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Subject: Re: Running user processes in kernel mode; Java and .NET support
	in kernel
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Simon Kissane <skissane@gmail.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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Date: Sun, 17 Oct 2004 03:27:46 +0100
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Why would I care ? I need the MMU for paging and to avoid fragmentation
of the system. If I have the MMU on then memory protection checks are
free.

Except in 4G/4G mode syscalls are extremely cheap too nowdays.

Alan