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From: de@dcs.glasgow.ac.uk (Dr David England)
Newsgroups: comp.lang.smalltalk
Subject: Re: More trouble using st80 V2.5 with SunOS 4.1.1
Message-ID: <1991Apr26.102426.11524@dcs.glasgow.ac.uk>
Date: 26 Apr 91 10:24:26 GMT
References: <1991Apr25.153146.9522@irisa.fr>
Organization: Glasgow University Computing Science Dept.
Lines: 31

boissier@irisa.fr (franck boissiere) writes:
>I have some more trouble using Smalltalk80 Version 2.5 since I upgraded
>to SunOS 4.1.1 !
>Every so often Smalltalk hangs and fail to respond, you can get its 
>attention back by hitting the Stop key. It sometimes happens quite
>frequently and is really annoying.

We had the same problem and here's shell script we were given to solve
this.

#! /bin/sh
#
#   This script periodically sends a wake-up signal
#   to the Smalltalk process to prevent it from hanging.
#   It is a hack to overcome a bug in SunOS 4.1.
#
st80 $* &               # essential to run in background
exec > /dev/null 2>&1   # suppress useless warnings
while kill -IO $!       # repeat until st80 quits
do
   sleep 5              # wakeup every 5 seconds
done
exit

Dave

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