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Re: Thread model

From: Thomas Bushnell BSG
Subject: Re: Thread model
Date: Wed, 19 Mar 2008 09:51:16 -0400

On Tue, 2008-03-18 at 10:26 +0100, olafBuddenhagen@gmx.net wrote:
> > You need kernel memory for the memory maps, at least one for each user
> > thread.
> No I don't. That's precisely where it is *not* equivalent.
> In the model I described, the state structures for the blocked requests
> (I prefer not to talk about user threads here -- it's possible to use
> that abstraction, but it only seems to be confusing) are ordinary user
> space data structures, living on the heap. The kernel has nothing to do
> with them.

The heap is demand paged virtual memory, for which the kernel must
maintain memory maps, as Neal was saying.


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