Re: bios disables second cpu

Martin J. Bligh (Martin.Bligh@us.ibm.com)
Wed, 24 Oct 2001 19:20:49 -0700

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In reply to: Anton Petrusevich: "bios disables second cpu"

> Something strange is going on. The server in question is dual P-III/850 on
> Intel 440GX+ board. Neither 2.4 nor 2.2 kernel doesn't see second cpu, but some
> APIC error. What's the problem? Here dmesg goes:
...
> Intel MultiProcessor Specification v1.1
> Virtual Wire compatibility mode.
> OEM ID: INTEL Product ID: Lancewood APIC at: 0xFEE00000
> Processor #0 Pentium(tm) Pro APIC version 17
> I/O APIC #1 Version 17 at 0xFEC00000.
> Processors: 1

Looks like your MPS table is lacking. What happens if you do
"phys_cpu_present_map = 3" at the end of smp_read_mpc()
in arch/i386/kernel/mpparse.c ?

Martin.

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