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bcachefs seems unclean

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Jun 25th, 2025
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  1. I build 6.15.3 in between and fsck.bcachefs -fvy /dev.... it marked it in the end as *clean*:
  2.  
  3. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): Using encoding defined by superblock: utf8-12.1.0
  4. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): starting version 1.13: inode_has_child_snapshots opts=compression=lz4,foreground_target=ssdw,background_target=hdd,promote_target=ssdr,degraded,verbose,fsck,fix_errors=yes,noratelimit_errors,read_only
  5. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): recovering from unclean shutdown
  6. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): Doing compatible version upgrade from 1.13: inode_has_child_snapshots to 1.25: extent_flags
  7. running recovery passes: check_allocations,check_extents_to_backpointers
  8. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): starting journal read
  9. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): journal read done on device dm-1, ret 0
  10. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): journal read done on device dm-2, ret 0
  11. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): journal read done on device dm-8, ret 0
  12. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): journal read done, replaying entries 16067180-16067180
  13. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): Journal keys: 0 read, 0 after sorting and compacting
  14. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): accounting_read... done
  15. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): alloc_read... done
  16. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): snapshots_read... done
  17. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_allocations...bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_allocations: 0%, done 3634/0 nodes, at extents:3455898:640:U32_MAX
  18. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_allocations: 0%, done 6750/0 nodes, at extents:4570393:13:U32_MAX
  19. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_allocations: 0%, done 9328/0 nodes, at extents:8997348:1:U32_MAX
  20. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_allocations: 0%, done 11946/0 nodes, at extents:11911146:256:4294967211
  21. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_allocations: 0%, done 23598/0 nodes, at inodes:0:7397878:U32_MAX
  22. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_allocations: 0%, done 34040/0 nodes, at backpointers:0:17990479872:0
  23. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_allocations: 0%, done 41915/0 nodes, at backpointers:0:2132534610944:0
  24. done
  25. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): going read-write
  26. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): journal_replay... done
  27. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_alloc_info... done
  28. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_lrus... done
  29. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_btree_backpointers... done
  30. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_extents_to_backpointers...bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): scanning for missing backpointers in 138936/1355776 buckets
  31. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): extents_to_backpointers: 13%, done 1762/12949 nodes, at extents:3311326:5515648:U32_MAX
  32. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): extents_to_backpointers: 13%, done 1800/12949 nodes, at extents:3313058:181504:U32_MAX
  33. [...]
  34. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): extents_to_backpointers: 93%, done 12091/12949 nodes, at extents:12920046:11264:4294967077
  35. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): extents_to_backpointers: 98%, done 12739/12949 nodes, at reflink:0:178914651:0
  36. done
  37. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_alloc_to_lru_refs... done
  38. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_snapshot_trees... done
  39. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_snapshots... done
  40. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_subvols... done
  41. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_subvol_children... done
  42. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): delete_dead_snapshots... done
  43. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_inodes... done
  44. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_extents... done
  45. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_indirect_extents... done
  46. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_dirents...bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): dirent points to inode overwritten in snapshot 4294967077:
  47. u64s 8 type dirent 4097:2345170690320842032:4294967083 len 0 ver 0: 12551901 -> 12551901 type dir, fixing
  48. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): dirent points to inode overwritten in snapshot 4294967077:
  49. u64s 8 type dirent 4097:3954995793246278881:4294967083 len 0 ver 0: 12542822 -> 12542822 type dir, fixing
  50. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): dirent points to inode overwritten in snapshot 4294967077:
  51. u64s 8 type dirent 4097:7450054179822935881:4294967083 len 0 ver 0: 12565929 -> 12565929 type dir, fixing
  52. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): dirent points to inode overwritten in snapshot 4294967077:
  53. u64s 8 type dirent 4097:8962719653745863451:4294967083 len 0 ver 0: 12551902 -> 12551902 type dir, fixing
  54. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): dirent points to inode overwritten in snapshot 4294967077:
  55. u64s 8 type dirent 4097:9042207818721005651:4294967083 len 0 ver 0: 12542821 -> 12542821 type dir, fixing
  56. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): dirent points to inode overwritten in snapshot 4294967077:
  57. u64s 8 type dirent 4097:9071774640828236621:4294967083 len 0 ver 0: 12565928 -> 12565928 type dir, fixing
  58. done
  59. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_xattrs... done
  60. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_root... done
  61. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_unreachable_inodes... done
  62. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_subvolume_structure... done
  63. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_directory_structure... done
  64. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): check_nlinks... done
  65. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): resume_logged_ops... done
  66. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): delete_dead_inodes... done
  67. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): nr blacklist entries was 2, now 1
  68. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): going read-only
  69. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): finished waiting for writes to stop
  70. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): flushing journal and stopping allocators, journal seq 16068418
  71. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): flushing journal and stopping allocators complete, journal seq 16068418
  72. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): clean shutdown complete, journal seq 16068419
  73. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): marking filesystem clean
  74. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): done starting filesystem
  75. a3c6756e-44df-4ff8-84cf-52919929ffd1: errors fixed
  76. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): shutting down
  77. bcachefs (a3c6756e-44df-4ff8-84cf-52919929ffd1): shutdown complete
  78. fsck binary is version 1.28: inode_has_case_insensitive but filesystem is 1.13: inode_has_child_snapshots and kernel is 1.25: extent_flags, using kernel fsck
  79. Running in-kernel offline fsck
  80.  
  81.  
  82. As I can not use 6.15 having probs with overlay and docker, I switched back to 6.12.30.
  83. Mounting took a while, marked as *clean* in the end but floods the log immediately with
  84.  
  85. Jun 26 00:59:41 omv kernel: invalid bkey u64s 9 type backpointer 1:10299971584:0 len 0 ver 0: bucket=1:2455:0 btree=extents l=0 offset=0:6 len=11 pos=293439:27:U32_MAX
  86. Jun 26 00:59:41 omv kernel: backpointer bucket_offset wrong: delete?, fixing
  87. Jun 26 00:59:41 omv kernel: invalid bkey u64s 9 type backpointer 1:10299982848:0 len 0 ver 0: bucket=1:2455:0 btree=extents l=0 offset=0:6 len=5 pos=293441:10:U32_MAX
  88. Jun 26 00:59:41 omv kernel: backpointer bucket_offset wrong: delete?, fixing
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