From: Tom Sgouros 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 Lines: 24 Message-ID: NNTP-Posting-Host: conan.ids.net Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII 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. --------------------------------------------------------------------- tomss AT ids DOT net - 401-861-2831 - 42 Forge Road, Potowomut, RI 02818 USA