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 9DFB9C5DF63 for ; Wed, 6 Nov 2019 11:34:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6F3EF2077C for ; Wed, 6 Nov 2019 11:34:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="RAPrVRqx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728300AbfKFLe5 (ORCPT ); Wed, 6 Nov 2019 06:34:57 -0500 Received: from mout.gmx.net ([212.227.17.21]:34899 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725856AbfKFLe5 (ORCPT ); Wed, 6 Nov 2019 06:34:57 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1573040095; bh=bT4B4/ZOdIoeTcbbGJFPa8JB6wbkiD4DQWiuAOEXLUA=; h=X-UI-Sender-Class:Subject:To:References:From:Date:In-Reply-To; b=RAPrVRqxymAArXnp/y0bV7KM4imsnJaXPVrr4zdW1CM6uDaqHZcdIcmVu9ZICqfWv tvYVVQ1dhYg8DPGvDQQiroq9R46Jr/SfUnbmIAn0HoR5XEF1tUWTbF7h6oLRjOhOs0 4M9L/cGrWzCH/1oQ+X6EFV0WW8lNx1+ApBDyBGJY= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [0.0.0.0] ([13.231.109.76]) by mail.gmx.com (mrgmx104 [212.227.17.174]) with ESMTPSA (Nemesis) id 1M59C8-1iTPVx3HzI-001Efu; Wed, 06 Nov 2019 12:34:55 +0100 Subject: Re: fix for ERROR: cannot read chunk root To: Sergiu Cozma , linux-btrfs@vger.kernel.org References: 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: <187ab271-f2be-9e96-e73a-0f6f3e97655a@gmx.com> Date: Wed, 6 Nov 2019 19:34:47 +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="xuz0TwVCN9bagc8CYC23HRXC8Ws71jM3f" X-Provags-ID: V03:K1:BtvToFk7UoY1vNyWnymvp3AsyJ0p9L09qMVzsHqcK8zQJqmlrx1 G31Y28e7BJqGgPltx+HweCjn0BFjMRfkHjLi78K71UVkTgk4wotu1qBlT1Yjur9YtYDtWaD SgZpmppGNn03cBEOcSwTw8Omu886M9+B+LJIytzTbZmyHiaOl7PHxfjirmYBCb6RIp//PvT 0ck94E5hzyy3nKAO3Nzuw== X-UI-Out-Filterresults: notjunk:1;V03:K0:4fic9liIFew=:PblMhx4xN8YHK/U9JQ7Xwz /XiXxEOmI4PDQH+LvTdvYC8BUSiZyTzmXsE35MC2l339SDk4fmq4BGXu1ZCAzaSI1rkqARM4o i0onryLDiRH5SixNE+qk1ALFowHIwa/zbjnq4QVZMWuxjFAjYhn0A01yy4Suh/Y+RJu+kw9LB Wz1j8JudfTfsGIPh2ccKprgBq2RUM+KuvpcO/0uqTBA/J4Oyx6CILlUIYfVk5PFaYSjBp/0dh TReAsL4UMRzNbdY7ZWIjN2v2YjoniXbWOGkdjyO9+oXzbVdpIdxtO1nhMIo6mG7ivj0XAn0Wd v9AS0qUzHInwA1tEcQBqhWCpYaf91+DuVT+1LKI+8E9Ay+wGB+0BtRbZHWdt5CTTFibnMIynw hIk4TYW5lAV9OlvQIw0gM+ObL9I/B/lTKssNyVzc5Qv/fggohazbe8Ofr/oLwYK0IOXz771Yh CDt01glY9R+X387t/vuNH7zJN7LY0bgurr0dgopXQj/fheHN1HvQ30oRDdDHrE6QEPBO1cCis VmGSCjSQybFK0yo0b0qbUr8z6zuJACxjxAF03PjPkB91C0cRScVx6KAN79RyA8Ne2RL9plNJj B41yLWN9D7HHzHY/VoenZfmafYJ/ZkEBUmsqb9wWUh5HT2NZUh1BLddlGrhsSFZ+rkstd/QNj e2f7m4IRdCMOGstx8g6fOXm2b/mVJMJ4aD7UDhas52GA89f2ABrU21uCI0oceN3+N7V82ObBM /iLhj+PragQytIVqnbDntiDzfgV+F8LMZCwkePASdX2Xa1rV+o44gHIl7xYCr7mWFWyOAFYpt cQXjxF6F7yV6JjHrk6OYm5PYWbivf3kmDZ4wHAL0fnoZ/DVFVCHvjwoSAFTXAxkIxl0zrqeKy N4ZM51DJ/HpIvJgG4aQY+6meZMUI2qXIaTq9DdkrZH5c0gOyUO+Z6Kam4TPecPtCyHnSKS6qZ l15Qx860gHvVSrOzrlAezYqQhA5SJVz3r+9FsEQAEg3QlbX07yxC7JwM8iNisTysnq74gDn4q 6yYh974QywthcOK3pRDoN3O6S6F6IPSgjnWqBrUYe8ZgSaPOeeoqFSmZftFaWVAdeLiL4de7f TGvJT+5hg/muzMyvX+lPR79SqiIEE13Ty9DlUG4pel0DwirLi1x7l/SZqkOrHJWGC7Qn6gFT1 wJU+JFlGa4ypOdCtshBcYJQ8HWiiHzZwzm0v1IPC7VBUSxdPFfSEP2DOM9eLpGJ+VYifeLPJe bWcTEvFxia6tuu/IyJzbuvTRhwFUpX/iNlfE3+KsUDE8fxoqaKBxyqzuW4K8= 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) --xuz0TwVCN9bagc8CYC23HRXC8Ws71jM3f Content-Type: multipart/mixed; boundary="GwH9u187xPblKS0yaCHZHdKiRRiPruGve" --GwH9u187xPblKS0yaCHZHdKiRRiPruGve Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable 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 >=20 > 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 >=20 > can't mount the partition with > BTRFS error (device sdb4): bad tree block start, want 856119312384 have= 0 Something wiped your fs on-disk data. And the wiped one belongs to one of the most essential tree, chunk tree. 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 >=20 --GwH9u187xPblKS0yaCHZHdKiRRiPruGve-- --xuz0TwVCN9bagc8CYC23HRXC8Ws71jM3f Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEELd9y5aWlW6idqkLhwj2R86El/qgFAl3Cr9cACgkQwj2R86El /qjHMwf9HXxcTpBv9WAXoHUxWSLNZw6kdYT+1r/O/pTEHBXPCeqxvlezJXorc9BN BW5zCe6n5QGPGa0XNlBJ0ZSlQOpeiWrqvPuEbQz1yTRZNHrvGOG/T7oPKOVAIgNi Otxe45Sc6dQt2hIUeuuI0vRw88SK2h0lCueZCiWhqP1nIM8hR8Ge0EDHhplvC+ie DK0AXjPXB7xuiUezcZK9Jn2q4TTmS/mjXDI/i8oli7mZW8c8ofiaZa7m+kenCiLa cBDO2GJrs9eq0gQ5+SL1BkVkBmqnuEcU5tsGqP/JQXlZ2zJvaVKytYdZL617d4h6 FwMUfjwZeRHJ4uwy2zwL6iLR7AYbiQ== =ms+l -----END PGP SIGNATURE----- --xuz0TwVCN9bagc8CYC23HRXC8Ws71jM3f--