*BSD News Article 34554


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From: jaitken@csugrad.cs.vt.edu (Jeff Aitken)
Newsgroups: comp.os.386bsd.misc
Subject: Crash!  Bang...  Oops
Date: 18 Aug 1994 21:29:56 -0400
Organization: Virginia Tech Computer Science Dept, Blacksburg, VA
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I'm not sure what happened here, but I'll summarize as best I can:

I moved recently (back to school).  Everything worked fine before I
packed up.

Once I got to school, I added 8MB of RAM (to bring my total to 16MB)

Then I booted FreeBSD, and everything seemed to work ok

Then I booted DOS, and things started to go haywire.  First, himem
started complaining about memory being bad.  Well, OK, lets run a memory
exerciser on it.  I assume FreeBSD has one, so I attempt to boot it.  I
get something like this 

Automatic reboot in progress

/dev/rwd1a 
/dev/rwd1e

pid 30: rm: exit on signal 11

seg fault - core dumped

pid 4: sh: exit on signal 11

Then I reboot, and there's a rm.core and sh.core file in /  (I booted
into single user, BTW, because /dev/rwd1a was modified).  I try to rm
rm.core.  System crashes, tries to sync disks (and fails), then dumps a
memory image.  It then tries to reboot, but now cannot find /dev/wd1a.
I cannot fsck it manually because fsck is not on the bootable floppy!
(Or if it is I cannot find it)  When I try to mount either /dev/wd1a or
/dev/wd1e, I get "/dev/wd1x on /mnt: Bogus super block"

Hmmn, looks like the crash was a good one.  I yanked the extra 8MB of
memory, and get the same results.  Does anyone have any idea what I can
do to remedy this, other than re-install everything?  I really don't
want to reconfigure everything.  I forget, does the installation muck
with /usr?  Or does it just create a usable / ??

Thanks!

Jeff
-- 
Jeff Aitken
jaitken@vt.edu