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=-0.5 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 84B94C31E46 for ; Wed, 12 Jun 2019 14:22:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 50DB420866 for ; Wed, 12 Jun 2019 14:22:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="IEIpNS/H" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2409334AbfFLOWM (ORCPT ); Wed, 12 Jun 2019 10:22:12 -0400 Received: from mout.gmx.net ([212.227.15.15]:42321 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726533AbfFLOWL (ORCPT ); Wed, 12 Jun 2019 10:22:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1560349327; bh=iyxwzayH5NNGV4ncYc2JKijh0S2iGV6XzCH2b2htSFY=; h=X-UI-Sender-Class:Subject:To:References:From:Date:In-Reply-To; b=IEIpNS/HKDA0n89NhLyMsnzQ9lCtEarQ8kdtqIYUWjCcLN9RoJ2pLfyS7rAvEzjzo bWoVAgkEz3oc58AgiduWjVkpYr/ZSmwZiytNpt5xuKNGZ3l1B7paxsQsSYCnsRoA+r nsG4Gm3oLSqTjg6Z0en00gKcAZ4gV2Aas69oqlU4= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [0.0.0.0] ([54.250.245.166]) by mail.gmx.com (mrgmx003 [212.227.17.184]) with ESMTPSA (Nemesis) id 0LjZhg-1iCakI10lk-00bahs; Wed, 12 Jun 2019 16:22:07 +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> <2675522.6BlBp3bEyT@ernnb113> <1acbfdec-0e7e-7be7-3612-7dea01db4df2@gmx.com> <33202605.PZYGi36h5c@ernnb113> From: Qu Wenruo Openpgp: preference=signencrypt Autocrypt: addr=quwenruo.btrfs@gmx.com; 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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <33202605.PZYGi36h5c@ernnb113> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="ireoL4NSBemhkTnkvdTSI32U4HvzwDWK8" X-Provags-ID: V03:K1:2jFAGwJQu+1CQru4Eg8bzpZYT5s7+lNEMpBQDQsxQxKzAGqpVZE GFrBPLMBSsN0qY9yfS+1fWbSZM95J+8Y4Qh2UMYDc+69pEU88KqfMEM+jsdrf/pyDzSOJrk UbrN7LcWy2HoHJwQLxGHzd5exeKeDwjuh4mptYq1AwkcUbY5Yx/EB7KXv3wFjKZwGgrFKdd zmOWQQNnzwzeUX6XqQ+Jw== X-UI-Out-Filterresults: notjunk:1;V03:K0:aTqR2BuguUk=:mUrDE1QrTswSn+o6NL8t8h RftaME0pf54o3AoSzBJij+lAuSXOUlyyT3r6nywlwVmQeaZtVM+sqfPkos0tknJBJ4AlUtw47 3Ya1CNA4HPRq74bCqb0cGHq/V6XVZe31E1m+QIW0SnUugqRwZwHxSTfTHN3O+z8F77e4FGoMV YRRfUqQWOJUDSJI/z5MVOampCzIwTjQF4iD96SNNGlU5CJDbZqndckfw5BjaPa9hLai1vlJHn KaiWqN1Miqtwgk5QuUuGvvSwEerGeXcJhpw7hJD+qsHkw5rTlhvKUjG1219+kXeNaC1svOfC1 SV7KVHgPu2GK0LdYRmHLjcNO3s274+IYWBigEAMATmy5FNB5hn8vgc9JfhvqtQ9NZGZX/thwp tB1iSZzFJkTKkH1OjU9LzDDZCtOh+u3TFIT8e1DpGV1137L0DVyQvrgnA02P/XPJ6Lhm1Stct Y/xQouo5d24AlnwwGGyKkD1RxhSL+cJqWhJpLS2ZXpf22pB6UypMzeszXu/9e8iqocfrGzDm7 dh4QSqVeUBF7VFWGfALBeiWYc7RzT1trlHBmQllTizvp8V3jtg/NmpsCrOmgq+4leHWYUgRtJ U/SI41fmrPsFFdHhQckLgpiRFjkjNx37B4XW11wz+x0Ut1ArXjoPNwiq7M6l0DhWs6vSi0P2B 4GZMhUQOjYWgP6a2p3KGpsaPlNfKLnz/AwNnuFOat6PuQXBv5DfEq5NgGMDSAKkct8JbTVhDk J7ofG7H1iY0W1RhrLdxG0tzGNKp2lSnUXX226dJDamFUsSqaSJE7CppX/g9jhUbedtWSNo4fS do4iIKMtmEveeC4FwxVjSfor1IFyW12ctFHMJxkqIvrvChq/thNS6i2wrgn3+qUnDSgqyN1Rs vnuoN1Yy7pT35jyoUIOf6yXaxFhArUOivI4XADAe8wonXFaSbL71DwmZfxhArFVNONleeh7bZ 2PuRj+JJVyDADYsOwzTIN6Vz1L9rBhJU= 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) --ireoL4NSBemhkTnkvdTSI32U4HvzwDWK8 Content-Type: multipart/mixed; boundary="lxurSxFMcaFWvU8iPOmIuNG097VuRTmX0"; 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> <2675522.6BlBp3bEyT@ernnb113> <1acbfdec-0e7e-7be7-3612-7dea01db4df2@gmx.com> <33202605.PZYGi36h5c@ernnb113> In-Reply-To: <33202605.PZYGi36h5c@ernnb113> --lxurSxFMcaFWvU8iPOmIuNG097VuRTmX0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2019/6/12 =E4=B8=8B=E5=8D=8810:12, marcos k. wrote: > Hallo again, >=20 > =C2=A0 >=20 > On Wednesday, 12 June 2019 15.47.49 CEST you wrote: >=20 >> > The patch helped me a lot !!! ;-)) After compiling a new btrfs >=20 >> > kernel-module with your small patch, the filesystem just mounted! Af= ter >=20 >> > a "scub" and "balance" of the btrfs filesystem, it could be mounted = with >=20 >> > the regular btrfs kernel-module. So far so good ... >=20 >> > >=20 >> > After another full backup (rsync) of the home-directory I checked th= e >=20 >> > filesystem again. The btrfs check indicated a lot of errors. >=20 >> >=20 >> Would you mind to share the output? >=20 >> >=20 > Strange enough I found a "check --repair" output of the corrupted > homefs. But the filesystem does not exist any more. I will attach the > output. So indeed some corruption. Some corruption in extent tree and some in fs tree. I'd say the corruption is pretty serious, not some simple one. But surprisingly, the btrfs-progs --repair doesn't make things worse. Either you're using the latest btrfs-progs or you're lucky. (older btrfs-progs could easily further corrupt the fs if btrfs check aborted). >=20 > =C2=A0 >=20 > The png-files are cached icons from "~/.cache/thumbnails" > . It seems that most of the errors are cached data. To me, it looks like a failed metadata CoW. Would you mind to share about the layout of dm-2? Recently we have some reports of failed data/metadata CoW on device mapper devices. Not sure if dm is contributing to the problem. >=20 >> >=20 >> If scrub shows no error but check reports, then there is something wro= ng >=20 >> in metadata, but not some serious corruption to prevent btrfs to read >=20 >> the tree blocks. >=20 >> >=20 >> > I tried to >=20 >> > remove all files and all directories (except the subvolume dirs) but= >=20 >> > cloudn't. I tried to check --repair, check --init-csum-tree >=20 >> > , check --init-extent-tree the remainig files but without success. >=20 >> >=20 >> --init-csum/extent-tree normally makes no sense, except some special c= ase. >=20 >> And if --repair doesn't help, we need the original output to determine= >=20 >> what's wrong. >=20 >> >=20 > Yes I read about normaly not using --init-csum/extent-tree. Therefor I > did "check --repair" on the remaining files and dirs, then tried to > remove them, then did another "check --repair" on the remaining files, > tried to remove them .... So only after a lot of tries with "check > --repair" I did a last test with "--init-csum/extent-tree" and another > "check --repair", which did not help. Some dirs e.g. in > /home/user/.cache could not be removed. I remember --repair should have the ability to repair mismatch in INODE_ITEM/DIR_ITEM/DIR_INDEX. I may need to double check the repair code for that part. Thanks, Qu >=20 >> >=20 >> Thanks, >=20 >> Qu >=20 >> >=20 >> > I had to make a new btrfs over the old one. After copying all the da= ta >=20 >> > back, everything is good now. >=20 >> > >=20 >> > =C2=A0 >=20 >> > >=20 >> > Maybe a switch would be helpful to mount "old"-btrfses. Some user mi= ght >=20 >> > not be able to patch and compile kernel-mudules. At least everybody >=20 >> > should be informed to balance his "old" btrfs. >=20 >> > >=20 >> > =C2=A0 >=20 >> > >=20 >> > Thanks a lot, marcos. k. >=20 >> > >=20 >> > =C2=A0 >=20 >> > >=20 >> > =C2=A0 >=20 >> > >=20 >> > =C2=A0 >=20 > =C2=A0 >=20 > =C2=A0 >=20 --lxurSxFMcaFWvU8iPOmIuNG097VuRTmX0-- --ireoL4NSBemhkTnkvdTSI32U4HvzwDWK8 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEELd9y5aWlW6idqkLhwj2R86El/qgFAl0BCokACgkQwj2R86El /qgHcgf8D04meBEogHD0jKpb6RFVko4D0tJTFlcO4lerpcWv5fAURbJ/hVKixdT1 pQsZjvYEAo8k8FGfHZcHDq4eWTUeWzkC40uRL6ctIHNhTUGnP0eJ9aaOgAZUPns6 PGOYOmFWdbErSa7D53MAN6Ljh6CYOpjCZ0Q9WRKKIJ++CCdqtLBGA72wKcFYcp/W kdIp3xx8PrnYdBLPQtubNhKOtP+MFuDMb5cCz13zefiJZnl7xQBk7FFBSJNc3+5W NXjtq203mw4+ApyiAaJChAtFe5dirAVax8lGpygFGFAGtHupUN5yEKRcxDY4ua+Z ErQhvlRNfPhi+1EWyVlwON2j5C9T3w== =X7/Q -----END PGP SIGNATURE----- --ireoL4NSBemhkTnkvdTSI32U4HvzwDWK8--