From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from omr-m09.mx.aol.com ([64.12.143.82]:50497 "EHLO omr-m09.mx.aol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932320AbaGUSC4 (ORCPT ); Mon, 21 Jul 2014 14:02:56 -0400 Message-ID: <53CD55CB.5050105@aol.de> Date: Mon, 21 Jul 2014 20:02:51 +0200 From: Karl-Philipp Richter MIME-Version: 1.0 To: Wang Shilong CC: linux-btrfs@vger.kernel.org Subject: Re: `btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags & 1)' failed.` in `btrfsck` References: <53C90CA8.2000104@aol.de> <0BC9DE69-A088-4B5A-95F5-DF863C87C803@gmail.com> In-Reply-To: <0BC9DE69-A088-4B5A-95F5-DF863C87C803@gmail.com> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="VBU7elsDNe9bRoFRdPCjhncODgrR6eq9F" Sender: linux-btrfs-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --VBU7elsDNe9bRoFRdPCjhncODgrR6eq9F Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi, I could `btrfsck --repair` the sparse file with Linux 3.15.6-utopic from http://kernel.ubuntu.com/~kernel-ppa/mainline/ and btrfsck 3.12-1 (from btrfs-tools package in Ubuntu 14.04). Thanks for your hints, Wang! All the best, Karl Am 18.07.2014 14:13, schrieb Wang Shilong: >=20 > Hi, >=20 > There are some patches for fsck flighting, they are integrated in Dav= id's branches. > You can pull from David's latest branch, and see if it helps: >=20 > https://github.com/kdave/btrfs-progs integration-20140704 >=20 > Have a try and see if it helps anyway. >=20 > Thanks, > Wang >=20 >> Hi together, >> I'm experiencing the following issues when I invoke `btrfsck` on a >> sparse file image with a GPT and one (the only) btrfs partition attach= ed >> to a loop device >> >> $ sudo btrfsck --repair --init-csum-tree --init-extent-tree -b >> /dev/loop0p1 >> Incorrect local backref count on 128510738432 root 5 owner 3849475 >> offset 0 found 1 wanted 0 back 0xbab41270 >> backpointer mismatch on [128510738432 4096] >> ref mismatch on [128510742528 12288] extent item 0, found 1 >> btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flag= s >> & 1)' failed. >> >> $ sudo btrfsck --repair --init-csum-tree --init-extent-tree /dev/lo= op0p1 >> Incorrect local backref count on 128510726144 root 5 owner 3849470 >> offset 0 found 1 wanted 0 back 0xbbcb9500 >> backpointer mismatch on [128510726144 12288] >> ref mismatch on [128510738432 4096] extent item 0, found 1 >> adding new data backref on 128510738432 root 5 owner 3849475 offset= >> 0 found 1 >> Backref 128510738432 root 5 owner 3849475 offset 0 num_refs 0 not >> found in extent tree >> Incorrect local backref count on 128510738432 root 5 owner 3849475 >> offset 0 found 1 wanted 0 back 0xbbcb9630 >> backpointer mismatch on [128510738432 4096] >> ref mismatch on [128510742528 12288] extent item 0, found 1 >> btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flag= s >> & 1)' failed. >> >> $ sudo btrfsck --repair /dev/loop0p1 >> Incorrect local backref count on 130861096960 root 5 owner 22733727= >> offset 0 found 1 wanted 0 back 0xc7c7d170 >> backpointer mismatch on [130861096960 8192] >> ref mismatch on [130861105152 8192] extent item 0, found 1 >> btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flag= s >> & 1)' failed. >> >> $ sudo btrfsck --repair /dev/loop0p1 >> Backref 130861096960 root 5 owner 22733727 offset 0 num_refs 0 not >> found in extent tree >> Incorrect local backref count on 130861096960 root 5 owner 22733727= >> offset 0 found 1 wanted 0 back 0xc7f31170 >> backpointer mismatch on [130861096960 8192] >> ref mismatch on [130861105152 8192] extent item 0, found 1 >> btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flag= s >> & 1)' failed. >> >> I'm using `btrfs-progs` 24cf4d8c3ee924b474f68514e0167cc2e602a48d on >> Linux 3.16-rc5 (anything else, i.e. older versions, give me immediate >> error after start because errornous file system) >> >> I'd like to know whether this (assertion) error is related to a bug or= >> missing feature in btrfs-progs and might be fixed at some point or >> whether this might indicate a completely messed up btrfs. >> >> Best regards, >> Karl-P. Richter >> >=20 --VBU7elsDNe9bRoFRdPCjhncODgrR6eq9F Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJTzVXLAAoJEGadKJ8eJ7ZGaVQH/18xhONHgmlnob1UU8gtib8J hH0+WEVCwGE8j6PqD6af01KuiS2a0Cv5qQHmAKeI0idFLfgMPs3A6YU/k6oAA5Rg gkVvZgnfwEgHYEKnyN8BUOdgydP/+MKC/uBjyYm6bW9YY6GGSAIxfOQ9eSMyg8wN WAd1vjJnK7nNAUH1ZP+M/zzT/ILbjB95+Lfc4cVy7x5a6xx9+Qb6d0hlv9Mjcs3w TM8JuN++fOM7iLn21oO6CS+NPYTJvJhI8s646v4lr1pGHS/Z7lDd4nBzDRij8MNR 7hKDSHl1bbyuppIkvJFf7qGzQX8gQOduVrs0FhmOszEVm6KA1/ujmSooR3sZx20= =/uOa -----END PGP SIGNATURE----- --VBU7elsDNe9bRoFRdPCjhncODgrR6eq9F--