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Date: Tue, 5 Mar 2002 21:47:37 +0100
From: Pavel Machek <pavel@suse.cz>
To: Alexander Viro <viro@math.psu.edu>
Cc: Rik van Riel <riel@conectiva.com.br>, Rakesh Kumar Banka <Rakesh@asu.edu>,
        linux-kernel@vger.kernel.org
Subject: Re: Monolithic Vs. Microkernel
Message-ID: <20020305204737.GC318@elf.ucw.cz>
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Hi!

> > Not *all* of them. On vsta, you could do
> > 
> > ( killall keyboard; sleep 1; keyboard ) &
> > 
> > to change your keymap. On linux you need special tools for managing
> > modules and are not protected from module bugs. Try developing filesystem
> > on production box.... You can do that on u-kernels.
> 
> Userland filesystems != microkernel.

Yep, but microkernel => userland filesystems ;-). Anyway, they *can*
do things linux can't do (or linux has hard time with), like
partitioning physical machine into few logical ones, filesystems in
userland, ability to debug drivers on production machines, etc.

I like those features, but I'm not sure if costs introduced by
u-kernels are worth it.
									Pavel
-- 
(about SSSCA) "I don't say this lightly.  However, I really think that the U.S.
no longer is classifiable as a democracy, but rather as a plutocracy." --hpa
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