From owner-freebsd-arch@FreeBSD.ORG Wed Jun 4 08:21:59 2003 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4FA8837B401 for ; Wed, 4 Jun 2003 08:21:59 -0700 (PDT) Received: from odin.ac.hmc.edu (Odin.AC.HMC.Edu [134.173.32.75]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9FB3543F75 for ; Wed, 4 Jun 2003 08:21:58 -0700 (PDT) (envelope-from brdavis@odin.ac.hmc.edu) Received: from odin.ac.hmc.edu (IDENT:brdavis@localhost.localdomain [127.0.0.1]) by odin.ac.hmc.edu (8.12.9/8.12.3) with ESMTP id h54FLuvN000549; Wed, 4 Jun 2003 08:21:56 -0700 Received: (from brdavis@localhost) by odin.ac.hmc.edu (8.12.9/8.12.3/Submit) id h54FLuX3000546; Wed, 4 Jun 2003 08:21:56 -0700 Date: Wed, 4 Jun 2003 08:21:56 -0700 From: Brooks Davis To: "Daniel C. Sobral" Message-ID: <20030604152156.GB25240@Odin.AC.HMC.Edu> References: <20030603113927.I71313@cvs.imp.ch> <16092.35144.948752.554975@grasshopper.cs.duke.edu> <20030603115432.EGLB13328.out002.verizon.net@kokeb.ambesa.net> <20030603122226.BGPM11703.pop018.verizon.net@kokeb.ambesa.net> <3EDD81A4.B6F83135@mindspring.com> <3EDDF732.1060606@tcoip.com.br> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="jq0ap7NbKX2Kqbes" Content-Disposition: inline In-Reply-To: <3EDDF732.1060606@tcoip.com.br> User-Agent: Mutt/1.5.4i X-Virus-Scanned: by amavisd-milter (http://amavis.org/) on odin.ac.hmc.edu cc: arch@freebsd.org Subject: Re: Making a dynamically-linked root X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Jun 2003 15:21:59 -0000 --jq0ap7NbKX2Kqbes Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jun 04, 2003 at 10:42:10AM -0300, Daniel C. Sobral wrote: > Terry Lambert wrote: > >Mike Makonnen wrote: > > > >>2. What happens if I hose one of the libraries? > > > >I always love this one. The same thing that happens if you hose > >your shell, any of your kernel modules get corruptes, you hose > >your kernel, you hose any of the files that the boot loader looks > >in before actually loading the kernel, you hose init, or you hose > >mount, or any one of dozens of other files. > > > >It's not like linking shared gives you any kind of statistically > >significant increase in the number of single points of failure or > >the overall MTBF for the overall system. >=20 > It doesn't? If /bin/sh is hosed, I use /bin/csh. If /bin/ls is hosed, I= =20 > use 'echo *'. If /boot/kernel/kernel gets hosed, I use=20 > /boot/kernel.old/kernel. If a module gets hosed, I don't load it or use= =20 > the one in kernel.old. And so forth. >=20 > If libc gets hosed, *ALL* programs stop working. >=20 > So, I did not have any single point of failure for single file=20 > corruption before. Now I do. But you claim there was not significant=20 > increase, statistically speaking. Could you please point out what am I=20 > missing? /rescue/sh -- Brooks --=20 Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 --jq0ap7NbKX2Kqbes Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQE+3g6SXY6L6fI4GtQRAjYfAJ4jc2A4wc3nUFiYpT6lCCqtuF9YvgCgsEjD Ydk3R+ADGim0tId/aaTAjnw= =+i/I -----END PGP SIGNATURE----- --jq0ap7NbKX2Kqbes--