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    SubjectRe: PCI init issues
    On Tue, 4 Mar 2003, Ron Arts wrote:

    > > 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

    How about using 'mptable' (Authored by Pete Zaitcev) to view the
    bus,pin and ioapic layout? It showed all the INTA,B,C,D pins on a
    troublesome system of mine and helped track down the problem.

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