On Wed, 18 Oct 2006, Andi Kleen wrote:
> It wouldn't work on dual core laptop chipsets which support C3 and where
> the APIC timer stops during C3.
> I had a apicrunsmaintimer option for some time on x86-64 but it broke
> on a few other non laptop machines for unknown reasons too, so I cannot
> really recommend it.
So they managed to break it too? Oh well...
If you look at early APIC documentation, then you'll see how the APIC
timers were recommended to be the only source of the clock tick for SMP
systems in favour to the old-fashioned PIT. Now, how can it be used if it
does not run all the time?...
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