Path: utzoo!mnetor!uunet!mcvax!botter!star!ast@cs.vu.nl
From: ast@cs.vu.nl (Andy Tanenbaum)
Newsgroups: comp.os.minix
Subject: I am seeking test program that hangs the system
Message-ID: <664@ast.cs.vu.nl>
Date: 25 Feb 88 22:24:20 GMT
Sender: ast@cs.vu.nl
Reply-To: ast@cs.vu.nl (Andy Tanenbaum)
Organization: VU Informatica, Amsterdam
Lines: 18


It has been pointed out a couple of times that if FS is sending to tty
and an interupt occurs that causes tty to run and try to send to FS, you
get a deadlock.

Can somebody post a nice short little test program that steps on this bug
and hangs the system fairly consistently.  I was planning to investigate it,
but I can't make it happen on my system.

Also, in response to a comment a couple of days ago, the Atari compiler is
not limited to 64K, so if Atari people insist on going beyond the 64K + 64K
limit, that software won't work on the PC.  On the other hand, on a 512K
Atari, one is so tight for physical memory, that people will automatically
be careful.  It is the people with 4 megabyte Mega-STs who will be the 
problem.  Perhaps we will set the initial message of the day to:
  "Small is Beautiful"

Andy Tanenbaum (ast@cs.vu.nl)