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From:	Charles Sandmann <sandmann AT clio DOT rice DOT edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: strange problem with dos DPMI
Date:	Thu, 17 Jan 2002 21:19:20 CST
Organization:	Rice University, Houston TX
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> I have program, which runs correctly under win95 dpmi server,
> but under clear dos v 7.0 with csdpmi5 server has strange behaviour:

If you get a page fault you may have one of two problems:
1) null pointers (not caught with W95)
2) unlocked memory 

Posting the entire error message would be helpful.  You need to als make
sure you are not using any "extended" interrupts which expect 
pointers to be automatically handled.

> I am looking for some tips as I have tried several test without success.
> I even created a small version of this program, but it works without any
> problems also in DOS.

Keep adding features till you find what's broken.

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