From owner-freebsd-stable@FreeBSD.ORG Tue Sep 12 11:01:03 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DB5E516A403 for ; Tue, 12 Sep 2006 11:01:03 +0000 (UTC) (envelope-from freebsd-stable@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id 69B6C43D45 for ; Tue, 12 Sep 2006 11:01:02 +0000 (GMT) (envelope-from freebsd-stable@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1GN604-00071o-22 for freebsd-stable@freebsd.org; Tue, 12 Sep 2006 13:00:20 +0200 Received: from lara.cc.fer.hr ([161.53.72.113]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 12 Sep 2006 13:00:20 +0200 Received: from ivoras by lara.cc.fer.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 12 Sep 2006 13:00:20 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-stable@freebsd.org From: Ivan Voras Date: Tue, 12 Sep 2006 12:59:13 +0200 Lines: 12 Message-ID: References: <45066E19.2040405@kuehlbox.de> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: lara.cc.fer.hr User-Agent: Thunderbird 1.5.0.4 (X11/20060625) In-Reply-To: Sender: news Subject: Re: gjournal and Softupdates X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Sep 2006 11:01:03 -0000 Christian Laursen wrote: > Ivan Voras writes: > >> - todays desktop drives can lie about writing data. SoftUpdates relies >> on some assumptions about when the data is physically written to >> media, and those are not always valid today > > I think journaling relies on the same assumptions. Doesn't it rely less since a journal is written sequentially, but SU expects ordering of many writes to different parts of the file system to be persistent and in sequence?