Messages in this thread | | | Date | Tue, 5 Apr 2005 14:17:36 -0400 (EDT) | From | Christopher Allen Wing <> | Subject | Re: clock runs at double speed on x86_64 system w/ATI RS200 chipset (with APIC enabled) |
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I booted with 'apic=debug' in case this is useful to find out what's wrong.
dmesg of 2.6.11.6 with ACPI enabled, APIC enabled, 'apic=debug':
http://www-personal.engin.umich.edu/~wingc/apictimer/dmesg/dmesg-2.6.11.6-acpi-apicdebug (clock runs at double speed)
dmesg of 2.6.11.6 with ACPI enabled, but disabled for PCI routing, APIC enabled ('pci=noacpi apic=debug'):
http://www-personal.engin.umich.edu/~wingc/apictimer/dmesg/dmesg-2.6.11.6-nopciacpi-apicdebug (system hangs when loading SATA driver)
One difference I see between ACPI IRQ routing and 'pci=noacpi' is this:
(with ACPI IRQ routing) ..TIMER: vector=0x31 pin1=2 pin2=-1
(with 'pci=noacpi') ..TIMER: vector=0x31 pin1=2 pin2=0
so it would seem that mp_irqs[] differs between the ACPI case and 'pci=noacpi' for mp_ExtINT.
-Chris wingc@engin.umich.edu
On Tue, 5 Apr 2005, Andi Kleen wrote:
> Alternatively you can try to boot with noapic. Does that help? > > -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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