linux-kernel - Re: [PATCH 12/19] PM/Suspend: Do not shrink memory before suspend

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Message-ID: <20090612110235.GL18682@elf.ucw.cz>
Date:	Fri, 12 Jun 2009 13:02:35 +0200
From:	Pavel Machek <pavel@....cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Linux PM List <linux-pm@...ts.linux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Cornelia Huck <cornelia.huck@...ibm.com>,
	Magnus Damm <damm@...l.co.jp>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Alan Stern <stern@...land.harvard.edu>,
	Sergio Luis <sergio@...ces.uece.br>,
	Lauro Salmito <laurosalmito@...il.com>,
	Jaswinder Singh Rajput <jaswinder@...nel.org>,
	Ingo Molnar <mingo@...e.hu>,
	Nigel Cunningham <nigel@...onice.net>
Subject: Re: [PATCH 12/19] PM/Suspend: Do not shrink memory before suspend

On Thu 2009-06-11 22:39:03, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rjw@...k.pl>
> 
> Remove the shrinking of memory from the suspend-to-RAM code, where
> it is not really necessary.

I still have not seen any explanation why it is not neccessary.

It is true that I did not have time to stress my system to the point
when it has 0 pages free, but we certainly know that it is possible,
and we know that at least one driver allocates memory and will be
broken if that happens.

NAK.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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