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Date: Fri, 20 Jun 2003 10:48:08 -0700 (PDT)
From: Julian Elischer <julian@elischer.org>
To: Igor Sysoev <is@rambler-co.ru>
In-Reply-To: <Pine.BSF.4.21.0306201456430.25447-100000@is>
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cc: threads@freebsd.org
Subject: Re: Implementing TLS: step 1
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On Fri, 20 Jun 2003, Igor Sysoev wrote:

> On Fri, 20 Jun 2003, Terry Lambert wrote:
> 
> > Julian Elischer wrote:
> > > The big cost is that a processin x86 can only have a limited number of
> > > segments set up in teh Local descriptor table (LDT).
> > > I forget the actual number but i vaguely remember that it is 16383 or
> > > 8191 or something.
> > 
> > 65536, but it includes the recursive mapping and the call trap, etc.,
> > so it's reall 65531.
> 
> LDT can have 8192 descriptors.
> GDT can have 8191 usefull descriptors. The first descriptor is null one.
> 

yes, that's what I remembered..

thanks


> 
> Igor Sysoev
> http://sysoev.ru/en/
> 
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