From:	mdruiter AT cs DOT vu DOT nl (Ruiter de M)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Double Fault with cwsdpr0.exe
Date:	22 Apr 1998 11:13:32 GMT
Organization:	Fac. Wiskunde & Informatica, VU, Amsterdam
Lines:	27
Message-ID:	<6hkjcs$98c$1@star.cs.vu.nl>
References:	<6h7i72$rnc$1 AT star DOT cs DOT vu DOT nl> <353723c4 DOT sandmann AT clio DOT rice DOT edu>
NNTP-Posting-Host:	sloep111.cs.vu.nl
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Charles Sandmann (sandmann AT clio DOT rice DOT edu) wrote:
> It is technically a bug in cwsdpr0.exe - but one that is known about,
> documented, and left that way for a good reason.  You will see the
> same problem with PMODE.

Oh, didn't know that.

> If ring-0 access is all that is needed, you can use the create descriptor
> functions to provide ring 0 call gates or interrupts, lock your memory, etc
> to provide your own protected mode "kernel" functions with the standard
> CWSDPMI.

I just noticed it and thought I should ask whether it was a bug. I
really don't need it.

> cwsdpr0 was never planned to be a general purpose replacement for cwsdpmi.
> It was written for id Software to allow using the pentium profiling 
> instructions during development.  If anyone finds it useful for more than
> that, great - but it's really not something I want to support.

If I ask again, will this be a FAQ? :-)

-- 
Groeten, Michel.        http://www.cs.vu.nl/~mdruiter
  ____________
  \  /====\  /          "You know, Beavis, you need things that suck,
   \/      \/           to have things that are cool", Butt-Head.

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