From: Erik Berglund <erik2 DOT berglund AT telia DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: GPF with system() and clock int.
Lines: 33
Message-ID: <jble5.251$tab.186674688@newsb.telia.net>
Date: Sat, 22 Jul 2000 17:52:15 GMT
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

"Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il> wrote: 
> > 
> > "Charles Sandmann" <sandmann AT clio DOT rice DOT edu> wrote:
> > > 
> > > Try increasing the internal stack size with CWSPARAM.
> > >
> > Thanks for your reply. I changed the internal heap in
> > CWSDPMI r4 from 128 to 256 paragraphs:
> > This time the computer locked up completely so I had to
> > push the reset button.
> 
> FWIW, I cannot reproduce your problem on my DOS machine (a P166
> running DOS 5.0).  I tried that both in an optimized configuration
> (QEMM 8.03 with SmartDrv and a large RAM disk) and in vanilla
> configuration (no disk cache and no device drivers/TSRs).  The program
> worked in both cases.
> 
> I tried to run it several times one after the other.  I understand
> that in your case, it doesn't need too many attempts to crash.  So it
> seems like it doesn't happen to me.

I usually get an error after 4 or 5 runs, maybe more sometimes
(with the clock tick frequency at 16x 18.2 Hz). It could be
some hardware problem in my PC. Anyways, my 16-bit Turbo
Pascal TSR does the same job, and it seems to work well
together with gcc.

--

Erik Berglund
erik2 DOT berglund AT telia DOT com