Messages in this thread | | | From | "Charles Martin" <> | Subject | RE: interrupts across PCI bridge(s) not handled | Date | Mon, 3 Nov 2003 14:46:57 -0700 |
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> > Hmm.. > > The MP tables mention IRQ's up to 51, but no further. > > But the PIRQ routing tables talk about irqs 92-95 for bus 6. > > It really looks like the IRQ routing entries are just broken. One > potential fix is to enable ACPI, and hope that the ACPI irq > routing isn't > as broken as the PIRQ stuff. > > Other than that I don't see anything we can do. Anybody else? > > Linus >
I enabled ACPI, and the interrupts are now assigned correctly, and in the range of 48-51:
CPU0 CPU1
48: 878 389 IO-APIC-level piraq 49: 923 336 IO-APIC-level piraq 50: 17239 838 IO-APIC-level ioc2, piraq 51: 879 404 IO-APIC-level piraq
They are now getting handled properly, i.e. I am receiveing interrupts from the boards located in the backplane extender. This is with 2.4.22.
I didn't realize that ACPI is related to interrupt management as well as power control. Is there any downside to using ACPI?
Thanks, Charlie
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