From owner-freebsd-stable@FreeBSD.ORG Mon Aug 27 09:06:05 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EC786106564A for ; Mon, 27 Aug 2012 09:06:05 +0000 (UTC) (envelope-from matt@xtaz.co.uk) Received: from mail.xtaz.co.uk (tao.xtaz.co.uk [IPv6:2a01:348:294::1]) by mx1.freebsd.org (Postfix) with ESMTP id A688D8FC08 for ; Mon, 27 Aug 2012 09:06:05 +0000 (UTC) Received: from mail.xtaz.co.uk (tao.xtaz.co.uk [IPv6:2a01:348:294::1]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.xtaz.co.uk (Postfix) with ESMTPS id 262C2DEF21B for ; Mon, 27 Aug 2012 10:06:04 +0100 (BST) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Date: Mon, 27 Aug 2012 10:06:03 +0100 From: Matt Smith To: Message-ID: <2d4dfcb2637f4d0e9671899538b603d9@xtaz.co.uk> X-Sender: matt@xtaz.co.uk User-Agent: Roundcube Webmail/0.8.1 Subject: 9.1 RELENG_9 Unable to cleanly dismount root partition on shutdown 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, 27 Aug 2012 09:06:06 -0000 I posted on this mailing list two weeks ago and never received any replies so I decided to raise a PR via the web form. But I think I submitted it under the wrong category and it's marked as low priority as well. But I think this is something that is a potential serious problem if I end up getting a corrupted filesystem so I'm posting here again in the hope somebody can help this time. The PR is amd64/170646. I'm now running the latest RELENG_9 code as of 25th August as I've done a new buildworld/kernel. I still get the same problem. When I reboot it I get WARNING: / was not properly dismounted and it rebuilds from journal. On shutdown I get the messages pasted below. I'm running amd64 with GPT partitioning, UFS2 with softupdates and softupdates journalling enabled. I have a custom kernel but I don't think I took anything important out of it. Syncing disks, vnodes remaining...7 7 2 0 0 done All buffers synced. fsync: giving up on dirty 0xfffffe0007102780: tag devfs, type VCHR usecount 1, writecount 0, refcount 2292 mountedhere 0xfffffe000000729ca00 flags (VI(0x200)) v_object 0xfffffe0005101910 ref 0 pages 23509 lock type devfs: EXCL by thread 0xfffffe00018fe08e0 (pid 1) dev label/root umount of / failed (35) Then when the box comes back up again it detects that / was not unmounted cleanly and recovers from journal before marking it clean once more. My uname: FreeBSD tao.xtaz.co.uk 9.1-PRERELEASE FreeBSD 9.1-PRERELEASE #0: Sat Aug 25 12:34:52 BST 2012 root@tao.xtaz.co.uk:/usr/obj/usr/src/sys/TAO amd64 My glabel status: Name Status Components gpt/gptboot N/A ada0p1 gptid/bfe99d62-e00f-11e1-8623-00012e475ffb N/A ada0p1 label/root N/A ada0p2 label/swap N/A ada0p3 My fstab: /dev/label/root / ufs rw 1 1 /dev/label/swap none swap sw 0 0 My gpart: => 34 1250263661 ada0 GPT (596G) 34 1024 1 freebsd-boot (512k) 1058 990 - free - (495k) 2048 1228931072 2 freebsd-ufs (586G) 1228933120 21330575 3 freebsd-swap (10G)