Messages in this thread | | | Subject | RE: Dual core Athlons and unsynced TSCs | From | Lee Revell <> | Date | Fri, 13 Jan 2006 20:27:18 -0500 |
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On Fri, 2006-01-13 at 17:23 -0800, john stultz wrote: > 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.
OK so the last question is how do we make sure the kernel uses the clock=pmtmr behavior by default on those machines?
Lee
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