Implementing TLS: step 1

Julian Elischer julian at elischer.org
Fri Jun 20 10:48:14 PDT 2003



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/
> 
> _______________________________________________
> freebsd-threads at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-threads
> To unsubscribe, send any mail to "freebsd-threads-unsubscribe at freebsd.org"
> 



More information about the freebsd-threads mailing list