From: Martin Stromberg <Martin DOT Stromberg AT epl DOT ericsson DOT se>
Message-Id: <200108171054.MAA24446@merope.lu.erisoft.se>
Subject: Re: _open.c commit?  (was Re: Selector Exhaustion)
To: djgpp-workers AT delorie DOT com
Date: Fri, 17 Aug 2001 12:54:12 +0200 (MET DST)
Cc: Bart DOT Oldeman AT bristol DOT ac DOT uk (Bart Oldeman)
In-Reply-To: <3B7D0F21.25494.2689A4@localhost> from "pavenis@lanet.lv" at Aug 17, 2001 12:33:37 PM
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Note that I've CC-ed Bart Oldeman which knows dosemu well.

Bart, this is a discussion about working around the selector leaks in
WINDOZEs. The archives are available at
<http://www.delorie.com/djgpp/mail-archives/browse.cgi?p=djgpp-workers>
and the list address is djgpp-workers AT delorie DOT com.

Andris said:
> > However, I'd like to see that patch changed so that plain DOS systems
> > aren't affected at all.  Why slow down systems which don't need that?
> > We already have the _windows_major variable that can be used to easily
> > test for whether we are on Windows, and _get_dos_version(1) can be
> > used for NT/W2K/XP.
> 
> Ok. But I would not like to rely only on Windows presence. One can 
> try to run DJGPP applications under DOSEMU under Linux and in this 
> case I have seen descriptors leak (as far as I remeber) at least with 
> some versions. We may also have bad DPMI providers for DOS which 
> leaks descriptors. 
> 
> So I would prefer to look whether we have good DPMI server.

Yes. But I imagine that dosemu isn't one of the non-good. Or if it
is, that the dosemu team wants to know about it.

And if some versions do leak but later versions have been corrected, I
think you're supposed to upgrade instead of punishing those that do
use correct versions.


Right,

						MartinS