From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261501AbVGUCNf (ORCPT ); Wed, 20 Jul 2005 22:13:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261576AbVGUCNf (ORCPT ); Wed, 20 Jul 2005 22:13:35 -0400 Received: from [216.208.38.107] ([216.208.38.107]:10378 "EHLO OTTLS.pngxnet.com") by vger.kernel.org with ESMTP id S261501AbVGUCNe (ORCPT ); Wed, 20 Jul 2005 22:13:34 -0400 Subject: Re: [PATCH] Preserve hibenate-system-image on startup From: Nigel Cunningham Reply-To: ncunningham@cyclades.com To: Hiroyuki Machida Cc: Linux Kernel Mailing List In-Reply-To: <42DE2D51.5090105@sm.sony.co.jp> References: <42D9FA0C.3060609@sm.sony.co.jp> <1121619485.13487.11.camel@localhost> <42DE2D51.5090105@sm.sony.co.jp> Content-Type: text/plain Organization: Cycades Message-Id: <1121873123.6689.4.camel@localhost> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6-1mdk Date: Thu, 21 Jul 2005 01:25:23 +1000 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi. On Wed, 2005-07-20 at 20:54, Hiroyuki Machida wrote: > Hi, > > > With this function, system needs to mount read-write file systems on > every boot cycle, due to avoid inconsistency between FS and memory. > How did you address this problem? Did kernel check RW FS remained as > mounted on boot up or hibernate time ? You're right. We don't seek to address this problem, just document clearly that filesystems in use when creating the image need to be mounted readonly. You can of course mount another filesystem read/write while the system is up. > I think I need to discuss with you at San Jose at the beginning of > this year. Yes, I think we did meet. Nice to talk to you again. Regards, Nigel > > Regards, > Hiroyuki Machida > > Nigel Cunningham wrote: > > Hi. > > > > We've had this feature in Suspend2 for a couple of years and I can > > confirm that the approach works, provided that the on-disk filesystem > > remains unchanged throughout this. (Useful mainly for kiosks etc). > > > > This is not to say that I've reviewed the code below for correctness. > > > > Regards, > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- Evolution. Enumerate the requirements. Consider the interdependencies. Calculate the probabilities.