From: Nix Subject: Re: Apparent serious progressive ext4 data corruption bug in 3.6.3 (and other stable branches?) Date: Wed, 24 Oct 2012 21:45:47 +0100 Message-ID: <878vavtx8k.fsf@spindle.srvr.nix> References: <87objupjlr.fsf@spindle.srvr.nix> <20121023013343.GB6370@fieldses.org> <87mwzdnuww.fsf@spindle.srvr.nix> <20121023143019.GA3040@fieldses.org> <874nllxi7e.fsf_-_@spindle.srvr.nix> <87pq48nbyz.fsf_-_@spindle.srvr.nix> <508740B2.2030401@redhat.com> <87txtkld4h.fsf@spindle.srvr.nix> <50876E1D.3040501@redhat.com> <20121024052351.GB21714@thunk.org> <878vavveee.fsf@spindle.srvr.nix> Mime-Version: 1.0 Content-Type: text/plain Cc: Eric Sandeen , linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, "J. Bruce Fields" , Bryan Schumaker , Peng Tao , Trond.Myklebust@netapp.com, gregkh@linuxfoundation.org, Toralf =?utf-8?Q?F=C3=B6rster?= To: "Theodore Ts'o" Return-path: Received: from icebox.esperi.org.uk ([81.187.191.129]:60473 "EHLO mail.esperi.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757672Ab2JXUqA (ORCPT ); Wed, 24 Oct 2012 16:46:00 -0400 In-Reply-To: <878vavveee.fsf@spindle.srvr.nix> (nix@esperi.org.uk's message of "Wed, 24 Oct 2012 20:49:45 +0100") Sender: linux-ext4-owner@vger.kernel.org List-ID: On 24 Oct 2012, nix@esperi.org.uk spake thusly: > So, the net effect of this is that normally I get no journal recovery on > anything at all -- but sometimes, if umounting takes longer than a few > seconds, I reboot with not everything unmounted, and journal recovery > kicks in on reboot. It occurs to me that it is possible that this bug hits only those filesystems for which a umount has started but been unable to complete. If so, this is a relatively rare and unimportant bug which probably hits only me and users of slow removable filesystems in the whole world... -- NULL && (void)