RE: Dual core Athlons and unsynced TSCs

john stultz
2006-01-14T01:23:45Z

On Fri, 2006-01-13 at 20:14 -0500, Lee Revell wrote:
> On Fri, 2006-01-13 at 20:10 -0500, Steven Rostedt wrote:
> >
> > Thanks, I'll add that to my list of tests too.
> >
> > Oh and 2.6.15 passed as well (with clock=pmtmr)
>
> It really seems like it would fail if you gave it enough time due to the
> rdtsc in monotonic_clock()...

Currently monotonic_clock()is only used by the hangcheck-timer, and is
not used by gettimeofday/clock_gettime (even w/ CLOCK_MONOTONIC).

So there may still be an issue there w/ the hangcheck-timer(for x86-64,
on i386 the acpi pm timer can be used for monotonic_clock), but its
doesn't affect the time related userland interfaces.

thanks
-john