From owner-freebsd-stable Tue Feb 11 8: 3:39 2003 Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 86A9C37B401 for ; Tue, 11 Feb 2003 08:03:37 -0800 (PST) Received: from smtpproxy2.mitre.org (smtpproxy2.mitre.org [192.80.55.70]) by mx1.FreeBSD.org (Postfix) with ESMTP id 906C743FA3 for ; Tue, 11 Feb 2003 08:03:36 -0800 (PST) (envelope-from jandrese@mitre.org) Received: from avsrv2.mitre.org (avsrv2.mitre.org [128.29.154.4]) by smtpproxy2.mitre.org (8.11.3/8.11.3) with ESMTP id h1BG3Qa04456; Tue, 11 Feb 2003 11:03:26 -0500 (EST) Received: from MAILHUB2 (mailhub2.mitre.org [129.83.221.18]) by smtpsrv2.mitre.org (8.11.3/8.11.3) with ESMTP id h1BG3OM11201; Tue, 11 Feb 2003 11:03:25 -0500 (EST) Received: from mm112324-2k.mitre.org (128.29.3.65) by mailhub2.mitre.org with SMTP id 1083501; Tue, 11 Feb 2003 11:03:19 -0500 Message-ID: <3E491EC7.3020300@mitre.org> Date: Tue, 11 Feb 2003 11:03:19 -0500 From: Jason Andresen User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.2.1) Gecko/20021130 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Steven Cc: freebsd-stable@freebsd.org Subject: Re: PCI oddity References: <002001c2d186$302725d0$3802a8c0@internal.digitalbastards.net> In-Reply-To: <002001c2d186$302725d0$3802a8c0@internal.digitalbastards.net> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Steven wrote: > I have an abit bx133 board with a similar problem. The box runs linux, but > experienced the same problem in the same place, when it was probing the > drives. I narrowed the problem down to lack of IRQ's. Here's what I did to > work around this: > > Go into the BIOS, disable the Serial and Parallel if you don't need them. > You may also need to set IRQs 3,4,7 to PCI instead of ISA on that board. > Look under the PCI section, if it exists. You should be able to specify > IRQ's for several of the PCI slots, try playing with those. Turn off > Plug'n'Play OS Installed, give it a whirl, or turn it on (I've some some > luck with this on other boxes). I had to turn off PnP OS, specify different > IRQ's for each PCI slot to force them not to share, and have all unused > hardware disabled to free up IRQ's. > > Hopefully this will be of some use to you :) Thanks for the tip, but I've already tried that. I turned off both serial ports and the parallel port and hardwired all of the IRQs down. It didn't help. If there was a card in both the fourth and fifth slot it crashed on probe anyway. Plus I got a lot of stray IRQ7s. This machine isn't all that tight for IRQ space anyway because it has no soundcard or ISA hardware. I think I still have a couple of free IRQs. IIRC, PCI only specifies 4 IRQ lines for the cards though, so you have to share if you have more than 4 PCI slots. Is this correct? I'm still curious if this is a problem with FreeBSD, with my motherboard, or with the Cards themselves. Is it unusual for a card to share nicely? Not one manual for any of my cards even mentions IRQ sharing. -- \ |_ _|__ __|_ \ __| Jason Andresen jandrese@mitre.org |\/ | | | / _| Network and Distributed Systems Engineer _| _|___| _| _|_\___| Office: 703-883-7755 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message