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Date: Thu, 24 Jan 2002 12:16:39 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
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To: Christophe BARIBAUD <cbaribau AT jnjfr DOT jnj DOT com>
cc: djgpp AT delorie DOT com
Subject: Re: multi-threading
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On Thu, 24 Jan 2002, Christophe BARIBAUD wrote:

> I am currently trying to build a minimalistic multi-threaded kernel with
> djgpp.
> When I change stack selector (ss) my programs hangs when calling __dpmi_int
> It **seems** that DJGPP assumes SS=DS in order to function correctly.
> 
> Can anybody confirm this ?

Yes, the code produced by GCC assumes DS=SS=ES.

If you change the SS to implement the multithreading, you will either 
have to find another way, or do that in assembly.