From:	Tom Sgouros <tomss AT ids DOT net>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Failure during timing-sensitive application...
Date:	Sun, 22 Sep 1996 20:01:11 -0400
Organization:	IDS World Network Internet Access Service, (401) 885-4243
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Can anyone advise me on this?

I am working on an application that controls six or so RS232 devices. They
are connected to the PC through a multiplexer, so there is only one COM
port being accessed. Anyway, it is sitting on the other side of the room
now, happily chunking away at round 7500 or so on my test program.

The problem is this: One time in three (give or take), the program hangs
mysteriously in the first minute of execution. An unexplainable disk
access (i.e. there is no program file access) coincides with the hang. If
it doesn't hang within a minute, it seems to run indefinitely.

I assume that there is some disk swap or another at work here, but I don't
know why the program doesn't just start where it left off. I further
assume that it is because of some error I've made, but I can't find it
yet.

How can I get a traceback from a timing-sensitive program?

Many thanks in advance.

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