From owner-freebsd-arch@FreeBSD.ORG Wed Jun 4 06:42:21 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 DCBBB37B401 for ; Wed, 4 Jun 2003 06:42:21 -0700 (PDT) Received: from mail.tcoip.com.br (erato.tco.net.br [200.220.254.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id A003643FB1 for ; Wed, 4 Jun 2003 06:42:19 -0700 (PDT) (envelope-from dcs@tcoip.com.br) Received: from tcoip.com.br ([10.0.2.6]) by mail.tcoip.com.br (8.11.6/8.11.6) with ESMTP id h54Dg9l00485; Wed, 4 Jun 2003 10:42:09 -0300 Message-ID: <3EDDF732.1060606@tcoip.com.br> Date: Wed, 04 Jun 2003 10:42:10 -0300 From: "Daniel C. Sobral" User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.4a) Gecko/20030416 X-Accept-Language: en-us, en, pt-br, ja MIME-Version: 1.0 To: Terry Lambert 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> In-Reply-To: <3EDD81A4.B6F83135@mindspring.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit 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 13:42:22 -0000 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. It doesn't? If /bin/sh is hosed, I use /bin/csh. If /bin/ls is hosed, I use 'echo *'. If /boot/kernel/kernel gets hosed, I use /boot/kernel.old/kernel. If a module gets hosed, I don't load it or use the one in kernel.old. And so forth. If libc gets hosed, *ALL* programs stop working. So, I did not have any single point of failure for single file corruption before. Now I do. But you claim there was not significant increase, statistically speaking. Could you please point out what am I missing? -- Daniel C. Sobral (8-DCS) Gerencia de Operacoes Divisao de Comunicacao de Dados Coordenacao de Seguranca VIVO Centro Oeste Norte Fones: 55-61-313-7654/Cel: 55-61-9618-0904 E-mail: Daniel.Capo@tco.net.br Daniel.Sobral@tcoip.com.br dcs@tcoip.com.br Outros: dcs@newsguy.com dcs@freebsd.org capo@notorious.bsdconspiracy.net Sushido, n: The way of the tuna.