On Mon, Feb 07, 2000 at 07:16:44PM +0100, Lunar wrote:
> On lun, 07 fév 2000 18:56:02 Guy McArthur wrote:
> > Can someone explain what ACPI / APIC is?
>
> These 2 things are really different.
>
> ACPI is related to power management, like APM but SMP compatible and
> better.
>
> APIC is a way to adress interrupt to both processors in SMP mode. You
> can see it easily in Linux with cat /proc/interrupts.
> When you use the kernel option "noapic" interrupts occur only on the
> first processor. In the normal way the kernel sends them on both
> processor to balance the load.
>
Could someone post what the error looks like. I have the following in
/var/log/messages several times but not sure if this is what you are talking about.
Thanks,
Garry
Feb 6 10:35:02 Rhea kernel: Processor #0 Pentium(tm) Pro APIC version 17
Feb 6 10:35:02 Rhea kernel: Processor #1 Pentium(tm) Pro APIC version 17
Feb 6 10:35:02 Rhea kernel: I/O APIC #2 Version 17 at 0xFEC00000.
Feb 6 10:35:02 Rhea kernel: mapped APIC to ffffe000 (fee00000)
Feb 6 10:35:02 Rhea kernel: mapped IOAPIC to ffffd000 (fec00000)
Feb 6 10:35:02 Rhea kernel: calibrating APIC timer ...
Feb 6 10:35:02 Rhea kernel: ENABLING IO-APIC IRQs
Feb 6 10:35:02 Rhea kernel: init IO_APIC IRQs
Feb 6 10:35:02 Rhea kernel: IO-APIC pin 0, 9, 10, 11, 17, 20, 21, 22, 23 not
connected.
Feb 6 10:35:02 Rhea kernel: number of IO-APIC registers: 24.
Feb 6 10:35:02 Rhea kernel: testing the IO APIC.......................
Feb 6 10:35:02 Rhea kernel: ....... : physical APIC id: 02
Feb 6 10:35:02 Rhea kernel: ....... : IO APIC version: 0011
Feb 6 10:42:01 Rhea kernel: OEM ID: OEM00000 Product ID: PROD00000000 APIC at:
0xFEE00000
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