Re: [PATCH RFC] x86: hpet: Avoid the readback penalty

From: Borislav Petkov
Date: Thu Sep 16 2010 - 08:27:37 EST


> > On Tue, 14 Sep 2010, tip-bot for Thomas Gleixner wrote:
> > > x86: hpet: Work around hardware stupidity
> >
> > After my brain recovered from yesterdays exposure with the x86 timer
> > horror, I came up with a different solution for this problem, which
> > avoids the readback of the compare register completely. It works
> > nicely on my affected ATI system, but needs some exposure to the other
> > machines.
>
> Will run in on a couple of SBx00 machines I got here.

FWIW, the patch doesn't break my SBx00 mini-farm here. Let me know if
you need more testing done, otherwise:

Tested-by: Borislav Petkov <borislav.petkov@xxxxxxx>

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Boris.

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