> I've got a 1U 2.0 Ghz P4 rackmount server with an i845 chipset and have
> noticed some strange issues with the timer. For the most part it keeps
> time perfectly... but pretty often (tens of times each day) it'll have
> drifted anything from a few seconds to a few minutes - during a 10 minute
> period. It's always behind-time - so perhaps this is something to do with
> the P4's throttling stuff? Has anyone else seen similar?
The throttle is not supposed to affect the TSC, and only takes affect
when overheating.
> I tried to use 2.5.7-dj2 with Zwane Mwaikambo's thermal LVT support in
> there but it didn't detect a local APIC on bootup (!) - I'm guessing there
> needs to be an APIC for Zwane's stuff? When I tried to switch back to
-dj2 P4 thermal patch is a bit broken (my bad), but the fact that it
doesn't detect an APIC means that code would, erm do interesting things...
Zwane
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