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SubjectRe: 48GB NUMA-Q boots, with major IO-APIC hassles
On Sat, 18 Jan 2003, William Lee Irwin III wrote:

> Okay, and here is my latest attempt to deal with the issue (which is
> dirty as sin code-wise, but nm that... I'm trying to debug this).
>
> This doesn't actually work, I end up deadlocking presumably because
> everything's waiting for an interrupt that's been dropped at some point.

> +int vector_to_irq[MAX_NUMNODES][FIRST_SYSTEM_VECTOR - FIRST_DEVICE_VECTOR + 1];

This can never work by looking at the I/O interrupt section of your MP
table you're overwriting interrupt gates. Therefore this has the
unfortunate effect of invalidating the rest of the patch.

Consider this; If you have irq 8 on both ioapic0 and ioapic3 who gets the
vector setup in the IDT?

Zwane
--
function.linuxpower.ca


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