Re: AMD X2 unsynced TSC fix?

Lee Revell
2006-10-27T22:08:22Z

On Fri, 2006-10-27 at 15:48 -0600, Chris Friesen wrote:
> Lee Revell wrote:
>
> > What exactly does that AMD patch do?
>
> "...by periodically adjusting the core time-stamp-counters, so that they
> are synchronized."
>
> It sounds like they just periodically write a new value to the TSC.
> Presumably they set the "slower" one equal to the "faster" one.
>
> You'd likely still have windows where time might run backwards, but it
> would be better than nothing.

The patch also apparently changes boot params to make the OS use the
ACPI PM timer, so it must not be a complete solution.

Lee