Re: [RFT] major libata update

Jeff Garzik
2006-05-17T23:48:38Z

Linus Torvalds wrote:
> In particular, I have this pretty strong memory that we tried to do
> something like this a long time ago, and it caused problems at least
> with the legacy ISA/ATA interrupts (irq 14/15).
>
> On the other hand, my memory is pretty damn bad at times, and besides, I
> hope that that "hardcoded" case just above it is the one that takes care
> of the old ATA interrupts. This is one of those times when the only
> guaranteed right thing to do would be to be bug-for-bug compatible with
> whatever crud MS-Win does..

Many BIOS ACPI tables from years ago simply _assumed_ that you have
hardcoded irq 14/15, even... Their irq descriptors for 14/15 would be
absent or completely non-functional.

Or maybe its the $pirq table I'm recalling. One of the two, anyway.

Jeff