From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nigel Cunningham Subject: Re: [RFC 09/15] PM / Hibernate: user, implement user_ops writer Date: Thu, 01 Apr 2010 08:01:23 +1100 Message-ID: <4BB3B823.5080803@crca.org.au> References: <1269361063-3341-1-git-send-email-jslaby@suse.cz> <201003300009.18315.rjw@sisk.pl> <4BB1508E.9030103@crca.org.au> <201003302303.12758.rjw@sisk.pl> <4BB2B3E5.7020708@crca.org.au> <20100331144702.GC3449@ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20100331144702.GC3449@ucw.cz> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: Pavel Machek Cc: linux-pm@lists.linux-foundation.org, Jiri Slaby List-Id: linux-pm@vger.kernel.org Hi. On 01/04/10 01:47, Pavel Machek wrote: > Hi! > >> Regarding using LRU pages as temporary storage, if it wasn't safe and >> reliable, I would have stopped doing it ages ago. The only problem I can > > What kind of argument is that? > > And what prevents people from introducing more KMS-like breakage in > future? Nothing. And we catch it when it occurs and resave the pages. It is of course also possible for us to take a more complicated approach and save just what we know is safe. Or we could just use kexec... Nigel