From owner-freebsd-bugs@FreeBSD.ORG Tue Aug 30 08:40:17 2005 Return-Path: X-Original-To: freebsd-bugs@hub.freebsd.org Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 81ACD16A41F for ; Tue, 30 Aug 2005 08:40:17 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id BD36A43D48 for ; Tue, 30 Aug 2005 08:40:16 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.3/8.13.3) with ESMTP id j7U8eGUc094423 for ; Tue, 30 Aug 2005 08:40:16 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.3/8.13.1/Submit) id j7U8eGol094422; Tue, 30 Aug 2005 08:40:16 GMT (envelope-from gnats) Resent-Date: Tue, 30 Aug 2005 08:40:16 GMT Resent-Message-Id: <200508300840.j7U8eGol094422@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Andrey Simonenko Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7295416A41F for ; Tue, 30 Aug 2005 08:39:06 +0000 (GMT) (envelope-from simon@comsys.ntu-kpi.kiev.ua) Received: from comsys.ntu-kpi.kiev.ua (comsys.ntu-kpi.kiev.ua [195.245.194.142]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5F8D743D45 for ; Tue, 30 Aug 2005 08:39:03 +0000 (GMT) (envelope-from simon@comsys.ntu-kpi.kiev.ua) Received: from pm514-9.comsys.ntu-kpi.kiev.ua (pm514-9.comsys.ntu-kpi.kiev.ua [10.18.54.109]) (authenticated bits=0) by comsys.ntu-kpi.kiev.ua (8.12.10/8.12.10) with ESMTP id j7U8ki82067396 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 30 Aug 2005 11:46:45 +0300 (EEST) Received: by pm514-9.comsys.ntu-kpi.kiev.ua (Postfix, from userid 1000) id B89B42FA; Tue, 30 Aug 2005 11:36:40 +0300 (EEST) Message-Id: <20050830083640.GA277@pm514-9.comsys.ntu-kpi.kiev.ua> Date: Tue, 30 Aug 2005 11:36:40 +0300 From: Andrey Simonenko To: FreeBSD-gnats-submit@FreeBSD.org Cc: Subject: kern/85464: Cannot unmount file-backed disk imported from NFS or SMBFS X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Aug 2005 08:40:17 -0000 >Number: 85464 >Category: kern >Synopsis: Cannot unmount file-backed disk imported from NFS or SMBFS >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Aug 30 08:40:16 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Andrey Simonenko >Release: FreeBSD 5.4-STABLE i386 >Organization: >Environment: FreeBSD 5.4-STABLE i386 >Description: Cannot unmount file-backed disk imported from NFS or SMBFS: 1. Create file-backed disk on the server, put it on exported file system by NFS or SMBFS. 2. On a client mount exported NFS or SMBFS file system. 3. Run mdconfig to attach file-backed disk from mounted NFS or SMBFS file system and mount it (I worked with UFS file-backed disks). 4. Then try to unmount file-backed disk. The kernel shows following messages and refuses to unmount it: For SMBFS: Aug 30 10:04:27 comp1 kernel: fsync: giving up on dirty: 0xc149db58: tag devfs, type VCHR, usecount 4, writecount 0, refcount 4, flags (VV_OBJBUF), lock type devfs: EXCL (count 1) by thread 0xc111e780 (pid 555) Aug 30 10:04:27 comp1 kernel: dev md0c For NFS: Aug 30 11:15:11 pm514-9 kernel: fsync: giving up on dirty: 0xc1a2f210: tag devfs, type VCHR, usecount 3, writecount 0, refcount 4, flags (VV_OBJBUF), lock type devfs: EXCL (count 1) by thread 0xc12d9480 (pid 492) Aug 30 11:15:11 pm514-9 kernel: dev md0c >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted: