Messages in this thread |  | | Subject | Re: Activating APIC on single processor | From | David Huggins-Daines <> | Date | 28 Dec 2000 12:15:45 -0500 |
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<fpieraut@casi.polymtl.ca> writes:
> I activate APIC interruption with the configuration of linux kernel > 2.4.0test-11. In the linux kernel configuration under processor type and > features I activate "APIC and IO-APIC support on uniprocessor", and I > desactivate "Symmetric multi-processing support". The only way I found to > check APIC activation is looking into /proc/interrupts, no "IO-APIC" can > be found there. So I read IO-APIC.txt and I suppose there sould be > conflicts with IRQ of my PCI cards. So I remove all my PCI cards and still > have no APIC interrupt. > Is there another way to check APIC activation? > Am-I doing to right things to activate IO-APIC?
You might not actually have an IO-APIC or even a local APIC. This is the case with the Mobile PIII for instance (I puzzled over this myself for a long time).
To find out for sure, run:
grep 'flags.*apic' /proc/cpuinfo
-- David Huggins-Daines - dhd@eradicator.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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