Re: aic7xxx and 2.4.3 failures - fix, it is interrupt routing

From: Gérard Roudier (groudier@club-internet.fr)
Date: Tue Apr 10 2001 - 10:13:03 EST


On Mon, 9 Apr 2001, Jim Studt wrote:

> G*rard Roudier insightfully opined..
> > Looks like an IRQ problem to me.
> > I mean the kernel wants to change IRQ routing and just do the wrong job.
>
> Give the man a prize!
>
> After failing to work with 2.4.0, 2.4.1, 2.4.3, and 2.4.3-ac3 I
> enabled X86_UP_IOAPIC to stir up the interrupt code and it works.
>
> I'll keep one of these servers set aside for testing and see if I can't
> figure out a little more specifically what the problem is, but IOAPIC
> is fine.

Probably because the code that messes with IRQs isn't involved when IOAPIC
is used. If I had to guess I would point "arch/i386/kernel/pci-irq.c",
function "pcibios_lookup_irq()".

  Gérard.

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This archive was generated by hypermail 2b29 : Sun Apr 15 2001 - 21:00:14 EST