From owner-freebsd-current@FreeBSD.ORG  Mon Jul  4 17:26:12 2005
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
X-Original-To: current@freebsd.org
Delivered-To: freebsd-current@FreeBSD.ORG
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 49ECE16A41C
	for <current@freebsd.org>; Mon,  4 Jul 2005 17:26:12 +0000 (GMT)
	(envelope-from bkoenig@cs.tu-berlin.de)
Received: from mail.efacilitas.de (efacilitas.de [213.133.110.227])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 0748143D45
	for <current@freebsd.org>; Mon,  4 Jul 2005 17:26:11 +0000 (GMT)
	(envelope-from bkoenig@cs.tu-berlin.de)
Received: from eurystheus.local (port-212-202-37-29.dynamic.qsc.de
	[212.202.37.29])
	by mail.efacilitas.de (Postfix) with ESMTP id 36439123A5B;
	Mon,  4 Jul 2005 19:24:25 +0200 (CEST)
Received: from localhost (eurystheus.local [192.168.1.67])
	by eurystheus.local (Postfix) with ESMTP id 5E94512B0EB;
	Mon,  4 Jul 2005 19:24:35 +0200 (CEST)
Received: from eurystheus.local ([192.168.1.67])
	by localhost (eurystheus.locaL [192.168.1.67]) (amavisd-new, port 10024)
	with ESMTP id 41148-05; Mon,  4 Jul 2005 19:24:30 +0200 (CEST)
Received: from [192.168.1.67] (eurystheus.local [192.168.1.67])
	by eurystheus.local (Postfix) with ESMTP id 8D7EE12B0EC;
	Mon,  4 Jul 2005 19:24:30 +0200 (CEST)
Message-ID: <42C970CD.9070905@cs.tu-berlin.de>
Date: Mon, 04 Jul 2005 19:24:29 +0200
From: =?ISO-8859-1?Q?Bj=F6rn_K=F6nig?= <bkoenig@cs.tu-berlin.de>
User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.8) Gecko/20050517
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: Andre Guibert de Bruet <andy@siliconlandmark.com>
References: <20050703112108.F474@free.home.local>
	<20050703124901.M80892@lexi.siliconlandmark.com>
In-Reply-To: <20050703124901.M80892@lexi.siliconlandmark.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 8bit
X-Virus-Scanned: amavisd-new at example.com
Cc: Yuriy Tsibizov <Yuriy.Tsibizov@gfk.ru>, current@freebsd.org
Subject: Re: Fatal trap 12 if you unmount detached umass device
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 04 Jul 2005 17:26:12 -0000

Andre Guibert de Bruet wrote:

> 1. Don't do that

It concerns not only USB drives, but any kind of removable media, even 
floppy disks. A lot of people tend to remove floppy disks without 
unmounting the filesystem before and I think it's unacceptable to let 
users reboot their machine if they did this mistake.

> (If you're going to do it, try umount -f).

... which causes the death of a machine if you do this twice.


I prepared myself to step into the source code next month to eliminate 
this annoying behaviour.

Regards
Björn