From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from james.kirk.hungrycats.org ([174.142.39.145]:44277 "EHLO james.kirk.hungrycats.org" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751907AbaJXCFx (ORCPT ); Thu, 23 Oct 2014 22:05:53 -0400 Date: Thu, 23 Oct 2014 22:05:50 -0400 From: Zygo Blaxell To: Robert White Cc: linux-btrfs@vger.kernel.org Subject: Re: Check tree block failed, want=17716610236416, have=0 Message-ID: <20141024020545.GD17380@hungrycats.org> References: <20141023231622.GC17395@hungrycats.org> <54499D4A.9050204@pobox.com> <20141024012448.GC17380@hungrycats.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="J5MfuwkIyy7RmF4Q" In-Reply-To: <20141024012448.GC17380@hungrycats.org> Sender: linux-btrfs-owner@vger.kernel.org List-ID: --J5MfuwkIyy7RmF4Q Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Oct 23, 2014 at 09:24:48PM -0400, Zygo Blaxell wrote: > On Thu, Oct 23, 2014 at 05:28:58PM -0700, Robert White wrote: > > You may be in deep error land from the long use of 3.10... that > > said, the --init-csum-tree or --init-extent-tree options may be your > > friend here. The backtrace shows you are in "open_ctree" so the > > former is more likely the better bet. Alas, both fail: # btrfs check --repair --init-csum-tree --init-extent-tree /dev/mapper/md15 enabling repair mode Creating a new CRC tree Couldn't open file system Same result with each option individually, except that when --init-csum-tree is absent, so is the "Creating a new CRC tree" message. I'm also trying 'btrfs rescue chunk-recover -v' but so far it has read many gigabytes but not had much to say. (LVM snapshots + kvm = attack this filesystem with multiple tools at once :-) --J5MfuwkIyy7RmF4Q Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlRJs/kACgkQgfmLGlazG5z0OwCfYNTELrNhwdIIB9ej66z5DLZY 9gAAoK1PScXeuIDJNXxMgNNUatFSn3ej =mZtT -----END PGP SIGNATURE----- --J5MfuwkIyy7RmF4Q--