From owner-freebsd-stable@FreeBSD.ORG Tue Jun 22 23:17:58 2004 Return-Path: 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 D1C5B16A4CE for ; Tue, 22 Jun 2004 23:17:58 +0000 (GMT) Received: from gizmo04bw.bigpond.com (gizmo04bw.bigpond.com [144.140.70.14]) by mx1.FreeBSD.org (Postfix) with SMTP id 67CF343D5D for ; Tue, 22 Jun 2004 23:17:57 +0000 (GMT) (envelope-from david@burren.cx) Received: (qmail 7718 invoked from network); 22 Jun 2004 23:07:37 -0000 Received: from unknown (HELO bwmam12.bigpond.com) (144.135.24.103) by gizmo04bw.bigpond.com with SMTP; 22 Jun 2004 23:07:37 -0000 Received: from cpe-203-51-173-210.vic.bigpond.net.au ([203.51.173.210]) by bwmam12.bigpond.com(MAM REL_3_4_2a 189/30245982) with SMTP id 30245982; Wed, 23 Jun 2004 09:17:50 +1000 X-Original-To: freebsd-stable@freebsd.org Received: from [127.0.0.1] (localhost [127.0.0.1]) by falco.local (Postfix) with ESMTP id D21FCC9C26; Wed, 23 Jun 2004 09:17:25 +1000 In-Reply-To: <20040622205025.596431AF@hoppel.local> References: <20040622205025.596431AF@hoppel.local> Mime-Version: 1.0 (Apple Message framework v618) Content-Type: text/plain; charset=US-ASCII; format=flowed Message-Id: <524C55FA-C4A2-11D8-9290-000A95E682D0@burren.cx> Content-Transfer-Encoding: 7bit From: David Burren Date: Wed, 23 Jun 2004 09:17:25 +1000 To: "Bjoern Koenig" X-Mailer: Apple Mail (2.618) cc: freebsd-stable@freebsd.org Subject: Re: nullfs in 4.10 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 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, 22 Jun 2004 23:17:59 -0000 On 23/06/2004, at 6:50 AM, Bjoern Koenig wrote: > NFS on localhost instead of nullfs is a very good solution. I beg to differ. Although it may have worked in some situations for you, static loopback NFS mounts can be a big problem. Obviously when you're mounting the filesystem you need nfsd up (that's obvious, and most people think of that) but when shutting down you should umount (or sync) the filesystem before killing off the daemons, which is not the usual way of a shutdown... I learnt this the hard way years ago with Ultrix/Solaris/HPOX machines, and I don't FreeBSD has changed the way shutdown works dramatically... I'm another person who has actively been using nullfs for years on 4 and love it. It allows me to mount areas of my filesystems as read-only. In things like my image management software it allows the software to give out concurrent separate RO and RW paths to objects. I just wish nullfs was also available on OSX... __ David Burren