From owner-freebsd-current@FreeBSD.ORG  Wed Nov 19 07:22:32 2008
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id E8F82106564A;
	Wed, 19 Nov 2008 07:22:32 +0000 (UTC)
	(envelope-from morganw@chemikals.org)
Received: from warped.bluecherry.net (unknown [IPv6:2001:440:eeee:fffb::2])
	by mx1.freebsd.org (Postfix) with ESMTP id 856B68FC0A;
	Wed, 19 Nov 2008 07:22:32 +0000 (UTC)
	(envelope-from morganw@chemikals.org)
Received: from volatile.chemikals.org (unknown [74.193.182.107])
	(using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
	(Client did not present a certificate)
	by warped.bluecherry.net (Postfix) with ESMTPSA id 6DE8AA23F250;
	Wed, 19 Nov 2008 01:22:31 -0600 (CST)
Received: from localhost (morganw@localhost [127.0.0.1])
	by volatile.chemikals.org (8.14.3/8.14.3) with ESMTP id mAJ7Moen006171; 
	Wed, 19 Nov 2008 01:22:50 -0600 (CST)
	(envelope-from morganw@chemikals.org)
Date: Wed, 19 Nov 2008 01:22:50 -0600 (CST)
From: Wes Morgan <morganw@chemikals.org>
To: Pawel Jakub Dawidek <pjd@freebsd.org>
In-Reply-To: <20081117205526.GC1733@garage.freebsd.pl>
Message-ID: <alpine.BSF.2.00.0811181950400.3936@ibyngvyr.purzvxnyf.bet>
References: <20081117205526.GC1733@garage.freebsd.pl>
User-Agent: Alpine 2.00 (BSF 1167 2008-08-23)
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII
Cc: freebsd-current@freebsd.org
Subject: Re: HEADS UP: New ZFS in the tree.
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: Wed, 19 Nov 2008 07:22:33 -0000

On Mon, 17 Nov 2008, Pawel Jakub Dawidek wrote:

> Hi.
>
> So ZFS was updated from version 6 to 13. Be very careful when updating
> your system if you use ZFS. The number of changes is huge and my
> regression tests and manual tests I did only cover part of the entire
> functionality.

I'm hitting this at reboot, with a zfs root:

zfs_vfsops.c:969
ZFS_LOG(0, "Force unmount is not supported, removing FORCE flag.");

Followed by a "cannot unmount / (busy)" (however it shows up) error. 
Looking at the code, it looks like that message is simply to be 
expected...