RE: [BUG?] Xeon with HyperThreading and linux-2.4.20-rc2

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Wed Nov 20 2002 - 11:55:24 EST


On Wed, 2002-11-20 at 16:00, Steffen Persvold wrote:
> On Wed, 20 Nov 2002, Nakajima, Jun wrote:
>
> > As Hugh pointed out, the MPS table should report the physical processors
> > only even if HT is enabled. The major reason is to support legacy OSes that
> > don't support HT well. If the BIOS has an option for you to enable/disable
> > HT, then please use it.
>
> But since my BIOS reports 4 CPU's in the MPS table (with HT enabled), I
> guess the BIOS is doing something wrong ? Should I report this to the
> vendor ?

Im not sure about "wrong". Unusual perhaps. Nothing in the MPS spec
prohibits this that I can see

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