From owner-freebsd-current Tue Jul 22 11:41:27 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id LAA18189 for current-outgoing; Tue, 22 Jul 1997 11:41:27 -0700 (PDT) Received: from phaeton.artisoft.com (phaeton.Artisoft.COM [198.17.250.50]) by hub.freebsd.org (8.8.5/8.8.5) with SMTP id LAA18177 for ; Tue, 22 Jul 1997 11:41:22 -0700 (PDT) Received: (from terry@localhost) by phaeton.artisoft.com (8.6.11/8.6.9) id LAA13737; Tue, 22 Jul 1997 11:35:28 -0700 From: Terry Lambert Message-Id: <199707221835.LAA13737@phaeton.artisoft.com> Subject: Re: I am contemplating the following change... To: msmith@atrad.adelaide.edu.au (Michael Smith) Date: Tue, 22 Jul 1997 11:35:27 -0700 (MST) Cc: louie@TransSys.COM, msmith@atrad.adelaide.edu.au, imp@rover.village.org, sef@kithrup.com, current@FreeBSD.ORG In-Reply-To: <199707220217.LAA26051@genesis.atrad.adelaide.edu.au> from "Michael Smith" at Jul 22, 97 11:47:51 am X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > > Back in the days when I ran 4.[23]BSD on my VAX 11/750, the autoconfig > > code planted trap catchers in all the likely interrupts vectors. All > > you had to do was poke at the device being probed enough to cause an > > interrupt, any interrupt. I don't seem to recall configuring > > interrupt vectors in my kernel config, and the good thing about UNIBUS > > peripherals is that you weren't likely to run out of interrupts. > > > > Or am I just dreaming this? > > No, you're not dreaming it. > > But ISA is not Unibus. Specifically: o Not all cards will be on different interrupts o Not all cards can be non-destructively "poked" o IRQ 7 is a grabage interrupt that can't be distinguished between an error and a "poke" Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.