From owner-freebsd-questions  Thu Dec  5 14:31: 0 2002
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 6A60037B401
	for <freebsd-questions@freebsd.org>; Thu,  5 Dec 2002 14:30:59 -0800 (PST)
Received: from mail.bcpl.net (mail.bcpl.net [204.255.212.10])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 8180343EBE
	for <freebsd-questions@freebsd.org>; Thu,  5 Dec 2002 14:30:58 -0800 (PST)
	(envelope-from ken22@bcpl.net)
Received: from abitl.local (ppp517.bcpl.net [208.242.126.99])
	by mail.bcpl.net (8.11.3/8.11.3) with ESMTP id gB5MUs906973
	for <freebsd-questions@freebsd.org>; Thu, 5 Dec 2002 17:30:56 -0500 (EST)
X-Mailer: emacs 21.2.1 (via feedmail 8 I);
	VM 7.07 under Emacs 21.2.1
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Message-ID: <15855.54343.831941.773946@abitl.local>
Date: Thu, 5 Dec 2002 17:33:43 -0500
From: ken22@bcpl.net
To: freebsd-questions@freebsd.org
Subject: 4.7-RELEASE Fatal trap 12 when NIC receives packet; irq conflict
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-questions.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-questions>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-questions>
X-Loop: FreeBSD.ORG

I upgraded my system from 4.6-RC2 to 4.7-RELEASE and now every
ethernet packet I receive crashes the system with fatal trap 12:
supervisor read, page not present.  This did not happen with 4.6.

This is how I know:
When I ping another computer, I immediately crash.  
When another computer pings me, I immediately crash.  
When I ping localhost, it works as expected, no crash.

The following excerpt from dmesg shows that my NIC and graphic
card are both assigned irq 11.  I am guessing this is the
problem.

  pci1: <ATI model 5144 graphics accelerator> at 0.0 irq 11
  vr0: <VIA VT3043 Rhine I 10/100BaseTX> port 0xd800-0xd87f mem 0xef100000-0xef10007f irq 11 at device 16.0 on pci0
  miibus0: <MII bus> on vr0
  amphy0: <DM9101 10/100 media interface> on miibus0
  amphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

Is there any way to influence the irq selection?  
Can I do this without compiling a kernel?

-Ken Jackson


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message