From:	wichmann AT pythia DOT itkp DOT uni-bonn DOT de (Andreas Wichmann)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: DJGPP under OS/2: DPMI config question
Date:	15 Jan 1997 17:37:26 GMT
Organization:	RHRZ - University of Bonn (Germany)
Lines:	28
Message-ID:	<5bj4km$isi@news.rhrz.uni-bonn.de>
NNTP-Posting-Host:	pythia.itkp.uni-bonn.de
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

> I am running DJGPP under OS/2, and am having trouble with the DPMI
> setup.
I have used DJGPP V1/V2 in an MSDOS6.2 session under OS/2 3.0.
First it worked. Later I changed something (what??) - virtual memory
exhausted. I tried all settings I could think of and gave up.
It workes again now, but don't ask me why. 

> Whether I make CWSDPMI.EXE available or not,
Clear. OS/2 and Windows provide DPMI themselves, and CWSDPMI.EXE
doesn't do anything if DPMI is already available.

> GO32-V2 reports the following:
> DPMI memory available: 375 Kb
> DPMI swap space available: 60681 Kb
My GO32-V2 reports correct values under DOS, but it says that I have
4GB (!) of virtual memory under OS/2. Under Win95, you shouldn't
rely on GO32-V2 either as malloc() may change the sizes of
the swap file as well as the disk cache size.
You shouldn't worry about physical memory. OS/2 tries to allocate
about 20MB of physical memory at startup, and doesn't free it
(by swapping) before necessary. Free physical memory is
generally wasted memory!

Do you have a real "virtual memory exceeded in new"-problem?
How much memory can you malloc() if you try?

Andreas
http://pythia.itkp.uni-bonn.de/~wichmann

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