From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dkim1.fusionio.com ([66.114.96.53]:43929 "EHLO dkim1.fusionio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754178Ab3CKXuO (ORCPT ); Mon, 11 Mar 2013 19:50:14 -0400 Received: from mx2.fusionio.com (unknown [10.101.1.160]) by dkim1.fusionio.com (Postfix) with ESMTP id E44487C0435 for ; Mon, 11 Mar 2013 17:50:13 -0600 (MDT) Date: Mon, 11 Mar 2013 19:49:52 -0400 From: Josef Bacik To: Matthew Booth CC: "linux-btrfs@vger.kernel.org" Subject: Re: Unable to boot btrfs filesystem, and btrfsck aborts Message-ID: <20130311234952.GF3058@localhost.localdomain> References: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" In-Reply-To: Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Mon, Mar 11, 2013 at 04:44:58PM -0600, Matthew Booth wrote: > My laptop crashed hard earlier today. It reset immediately to a black > screen followed by the BIOS. I have no idea why. > > However, it now fails to boot. I took a picture of the kernel panic > that results from trying to mount the root filesystem: > https://plus.google.com/107763699965053810188/posts/QZZt7GYzBZi > > To make things worse, btrfsck aborts with a double free, without > fixing it. I took a picture of that, too: > https://plus.google.com/107763699965053810188/posts/gKYqGgFhWyT > > As the kernel panic mentions btrfs_remove_free_space, I also tried > mounting with clear_cache. Unfortunately it didn't dislodge anything. > > This is on a fully updated Fedora 18 system. I would really like to > get this data back. If anybody could offer a suggestion I'd be very > grateful. > This is fixed in 3.9, I'll send those patches back to -stable, sorry I should have done that before now. If you can't get a 3.9 kernel to boot then just use btrfs-zero-log and you'll be good to go. Thanks, Josef