Return to BSD News archive
Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.cs.su.oz.au!metro!metro!munnari.OZ.AU!news.ecn.uoknor.edu!news.eng.convex.com!newshost.convex.com!bcm.tmc.edu!pendragon!news.msfc.nasa.gov!newsfeed.internetmci.com!news.mathworks.com!uhog.mit.edu!tau.uac.net!news6.digex.net!news2.digex.net!digex.net!not-for-mail
From: rdd@access4.digex.net (R. D. Davis)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Fatal trap 12 error at boot
Date: 17 May 1996 19:48:53 -0400
Organization: Society for the Obsolescence of Obsolescence
Lines: 47
Message-ID: <4nj395$jad@access4.digex.net>
NNTP-Posting-Host: access4.digex.net
While trying to boot from a newwly created boot floppy, created from
the boot.flp file, I got the following messages:
Field trap 12: page fault while in kernel mode
fault virtual address = 0x0
fault code = supervisor read, page not present
instruction pointer = 0x8:0xf018c82d
code segment = base 0x0, limit 0xfffff, type 0x1b,
DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, 10PL=0
current process = 1 (swapper)
interrupt mask = net tty bio
panic: page fault
Firstly, I'll have to admit that I'm more used to systems other than
these IBM type PCs, and the memory situation, as mentioned below,
doesn't make much sense to me.
The system was manufactured by Hewitt-Rand, uses a 40MHz 80386-DX CPU
from AMD, has 4MB of memory, an Archive floppy tape drive (recognized
as a Conner drive by Freebsd), a floppy drive, Hercules video adapter,
an internal modem with a big chip with the Rockwell brand stamped on
it, and a 162MB IDE hard drive. There's a strange unknown brand
Chinese-made board for the serial port, one of the parallel ports, the
hard drive and the floppy devices.
About the memory: at power on, the AMI BIOS displays 3.nMB extended
and 640K of other memory - however, I count 4 banks of 1MB memory
chips. I also saw a message somewhere about over 300K of shadow RAM,
whatever that is. So, all this appears to add up to 4MB of memory,
and counting the 4 1MB banks of memory, I'm guessing that I've got a
system with enough memory to run FreeBSD... of course, not being all
that familiar with these systems, I could be wrong. (Suns, PDP-11s,
etc. are so much easier to understand :-)
Of the 162MB of disk space, 50MB is used for an MS-DOS partition.
Is the above error due to this system not having enough RAM?
Thanks very much in advance for any information that anyone can
provide about this!
--
R. D. Davis * http://www.access.digex.net/~rdd * Computer Preservationist
PERQ Logic Systems & Unconventional Computer Consulting
divisions of Transpower Industries, Inc. +1 410 744-4900