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SubjectRe: PCI init issues
Linus Torvalds wrote:
> On Tue, 4 Mar 2003, Ivan Kokshaysky wrote:
>>Indeed, looks like only pin 0 (INT_A of that card) is connected. :-(
> Well, I'd say it looks like the MP table _claims_ that only pin0 is
> connected. Remember: the claim was that this machine worked on WinXP.
> So there are at least two potential reasons for that:
> - The MP table is simply wrong, and WinXP gets the routing information
> from somewhere else (ie most likely ACPI)
> - The MP table is right, and only pin0 is connected, and WinXP only uses
> pin0 (ie it puts the card in some state where all irqs are shared
> across all of the four tulip chips).
> Maybe somebody can come up with other schenarios.
> It would be interesting to hear what "Device Manager" (or whatever it is
> called) unde WinXP claims the interrupts are on this machine... Are they
> all on irq 48 on XP too? Or has XP gotten magic knowledge somewhere
> (ACPI?) and they are on different irq's?
> Linus

I installed Win 2000 on this machine. It assigned every port its own interrupt,
(IRQ 48-51), but it reported 'device is not functioning properly' on the
first port (IRQ 48).

Ron Arts

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