Re: i860 Chipset and Hyper-Threading Processors

From: Zwane Mwaikambo (
Date: Thu May 02 2002 - 11:56:37 EST

On Thu, 2 May 2002, Alan Cox wrote:

> > BIOS bug, IO-APIC#0 ID 2 is already used!...
> > ... fixing up to 4. (tell your hw vendor)
> > ...changing IO-APIC physical APIC ID to 4 ... ok.
> The BIOS booted up with two devices having the same device ID. Thats a bit
> naughty but I don't think its technically a violation of the MP 1.4 spec
> merely very dumb 8). Linux renumbered it for you

Just a few questions, the logical CPUs don't go through the same boot up
sequence (BIST etc) too do they? So they don't really exist when the
physical CPUs are doing power on setup. If thats the case, then do the
physical CPUs fill in the MP table info for their siblings?

        Zwane "it-doesnt-take-much-to-confuse-me" Mwaikambo


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