On Sun, 2004-05-09 at 22:16, Brown, Len wrote:
> ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 10 11 12 14 15) *9
...
> Didn't see it in your .JPG dmesg, but I expect this was there:
> 
> ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 15
> 
> and probably that set IRQ15 to level/low which killed IDE.
> 
> Please try the attached patch which disables the sanity
> check above.
> 
> Also might be interesting to see what happens on this system
> if it is booted (without the patch) with "acpi_irq_balance"

Better yet, here's a proposd fix.  Please give it a whirl.

The curve ball was that "illegal" IRQ9.
Its "illegalness" caused us to grab a new IRQ off the possible list,
but since it wasn't zero, we didn't scrub the new IRQ with our
usual heuristics for selecting ISA range IRQs.

I expect this will assign sound to IRQ10 or IRQ11.

thanks,
-Len