Re: Thread model

[Neal H. Walfield]

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.