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SubjectRe: [PATCH] linux-2.4.22-pre3_clear-smi-fix_A0
On 7 Jul 2003, john stultz wrote:

> Some of our more recent hardware requires that SMIs are routed through
> the IOAPIC, thus when we clear_IO_APIC() at boot time, we clear the BIOS
> initialized SMI pin. This basically clobbers the SMI, which can cause
> problems with console redirection as well keeping us from being able to
> transition into full ACPI mode.

That should be appropriately marked in the MP-table -- is it? I think
clear_IO_APIC() should use the MP-table to select pins marked as mp_INT
(and possibly mp_ExtINT) only. This way all special inputs are preserved.

Your solution looks like a good hack for working around a broken
MP-table, but then a big fat warning should be printed about a BIOS bug.

--
+ Maciej W. Rozycki, Technical University of Gdansk, Poland +
+--------------------------------------------------------------+
+ e-mail: macro@ds2.pg.gda.pl, PGP key available +

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