Re: bcachefs mount issue

[Viacheslav Dubeyko <slava@xxxxxxxxxxx>]

On 8/6/24 03:50, Kent Overstreet wrote:
> On Mon, Aug 05, 2024 at 09:35:09PM GMT, Viacheslav Dubeyko wrote:
> > Hi Kent,
> >
> > As far as I  can see, I have found a mount issue. I believe that it’s a mkfs tool issue.
> >
> > ENVIRONMENT:
> > Linux ssdfs-test-0070 6.10.0 #15 SMP PREEMPT_DYNAMIC Mon Aug  5 19:00:55 MSK 2024 x86_64 x86_64 x86_64 GNU/Linux
> >
> > I am not sure how to share the mkfs.bcachefs tool version because this tool doesn’t show the version.
>
> You're using an ancient version - I presume from Debian?
>
> Debian hasn't been getting tools updates, you can't get anything modern
> because of, I believe, a libsodium transition (?), and modern 1.9.x
> versions aren't getting pushed out either.
>
> I'll have to refer you to them - Jonathan, what's going on?

I am using Ubuntu:

lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 22.04.3 LTS
Release:	22.04
Codename:	jammy

Thanks,
Slava.

> > REPRODUCTION PATH:
> >
> > (1) Format partition by mkfs tool of any file system (for example, NILFS2)
> > (2) Mount the prepared volume
> > (3) Execute any file system operations on the volume
> > (4) Unmount the volume
> > (5) Format partition by mkfs.bcachefs tool
> > (6) Try to mount the prepared  bcachefs volume
> > (7) The bcachefs logic fails too mount the formatted volume
> >
> > sudo mkfs.nilfs2 -f -b 4096 /dev/sda1
> > mkfs.nilfs2 (nilfs-utils 2.2.8)
> > Start writing file system initial data to the device
> >         Blocksize:4096  Device:/dev/sda1  Device Size:999292928
> > File system initialization succeeded !!
> >
> > sudo mount /dev/sda1 /mnt/test/
> >
> > mount
> > <skipped>
> > /dev/sda1 on /mnt/test type nilfs2 (rw,relatime)
> >
> > Aug  5 19:14:40 ssdfs-test-0070 kernel: [  520.066975] NILFS (sda1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
> > Aug  5 19:14:40 ssdfs-test-0070 nilfs_cleanerd[3854]: start
> > Aug  5 19:14:40 ssdfs-test-0070 nilfs_cleanerd[3854]: pause (clean check)
> >
> > sudo umount /mnt/test
> >
> > Aug  5 19:15:18 ssdfs-test-0070 nilfs_cleanerd[3854]: shutdown
> >
> > sudo mkfs.bcachefs -f --block_size=4096 /dev/sda1
> > External UUID: 483fb669-63aa-4f41-b0ba-61eb2446c2fe
> > Internal UUID: 43527890-f6c8-43f1-bdd9-1c4936f71a8d
> > Device index: 0
> > Label:
> > Version: 14
> > Oldest version on disk: 14
> > Created: Mon Aug  5 19:20:32 2024
> > Squence number: 0
> > Block_size: 4.0K
> > Btree node size: 128.0K
> > Error action: ro
> > Clean: 0
> > Features: new_siphash,new_extent_overwrite,btree_ptr_v2,extents_above_btree_updates,btree_updates_journalled,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
> > Compat features:
> > Metadata replicas: 1
> > Data replicas: 1
> > Metadata checksum type: crc32c (1)
> > Data checksum type: crc32c (1)
> > Compression type: none (0)
> > Foreground write target: none
> > Background write target: none
> > Promote target: none
> > Metadata target:                none
> > String hash type: siphash (2)
> > 32 bit inodes: 1
> > GC reserve percentage: 8%
> > Root reserve percentage: 0%
> > Devices: 1 live, 1 total
> > Sections: members
> > Superblock size: 816
> >
> > Members (size 64):
> >    Device 0:
> >      UUID: 2c54ddfc-f50c-4d15-aa80-7d23474de3e6
> >      Size: 953.0M
> >      Bucket size: 128.0K
> >      First bucket: 0
> >      Buckets: 7624
> >      Last mount: (never)
> >      State: rw
> >      Group: (none)
> >      Data allowed: journal,btree,user
> >      Has data: (none)
> >      Replacement policy: lru
> >      Discard: 0
> > initializing new filesystem
> > going read-write
> > mounted with opts: (null)
> >
> > sudo mount /dev/sda1 /mnt/test/
> >
> > mount
> > <skipped>
> > /dev/sda1 on /mnt/test type nilfs2 (rw,relatime) <— completely unexpected
> >
> > Aug  5 19:21:13 ssdfs-test-0070 kernel: [  912.678991] NILFS (sda1): broken superblock, retrying with spare superblock (blocksize = 1024)
> > Aug  5 19:21:13 ssdfs-test-0070 kernel: [  912.679835] NILFS (sda1): broken superblock, retrying with spare superblock (blocksize = 4096)
> > Aug  5 19:21:13 ssdfs-test-0070 kernel: [  912.706795] NILFS (sda1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
> > Aug  5 19:21:13 ssdfs-test-0070 nilfs_cleanerd[4751]: start
> > Aug  5 19:21:13 ssdfs-test-0070 nilfs_cleanerd[4751]: pause (clean check)
> >
> > sudo umount /mnt/test
> >
> > sudo mount -t bcachefs /dev/sda1 /mnt/test/
> > mount: /mnt/test: wrong fs type, bad option, bad superblock on /dev/sda1, missing codepage or helper program, or other error.
> >
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.311715] bcachefs (sda1): mounting version 0.14: btree_ptr_sectors_written opts=noshard_inode_numbers,journal_reclaim_delay=1000,nojournal_transaction_names
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.311753] bcachefs (sda1): recovering from clean shutdown, journal seq 4
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.311782] bcachefs (sda1): Version upgrade required:
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.311782] Doing incompatible version upgrade from 0.14: btree_ptr_sectors_written to 1.7: mi_btree_bitmap
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.311782]   running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_subvolume_structure,check_directory_structure,check_nlinks,delete_dead_inodes,set_fs_needs_rebalance
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.431462] bcachefs (sda1): alloc_read... done
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.431675] bcachefs (sda1): stripes_read... done
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.431688] bcachefs (sda1): snapshots_read... done
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.431702] bcachefs (sda1): check_allocations...
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.469609] dev 0 has wrong free buckets: got 0, should be 7537, fixing
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.469683]  done
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.471013] bcachefs (sda1): going read-write
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.471766] bcachefs (sda1): journal_replay... done
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.471794] bcachefs (sda1): check_alloc_info... done
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.472921] bcachefs (sda1): check_lrus... done
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.473309] bcachefs (sda1): check_btree_backpointers... done
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.473960] bcachefs (sda1): check_backpointers_to_extents... done
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.474483] bcachefs (sda1): check_extents_to_backpointers...
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.474582] missing backpointer for btree=inodes l=1 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq d7dbe59ccc0e54fa written 24 min_key POS_MIN durability: 1 ptr: 0:78:0 gen 1
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.474590]   got:   u64s 5 type deleted 0:20447232:0 len 0 ver 0
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.474595]   want:  u64s 9 type backpointer 0:20447232:0 len 0 ver 0: bucket=0:78:0 btree=inodes l=1 offset=0:0 len=256 pos=SPOS_MAX, shutting down
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.474645] bcachefs (sda1): inconsistency detected - emergency read only at journal seq 4
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.474664] bcachefs (sda1): bch2_check_extents_to_backpointers(): error fsck_errors_not_fixed
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.474682] bcachefs (sda1): bch2_fs_recovery(): error fsck_errors_not_fixed
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.474692] bcachefs (sda1): bch2_fs_start(): error starting filesystem fsck_errors_not_fixed
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.474842] bcachefs (sda1): unshutdown complete, journal seq 4
> > Aug  5 19:23:01 ssdfs-test-0070 kernel: [ 1020.595522] bcachefs: bch2_mount() error: fsck_errors_not_fixed
> >
> > Thanks,
> > Slava.