Path: utzoo!utgpu!cunews!bnrgate!brtph3!brchh104!brchs1!bnr.ca!rice.edu!sun-spots-request
From: garvin@ccvr1.cc.ncsu.edu (Michael Garvin)
Newsgroups: comp.sys.sun
Subject: Serial port problems with Sun 4/280
Keywords: Hardware
Message-ID: <1413@brchh104.bnr.ca>
Date: 22 Jan 91 21:14:06 GMT
Sender: news@brchh104.bnr.ca
Organization: Sun-Spots
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Approved: Sun-Spots@rice.edu
X-Sun-Spots-Digest: Volume 10, Issue 28, message 7
X-Note: Submissions: sun-spots@rice.edu, Admin: sun-spots-request@rice.edu

I've just started administering a Sun 4/280 file server, and I'm
experiencing what people have said to be a persistent problem.  The unit
is a rack-mount system with what I believe is an ALM board (I haven't
figured out the Sun codes yet) with 16 serial ports hooked to it (numbered
0-15, which corresponds to tty00-tty0e).  Every so often, at no
predictible interval, the board will hang and the terminals attached will
be useless.  Killing the getty and re-starting it has no effect; I have to
reboot the machine to get things fixed.  Any ideas?  We're running SunOS
4.0.3.  Thanks for any help.

Michael Garvin - Systems - North Carolina State University Computing Center
NCSU Computing Center                | (919) 737-2517  (8am - 5pm EST/EDT)
2620 Hillsborough Street             | garvin@ncsu.edu (one alias fits all)