Messages in this thread | | | Date | Thu, 9 Oct 2008 19:20:09 +0200 | From | Pavel Machek <> | Subject | Re: x86_32 tsc/pit and hrtimers |
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Hi!
>> Can you please tell me if this is supposed to work, and I just have a >> poorly configured kernel; or if TSC/PIT drivers were not designed to work >> this way in the first place. If it wasn't designed to do this, do you >> have any tips on implementing this, since I'll be needing to do that? >> > This is not supposed to work, but it might be worthwhile to add a boot > option to force the kernel to trust the TSC, as hardware that lacks any > high-res timers also tends to be primitive enough that the TSC can be > trusted, if it exists. If you patch out the CLOCK_SOURCE_MUST_VERIFY > flag on the TSC, do you get correctly-functioning high-res timers on this > system?
Untrue. Unstable tsc dates back to pentium MMX times.
-- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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