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SubjectRe: x86-64: double timer interrupts in recent 2.4.x
On Thu, 17 Jun 2004 10:54:00 +0200 (MEST)
Mikael Pettersson <> wrote:

> On Wed, 16 Jun 2004 16:28:26 -0300, Peter Cordes wrote:
> > I just noticed that on my Opteron cluster, the nodes that are running 64bit
> >kernels have their clocks ticking at double speed. This happens with
> >Linux 2.4.26, and 2.4.27-pre2
> I had the same problem: 2.4 x86-64 kernels ticking the clock
> twice its normal speed, unless I booted with pci=noacpi.
> This got fixed very recently I believe, in a 2.4.27-pre kernel.

In which one exactly? Most likely it was an ACPI problem/fix.
Len, do you remember fixing such an issue?

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