From owner-freebsd-hackers Sat Nov 16 04:46:57 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id EAA27804 for hackers-outgoing; Sat, 16 Nov 1996 04:46:57 -0800 (PST) Received: from godzilla.zeta.org.au (godzilla.zeta.org.au [203.2.228.19]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id EAA27799; Sat, 16 Nov 1996 04:46:41 -0800 (PST) Received: (from bde@localhost) by godzilla.zeta.org.au (8.7.6/8.6.9) id XAA17993; Sat, 16 Nov 1996 23:42:50 +1100 Date: Sat, 16 Nov 1996 23:42:50 +1100 From: Bruce Evans Message-Id: <199611161242.XAA17993@godzilla.zeta.org.au> To: mrcpu@cdsnet.net, se@FreeBSD.org Subject: Re: IRQ sharing on PCI? Cc: hackers@FreeBSD.org Sender: owner-hackers@FreeBSD.org X-Loop: FreeBSD.org Precedence: bulk >> None of my other Pentiums do it, they all get different IRQ's. > >This depends on the PCI BIOS, which is free >to assign any IRQ to any PCI Int line. >PCI requires shared interrupts to work, since >there are far less real interrupt request >inputs in a typical system, than independent >PCI Int lines. Doesn't a typical system have only 3 or 4 PCI slots and many more than 3 or 4 IRQs, so it is hard to run out of IRQs? Mine has 3 PCI slots, all full (:-(), and they get assigned irqs 10, 11 and 12 (one wasted for vga0). Bruce