From owner-freebsd-bugs  Fri Feb 16  7:30: 9 2001
Delivered-To: freebsd-bugs@hub.freebsd.org
Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21])
	by hub.freebsd.org (Postfix) with ESMTP id 417FE37B684
	for <freebsd-bugs@hub.freebsd.org>; Fri, 16 Feb 2001 07:30:01 -0800 (PST)
Received: (from gnats@localhost)
	by freefall.freebsd.org (8.11.1/8.11.1) id f1GFU1d16940;
	Fri, 16 Feb 2001 07:30:01 -0800 (PST)
	(envelope-from gnats)
Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21])
	by hub.freebsd.org (Postfix) with ESMTP id C7B0B37B401
	for <freebsd-gnats-submit@FreeBSD.org>; Fri, 16 Feb 2001 07:21:30 -0800 (PST)
Received: (from nobody@localhost)
	by freefall.freebsd.org (8.11.1/8.11.1) id f1GFLUj16104;
	Fri, 16 Feb 2001 07:21:30 -0800 (PST)
	(envelope-from nobody)
Message-Id: <200102161521.f1GFLUj16104@freefall.freebsd.org>
Date: Fri, 16 Feb 2001 07:21:30 -0800 (PST)
From: lenz@heitec.net
To: freebsd-gnats-submit@FreeBSD.org
X-Send-Pr-Version: www-1.0
Subject: kern/25136: Fatal trap 12: page fault while in kernel mode
Sender: owner-freebsd-bugs@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.org


>Number:         25136
>Category:       kern
>Synopsis:       Fatal trap 12: page fault while in kernel mode
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Feb 16 07:30:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Lenz Gschwendtner
>Release:        4.2 Stable after jaunary 2000
>Organization:
>Environment:
FreeBSD tashi 4.2-STABLE FreeBSD 4.2-STABLE #1: Fri Feb 16 09:25:39 CET 2001
lenz@heitec.net:/usr/src/sys/compile/TASHI  i386
>Description:
Since i've updated my system yesterday from 4.2 Stable january 31. my 
Adaptec 3940auw(Dual Channel / Bios Ver. 2.11.0) causes a fatal trap 12 while booting.
if the Controller is not in the system, or i replace it with another
Adaptec Controller(2940uw tested) there is no problem. also with the
old kernel i can boot without problem. We tested finally with an IDE hd
and no scsi devices connected to the controller.
in the kernel script the following stuff is defined:
- pci
- ahc
- da
- scbus
- pass

the trap message is:

fault virtual address   = 0x123
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc012de26
stack pointer           = 0x10:0xc0293a8c
frame pointer           = 0x10:0xc0293ab4
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 0 (swapper)
interrupt mask          = cam
trap number             = 12
panic: page fault

all this happens when normally this message is shown:
waiting 2 seconds for SCSI devices to settle
>How-To-Repeat:
put a Adaptec 3940auw controller in your system, update and reboot
>Fix:
use an other controller :(

>Release-Note:
>Audit-Trail:
>Unformatted:


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