Re: Broken APIC detection 2.4.10?

From: Dave Jones (
Date: Sun Sep 30 2001 - 07:41:28 EST

On Sun, 30 Sep 2001, Mikael Pettersson wrote:

> >I just switched up to 2.4.10 on my Sony Vaio N505VX.
> >Local APIC disabled by BIOS -- reenabling.
> >Could not enable APIC!

> 2.4.10 merged code from 2.4-ac which (in some .configs) will attempt
> to enable the CPU's local APIC. The boot message above is printed if
> your CPU doesn't have one.

I have a Vaio Z600TEK (Same CPU iirc as above Vaio), and also get
that message. The thing is, I'm not entirely sure the mobile P3 has
a fully working APIC.

When I tried to get oprofile to work on it, I eventually gave up,
as reading certain registers returned nonsense. Some seem ok, but
others (like the version field return -1).



| Dave Jones.
| SuSE Labs

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