From nobody  Tue Feb 10 17:17:31 1998
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Date: Tue, 10 Feb 1998 17:17:31 -0800 (PST)
From: wall@montana.avicom.net
To: freebsd-gnats-submit@freebsd.org
Subject: Fatal trap 12: page fault in kernel mode while trying to boot to install
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>Number:         5709
>Category:       kern
>Synopsis:       Fatal trap 12: page fault in kernel mode while trying to boot to install
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Feb 10 17:20:01 PST 1998
>Closed-Date:    Fri Mar 19 04:41:20 PST 1999
>Last-Modified:  Fri Mar 19 04:41:38 PST 1999
>Originator:     Bob Wall
>Release:        2.2.5  (also occurred in 2.2.2)
>Organization:
>Environment:
Can't get the machine to boot to print the environment.  It's a Micron
XPE laptop with docking station (contains an AMD 53C974 SCSI controller
and integrated AMD Ethernet adapter), 64M RAM, 2.1 G IDE hard drive.
>Description:
I'm trying to install FreeBSD 2.2.5 - I created a boot floppy, and when
I try to boot from it, I get the following (whether I skip the kernel
config or not):

avail memory = 61071360 (59640K bytes0
Probing for devices on PCI bus 0:
chip0 <Intel 82437MX mobile PCI cache memory controller> rev 2 on pci0:0
chip1 <Intel 82371MX mobile PCI I/O IDE accelerator (MPIIX)> rev 3 on pci0:1
amd0 <amd 53c974 scsi> rev 2 int a irq 15 on pci0:17

amd0 waiting for devices to settle

Fatal trap 12: page fault while in kernel mode
fault virtual address     = 0x18
fault code                = supervisor read, page not present
instruction pointer       = 0x8:0xf017e09b
stack pointer             = 0x10:0xefbffd54
frame pointer             = 0x10:0xefbffd6c
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 ()
interrupt mask            = net tty bio
panic: page fault


Under version 2.2.2, it wouldn't do this if the laptop was not in the
docking station (so I suspect it is the amd0 driver causing the
problem).  I haven't tried it with 2.2.5 yet.
>How-To-Repeat:
Try to boot using the boot floppy.
>Fix:

>Release-Note:
>Audit-Trail:

From: Tiny <Tiny@earthling.net>
To: freebsd-gnats-submit@freebsd.org, wall@montana.avicom.net
Cc:  Subject: Re: kern/5709: Fatal trap 12: page fault in kernel mode while trying to boot to install
Date: Fri, 24 Apr 1998 01:05:11 -0500

 I get the same thing with 2.2.6 (acer desktop, 80 megs o ram 1.6 gig ide
 harddisk)
 
 All you have to do to repeat it on my machine is try to install the
 bloody os.
 

From: Seejo Pylappan <seejo@apple.com>
To: freebsd-gnats-submit@freebsd.org, wall@montana.avicom.net
Cc:  
Subject: Re: kern/5709: Fatal trap 12: page fault in kernel mode while trying
	to boot to install
Date: Thu, 18 Mar 99 08:28:26 -0500

 Hi,
 	I get the same message when I tried installing it on a Tyan 1564D  
 Dual pentium 200MMX with 96Mb RAM, Adaptec 2940 UW SCSI card, ATI Rage II,  
 4.2 G UW HDD.
 	
 	It comes up after it gives the message
 	
 	Waiting for SCSI devices to settle.
 	
 	Thanks,
 	Seejo
 	
 
State-Changed-From-To: open->closed 
State-Changed-By: sheldonh 
State-Changed-When: Fri Mar 19 04:41:20 PST 1999 
State-Changed-Why:  
Active development on the 2.2 branch is over. 
>Unformatted:
