From: Matt Parnell Subject: Re: Bug In ext4 in kernels > 2.6.39 - Not mounting with arguments/options I specify in fstab on root remount Date: Thu, 20 Oct 2011 22:29:49 -0500 Message-ID: <4EA0E72D.8020305@gmail.com> References: <4E6F1B49.3010803@gmail.com> <4E6F6D89.5040905@redhat.com> <20111009234433.GU7948@thunk.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Eric Sandeen , linux-ext4@vger.kernel.org To: Ted Ts'o Return-path: Received: from mail-iy0-f174.google.com ([209.85.210.174]:63013 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751138Ab1JUD3M (ORCPT ); Thu, 20 Oct 2011 23:29:12 -0400 Received: by iaek3 with SMTP id k3so4187653iae.19 for ; Thu, 20 Oct 2011 20:29:11 -0700 (PDT) In-Reply-To: <20111009234433.GU7948@thunk.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: The output of /proc/cmdline on 3.0.7: BOOT_IMAGE=/boot/vmlinuz26-zen root=/dev/sdb1 ro rootfstype=ext4 rootflags=data=writeback noatime nodiratime barrier=0 discard noinitrd On 10/09/2011 06:44 PM, Ted Ts'o wrote: > On Sun, Oct 09, 2011 at 05:10:54PM -0500, Matt Parnell wrote: >> /proc/mounts (as you can see it's not being remounted rw for some >> reason - /dev/sdc1 is the flash drive I used to pipe this info onto): >> >> rootfs / rootfs rw 0 0 >> /dev/root / ext4 ro,relatime,barrier=1 0 0 > Can you send me the output of /proc/cmdline? It looks like the > rootflags command line option isn't getting passed to the kernel for > some reason. That would explain why data=writeback isn't showing up > in /proc/mounts. > > - Ted