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Date:      Wed, 22 Nov 2000 18:07:27 -0500 (EST)
From:      Daniel Eischen <eischen@vigrid.com>
To:        Alfred Perlstein <bright@wintelcom.net>
Cc:        John Baldwin <jhb@FreeBSD.ORG>, Arun Sharma <arun@sharmas.dhs.org>, arch@FreeBSD.ORG
Subject:   Re: Thread-specific data and KSEs
Message-ID:  <Pine.SUN.3.91.1001122180448.7920A-100000@pcnet1.pcnet.com>
In-Reply-To: <20001122133421.S18037@fw.wintelcom.net>

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On Wed, 22 Nov 2000, Alfred Perlstein wrote:
> * John Baldwin <jhb@FreeBSD.ORG> [001122 13:06] wrote:
> > 
> > Eh, I would use a small LDT (LDT's don't have to be large if you don't have a
> > lot of selectors) for each KSE with one statically configured selector that %gs
> > is always set to that will point to the KSE data.  Thus, when you create a KSE,
> > you just setup its LDT to have the KSE data entry point to the KSE data.
> 
> Was there something wrong with the suggestion to put the local info
> on the stack?  I just don't see it being discussed at all.

Yes, I stated that it could not be used.  We want to provide a POSIX
complaint API, and this dictates that applications be able to create
stacks of their own size and choosing.  We can't rely on stacks being
any particular size, or starting at any particular address.

-- 
Dan Eischen



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