From: Charles Sandmann <sandmann AT clio DOT rice DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: ok under GDB crash under msdos ??
Date: Wed, 24 Jul 2002 11:18:00 CDT
Organization: Rice University, Houston TX
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> I have some code that runs fine when it's executed under GDB, but when I try
> it standalone it GPF's.  Can anyone suggest how to find the error?

1) Symify - it tells you where it crashed; from the contents of the 
registers listed and a little disassembly of that instruction, you
can see which variable had contents causing the problem.
2) Set the crt0 flag to zero all memory - if that helps it's an
uninitialized variable issue.