From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.nokia.com ([192.100.122.230] helo=mgw-mx03.nokia.com) by bombadil.infradead.org with esmtps (Exim 4.69 #1 (Red Hat Linux)) id 1NzmoH-0002S6-Aj for linux-mtd@lists.infradead.org; Thu, 08 Apr 2010 08:09:58 +0000 Subject: Re: umount of ubifs From: Artem Bityutskiy To: twebb In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Date: Thu, 08 Apr 2010 11:07:59 +0300 Message-ID: <1270714079.6754.95.camel@localhost> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Cc: linux-mtd@lists.infradead.org Reply-To: dedekind1@gmail.com List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, 2010-03-16 at 09:41 -0400, twebb wrote: > I am seeing behavior related to my filesystem that I don't understand. > I'm running 2.6.29 and using UBIFS. The root filesystem is a > ramdisk. Code manually mounts 4 UBI volumes at startup (not > automatically through an fstab file). One of the volumes, "system", > is mounted RO (though the underlying UBI volume is dynamic). On > system shutdown, code umounts all the mounted volumes, and often the > umount of "system" fails. Can someone explain how umounting a RO > filesystem could fail? (I don't think this is a UBIFS issue - I'm > guessing it may be common to all filesystems.) I'd say you should investigate the issue yourself and narrow it down. -- Best Regards, Artem Bityutskiy (Артём Битюцкий)