Re: SMP anomaly ??? (Was: problems with aic7xxx with 2.1.x)

Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 21 Nov 1997 22:06:58 +0000 (GMT)

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> > Processor #0 Pentium(tm) APIC version 16
> > Processor #1 Pentium(tm) APIC version 16
> > Processor #2 Pentium(tm) APIC version 16
> > Processor #4 Pentium(tm) APIC version 16
> > I/O APIC #14 Version 17 at 0xFEC00000.
> > Processors: 4
> [boot sequence snap]
>
> Okay. What is this ? It is an ix86 SMP machine with 4 processors. What we
> can see is that the numbering sequence of processors is 0, 1, 2 and ... 4 !
> Why the fourth processor is not numbered 3 ?

Oh thats quite normal. Nothing says the processors will be numbered 0,1,2,3
neatly. Having CPU's 0 and 3 on a 2CPU SMP box is common

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