From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754050AbZEYW3N (ORCPT ); Mon, 25 May 2009 18:29:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752906AbZEYW3A (ORCPT ); Mon, 25 May 2009 18:29:00 -0400 Received: from smtp-out003.kontent.com ([81.88.40.217]:55533 "EHLO smtp-out003.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752168AbZEYW27 (ORCPT ); Mon, 25 May 2009 18:28:59 -0400 From: Oliver Neukum To: nigel@tuxonice.net Subject: Re: [TuxOnIce-devel] [RFC] TuxOnIce Date: Tue, 26 May 2009 00:29:24 +0200 User-Agent: KMail/1.10.3 (Linux/2.6.27.21-0.1-default; KDE/4.1.3; x86_64; ; ) Cc: Pavel Machek , Bartlomiej Zolnierkiewicz , "Rafael J. Wysocki" , linux-pm@lists.linux-foundation.org, tuxonice-devel@lists.tuxonice.net, linux-kernel@vger.kernel.org References: <1241620755-22133-1-git-send-email-nigel@tuxonice.net> <20090525123228.GA13446@elf.ucw.cz> <1243287557.16743.114.camel@nigel-laptop> In-Reply-To: <1243287557.16743.114.camel@nigel-laptop> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200905260029.25847.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Montag, 25. Mai 2009 23:39:17 schrieb Nigel Cunningham: > > If there's not enough swap available, swsusp should freeze, realize > > there's no swap, unfreeze and continue. I do not see reliability > > problem there. > > If there's not enough storage available (I'm also thinking of the file > allocator Oliver wants), freeing some memory may get you in a position No, I do want a dedicated partition. Going to a filesystem is just hiding the problem. Filesystems can return -ENOSPC. I also want my sytem to reliably hibernate if the filesystem to hold the image happens to be remounted ro or to be undergoing a filesystem check. For full reliability you simply need a reservation. In addition that's the fastest solution, too. A simple linear write to an unfragmented area. The typical system today has three orders of magnitude more disk than ram. Do you really have a sytem you want to hibernate that has less than 2two orders of magnitude more disk than ram? Regards Oliver