From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932513AbaE2L33 (ORCPT ); Thu, 29 May 2014 07:29:29 -0400 Received: from mx1.redhat.com ([209.132.183.28]:30125 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932373AbaE2L32 (ORCPT ); Thu, 29 May 2014 07:29:28 -0400 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <27993.1401360881@warthog.procyon.org.uk> References: <27993.1401360881@warthog.procyon.org.uk> <1400838223-30844-1-git-send-email-miklos@szeredi.hu> To: Miklos Szeredi Cc: dhowells@redhat.com, viro@ZenIV.linux.org.uk, torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, hch@infradead.org, akpm@linux-foundation.org, apw@canonical.com, nbd@openwrt.org, neilb@suse.de, jordipujolp@gmail.com, ezk@fsl.cs.sunysb.edu, sedat.dilek@gmail.com, hooanon05@yahoo.co.jp, mszeredi@suse.cz Subject: Re: Kernel errors with overlay filesystem v22 Date: Thu, 29 May 2014 12:28:45 +0100 Message-ID: <28313.1401362925@warthog.procyon.org.uk> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This sequence of commands produces both errors: mount -t tmpfs lower_layer /lower mount -t tmpfs upper_layer /upper mkdir /upper/upper mkdir /upper/work mount -t overlayfs overlayfs /mnt -olowerdir=/lower,upperdir=/upper/upper,workdir=/upper/work # The lockdep error was reported in the above mount command umount /mnt umount /upper # The dentry leak error was reported in the last umount command where /lower, /upper and /mnt are preexisting directories. Note that prior to this, mounting and unmounting a tmpfs filesystem worked with no errors. David