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Mail Archives: djgpp/1999/10/31/08:33:24

From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Problem with DOS and DPMI
Date: Sun, 31 Oct 1999 10:05:45 +0200
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On Sun, 31 Oct 1999, Damian Yerrick wrote:

> > Page Fault cr2=10000000 at eip=e75; flags=6
> > eax=00000030 ebx=00000000 ecx=0000000c edx=00000000
> > esi=0001a44a edi=00000000 ebp=00000000 esp=00002672
> > cs=18 ds=38 es=af fs=0 gs=0 ss=20 error=0002
> > ================================================
> 
> Page Fault in Sandmann's CWSDPMI not in Micro$oft's DPMW32
> 
> This means you are accessing an address below 0x00001000.

Not in this case.  This message comes from CWSDPMI, not from the
application (the latter never prints cr2 and flags, and the segment
registers are printed differently).  Section 12.2 of the FAQ describes
the application crash message when dereferencing NULL pointers; you
will see that the format is different.

> Run symify on
> the traceback (should be below the register dump) and see if you can
> pinpoint the error.

The crash message of CWSDPMI doesn't include the traceback, and even
if it would, it won't help you anyway, since CWSDPMI is not a DJGPP
executable.  So SYMIFY can't help here.

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