From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030251AbVIVKsl (ORCPT ); Thu, 22 Sep 2005 06:48:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030252AbVIVKsl (ORCPT ); Thu, 22 Sep 2005 06:48:41 -0400 Received: from [195.209.228.254] ([195.209.228.254]:7591 "EHLO shelob.oktetlabs.ru") by vger.kernel.org with ESMTP id S1030251AbVIVKsl (ORCPT ); Thu, 22 Sep 2005 06:48:41 -0400 Message-ID: <43328C07.9070001@yandex.ru> Date: Thu, 22 Sep 2005 14:48:39 +0400 From: "Artem B. Bityutskiy" User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.8) Gecko/20050513 Fedora/1.7.8-1.3.1 X-Accept-Language: en, ru, en-us MIME-Version: 1.0 To: Pavel Machek Cc: J Engel , Peter Menzebach , linux-kernel Subject: Re: data loss on jffs2 filesystem on dataflash References: <432817FF.10307@yandex.ru> <4329251C.7050102@mw-itcon.de> <4329288B.8050909@yandex.ru> <43292AC6.40809@mw-itcon.de> <43292E16.70401@yandex.ru> <43292F91.9010302@mw-itcon.de> <432FE1EF.9000807@yandex.ru> <432FEF55.5090700@mw-itcon.de> <433006D8.4010502@yandex.ru> <20050920133244.GC4634@wohnheim.fh-wedel.de> <20050921190759.GC467@openzaurus.ucw.cz> In-Reply-To: <20050921190759.GC467@openzaurus.ucw.cz> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Pavel Machek wrote: > ext2 and anything that does not do journalling? > > I do not thing behaviour on powerfail is part of block device definition. > Pavel, AFAIU, Joern meant that if HDD starts a block write operation, it will accomplish it even if power-fail happens (probably there are some capacitors there). So, it is impossible, say, that HDD has written one half of a sector and has not written the other half. And he wanted to say that DataFlash HW does not guarante this. But, perhaps, adding a special HW, this is implementable. -- Best Regards, Artem B. Bityuckiy, St.-Petersburg, Russia.