From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755614Ab2IQNw1 (ORCPT ); Mon, 17 Sep 2012 09:52:27 -0400 Received: from li9-11.members.linode.com ([67.18.176.11]:51081 "EHLO imap.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755537Ab2IQNwY (ORCPT ); Mon, 17 Sep 2012 09:52:24 -0400 Date: Mon, 17 Sep 2012 09:52:15 -0400 From: "Theodore Ts'o" To: Dmitry Monakhov Cc: Marti Raudsepp , Kernel hackers , ext4 hackers , maze@google.com Subject: Re: NULL pointer dereference in ext4_ext_remove_space on 3.5.1 Message-ID: <20120917135215.GA26919@thunk.org> Mail-Followup-To: Theodore Ts'o , Dmitry Monakhov , Marti Raudsepp , Kernel hackers , ext4 hackers , maze@google.com References: <20120816024654.GB3781@thunk.org> <87fw6get5z.fsf@openvz.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87fw6get5z.fsf@openvz.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@thunk.org X-SA-Exim-Scanned: No (on imap.thunk.org); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 17, 2012 at 04:21:44PM +0400, Dmitry Monakhov wrote: > On Wed, 15 Aug 2012 22:46:54 -0400, Theodore Ts'o wrote: > > On Wed, Aug 15, 2012 at 09:33:29PM +0300, Marti Raudsepp wrote: > > > I was moving and deleting some files between two of my ext4 partitions > > > when it suddenly crashed and dropped me into an kernel oops screen > > > (below). I'm using ext4 on kernel 3.5.1 (Arch Linux). > Ohh, I've missed that gigantic topic, but still i've found the bug. > patch is available here http://patchwork.ozlabs.org/patch/183649/ Dmitry, we have a patch in mainline already which addresses this, and it's already backported to v3.5.3 or later. What version was your patch series based against? - Ted