From owner-freebsd-fs@FreeBSD.ORG  Wed Jan 26 14:00:59 2005
Return-Path: <owner-freebsd-fs@FreeBSD.ORG>
Delivered-To: freebsd-fs@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 73E2E16A4CE
	for <freebsd-fs@freebsd.org>; Wed, 26 Jan 2005 14:00:59 +0000 (GMT)
Received: from web41203.mail.yahoo.com (web41203.mail.yahoo.com
	[66.218.93.36])	by mx1.FreeBSD.org (Postfix) with SMTP id 3A06B43D1D
	for <freebsd-fs@freebsd.org>; Wed, 26 Jan 2005 14:00:59 +0000 (GMT)
	(envelope-from arne_woerner@yahoo.com)
Received: (qmail 19163 invoked by uid 60001); 26 Jan 2005 14:00:59 -0000
Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
	s=s1024; d=yahoo.com;
	b=jCKEaIeMRwkLrh30lgkuN+8EYNbpBFEA73h7FnTsUdCOv9OZP4YpchAn+QjQy4cGLZrXNBEEQhY4QtVqBMRvhur4Pl+Vh1wRa8XN4FKkRLjWiaPsasisA5WtCph9EWEx6V7BNSiT/9TGUl/FwhbqqtSXtE+OlTMgrkVKgYHOAo0=
	;
Message-ID: <20050126140058.19161.qmail@web41203.mail.yahoo.com>
Received: from [213.54.133.150] by web41203.mail.yahoo.com via HTTP;
	Wed, 26 Jan 2005 06:00:58 PST
Date: Wed, 26 Jan 2005 06:00:58 -0800 (PST)
From: Arne "Wörner" <arne_woerner@yahoo.com>
To: freebsd-fs@freebsd.org
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Subject: ufs+softupdates / consistency
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-fs>
List-Post: <mailto:freebsd-fs@freebsd.org>
List-Help: <mailto:freebsd-fs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 26 Jan 2005 14:00:59 -0000

Hi!

On
  http://e2fsprogs.sourceforge.net/ext2intro.html
I found the strings
  "BSD-like synchronous updates"
  "it can cause corruption in the user data" .

On
  http://www.mckusick.com/softdep/
I did not find such a statement.

Are soft updates safe for user data? I do not really understand,
what the first www page means... Maybe they mean, that the new
file size (that would be meta data, I think) is written before the
user data, so that the file contains undetermined data in its
tail.

I would be glad, if somebody tells me, if ufs with soft updates
writes file size and block information after user data writes have
been committed?

Bye
Arne



	
		
__________________________________ 
Do you Yahoo!? 
Yahoo! Mail - You care about security. So do we. 
http://promotions.yahoo.com/new_mail