3b1 610 terminal interrupts

[John Mundt]

I have been plagued with a problem on two of 6 3b1's I own of having a
user logged off while in the middle of a process for no reason.  A hangup
signal is generated somewhere, somehow, and the process dies and the user
gets a logon message.  

This happens if the only process running is /bin/sh and the user is
not inputting anything.  Another process which traps signals before it
dies identifies the signal is SIGHUP.  It only happens on two computers,
and then only for certain users.  Changing tty lines doesn't help the
problem, but logging in on a different terminal does.

Aha!  Must be the terminal, right?  Had two AT&T techs out with monitoring
equipment to watch the line between terminal and 3b1 and they detected
nothing strange on the line.  

Has anyone else experienced the same problems and found solutions?  
(It is 3.5.1.4 flavor SysV with the ROM chip corrections for the Zilog
chip on the expansion board).

John Mundt
Teachers' Aide, Inc.
..ihnp4!chinet!john or ..ihnp4!chinet!admctr!mundt (but only if you hurry)
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John Mundt   Teachers' Aide, Inc.  P.O. Box 1666  Highland Park, IL
(312) 432-8860	or  998-5007 Voice   (312) 432-5386	Modem