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with SMTP id c199mr15747349qke.472.1587882199382; Sat, 25 Apr 2020 23:23:19 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Yegor Yegorov Date: Sun, 26 Apr 2020 09:23:08 +0300 Message-ID: Subject: Re: Help needed to recover from partition resize/move To: Chris Murphy Cc: Btrfs BTRFS , arvidjaar@gmail.com Content-Type: text/plain; charset="UTF-8" Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org > What do you get for > > btrfs insp dump-s -f /dev/nvme0n1p3 > btfs insp dump-t -d /dev/nvme0n1p3 $> btrfs insp dump-s -f /dev/nvme0n1p3 superblock: bytenr=65536, device=/dev/nvme0n1p3 --------------------------------------------------------- csum_type 0 (crc32c) csum_size 4 csum 0x043ea018 [match] bytenr 65536 flags 0x1 ( WRITTEN ) magic _BHRfS_M [match] fsid 90e9d74c-3606-4028-9e72-c10e76f44a7c metadata_uuid 90e9d74c-3606-4028-9e72-c10e76f44a7c label data generation 49 root 8612052992 sys_array_size 97 chunk_root_generation 46 root_level 1 chunk_root 1048576 chunk_root_level 1 log_root 0 log_root_transid 0 log_root_level 0 total_bytes 188743680000 bytes_used 182011633664 sectorsize 4096 nodesize 16384 leafsize (deprecated) 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 48 uuid_tree_generation 48 dev_item.uuid e2815a2c-6ec8-45c6-baae-7f429a5f0f78 dev_item.fsid 90e9d74c-3606-4028-9e72-c10e76f44a7c [match] dev_item.type 0 dev_item.total_bytes 188743680000 dev_item.bytes_used 184704565248 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 dev_item.generation 0 sys_chunk_array[2048]: item 0 key (FIRST_CHUNK_TREE CHUNK_ITEM 1048576) length 4194304 owner 2 stripe_len 65536 type SYSTEM io_align 4096 io_width 4096 sector_size 4096 num_stripes 1 sub_stripes 0 stripe 0 devid 1 offset 1048576 dev_uuid e2815a2c-6ec8-45c6-baae-7f429a5f0f78 backup_roots[4]: backup 0: backup_tree_root: 8612052992 gen: 49 level: 1 backup_chunk_root: 1048576 gen: 46 level: 1 backup_extent_root: 8612069376 gen: 49 level: 1 backup_fs_root: 8852570112 gen: 47 level: 2 backup_dev_root: 8843755520 gen: 46 level: 0 backup_csum_root: 8853471232 gen: 48 level: 2 backup_total_bytes: 188743680000 backup_bytes_used: 182011633664 backup_num_devices: 1 backup 1: backup_tree_root: 8852389888 gen: 46 level: 1 backup_chunk_root: 1048576 gen: 46 level: 1 backup_extent_root: 8843722752 gen: 46 level: 1 backup_fs_root: 8842969088 gen: 46 level: 2 backup_dev_root: 8843755520 gen: 46 level: 0 backup_csum_root: 8843018240 gen: 46 level: 2 backup_total_bytes: 188743680000 backup_bytes_used: 182011633664 backup_num_devices: 1 backup 2: backup_tree_root: 8853127168 gen: 47 level: 1 backup_chunk_root: 1048576 gen: 46 level: 1 backup_extent_root: 8852865024 gen: 47 level: 1 backup_fs_root: 8852570112 gen: 47 level: 2 backup_dev_root: 8843755520 gen: 46 level: 0 backup_csum_root: 8853192704 gen: 47 level: 2 backup_total_bytes: 188743680000 backup_bytes_used: 182011633664 backup_num_devices: 1 backup 3: backup_tree_root: 8853389312 gen: 48 level: 1 backup_chunk_root: 1048576 gen: 46 level: 1 backup_extent_root: 8853405696 gen: 48 level: 1 backup_fs_root: 8852570112 gen: 47 level: 2 backup_dev_root: 8843755520 gen: 46 level: 0 backup_csum_root: 8853471232 gen: 48 level: 2 backup_total_bytes: 188743680000 backup_bytes_used: 182011633664 backup_num_devices: 1 $> btrfs insp dump-t -d /dev/nvme0n1p3 btrfs-progs v5.6 checksum verify failed on 1048576 found 00000067 wanted 0000006E checksum verify failed on 1048576 found 00000067 wanted 0000006E bad tree block 1048576, bytenr mismatch, want=1048576, have=6267530653245814412 ERROR: cannot read chunk root ERROR: unable to open /dev/nvme0n1p3 As Andrei Borzenko has stated it is indeed the third superblock: $> btrfs insp dump-super -a /dev/nvme0n1p3 superblock: bytenr=65536, device=/dev/nvme0n1p3 --------------------------------------------------------- csum_type 0 (crc32c) csum_size 4 csum 0x043ea018 [match] bytenr 65536 flags 0x1 ( WRITTEN ) magic _BHRfS_M [match] fsid 90e9d74c-3606-4028-9e72-c10e76f44a7c metadata_uuid 90e9d74c-3606-4028-9e72-c10e76f44a7c label data generation 49 root 8612052992 sys_array_size 97 chunk_root_generation 46 root_level 1 chunk_root 1048576 chunk_root_level 1 log_root 0 log_root_transid 0 log_root_level 0 total_bytes 188743680000 bytes_used 182011633664 sectorsize 4096 nodesize 16384 leafsize (deprecated) 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 48 uuid_tree_generation 48 dev_item.uuid e2815a2c-6ec8-45c6-baae-7f429a5f0f78 dev_item.fsid 90e9d74c-3606-4028-9e72-c10e76f44a7c [match] dev_item.type 0 dev_item.total_bytes 188743680000 dev_item.bytes_used 184704565248 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 dev_item.generation 0 superblock: bytenr=67108864, device=/dev/nvme0n1p3 --------------------------------------------------------- csum_type 0 (crc32c) csum_size 4 csum 0xa45f88d6 [match] bytenr 67108864 flags 0x1 ( WRITTEN ) magic _BHRfS_M [match] fsid 90e9d74c-3606-4028-9e72-c10e76f44a7c metadata_uuid 90e9d74c-3606-4028-9e72-c10e76f44a7c label data generation 49 root 8612052992 sys_array_size 97 chunk_root_generation 46 root_level 1 chunk_root 1048576 chunk_root_level 1 log_root 0 log_root_transid 0 log_root_level 0 total_bytes 188743680000 bytes_used 182011633664 sectorsize 4096 nodesize 16384 leafsize (deprecated) 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 48 uuid_tree_generation 48 dev_item.uuid e2815a2c-6ec8-45c6-baae-7f429a5f0f78 dev_item.fsid 90e9d74c-3606-4028-9e72-c10e76f44a7c [match] dev_item.type 0 dev_item.total_bytes 188743680000 dev_item.bytes_used 184704565248 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 dev_item.generation 0 superblock: bytenr=274877906944, device=/dev/nvme0n1p3 --------------------------------------------------------- ERROR: bad magic on superblock on /dev/nvme0n1p3 at 274877906944