Re: 2.6.7-bk way too fast

From: Vojtech Pavlik
Date: Mon Jun 21 2004 - 03:28:53 EST


On Sun, Jun 20, 2004 at 11:29:04PM -0400, Ricky Beam wrote:
> On Sun, 20 Jun 2004, Jeff Garzik wrote:
> >Something is definitely screwy with the latest -bk.
>
> I'm not seeing any troubles...
>
> [root:pts/11{4}]spork:~/[11:26 PM]:uname -a
> Linux spork.troz.com 2.6.7-SMP+BK@xxxxxx #15 SMP BK[20040618194307] Fri Jun
> 18 15:56:38 EDT 2004 x86_64 x86_64 x86_64 GNU/Linux
>
> time.c: Using 1.193182 MHz PIT timer.
>
> >My guess would be someone broke HPET, but maybe not judging from other
> >lkml reports.
>
> It could be. All my systems have an HPET enabled kernel, but none of them
> are actually reporting HPET as a timing source.

x86-64 has a different HPET driver than i386. And HPET is only used when
present in the machine (so far only AMD chipsets), _and_ reported by the
ACPI BIOS. Which is rather uncommon.

--
Vojtech Pavlik
SuSE Labs, SuSE CR
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