Re: Help enabling PCI interrupts on Dell/SMP and Sun/SMP systems.

[Alan Kilian <kilian@bobodyne.com>]

> 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?
> 

    Peter,

	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,
	                     &softp->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

-- 
- Alan Kilian <kilian(at)bobodyne.com>