Re: multiple PCI interrupts

Alan Cox (iialan@iifeak.swan.ac.uk)
Mon, 3 Jul 1995 11:37:15 +0100 (BST)

> Moral of the story: "just don't do it, then". If drivers want to share
> interrupts, that's fine, but they have to know that if they request a
> fast interrupt it can't be shared with a slow one (it's debatable if
> it's even a good idea to share two fast interrupts, but at least that
> makes some kind of sense).

>From a user perspective its better to get slow performance than confused. The
human end configuration of this lot could easily be pretty unworkable. At
least

IRQ 9 is used by both fast and slow handlers. Rejumper one of the devices on
this interrupt if possible.

is

a) user friendly
b) works if you just cannot get rid of your clash
c) lets you get the machine up and running.

Alan