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Re: Thread model


From: Neal H. Walfield
Subject: Re: Thread model
Date: Wed, 19 Mar 2008 17:56:03 +0100
User-agent: Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.8 (Shij┼Ź) APEL/10.6 Emacs/21.4 (i486-pc-linux-gnu) MULE/5.0 (SAKAKI)

At Wed, 19 Mar 2008 09:58:57 -0400,
Thomas Bushnell BSG wrote:
> And throwing a big wrinkle into all that is that many architectures do
> not make it *possible* for users to handle page faults.  The processor
> dumps a load of crap on the stack, and the kernel must preserve it
> carefully and then return the fault.  It is very hard to encapsulate
> that so that it can be stored and restored by users without keeping the
> whole stack around.

L4 was ported to a large number of architectures; it can't be that
hard.




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