36 EST


On Tue, 2003-03-25 at 22:55, Fionn Behrens wrote:
> > This all sounds very much like the TSCs are drifting WRT each other.
> > Is it possible that you have some power management code (or hardware)
> > that is slowing one cpu and not the other?
>
> Well, I still don't really know what TSCs actually are (or what TSC
> stands for).
>
> The only suspect in that case would be the amd76x_pm.o kernel module
> which I am admittedly using. It saves about 90Watts of power when the
> machine is idle...

If you are using amd76x_pm boot with "notsc", ditto for that matter
on dual athlons with APM or ACPI in some cases. In fact I wish people
would stop using the tsc for clock timing altogether. It simply doesn't
work on a lot of modern systems

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