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=-5.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,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 49783C43461 for ; Mon, 14 Sep 2020 08:34:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ED9A222204 for ; Mon, 14 Sep 2020 08:34:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="D1RRNpRD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726266AbgINIeP (ORCPT ); Mon, 14 Sep 2020 04:34:15 -0400 Received: from mout.gmx.net ([212.227.15.18]:35169 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726139AbgINIeM (ORCPT ); Mon, 14 Sep 2020 04:34:12 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1600072447; bh=Jh8IvuMpuyoyTpRjPsQYe1IYbem5RP5I/ZuGleLUFtc=; h=X-UI-Sender-Class:Subject:To:References:From:Date:In-Reply-To; b=D1RRNpRDuRzwc3K/2jeZjYPM3Qyb1wiyg2/Y2P4KJxky9+RwWEjPrHAjQrJ9+bDSj L5XoahWj4eu5bQComAM0TpEc4RkRC9FTBr0AiWetyu5wqjlWmZLWvAZA3rUqf9byzn sQGlVIvJyO85cs+yOtndv14XFEng4opKKNjDvPEE= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [0.0.0.0] ([149.28.201.231]) by mail.gmx.com (mrgmx004 [212.227.17.184]) with ESMTPSA (Nemesis) id 1MYNJg-1k42Wa2JsY-00VQSJ; Mon, 14 Sep 2020 10:34:07 +0200 Subject: Re: Drive won't mount, please help To: J J , linux-btrfs@vger.kernel.org References: <91595165-FA0C-4BFB-BA8F-30BEAE6281A3@icloud.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: Date: Mon, 14 Sep 2020 16:34:04 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <91595165-FA0C-4BFB-BA8F-30BEAE6281A3@icloud.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="IYRyfZeHt6qtxfs6Nddav8M2pmOqvAY4Y" X-Provags-ID: V03:K1:+5dnwNCAL2U8pExS+qF6pevMgACJc2SVqlEJlWeH/QYDiOm+XbN rsEN9DnB+SRQJdbVYfG4XgbFykYrmKJluc31bYP8ktbkeXFBqyMV+tvRkC7e/D6JXtk95ds UeVObJcs4y5BGidLle9lgfU0WsREE+fLWBTnFijZ07mO7DPlxxF9xsk6d0lYpKR+vtYJS7v Ztz+xJoSfajhrVC+/WipA== X-UI-Out-Filterresults: notjunk:1;V03:K0:57+DaYqm+XU=:4HsYhKjATsmJCKwgqknXnX 7AMUfU0Of61v4fMRdsZ9Xb562jLFwRSpoSd6Iaizww9Vmx/nPFOfpf5TBS+Zf5RdVHdezJgAo ZwDQogNhIB1pTaah7m7tBQiCxSugk9pEhT7TuY4mzOFw5PR7s1hnLY5qLd+nXBleSSQ/vAGO4 1E+TC8Wp6LMATyWBZ6l60iF0nEr86R4+2pIwFkEyN+2LXbqKb96PLDgxBkCjtV/88hrY0mQBR YklmKF41lklbMZ/l9IWB5Ra9wQn4gx/iDGGqW+qlA/HiPf2TgmhTb/3Xg0lBzyD9nRWXaHfmX h4drsRX++aHx4ErR1enqY+OzgY043xdFUVR5uPrm4TNjDeLLI57zSYk4jkeBF1ruiJI5oR67x HGMRTijbkkoqtKS2cOouxGvxR7+HGlNZ00RxBtjnay2Up8CyEtbj9UtWaSbV9GqrCCC01kYJA 40fMc4Dwh4+l0RjiEQiXOn9wQYbeeKZOIY9q7/O67GFrB4KtuBGQDCvYg3RIFiiUl4hybT+e1 SQUlcGlhLJDa6xtVU3gBpxMyIlV9iLF6NZkAxrlbs/mjP5njuVrKwoGplsss9lsc60IxPTwVr TJEazT4wDbWPWOi2A/ibYVfjATNVaYNqTg1ENmEpGVL3qpKXbSQ4HLCcC4EZfP33IkeIANnSR JCDkR2Kn2JA+kFQxvb/sAtrgLsDx5mZlQxVEre3klbYHQvVKGUfWNiTyRjuUmM37wXqtVCRTd l41EL0pCiEOfSmnWifZOi/fvM4/tlIQuforsHqTdHgWLmW6rWtk4JehJ6Y09vm69Xin8kq+WB CHtOPqZ1iuJvWNuUs15rkQp9Fqx/CfXAEi1hYhv9z08LHX935PQ7xajtQeoZ5eEzFWh5EEFqz gNqggUKh2Lmtdm7+OlIkkqeMW1qcxEcGZh3M5ru6iqh44uRfTs9jHhzwEmEH6aTH0rGAVkkjN QhGg56A995tSw18UMWc/j5Jtha0vzpq6YHx9qOhldWSYYL5SY9SaStXGYQVd7D85cg+/vwshN AbBK9Gk/NjaBIytJd1v+Ze+FDp2+ohriWvdZpZbg+SdsHM0EL+F976lzsY2oxcnaIZ8hjax4r e2RzE9bsNilk5kyGdi8Y7m9C9CYxHX89DEYHGhiJnNFAuAHbPBBrqbaPCOMB8vXotZKFLl+6U lk/2xZSBTTfvoiDzLXPQGModlrMo8OoGcY1xagIFyVLvlgQ2kxitxWFhQrAPaK1Ya+4aVFpVF 6UiEjqF4lnDrjNj0nHlEXWQPEY+nRCX97j2lYHA== 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) --IYRyfZeHt6qtxfs6Nddav8M2pmOqvAY4Y Content-Type: multipart/mixed; boundary="NHeFO872a5QIePyYFARGp14ggkAvbmbwL" --NHeFO872a5QIePyYFARGp14ggkAvbmbwL Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2020/9/14 =E4=B8=8A=E5=8D=884:56, J J wrote: > I=E2=80=99m new to a lot of this, just trying to use a NAS at home, si= ngle usb external disk, not RAID. Was working great for a few months, I=E2= =80=99m not sure what changed today when it stopped mounting. Any advice = appreciated. Transid mismatch, and the expected transid is newer than the on-disk transid. This means, either btrfs has some bug that causes metadata writeback not following COW, or the disk controller/disk itself ignores Flush/FUA commands. Considering it's usb external disk, I doubt the later case. In that case, any fs would experience similar problem if a sudden power loss or cable loss happened. You may workaround such problem by disabling the writecache, but I doubt if the USB->Sata convert would follow the request. Thanks, Qu >=20 > Dmesg log attached >=20 >=20 > uname -a > Linux rock64 4.4.190-1233-rockchip-ayufan-gd3f1be0ed310 #1 SMP Wed Aug = 28 08:59:34 UTC 2019 aarch64 GNU/Linux >=20 >=20 >=20 > btrfs --version > btrfs-progs v4.7.3 >=20 >=20 >=20 > btrfs fi show > Label: '3TBRock64' uuid: 71eda2e3-384c-4868-b5d4-683f222865e6 > Total devices 1 FS bytes used 2.48TiB > devid 1 size 2.73TiB used 2.59TiB path /dev/mapper/sda-crypt >=20 >=20 > btrfs fi df /dev/mapper/sda-crypt > ERROR: not a btrfs filesystem: /dev/mapper/sda-crypt >=20 >=20 > btrfs inspect-internal dump-super /dev/mapper/sda-crypt=20 > superblock: bytenr=3D65536, device=3D/dev/mapper/sda-crypt > --------------------------------------------------------- > csum_type 0 (crc32c) > csum_size 4 > csum 0x9e8b0c33 [match] > bytenr 65536 > flags 0x1 > ( WRITTEN ) > magic _BHRfS_M [match] > fsid 71eda2e3-384c-4868-b5d4-683f222865e6 > label 3TBRock64 > generation 395886 > root 2638934654976 > sys_array_size 129 > chunk_root_generation 377485 > root_level 1 > chunk_root 20971520 > chunk_root_level 1 > log_root 2638952366080 > log_root_transid 0 > log_root_level 0 > total_bytes 3000556847104 > bytes_used 2729422221312 > sectorsize 4096 > nodesize 16384 > leafsize 16384 > stripesize 4096 > root_dir 6 > num_devices 1 > compat_flags 0x0 > compat_ro_flags 0x0 > incompat_flags 0x161 > ( MIXED_BACKREF | > BIG_METADATA | > EXTENDED_IREF | > SKINNY_METADATA ) > cache_generation 395886 > uuid_tree_generation 395886 > dev_item.uuid b7f4386a-18e0-437b-9588-6064ff483fd5 > dev_item.fsid 71eda2e3-384c-4868-b5d4-683f222865e6 [match] > dev_item.type 0 > dev_item.total_bytes 3000556847104 > dev_item.bytes_used 2843293515776 > dev_item.io_align 4096 > dev_item.io_width 4096 > dev_item.sector_size 4096 > dev_item.devid 1 > dev_item.dev_group 0 > dev_item.seek_speed 0 > dev_item.bandwidth 0 >=20 >=20 > dev_item.generation 0 >=20 --NHeFO872a5QIePyYFARGp14ggkAvbmbwL-- --IYRyfZeHt6qtxfs6Nddav8M2pmOqvAY4Y Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEELd9y5aWlW6idqkLhwj2R86El/qgFAl9fKvwACgkQwj2R86El /qiFmwf+NPsjh+twp1O8AKO71M+SPIbpXycPoJDNWKZg01btKTq1ZKECphMUemy+ HGpxl4m+1zJ52FOYTLX8iEC1de4AAWUVkIcUb+I4A0pUP+45EMCS2bqgqytHKECQ 4SJ/UjaoduHnkBugrwaiTJGbs3lh0xY5yvcnOo0GAf1wqutQSVR3VnTcrCTKPThP Qi1/TT8AMzFof7tVJTDFH7NpI7roFWqqBe8pN68RdO0KVKd5KUzvBLxyk/FXhrtJ bFMUlIpLmJVhXZzkW+UBUViMYCFpn86oM2ZEZxbIAiBs4wpp/sREvtyfYZdz6Rql 2rhxzff1F9qffXUQD5sp2cGXzQi42Q== =kKGw -----END PGP SIGNATURE----- --IYRyfZeHt6qtxfs6Nddav8M2pmOqvAY4Y--