Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758546Ab3ENVMv (ORCPT ); Tue, 14 May 2013 17:12:51 -0400 Received: from mx1.redhat.com ([209.132.183.28]:14256 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758419Ab3ENVMt (ORCPT ); Tue, 14 May 2013 17:12:49 -0400 Message-ID: <5192A8CE.30809@redhat.com> Date: Tue, 14 May 2013 16:12:46 -0500 From: Eric Sandeen User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130328 Thunderbird/17.0.5 MIME-Version: 1.0 To: =?UTF-8?B?VG9yYWxmIEbDtnJzdGVy?= CC: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, Linux Kernel Subject: Re: v3.10: unmount won't work References: <51928CB5.2050406@gmx.de> In-Reply-To: <51928CB5.2050406@gmx.de> X-Enigmail-Version: 1.5.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 972 Lines: 26 On 5/14/13 2:12 PM, Toralf Förster wrote: > At a stable 32 bit stable Gentoo with kernel v3.10-rc1-113-ga2c7a54 I cannot umount an (EXT4) fs > which was created in a file located in a tmpfs partition and loop mounted : > > That file system was used to hold victims files shared via NFSv4 to an user mode linux > on which trinity was used to fuzz testing a patched UML guest kernel. > > n22 ~ # mount > ... > nfsd on /proc/fs/nfsd type nfsd (rw,nodev,noexec,nosuid) > /mnt/ramdisk/disk0 on /mnt/trinity type ext4 (rw) Is your "mount" looking at /etc/mtab ot at /proc/mounts? What does /proc/mounts say, does it contain this device or mountpoint? > n22 ~ # umount /mnt/trinity > umount: /mnt/trinity: not mounted -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/