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SubjectRe: Help enabling PCI interrupts on Dell/SMP and Sun/SMP systems.
> Alan> 	kernel: SSE: Found a DeCypher card.  kernel: ACPI: PCI
> Alan> interrupt 0000:13:03.0[A] -> GSI 36 (level, low) -> IRQ 217
> If ACPI has set this device up to use interrupt 217, why are you
> registering it on IRQ 5?


Maybe that's it.

I ask the card which interrupt line it was given at boot-time:

pci_read_config_byte(dev, PCI_INTERRUPT_LINE,

Then I request an IRQ:

request_irq(softp->interrupt_line, sseintr,
SA_INTERRUPT, "sse", softp);

I don't know who exactly is assigning IRQ 217, and I don't know
where I could read that value.

Are you suggesting I should call request_irq(217, sseintr,
SA_INTERRUPT, "sse", softp);

Maybe you are on to the problem.

I found out that if I boot with "pci-noapic" that everyting
works on the Sun machine!!!


- Alan Kilian <kilian(at)>

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