From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EED82C2BCA1 for ; Fri, 7 Jun 2019 11:57:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AC66120868 for ; Fri, 7 Jun 2019 11:57:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="iaAfYuva" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727672AbfFGL5d (ORCPT ); Fri, 7 Jun 2019 07:57:33 -0400 Received: from mout.gmx.net ([212.227.15.19]:40207 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727388AbfFGL5d (ORCPT ); Fri, 7 Jun 2019 07:57:33 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1559908643; bh=4ejKNyooNnJyTtfL5kpJ9xEQc5MGlLYN1mznBMXIO0s=; h=X-UI-Sender-Class:Subject:To:References:From:Date:In-Reply-To; b=iaAfYuva5kOvXiY8IFQRvd+EF5ZbrOp5hCL7rzqrXpP5c9VruJmze6FEOZot4cjN5 7rY/jDPnI8ZDgi0+8tz6RmD6vUC8shJFAQZ6rNyE8mkY/iXK8KcDWDxk1vv834iilF ozDrDAdKH8C+wLT8JZzUaftgNtEX5Hx0GH6t5vgY= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [0.0.0.0] ([54.250.245.166]) by mail.gmx.com (mrgmx005 [212.227.17.184]) with ESMTPSA (Nemesis) id 1M6Db0-1hSbnO3S36-006c2A; Fri, 07 Jun 2019 13:57:23 +0200 Subject: Re: btrfs progs v5.1: tree block bytenr 0 is not aligned to sectorsize 4096 To: "marcos k." , linux-btrfs@vger.kernel.org References: <3057842.IWvHFmXsFP@ernsv0> From: Qu Wenruo Openpgp: preference=signencrypt Autocrypt: addr=quwenruo.btrfs@gmx.com; prefer-encrypt=mutual; keydata= mQENBFnVga8BCACyhFP3ExcTIuB73jDIBA/vSoYcTyysFQzPvez64TUSCv1SgXEByR7fju3o 8RfaWuHCnkkea5luuTZMqfgTXrun2dqNVYDNOV6RIVrc4YuG20yhC1epnV55fJCThqij0MRL 1NxPKXIlEdHvN0Kov3CtWA+R1iNN0RCeVun7rmOrrjBK573aWC5sgP7YsBOLK79H3tmUtz6b 9Imuj0ZyEsa76Xg9PX9Hn2myKj1hfWGS+5og9Va4hrwQC8ipjXik6NKR5GDV+hOZkktU81G5 gkQtGB9jOAYRs86QG/b7PtIlbd3+pppT0gaS+wvwMs8cuNG+Pu6KO1oC4jgdseFLu7NpABEB AAG0IlF1IFdlbnJ1byA8cXV3ZW5ydW8uYnRyZnNAZ214LmNvbT6JAVQEEwEIAD4CGwMFCwkI BwIGFQgJCgsCBBYCAwECHgECF4AWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCWdWCnQUJCWYC bgAKCRDCPZHzoSX+qAR8B/94VAsSNygx1C6dhb1u1Wp1Jr/lfO7QIOK/nf1PF0VpYjTQ2au8 ihf/RApTna31sVjBx3jzlmpy+lDoPdXwbI3Czx1PwDbdhAAjdRbvBmwM6cUWyqD+zjVm4RTG rFTPi3E7828YJ71Vpda2qghOYdnC45xCcjmHh8FwReLzsV2A6FtXsvd87bq6Iw2axOHVUax2 FGSbardMsHrya1dC2jF2R6n0uxaIc1bWGweYsq0LXvLcvjWH+zDgzYCUB0cfb+6Ib/ipSCYp 3i8BevMsTs62MOBmKz7til6Zdz0kkqDdSNOq8LgWGLOwUTqBh71+lqN2XBpTDu1eLZaNbxSI ilaVuQENBFnVga8BCACqU+th4Esy/c8BnvliFAjAfpzhI1wH76FD1MJPmAhA3DnX5JDORcga CbPEwhLj1xlwTgpeT+QfDmGJ5B5BlrrQFZVE1fChEjiJvyiSAO4yQPkrPVYTI7Xj34FnscPj /IrRUUka68MlHxPtFnAHr25VIuOS41lmYKYNwPNLRz9Ik6DmeTG3WJO2BQRNvXA0pXrJH1fN GSsRb+pKEKHKtL1803x71zQxCwLh+zLP1iXHVM5j8gX9zqupigQR/Cel2XPS44zWcDW8r7B0 q1eW4Jrv0x19p4P923voqn+joIAostyNTUjCeSrUdKth9jcdlam9X2DziA/DHDFfS5eq4fEv ABEBAAGJATwEGAEIACYWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCWdWBrwIbDAUJA8JnAAAK CRDCPZHzoSX+qA3xB/4zS8zYh3Cbm3FllKz7+RKBw/ETBibFSKedQkbJzRlZhBc+XRwF61mi f0SXSdqKMbM1a98fEg8H5kV6GTo62BzvynVrf/FyT+zWbIVEuuZttMk2gWLIvbmWNyrQnzPl mnjK4AEvZGIt1pk+3+N/CMEfAZH5Aqnp0PaoytRZ/1vtMXNgMxlfNnb96giC3KMR6U0E+siA 4V7biIoyNoaN33t8m5FwEwd2FQDG9dAXWhG13zcm9gnk63BN3wyCQR+X5+jsfBaS4dvNzvQv h8Uq/YGjCoV1ofKYh3WKMY8avjq25nlrhzD/Nto9jHp8niwr21K//pXVA81R2qaXqGbql+zo Message-ID: Date: Fri, 7 Jun 2019 19:57:14 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <3057842.IWvHFmXsFP@ernsv0> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="q1w6Vgv9viQQgr3OfCg8dSe33dMy7R7Xt" X-Provags-ID: V03:K1:9PGlDRiZxJBaIIeN99Q6iM+C66ezMb0ceL8Eqp8NOGvULjEoPNM bIHFvKYK/VxL8NjpTFT7woQzMkyLZ6qOQ3UIOXpoznYjoc6FIsUlgePpfD1PmDNL9uMUWrS Sw+doCl2KpRZlF6Pwn67S8psPzK0LKld1D/ANxR8TESzEuDl+mUvNLXD+A6Qkn0qSgRQFD0 iwxPu/sBrEOuUqM/Tha7g== X-UI-Out-Filterresults: notjunk:1;V03:K0:jp5ZPwZYYSk=:UbmnktkWP3VGQxWS5JJ6RX 5uaiwsIKwXkQEiclAQUfsQq9hUmeZkds9aM4K4Gd0x9XiVUmo6UuisveOT+6e6q4ZDYXS3Yxm kpphkw8BoRhFownDzV04tdhrIfn4pupirjw2nV/BHINCzcw0fudZNdhTasqWJruLWhY/HZ/Qz fAK0NJamaOIzUjo+LUAOuHdDrjAVqXQe+KhetsgcnOt2c3tYfhLLp4uEkZjdFL7xL4XU95ZNt fxN/v4Pfo0Xf4fwzZ8jS50YnMuMC+nJBbGI23lbDlqCQOCbrYRCKcomQoRwDsyJg0YzZZG2zc 8wnANR9aAL25g0FiOI8dgSg4f2Fk9TSGdpELdy4PRW2UI1+aptFw2VY7vFteN28BURpB9xnoP ikGDVmue+6/VSolaFvJpFVrjwd47T4QutEUiop1WPcdJryeu3aDlpn2QsSw8JNwXcezJ1HBxf qAj5WBRXZiFQUSzi+MwSgy7BMkT06hFLRzjUeY/eflvGKUxopigwqYGPkJYq8J0xQlNUIC2LM y/P7+H7x2+TTiuu8GED7nianlNoQiU2xjFhpzH9z7N9BQzWWAQs1wADvSPzo0pW5G4H3YZH2Q F9e39Hy8L64HuM5GIMIhayq8KSQRCk0noFAdHraeBTSUrjGCLp5iMgL3U7T6Zm7TNgGJrb8PR OIldIpseiYUF7Ionc2xcfZrIBx0KNG4hn5CW0ySQmR/G3yVnHne3BRmbA1z5nCEJJLkOaDB1t Z7mV/hPYKrpEig890tgqFv+RIU88jRO35XLLv38qquP5498WwZLEj1yKsRcj7PgJyvyQwJMmi yZFiybmdFq7uEqq99A6KDHskYrJzEUrp06EOpvuq+fIpoDKPVk+7VFPW3+TI9z4wq7oOdCQqE uMe3YGhHONURJLh29eq5QYXoL6r1agmmB8mb36cU4Sps6Q4b9Iq38qiQIvJ1lwx8Z8FD4Qlll xx9inr/Jwrhc/k3dKv/+zAOXU0puRkLA= Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --q1w6Vgv9viQQgr3OfCg8dSe33dMy7R7Xt Content-Type: multipart/mixed; boundary="hqugwkVZBBASK4e6YiNKx7npnQG2Db9sc"; protected-headers="v1" From: Qu Wenruo To: "marcos k." , linux-btrfs@vger.kernel.org Message-ID: Subject: Re: btrfs progs v5.1: tree block bytenr 0 is not aligned to sectorsize 4096 References: <3057842.IWvHFmXsFP@ernsv0> In-Reply-To: <3057842.IWvHFmXsFP@ernsv0> --hqugwkVZBBASK4e6YiNKx7npnQG2Db9sc Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2019/6/7 =E4=B8=8B=E5=8D=886:40, marcos k. wrote: > Hallo to all of you, > and sorry for asking the very specialists directly,=20 > but I found no useful answer to my problem. >=20 > my btrfs-filesystem is corrupt and can not be mounted=3D=3D> > btrfsprogs v5.1 and btrfsprogs v4.15.1 > # btrfs check /dev/dm-2 > ERROR: tree block bytenr 0 is not aligned to sectorsize 4096 Although the error message is not good for human to read, the tree block bytenr 0 means some tree block is definitely corrupted. >=20 > BUT btrfsprogs v4.4 can at least check the filesystem and I have (limit= ed) > access to it. Still can not mount ... >=20 > I would appreciate it very much, if someone could give me a hint, > marcos k. >=20 > =3D=3D=3D=3D=3D=3D=3D output =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D ou= tput =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > lap13:~ # uname -a=20 > Linux ernnb113 5.1.5-1-default #1 SMP Mon May 27 07:14:33 UTC 2019 (6ad= 4f79) x86_64 x86_64 x86_64 GNU/Linux >=20 > lap13:~ # btrfs --version=20 > btrfs-progs v5.1=20 >=20 > lap13:~ # btrfs fi show=20 > Label: 'rootfs' uuid: 0fe9bec5-fd4e-4a4b-a855-b0412d9916a4 > Total devices 1 FS bytes used 134.48GiB > devid 1 size 310.13GiB used 143.06GiB path /dev/mapper/linux= vg-rootlv >=20 > Label: 'homefs' uuid: d3659317-3d28-42f0-beb3-2480fb2b0900 > Total devices 1 FS bytes used 406.77GiB > devid 1 size 590.00GiB used 577.00GiB path /dev/mapper/linux= vg-homelv >=20 > lap13:~ # btrfs fi df /dev/dm-2=20 > ERROR: not a btrfs filesystem: /dev/dm-2 >=20 > lap13:~ # dmesg | grep -i btrfs > [ 7.485437] Btrfs loaded, crc32c=3Dcrc32c-intel, assert=3Don > [ 7.487711] BTRFS: device label rootfs devid 1 transid 3190209 /dev/= dm-1 > [ 7.616145] BTRFS info (device dm-1): disk space caching is enabled > [ 7.616148] BTRFS info (device dm-1): has skinny extents > [ 7.662371] BTRFS info (device dm-1): enabling ssd optimizations > [ 8.263761] BTRFS info (device dm-1): turning on discard > [ 8.263763] BTRFS info (device dm-1): disk space caching is enabled > [ 8.998829] BTRFS info (device dm-1): device fsid 0fe9bec5-fd4e-4a4b= -a855-b0412d9916a4 devid 1 moved old:/dev/mapper/linuxvg-rootlv new:/dev/= dm-1 > [ 8.999507] BTRFS info (device dm-1): device fsid 0fe9bec5-fd4e-4a4b= -a855-b0412d9916a4 devid 1 moved old:/dev/dm-1 new:/dev/mapper/linuxvg-ro= otlv > [ 10.484594] BTRFS: device label homefs devid 1 transid 2087298 /dev/= dm-2 > [ 10.520725] BTRFS info (device dm-2): turning on discard > [ 10.520728] BTRFS info (device dm-2): disk space caching is enabled > [ 10.520730] BTRFS info (device dm-2): has skinny extents > [ 10.522139] BTRFS critical (device dm-2): corrupt node: root=3D3 blo= ck=3D16384 slot=3D0, invalid NULL node pointer Kernel tree checker also detects such problem. Your chunk tree is corrupted, with one node slot pointing to bytenr 0. Normally we shouldn't have a system chunk at logical bytenr 0, but it's also possible that all those existing check is too strict. Would you please provide the following info? # btrfs ins dump-super -fa /dev/dm-2 If there is no system chunk at bytenr 0, then it must be some strange thing happened in your fs. Thanks, Qu > [ 10.523238] BTRFS error (device dm-2): failed to read chunk root > [ 10.545271] BTRFS error (device dm-2): open_ctree failed >=20 > lap13:~ # btrfs check /dev/dm-2 > ERROR: tree block bytenr 0 is not aligned to sectorsize 4096 > Couldn't read chunk tree > ERROR: cannot open file system > Opening filesystem to check... >=20 > lap13:~ # btrfs rescue super-recover /dev/dm-2 > All supers are valid, no need to recover >=20 > lap13 :~ # btrfs rescue chunk-recovery /dev/dm-2 > Scanning: DONE in dev0 > Check chunks successfully with no orphans > Chunk tree recovered successfully >=20 > lap13:~ # btrfs check /dev/dm-2 > ERROR: tree block bytenr 0 is not aligned to sectorsize 4096 > Couldn't read chunk tree > ERROR: cannot open file system > Opening filesystem to check... >=20 >=20 >=20 --hqugwkVZBBASK4e6YiNKx7npnQG2Db9sc-- --q1w6Vgv9viQQgr3OfCg8dSe33dMy7R7Xt Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEELd9y5aWlW6idqkLhwj2R86El/qgFAlz6URoACgkQwj2R86El /qjFlQf+MAYV6Nvf8evlTxItH/xQpEhaXDebG8JfM9WNKLDzLXuSqbMX9r2YJyqf +rXGIs1fo+E7HrbDRvz+KLcbrqnOdU7r41/eWI3SKd0gZpD/Wkn5KAIdpocIEyKi hsA+oSyb0nq2bnPL9RgAMmx8x2t8SGmYEZaiyXrDHUdlXrI3dPoWakozkVX6N8Vc CCndLXi/78yIcshAK6GANMysw5/3dqCIqIeG0+pVvYjDZOqzw8MkXoZKV4HBU+n1 tznriOY0m0BHx7dQyWm002wV7bFSq5W87Yza1Fbx2BYiOIkJ6y+5idF1SF4qq/HR hjh14T5HRPeFBqblassJietx86nlHg== =KE2b -----END PGP SIGNATURE----- --q1w6Vgv9viQQgr3OfCg8dSe33dMy7R7Xt--