Re: [ACPI] IO-APIC on MS-6163 (2.4.23). ACPI?

[Mikael Pettersson]

Ryan Underwood writes:
 > 
 > Attached dmesg and interrupts with acpi=off.  Also attached kernel
 > config.
 > 
 > As you see, it acknowledges a local APIC but mentions nothing about
 > IO-APIC.  So I guess this isn't ACPI issue after all.  But, I wonder why
 > the IO-APIC isn't being used on this board anymore.  There was a
 > blacklist entry for it, but it was removed after it was discovered to be
 > in error.

Your dmesg log doesn't mention any MP-table. With neither ACPI MADT
nor an MP-table the kernel has no way of knowing about any I/O-APIC.

You do have UP_IOAPIC enabled, so the kernel should look for it.
Please check your BIOS settings, and try with no ACPI at all in the kernel
(just to verify that acpi=off doesn't prevent MP-table parsing).

/Mikael
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