From owner-freebsd-stable@FreeBSD.ORG Mon Oct 17 21:32:55 2005 Return-Path: X-Original-To: stable@freebsd.org 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 E972B16A41F for ; Mon, 17 Oct 2005 21:32:55 +0000 (GMT) (envelope-from wb@freebie.xs4all.nl) Received: from smtp-vbr12.xs4all.nl (smtp-vbr12.xs4all.nl [194.109.24.32]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4D56A43D48 for ; Mon, 17 Oct 2005 21:32:55 +0000 (GMT) (envelope-from wb@freebie.xs4all.nl) Received: from freebie.xs4all.nl (freebie.xs4all.nl [213.84.32.253]) by smtp-vbr12.xs4all.nl (8.13.3/8.13.3) with ESMTP id j9HLWq6a069284; Mon, 17 Oct 2005 23:32:53 +0200 (CEST) (envelope-from wb@freebie.xs4all.nl) Received: from freebie.xs4all.nl (localhost [127.0.0.1]) by freebie.xs4all.nl (8.13.3/8.13.3) with ESMTP id j9HLWqQw000893; Mon, 17 Oct 2005 23:32:52 +0200 (CEST) (envelope-from wb@freebie.xs4all.nl) Received: (from wb@localhost) by freebie.xs4all.nl (8.13.3/8.13.1/Submit) id j9HLWqV6000892; Mon, 17 Oct 2005 23:32:52 +0200 (CEST) (envelope-from wb) Date: Mon, 17 Oct 2005 23:32:52 +0200 From: Wilko Bulte To: Mike Jakubik Message-ID: <20051017213252.GA866@freebie.xs4all.nl> References: <0E972CEE334BFE4291CD07E056C76ED807738007@bragi.housing.ufl.edu> <1211.FgtQRFVGBkU=.1129584070.squirrel@172.16.0.1> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1211.FgtQRFVGBkU=.1129584070.squirrel@172.16.0.1> X-OS: FreeBSD 5.4-STABLE User-Agent: Mutt/1.5.9i X-Virus-Scanned: by XS4ALL Virus Scanner Cc: stable@freebsd.org, Will Saxon , Ronald Klop Subject: Re: Disk 100% busy X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Oct 2005 21:32:56 -0000 On Mon, Oct 17, 2005 at 05:21:10PM -0400, Mike Jakubik wrote.. > On Sun, October 16, 2005 1:53 pm, Will Saxon wrote: > > > I completely forgot that I had the partition mounted 'sync'. That might > > explain things a bit, huh. > > Do NOT mount the partition async, you are asking for filesystem corruption. async is the other extreme end of the spectrum from sync.. async All I/O to the file system should be done asynchronously. This is a dangerous flag to set, and should not be used unless you are prepared to recreate the file system should your system crash. noasync Metadata I/O should be done synchronously, while data I/O should be done asynchronously. This is the default. sync All I/O to the file system should be done synchronously. -- Wilko Bulte wilko@FreeBSD.org