From owner-freebsd-geom@FreeBSD.ORG  Thu Feb  5 23:21:28 2004
Return-Path: <owner-freebsd-geom@FreeBSD.ORG>
Delivered-To: freebsd-geom@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 28B3416A4CE
	for <freebsd-geom@freebsd.org>; Thu,  5 Feb 2004 23:21:28 -0800 (PST)
Received: from smtp.des.no (flood.des.no [217.116.83.31])
	by mx1.FreeBSD.org (Postfix) with ESMTP id F3B7743D46
	for <freebsd-geom@freebsd.org>; Thu,  5 Feb 2004 23:21:26 -0800 (PST)
	(envelope-from des@des.no)
Received: by smtp.des.no (Pony Express, from userid 666)
	id 1883B5309; Fri,  6 Feb 2004 08:21:26 +0100 (CET)
Received: from dwp.des.no (des.no [80.203.228.37])
	by smtp.des.no (Pony Express) with ESMTP
	id BDDDA5308; Fri,  6 Feb 2004 08:21:19 +0100 (CET)
Received: by dwp.des.no (Postfix, from userid 2602)
	id A287F33C68; Fri,  6 Feb 2004 08:21:19 +0100 (CET)
To: Brooks Davis <brooks@one-eyed-alien.net>
References: <20040205005240.GA31747@Odin.AC.HMC.Edu>
	<xzpu125nr15.fsf@dwp.des.no> <20040205220227.GA4895@Odin.AC.HMC.Edu>
From: des@des.no (Dag-Erling =?iso-8859-1?q?Sm=F8rgrav?=)
Date: Fri, 06 Feb 2004 08:21:19 +0100
In-Reply-To: <20040205220227.GA4895@Odin.AC.HMC.Edu> (Brooks Davis's message
 of "Thu, 5 Feb 2004 14:02:27 -0800")
Message-ID: <xzpsmhoekr4.fsf@dwp.des.no>
User-Agent: Gnus/5.090024 (Oort Gnus v0.24) Emacs/21.3 (berkeley-unix)
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable
X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on flood.des.no
X-Spam-Level: 
X-Spam-Status: No, hits=0.0 required=5.0 tests=AWL autolearn=no version=2.63
cc: freebsd-geom@freebsd.org
Subject: Re: rc.d/gbde_swap problem
X-BeenThere: freebsd-geom@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: GEOM-specific discussions and implementations
	<freebsd-geom.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-geom>,
	<mailto:freebsd-geom-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-geom>
List-Post: <mailto:freebsd-geom@freebsd.org>
List-Help: <mailto:freebsd-geom-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-geom>,
	<mailto:freebsd-geom-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 06 Feb 2004 07:21:28 -0000

Brooks Davis <brooks@one-eyed-alien.net> writes:
> Thanks.  It did occure to me last night that we do have another decent
> source of entropy at this point: the geom swap partitions themselves.
> If we just dd'd a small portion of the disk after an appropriate offset
> to avoid any metadata (is there any, I can't remember), we'd at least
> have something no worse then the ps, etc output we use as a default.

on-disk data is subject to outside manipulation and therefore
inherently unsafe.

DES
--=20
Dag-Erling Sm=F8rgrav - des@des.no