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Re: [linux-pm] [RFC] userland swsusp

From:  Dave Jones <davej-AT-redhat.com>
To:  Pavel Machek <pavel-AT-ucw.cz>
Subject:  Re: [linux-pm] [RFC] userland swsusp
Date:  Tue, 15 Nov 2005 17:25:49 -0500
Cc:  kernel list <linux-kernel-AT-vger.kernel.org>, "Rafael J. Wysocki" <rjw-AT-sisk.pl>, Linux-pm mailing list <linux-pm-AT-lists.osdl.org>
Archive-link:  Article, Thread

On Tue, Nov 15, 2005 at 10:29:42PM +0100, Pavel Machek wrote:
 > Hi!
 > 
 > This is prototype of userland swsusp. I'd like kernel parts to go in,
 > probably for 2.6.16. Now, I'm not sure about the interface, ioctls are
 > slightly ugly, OTOH it would be probably overkill to introduce
 > syscalls just for this. (I'll need to add an ioctl for freeing memory
 > in future).

Just for info: If this goes in, Red Hat/Fedora kernels will fork
swsusp development, as this method just will not work there.
(We have a restricted /dev/mem that prevents writes to arbitary
 memory regions, as part of a patchset to prevent rootkits)

Even it were not for this, the whole idea seems misconcieved to me
anyway.

		Dave



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