Re: Deadlock with Single Threaded Application

"Tom Serface" <>
Sat, 14 Jul 2007 09:15:21 -0700
Are you calling any routines that access hardware or something like windows
sockets or other network things?

Also, could be a memory problem. Usually that would crash the program
rather than hang it, but ...

I doubt that it is random. You probably just haven't discovered the

Do you call any libraries that start their own theads and may be calling
back to you?


"PeterOut" <> wrote in message

I am using MS Visual C++ 6.0 (Professional edition) on Win XP 5.1 SP

I am developing a Windows application that calls vanilla C/C++
classes. I have gone to
Project:Settings:C/C++:Code Generation
and selected
Debug Single-Threaded
Use Run-Time Library

Despite the fact that I use exactly the same code every time, the
program sometimes runs through to completeion w/o any problems and
sometimes hangs in random places. Both of these outcomes occurs both
when I am doing other work on the PC and when I leave the PC with a
single application running. I know that it is hanging when it is
still running long after it usually completes. When I do a
Debug: Break
it is on some random (except usually string related) operation. I set
a breakpoint on the very next line and call Go (F5) but it never gets
there. The output gives me the error message:
BG: Break command failed within 3 seconds.
DBG: Potential deadlock. Soft broken.

OK, so how do I get this with a single-threaded application?

Many thanks in advance for any help,

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