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Sat, 19 Oct 2024 13:45:52 +0000 (UTC) Received: from bllue.org (localhost.localdomain [127.0.0.1]) by static.bllue.org (Postfix) with ESMTP id 16530400073 for ; Sat, 19 Oct 2024 09:45:50 -0400 (EDT) Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Sat, 19 Oct 2024 09:45:50 -0400 From: Kenneth Topp To: linux-btrfs@vger.kernel.org Subject: btrfs filesystem so full I cannot mount it. Message-ID: X-Sender: ken@bllue.org Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Hi, I have a filesystem that (I think) is so full I cannot mount it. when I do, it seems stuck in btrfs_start_pre_rw_mount->btrfs_orphan_cleanup forever. I have let it run for a few hours, and it seems to be incrementally reading/writing the filesystem, but I'm not sure if that's a good thing or a bad thing. Below is a kernel stack of mount when this is happening. I'm running btrfs check right now, and it's still on step 4/7 but I'm committed to letting it finish this time, so I can be sure that there's no underlying issues. I've tried to mount clear_cache which seemed to run, but it didn't hange that i'm stuck in orphan_cleanup. There are no btrfs error messages in journald. I'd like to get back to normal, my backups a bit old, so even a read-only mount would be nice (I haven't yet tried) but I'm hopefully for a resolution where I can just mount the thing, and free up a bunch of space. My next great idea is just adding another disk to the filesystem, but i thought it's time to ask for guidance from the list. this filesystem is -d single -m raid1 and uses space group v2, which was great because it use to take 5 minutes to mount the filesystem. any guidance would be most appreciated, I've tried to include a cursory detail of what's happening below. please let me know if there's anything more I can provide or steps I should take. Oct 19 01:07:43 myhost kernel: task:mount state:D stack:0 pid:13675 tgid:13675 ppid:12146 flags:0x00004002 Oct 19 01:07:43 myhost kernel: Call Trace: Oct 19 01:07:43 myhost kernel: Oct 19 01:07:43 myhost kernel: __schedule+0x400/0x1720 Oct 19 01:07:43 myhost kernel: schedule+0x27/0xf0 Oct 19 01:07:43 myhost kernel: io_schedule+0x46/0x70 Oct 19 01:07:43 myhost kernel: bit_wait_io+0x11/0x70 Oct 19 01:07:43 myhost kernel: __wait_on_bit+0x45/0x160 Oct 19 01:07:43 myhost kernel: ? __pfx_bit_wait_io+0x10/0x10 Oct 19 01:07:43 myhost kernel: out_of_line_wait_on_bit+0x94/0xc0 Oct 19 01:07:43 myhost kernel: ? __pfx_wake_bit_function+0x10/0x10 Oct 19 01:07:43 myhost kernel: read_extent_buffer_pages+0x1de/0x220 Oct 19 01:07:43 myhost kernel: btrfs_read_extent_buffer+0x94/0x1c0 Oct 19 01:07:43 myhost kernel: read_tree_block+0x32/0x90 Oct 19 01:07:43 myhost kernel: read_block_for_search+0x247/0x360 Oct 19 01:07:43 myhost kernel: btrfs_search_slot+0x375/0x1060 Oct 19 01:07:43 myhost kernel: ? btrfs_extent_root+0x85/0xb0 Oct 19 01:07:43 myhost kernel: lookup_inline_extent_backref+0x174/0x810 Oct 19 01:07:43 myhost kernel: ? __slab_free+0xdf/0x2e0 Oct 19 01:07:43 myhost kernel: lookup_extent_backref+0x41/0xd0 Oct 19 01:07:43 myhost kernel: __btrfs_free_extent.isra.0+0x110/0xa10 Oct 19 01:07:43 myhost kernel: __btrfs_run_delayed_refs+0x592/0xfc0 Oct 19 01:07:43 myhost kernel: ? release_extent_buffer+0xb1/0xd0 Oct 19 01:07:43 myhost kernel: ? __write_extent_buffer+0x14b/0x1a0 Oct 19 01:07:43 myhost kernel: ? btrfs_release_path+0x2b/0x190 Oct 19 01:07:43 myhost kernel: ? update_block_group_item+0x16d/0x1b0 Oct 19 01:07:43 myhost kernel: btrfs_run_delayed_refs+0x3b/0xd0 Oct 19 01:07:43 myhost kernel: btrfs_start_dirty_block_groups+0x303/0x530 Oct 19 01:07:43 myhost kernel: btrfs_commit_transaction+0xb5/0xc90 Oct 19 01:07:43 myhost kernel: ? start_transaction+0x22c/0x830 Oct 19 01:07:43 myhost kernel: flush_space+0xfa/0x5b0 Oct 19 01:07:43 myhost kernel: ? btrfs_reduce_alloc_profile+0x9e/0x1d0 Oct 19 01:07:43 myhost kernel: priority_reclaim_metadata_space+0x94/0x150 Oct 19 01:07:43 myhost kernel: __reserve_bytes+0x2a7/0x6e0 Oct 19 01:07:43 myhost kernel: ? __slab_free+0xdf/0x2e0 Oct 19 01:07:43 myhost kernel: btrfs_reserve_metadata_bytes+0x1d/0xc0 Oct 19 01:07:43 myhost kernel: btrfs_block_rsv_refill+0x6b/0xa0 Oct 19 01:07:43 myhost kernel: evict_refill_and_join+0x4b/0xc0 Oct 19 01:07:43 myhost kernel: btrfs_evict_inode+0x30a/0x3c0 Oct 19 01:07:43 myhost kernel: evict+0x10e/0x2c0 Oct 19 01:07:43 myhost kernel: ? unlock_new_inode+0x4c/0x60 Oct 19 01:07:43 myhost kernel: ? _atomic_dec_and_lock+0x39/0x50 Oct 19 01:07:43 myhost kernel: btrfs_orphan_cleanup+0x209/0x2e0 Oct 19 01:07:43 myhost kernel: btrfs_start_pre_rw_mount+0x1ab/0x480 Oct 19 01:07:43 myhost kernel: open_ctree+0x1063/0x1426 Oct 19 01:07:43 myhost kernel: btrfs_get_tree.cold+0x6b/0x10e Oct 19 01:07:43 myhost kernel: ? vfs_dup_fs_context+0x2d/0x1e0 Oct 19 01:07:43 myhost kernel: vfs_get_tree+0x29/0xd0 Oct 19 01:07:43 myhost kernel: fc_mount+0x12/0x40 Oct 19 01:07:43 myhost kernel: btrfs_get_tree+0x30e/0x700 Oct 19 01:07:43 myhost kernel: vfs_get_tree+0x29/0xd0 Oct 19 01:07:43 myhost kernel: vfs_cmd_create+0x65/0xf0 Oct 19 01:07:43 myhost kernel: __do_sys_fsconfig+0x43c/0x670 Oct 19 01:07:43 myhost kernel: do_syscall_64+0x82/0x160 Oct 19 01:07:43 myhost kernel: ? do_faccessat+0x1e4/0x2e0 Oct 19 01:07:43 myhost kernel: ? syscall_exit_to_user_mode+0x72/0x220 Oct 19 01:07:43 myhost kernel: ? do_syscall_64+0x8e/0x160 Oct 19 01:07:43 myhost kernel: ? do_syscall_64+0x8e/0x160 Oct 19 01:07:43 myhost kernel: ? syscall_exit_to_user_mode+0x72/0x220 Oct 19 01:07:43 myhost kernel: ? do_syscall_64+0x8e/0x160 Oct 19 01:07:43 myhost kernel: ? syscall_exit_to_user_mode+0x72/0x220 Oct 19 01:07:43 myhost kernel: ? do_syscall_64+0x8e/0x160 Oct 19 01:07:43 myhost kernel: ? syscall_exit_to_user_mode+0x72/0x220 Oct 19 01:07:43 myhost kernel: ? do_syscall_64+0x8e/0x160 Oct 19 01:07:43 myhost kernel: ? syscall_exit_to_user_mode+0x72/0x220 Oct 19 01:07:43 myhost kernel: ? do_syscall_64+0x8e/0x160 Oct 19 01:07:43 myhost kernel: ? exc_page_fault+0x7e/0x180 Oct 19 01:07:43 myhost kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e Oct 19 01:07:43 myhost kernel: RIP: 0033:0x7fee827a383e Oct 19 01:07:43 myhost kernel: RSP: 002b:00007ffde9f8d058 EFLAGS: 00000246 ORIG_RAX: 00000000000001af Oct 19 01:07:43 myhost kernel: RAX: ffffffffffffffda RBX: 000055927b56fa90 RCX: 00007fee827a383e Oct 19 01:07:43 myhost kernel: RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000003 Oct 19 01:07:43 myhost kernel: RBP: 00007ffde9f8d1a0 R08: 0000000000000000 R09: 00007fee82896b20 Oct 19 01:07:43 myhost kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 00007fee8291cb00 Oct 19 01:07:43 myhost kernel: R13: 0000000000000000 R14: 000055927b570bd0 R15: 00007fee82911561 Oct 19 01:07:43 myhost kernel: # btrfs check -p /dev/mapper/cprt-50 Opening filesystem to check... Checking filesystem on /dev/mapper/cprt-50 UUID: b8b8786b-77ad-41aa-bd17-4607d4a7c428 [1/8] checking log skipped (none written) [1/7] checking root items (0:35:12 elapsed, 60022243 items checked) [2/7] checking extents (0:40:49 elapsed, 6069209 items checked) [3/7] checking free space tree (0:36:47 elapsed, 63245 items checked) [4/7] checking fs roots (6:20:51 elapsed, 453264 items checked) # btrfs filesystem show /dev/mapper/cprt-50 Label: 'dtm' uuid: b8b8786b-77ad-41aa-bd17-4607d4a7c428 Total devices 4 FS bytes used 61.75TiB devid 1 size 16.37TiB used 16.37TiB path /dev/mapper/cprt-62 devid 2 size 16.37TiB used 16.37TiB path /dev/mapper/cprt-63 devid 3 size 14.55TiB used 14.55TiB path /dev/mapper/cprt-50 devid 4 size 14.55TiB used 14.55TiB path /dev/mapper/cprt-53 # messages, this filesystem is label dtm/ b8b8786b-77ad-41aa-bd17-4607d4a7c428 Oct 18 18:06:48 static.bllue.org kernel: Btrfs loaded, zoned=yes, fsverity=yes Oct 18 18:06:57 static.bllue.org kernel: BTRFS: device label dtm devid 4 transid 790228 /dev/dm-0 (253:0) scanned by (udev-worker) (722) Oct 18 18:06:58 static.bllue.org kernel: BTRFS: device label ex:home2 devid 1 transid 290610 /dev/dm-2 (253:2) scanned by (udev-worker) (722) Oct 18 18:07:02 static.bllue.org kernel: BTRFS: device label dtm devid 1 transid 790228 /dev/dm-5 (253:5) scanned by (udev-worker) (719) Oct 18 18:07:03 static.bllue.org kernel: BTRFS: device label ex:home2 devid 2 transid 290610 /dev/dm-6 (253:6) scanned by (udev-worker) (722) Oct 18 18:07:11 static.bllue.org kernel: BTRFS: device label ex:home2b devid 2 transid 847454 /dev/dm-12 (253:12) scanned by (udev-worker) (722) Oct 18 18:07:15 static.bllue.org kernel: BTRFS: device label dtm devid 3 transid 790228 /dev/dm-17 (253:17) scanned by (udev-worker) (722) Oct 18 18:07:19 static.bllue.org kernel: BTRFS: device label dtm devid 2 transid 790228 /dev/dm-22 (253:22) scanned by (udev-worker) (719) Oct 18 18:07:20 static.bllue.org kernel: BTRFS: device label ex:home2b devid 1 transid 847454 /dev/dm-23 (253:23) scanned by (udev-worker) (719) Oct 18 18:07:21 static.bllue.org kernel: BTRFS info (device dm-23): first mount of filesystem 60eb6265-d748-406b-9301-2c4e5b3e71c0 Oct 18 18:07:21 static.bllue.org kernel: BTRFS info (device dm-23): using crc32c (crc32c-intel) checksum algorithm Oct 18 18:07:21 static.bllue.org kernel: BTRFS info (device dm-23): using free-space-tree Oct 18 23:47:18 static.bllue.org kernel: BTRFS info (device dm-5): first mount of filesystem b8b8786b-77ad-41aa-bd17-4607d4a7c428 Oct 18 23:47:18 static.bllue.org kernel: BTRFS info (device dm-5): using crc32c (crc32c-intel) checksum algorithm Oct 18 23:47:18 static.bllue.org kernel: BTRFS info (device dm-5): using free-space-tree # for i in cprt-62 cprt-63 cprt-50 cprt-53; do echo == $i ==; btrfs inspect-internal dump-super /dev/mapper/$i;done == cprt-62 == superblock: bytenr=65536, device=/dev/mapper/cprt-62 --------------------------------------------------------- csum_type 0 (crc32c) csum_size 4 csum 0xb3f048e8 [match] bytenr 65536 flags 0x1 ( WRITTEN ) magic _BHRfS_M [match] fsid b8b8786b-77ad-41aa-bd17-4607d4a7c428 metadata_uuid 00000000-0000-0000-0000-000000000000 label dtm generation 790364 root 26705528995840 sys_array_size 129 chunk_root_generation 788411 root_level 0 chunk_root 27131904 chunk_root_level 1 log_root 0 log_root_transid (deprecated) 0 log_root_level 0 total_bytes 68002141700096 bytes_used 67893970526208 sectorsize 4096 nodesize 16384 leafsize (deprecated) 16384 stripesize 4096 root_dir 6 num_devices 4 compat_flags 0x0 compat_ro_flags 0xb ( FREE_SPACE_TREE | FREE_SPACE_TREE_VALID | BLOCK_GROUP_TREE ) incompat_flags 0x361 ( MIXED_BACKREF | BIG_METADATA | EXTENDED_IREF | SKINNY_METADATA | NO_HOLES ) cache_generation 0 uuid_tree_generation 790364 dev_item.uuid c066323f-76b6-47d8-8c6c-bcd5fa0ec116 dev_item.fsid b8b8786b-77ad-41aa-bd17-4607d4a7c428 [match] dev_item.type 0 dev_item.total_bytes 18000189063168 dev_item.bytes_used 18000188014592 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 == cprt-63 == superblock: bytenr=65536, device=/dev/mapper/cprt-63 --------------------------------------------------------- csum_type 0 (crc32c) csum_size 4 csum 0x385ea4fd [match] bytenr 65536 flags 0x1 ( WRITTEN ) magic _BHRfS_M [match] fsid b8b8786b-77ad-41aa-bd17-4607d4a7c428 metadata_uuid 00000000-0000-0000-0000-000000000000 label dtm generation 790364 root 26705528995840 sys_array_size 129 chunk_root_generation 788411 root_level 0 chunk_root 27131904 chunk_root_level 1 log_root 0 log_root_transid (deprecated) 0 log_root_level 0 total_bytes 68002141700096 bytes_used 67893970526208 sectorsize 4096 nodesize 16384 leafsize (deprecated) 16384 stripesize 4096 root_dir 6 num_devices 4 compat_flags 0x0 compat_ro_flags 0xb ( FREE_SPACE_TREE | FREE_SPACE_TREE_VALID | BLOCK_GROUP_TREE ) incompat_flags 0x361 ( MIXED_BACKREF | BIG_METADATA | EXTENDED_IREF | SKINNY_METADATA | NO_HOLES ) cache_generation 0 uuid_tree_generation 790364 dev_item.uuid fe160407-2ae0-4d04-9df5-fc7ed52b827a dev_item.fsid b8b8786b-77ad-41aa-bd17-4607d4a7c428 [match] dev_item.type 0 dev_item.total_bytes 18000189063168 dev_item.bytes_used 18000188014592 dev_item.io_align 4096 dev_item.io_width 4096 dev_item.sector_size 4096 dev_item.devid 2 dev_item.dev_group 0 dev_item.seek_speed 0 dev_item.bandwidth 0 dev_item.generation 0 == cprt-50 == superblock: bytenr=65536, device=/dev/mapper/cprt-50 --------------------------------------------------------- csum_type 0 (crc32c) csum_size 4 csum 0xe7c8676d [match] bytenr 65536 flags 0x1 ( WRITTEN ) magic _BHRfS_M [match] fsid b8b8786b-77ad-41aa-bd17-4607d4a7c428 metadata_uuid 00000000-0000-0000-0000-000000000000 label dtm generation 790364 root 26705528995840 sys_array_size 129 chunk_root_generation 788411 root_level 0 chunk_root 27131904 chunk_root_level 1 log_root 0 log_root_transid (deprecated) 0 log_root_level 0 total_bytes 68002141700096 bytes_used 67893970526208 sectorsize 4096 nodesize 16384 leafsize (deprecated) 16384 stripesize 4096 root_dir 6 num_devices 4 compat_flags 0x0 compat_ro_flags 0xb ( FREE_SPACE_TREE | FREE_SPACE_TREE_VALID | BLOCK_GROUP_TREE ) incompat_flags 0x361 ( MIXED_BACKREF | BIG_METADATA | EXTENDED_IREF | SKINNY_METADATA | NO_HOLES ) cache_generation 0 uuid_tree_generation 790364 dev_item.uuid 072a8618-1b73-400a-8fee-1a3a07998748 dev_item.fsid b8b8786b-77ad-41aa-bd17-4607d4a7c428 [match] dev_item.type 0 dev_item.total_bytes 16000881786880 dev_item.bytes_used 16000880738304 dev_item.io_align 4096 dev_item.io_width 4096 dev_item.sector_size 4096 dev_item.devid 3 dev_item.dev_group 0 dev_item.seek_speed 0 dev_item.bandwidth 0 dev_item.generation 0 == cprt-53 == superblock: bytenr=65536, device=/dev/mapper/cprt-53 --------------------------------------------------------- csum_type 0 (crc32c) csum_size 4 csum 0x8f5d73e9 [match] bytenr 65536 flags 0x1 ( WRITTEN ) magic _BHRfS_M [match] fsid b8b8786b-77ad-41aa-bd17-4607d4a7c428 metadata_uuid 00000000-0000-0000-0000-000000000000 label dtm generation 790364 root 26705528995840 sys_array_size 129 chunk_root_generation 788411 root_level 0 chunk_root 27131904 chunk_root_level 1 log_root 0 log_root_transid (deprecated) 0 log_root_level 0 total_bytes 68002141700096 bytes_used 67893970526208 sectorsize 4096 nodesize 16384 leafsize (deprecated) 16384 stripesize 4096 root_dir 6 num_devices 4 compat_flags 0x0 compat_ro_flags 0xb ( FREE_SPACE_TREE | FREE_SPACE_TREE_VALID | BLOCK_GROUP_TREE ) incompat_flags 0x361 ( MIXED_BACKREF | BIG_METADATA | EXTENDED_IREF | SKINNY_METADATA | NO_HOLES ) cache_generation 0 uuid_tree_generation 790364 dev_item.uuid 7651b9c3-0b25-4aa5-b3c8-d28602e1779f dev_item.fsid b8b8786b-77ad-41aa-bd17-4607d4a7c428 [match] dev_item.type 0 dev_item.total_bytes 16000881786880 dev_item.bytes_used 16000880738304 dev_item.io_align 4096 dev_item.io_width 4096 dev_item.sector_size 4096 dev_item.devid 4 dev_item.dev_group 0 dev_item.seek_speed 0 dev_item.bandwidth 0 dev_item.generation 0 Ken