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From: Robert Eckardt <re@ghost.mep.ruhr-uni-bochum.de>
Message-Id: <199607280815.KAA08000@ghost.mep.ruhr-uni-bochum.de>
Subject: repeated bus errors on sh
To: questions@freebsd.org
Date: Sun, 28 Jul 1996 10:15:36 +0200 (MET DST)
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Hi,

a short time ago I observed a strange behaviour on my system at home
(2.1R, 16MB RAM):
Suddenly, the console started logging
Jul 28 02:15:01 ghost /kernel: pid 7495: sh: uid 0: exited on signal 10
Jul 28 02:20:00 ghost /kernel: pid 7498: sh: uid 0: exited on signal 10
[..]
Jul 28 02:31:05 ghost /kernel: pid 7523: sh: uid 100: exited on signal 10

It happened only when starting sh -- bash, ps, ls worked fine.
Swap space looked at that time:
Device      1K-blocks     Used    Avail Capacity  Type
/dev/wd0s2b     25832    20928     4840    81%    Interleaved
/dev/sd0s2b     27648    21044     6540    76%    Interleaved
/dev/sd1s3b     27648    20792     6792    75%    Interleaved
Total           80936    62764    18172    78%

(The machine was/is up for 3 days, had netscape, emacs, ctwm, and several
color_xterms running (all about since 3 days))

After exiting (just from the menu -- no kill) netscape,
sh worked like ever and wap looked like
Device      1K-blocks     Used    Avail Capacity  Type
/dev/wd0s2b     25832    16924     8844    66%    Interleaved
/dev/sd0s2b     27648    17112    10472    62%    Interleaved
/dev/sd1s3b     27648    17264    10320    63%    Interleaved
Total           80936    51300    29636    63%

Netscape's running again now and sh still works -- but how can it be
that sh spits bus errors ?  Error in the VM ?  (No read errors on the
hard disks, but how can I _really_ test.)
Any other information on the system (it's still running :-) ?

Robert