From owner-freebsd-bugs@FreeBSD.ORG Sun Jan 20 14:50:00 2013 Return-Path: Delivered-To: freebsd-bugs@smarthost.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id CE844E60 for ; Sun, 20 Jan 2013 14:50:00 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by mx1.freebsd.org (Postfix) with ESMTP id 9CC62738 for ; Sun, 20 Jan 2013 14:50:00 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.6/8.14.6) with ESMTP id r0KEo0Be007058 for ; Sun, 20 Jan 2013 14:50:00 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.6/8.14.6/Submit) id r0KEo0M2007057; Sun, 20 Jan 2013 14:50:00 GMT (envelope-from gnats) Resent-Date: Sun, 20 Jan 2013 14:50:00 GMT Resent-Message-Id: <201301201450.r0KEo0M2007057@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, David Naylor Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 4D714C36 for ; Sun, 20 Jan 2013 14:41:43 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 36E216F0 for ; Sun, 20 Jan 2013 14:41:43 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.5/8.14.5) with ESMTP id r0KEfgww023925 for ; Sun, 20 Jan 2013 14:41:42 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.5/8.14.5/Submit) id r0KEfgwJ023910; Sun, 20 Jan 2013 14:41:42 GMT (envelope-from nobody) Message-Id: <201301201441.r0KEfgwJ023910@red.freebsd.org> Date: Sun, 20 Jan 2013 14:41:42 GMT From: David Naylor To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Subject: kern/175449: unionfs and devfs misbehaviour X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Jan 2013 14:50:00 -0000 >Number: 175449 >Category: kern >Synopsis: unionfs and devfs misbehaviour >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Jan 20 14:50:00 UTC 2013 >Closed-Date: >Last-Modified: >Originator: David Naylor >Release: >Organization: Private >Environment: FreeBSD ultra.dg 9.1-PRERELEASE FreeBSD 9.1-PRERELEASE #0: Wed Oct 10 21:08:01 SAST 2012 root@dragon.dg:/tmp/home/freebsd9/src/sys/MODULAR amd64 >Description: When creating a uniofs based chroot I discovered some strange behaviour with dev/. >How-To-Repeat: # mkdir bottom-p bottom/dev top # mount -t unionfs -o below bottom top # mount -t tmpfs tmdevfs devfs top/dev # ls -l top/dev/null ls: top/dev/null: No such file or directory # touch top/dev/null # ls -l top/dev/null -rw-r--r-- 1 root wheel 0 Jan 20 16:35 top/dev/null # touch top/dev # ls -l top/dev/null crw-rw-rw- 1 root wheel 0, 18 Jan 20 16:34 top/dev/null >Fix: Workaround: # mkdir bottom-p bottom/dev top # mount -t unionfs -o below bottom top # mount -t tmpfs tmdevfs devfs top/dev # touch top/dev >Release-Note: >Audit-Trail: >Unformatted: