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Date: Wed, 1 Nov 2000 16:00:08 +0100
From: Andrea Arcangeli <andrea@suse.de>
To: David Woodhouse <dwmw2@infradead.org>
Cc: "Jeff V. Merkey" <jmerkey@timpanogas.org>, Larry McVoy <lm@bitmover.com>,
        Paul Menage <pmenage@ensim.com>, Rik van Riel <riel@conectiva.com.br>,
        linux-kernel@vger.kernel.org
Subject: Re: 2.2.18Pre Lan Performance Rocks!
Message-ID: <20001101160008.C9774@athlon.random>
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On Wed, Nov 01, 2000 at 11:13:16AM +0000, David Woodhouse wrote:
> Isn't that _exactly_ what happens with Linux kernel threads, with lazy mm 
> switching?

Sure. Infact all the kernel (modules included) runs in ring 0 sharing the same
part of VM and - as everybody knows - a bug in a driver (or in khttpd or tux)
can crash the kernel.

But you can't destabilize the whole system when a bug in apache triggers (that
would happen with a ring 0 linux instead, and yes, with "linux" Jeff meant the
whole system, not just the kernel).

Andrea
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