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=-2.2 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,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 680BDFC6194 for ; Thu, 7 Nov 2019 00:44:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 217A0206C3 for ; Thu, 7 Nov 2019 00:44:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="NO1gERFL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732783AbfKGAol (ORCPT ); Wed, 6 Nov 2019 19:44:41 -0500 Received: from mout.gmx.net ([212.227.15.15]:38251 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732730AbfKGAok (ORCPT ); Wed, 6 Nov 2019 19:44:40 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1573087478; bh=fiViW2nCR4doEY5WE47JhiRaUb9exe6Mn2rNF5/Q0xk=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=NO1gERFLCSYDsGzJTbqCk59BoaEnCHz8rxti1fbIBomAa2HwcOr8fucI5z/3npZr7 jHG30VWqXnsdcTWo+3u3SqeBJ2oM4T0m6QF/5cpmXuCjIZ8gWmB2EhApSmyB/dK+RC gfAspEREp/Ls7Nn7B5Xg6n0IaR+1rb/SN8bGZG5s= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [0.0.0.0] ([13.231.109.76]) by mail.gmx.com (mrgmx004 [212.227.17.184]) with ESMTPSA (Nemesis) id 1MsYv3-1hd9eI2Npb-00tzCS; Thu, 07 Nov 2019 01:44:38 +0100 Subject: Re: fix for ERROR: cannot read chunk root To: Sergiu Cozma Cc: linux-btrfs@vger.kernel.org References: <187ab271-f2be-9e96-e73a-0f6f3e97655a@gmx.com> From: Qu Wenruo Autocrypt: addr=quwenruo.btrfs@gmx.com; prefer-encrypt=mutual; keydata= mQENBFnVga8BCACyhFP3ExcTIuB73jDIBA/vSoYcTyysFQzPvez64TUSCv1SgXEByR7fju3o 8RfaWuHCnkkea5luuTZMqfgTXrun2dqNVYDNOV6RIVrc4YuG20yhC1epnV55fJCThqij0MRL 1NxPKXIlEdHvN0Kov3CtWA+R1iNN0RCeVun7rmOrrjBK573aWC5sgP7YsBOLK79H3tmUtz6b 9Imuj0ZyEsa76Xg9PX9Hn2myKj1hfWGS+5og9Va4hrwQC8ipjXik6NKR5GDV+hOZkktU81G5 gkQtGB9jOAYRs86QG/b7PtIlbd3+pppT0gaS+wvwMs8cuNG+Pu6KO1oC4jgdseFLu7NpABEB AAG0IlF1IFdlbnJ1byA8cXV3ZW5ydW8uYnRyZnNAZ214LmNvbT6JAU4EEwEIADgCGwMFCwkI BwIGFQgJCgsCBBYCAwECHgECF4AWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCXZw1oQAKCRDC PZHzoSX+qCY6CACd+mWu3okGwRKXju6bou+7VkqCaHTdyXwWFTsr+/0ly5nUdDtT3yEVggPJ 3VP70wjlrxUjNjFb6iIvGYxiPOrop1NGwGYvQktgRhaIhALG6rPoSSAhGNjwGVRw0km0PlIN D29BTj/lYEk+jVM1YL0QLgAE1AI3krihg/lp/fQT53wLhR8YZIF8ETXbClQG1vJ0cllPuEEv efKxRyiTSjB+PsozSvYWhXsPeJ+KKjFen7ebE5reQTPFzSHctCdPnoR/4jSPlnTlnEvLeqcD ZTuKfQe1gWrPeevQzgCtgBF/WjIOeJs41klnYzC3DymuQlmFubss0jShLOW8eSOOWhLRuQEN BFnVga8BCACqU+th4Esy/c8BnvliFAjAfpzhI1wH76FD1MJPmAhA3DnX5JDORcgaCbPEwhLj 1xlwTgpeT+QfDmGJ5B5BlrrQFZVE1fChEjiJvyiSAO4yQPkrPVYTI7Xj34FnscPj/IrRUUka 68MlHxPtFnAHr25VIuOS41lmYKYNwPNLRz9Ik6DmeTG3WJO2BQRNvXA0pXrJH1fNGSsRb+pK EKHKtL1803x71zQxCwLh+zLP1iXHVM5j8gX9zqupigQR/Cel2XPS44zWcDW8r7B0q1eW4Jrv 0x19p4P923voqn+joIAostyNTUjCeSrUdKth9jcdlam9X2DziA/DHDFfS5eq4fEvABEBAAGJ ATwEGAEIACYCGwwWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCXZw1rgUJCWpOfwAKCRDCPZHz oSX+qFcEB/95cs8cM1OQdE/GgOfCGxwgckMeWyzOR7bkAWW0lDVp2hpgJuxBW/gyfmtBnUai fnggx3EE3ev8HTysZU9q0h+TJwwJKGv6sUc8qcTGFDtavnnl+r6xDUY7A6GvXEsSoCEEynby 72byGeSovfq/4AWGNPBG1L61Exl+gbqfvbECP3ziXnob009+z9I4qXodHSYINfAkZkA523JG ap12LndJeLk3gfWNZfXEWyGnuciRGbqESkhIRav8ootsCIops/SqXm0/k+Kcl4gGUO/iD/T5 oagaDh0QtOd8RWSMwLxwn8uIhpH84Q4X1LadJ5NCgGa6xPP5qqRuiC+9gZqbq4Nj Message-ID: <1e600b1e-f61b-ab7a-85bc-8bd1710c2ea9@gmx.com> Date: Thu, 7 Nov 2019 08:44:34 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="011q8K551voEroMLyyhcGKco5a4QlfLcn" X-Provags-ID: V03:K1:e2e+lQc/4WvQSG6DKXcFj8dR16y28/QEO4KHQnCm9rvbTH464Kt xxc+N4m+rfOE9M7mz1GPeHikgIC0D+mEDBjeTwnTFZFVsVgw/bRX0rs/TlNOctdgjMWbpLw KEmiq0CQNrOpOpXjGIWXGTBUp6Is6MrR9tL8SO3wacD/dZYFwyZcIaYnq+ausxnqPJOwZoM XFDRgEXnyzaKLi064CKKQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:llx6jIGWXdY=:INnHFcks1yK9yNEis1mJ2J UKX2wau4PY/j1vj/o3deDvOT/BicqQon5UjbOdAzAZ+Cw2+xwKhgr97R5fZDvgF51qRhBBBnI 4JPBXvOgYVIUO/q3xrgBSofzxkQdUrMJRb7fddjvxoZ1RjcZdAtMT3UHISslOyoxb8+8HfmbO dMRPmRk1EmoJsc0Rgo4wwiaZg36vFCfoVYKE63ssrDtNS8hTVSqKxpOnLa7UwnMwyTLvaXVEW UY1n5tZb5cfMuOIh7idjkOU1hUAdC9lqVNKh/SJwNZ9RQaxdLnmgrBZrb+QqgLYBN4oSBLclh W0OZMjvwAJxr7JbzTeuILD4TyV7m2Jrh3mlOvp3Ra6hiNGWiZq6GP9Yolbw+JWiii9kBtz02Z S+KoB6N/gWjGy5HUEfI/6XTqVA4FnapoUOFQLuZc2wUKsGt03b7tBL2dYoU3w6wre9hC2+vZK o+L1Kpo/Rdf04s6fU/wKia81VOmCMnTahPE5OAeyE99qtJb2cniN1wzc0upWo7kWF/D536z6a MfKbddACDMMLFqD37QvFlgVwu3e275hIej7paCr9eBP/jmgFyvfPwOM0dxvVD2epno6PvY2JY 9NbnMDlHHVpyN6F4FIfvi+GMoOf0/cGEpW9Txlz3AlOw50KDacY66YKN7vutaTtNrZ2NWRpRB 96aQXOGeTESX5C2+J0J/kwEtrUBcQTXfTRG3Y1Ws+M5AR//2vjxmxYGZNN5+yhLyUWbehOyuB G4SD3ANNmfoCBIZNuCuBgieotqqNCioXPaSXMsPuO28bik9Qand1d3EQXxcKVAiy3MyS9I+AT fxKeVSMz+u6JOPvoJ+Sm/3SHNLG5CEdZHHkZAC4x5cOAI+xYaXVGfkZz4SLlT2168xIhRkZXv QdyyFrMOWq4TFWKrNzywe4FFHDNF7aBXSpr2OWpP5ngapc4AUC3R/TMprMiAwp3ed91Tjcm4R oqz+RISjuHiobgeGLjR8Xe0LW5dcss0jqcorxQ8l+cKaGK5cZC3x4X8GuISSsNSfFUsG8h7z/ Ss9GjKUpHlFTfOkfRNWEpBzPdFuY9qnw+AV2b569GXYcx8AEql8O7uZ0y4OPX9FOG9P069uhr p+usNuZouCbFN8fA3fpGjqnb3lt+sjPHbc1jV3s7KmRADXIulWirrJ5HC1rEv7IDWgiv4vwGt KRwZc5kuCSbmwWadikb98F7rqk0elzVzL7Iq2I0dWiHoKp17u1WhrG56t3ms6dTQnCJCJL3B1 1nthUOyU8OJAHrmHXeCdGQ3u0yCTDD1vRw4AV5bk0pZ5qmI4lWwO0i3LcKSY= 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) --011q8K551voEroMLyyhcGKco5a4QlfLcn Content-Type: multipart/mixed; boundary="oBskfc0IKKUSn3lAMI8L9caaFQsWu1Ppa" --oBskfc0IKKUSn3lAMI8L9caaFQsWu1Ppa Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2019/11/6 =E4=B8=8B=E5=8D=8811:52, Sergiu Cozma wrote: > Hi, thanks for taking the time to help me out with this. >=20 > The history is kinda bad, I tried to resize the partition but gparted > failed saying that the the fs has errors and after throwing some > commands found on the internet at it now I'm here :( Not sure how gparted handle resize, but I guess it should use btrfs-progs to do the resize? >=20 > Any chance to recover or rebuild the chunk tree? I don't think so. Since it's wiped, there is no guarantee that only chunk tree is wiped. THanks, Qu >=20 >=20 > On Wed, Nov 6, 2019, 13:34 Qu Wenruo wrote: >> >> >> >> On 2019/11/5 =E4=B8=8B=E5=8D=8811:04, Sergiu Cozma wrote: >>> hi, i need some help to recover a btrfs partition >>> i use btrfs-progs v5.3.1 >>> >>> btrfs rescue super-recover https://pastebin.com/mGEp6vjV >>> btrfs inspect-internal dump-super -a https://pastebin.com/S4WrPQm1 >>> btrfs inspect-internal dump-tree https://pastebin.com/yX1zUDxa >>> >>> can't mount the partition with >>> BTRFS error (device sdb4): bad tree block start, want 856119312384 ha= ve 0 >> >> Something wiped your fs on-disk data. >> And the wiped one belongs to one of the most essential tree, chunk tre= e. >> >> What's the history of the fs? >> It doesn't look like a bug in btrfs, but some external thing wiped it.= >> >> Thanks, >> Qu >> >>> [ 2295.237145] BTRFS error (device sdb4): failed to read chunk root >>> [ 2295.301067] BTRFS error (device sdb4): open_ctree failed >>> >> --oBskfc0IKKUSn3lAMI8L9caaFQsWu1Ppa-- --011q8K551voEroMLyyhcGKco5a4QlfLcn Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEELd9y5aWlW6idqkLhwj2R86El/qgFAl3DaPIACgkQwj2R86El /qjd1gf/W5zi8Tqob5WRQaqtU0uBnYHHEiKAy2EWA2J52irsK7H3M/3kLn0H+qur Ng03OtKWgS8eeUa1DKMczezfvglr+eWnMTNY4wqal0CJnPpmX1cH0300tbSEcVOU hnsiZpJtci5HrPP51RslrqZy0f9l6WaI5zCbW5K/6I7t6BXpkorfu0ERcalJgbQJ 4nODziu73fPsJRQF1YEYnDb0/WD7ilSnqiReB61G6Ff+YCEHBl2+Ba/hmg3lVN8G 4RtyxswMpcsqQ86tmHkxBHB7HpnZHvL76zg4xxulU2X3DlaUbmh9Lhzm+rWPp8fy IQCI2GOcznf4PtfgtjC5DwFdQYHw9w== =4tUs -----END PGP SIGNATURE----- --011q8K551voEroMLyyhcGKco5a4QlfLcn--