Mount command : mount -t bcachefs -o background_compression=gzip /dev/nvme0n1p4:/dev/sda1 /VM
####
Sep 30 13:57:42 youpi kernel: bcachefs (889f1a1a-d5ff-48d4-ab9e-915e2fc16798): starting version 1.12: rebalance_work_acct_fix opts=background_compression=gzip,foreground_target=/dev/nvme0n1p4,background_target=/dev/sda1,promote_target=/dev/nvme0n1p4,nopromote_whole_extents,nojournal_transaction_names
Sep 30 13:57:42 youpi kernel: bcachefs (889f1a1a-d5ff-48d4-ab9e-915e2fc16798): recovering from clean shutdown, journal seq 3246691
Sep 30 13:57:42 youpi kernel: bcachefs (889f1a1a-d5ff-48d4-ab9e-915e2fc16798): accounting_read...
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 6 type accounting 0:0:774 len 0 ver 0: btree btree=xattrs 512
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 6 type accounting 0:0:2054 len 0 ver 0: btree btree=subvolumes 512
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 6 type accounting 0:0:2310 len 0 ver 0: btree btree=snapshots 512
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 6 type accounting 0:0:3590 len 0 ver 0: btree btree=bucket_gens 5120
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 6 type accounting 0:0:3846 len 0 ver 0: btree btree=snapshot_trees 512
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 6 type accounting 0:0:4102 len 0 ver 0: btree btree=deleted_inodes 512
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 6 type accounting 0:0:4870 len 0 ver 0: btree btree=subvolume_children 512
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 8 type accounting 0:0:65539 len 0 ver 0: dev_data_type dev=0 data_type=sb 13 6152 504
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 8 type accounting 0:0:65795 len 0 ver 0: dev_data_type dev=1 data_type=sb 13 6152 504
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 8 type accounting 0:0:131075 len 0 ver 0: dev_data_type dev=0 data_type=journal 2846 1457152 0
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 8 type accounting 0:0:131331 len 0 ver 0: dev_data_type dev=1 data_type=journal 8192 4194304 0
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 6 type accounting 0:3:6 len 0 ver 0: btree btree=(unknown) 0
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 6 type accounting 0:8:6 len 0 ver 0: btree btree=(unknown) 0
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 6 type accounting 0:9:6 len 0 ver 0: btree btree=(unknown) 0
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 6 type accounting 0:12:6 len 0 ver 0: btree btree=(unknown) 0
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 6 type accounting 0:15:6 len 0 ver 0: btree btree=(unknown) 0
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:42 youpi kernel: invalid bkey u64s 6 type accounting 0:16:6 len 0 ver 0: btree btree=(unknown) 0
Sep 30 13:57:42 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:17:6 len 0 ver 0: btree btree=(unknown) 0
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:19:6 len 0 ver 0: btree btree=(unknown) 0
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294950149 len 0 ver 0: snapshot id=4294967229 2795527
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294950661 len 0 ver 0: snapshot id=4294967231 3008055
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294951173 len 0 ver 0: snapshot id=4294967233 2022206
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294952197 len 0 ver 0: snapshot id=4294967237 1834992
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294952709 len 0 ver 0: snapshot id=4294967239 1666344
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294953221 len 0 ver 0: snapshot id=4294967241 1815036
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294953733 len 0 ver 0: snapshot id=4294967243 1795952
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294954245 len 0 ver 0: snapshot id=4294967245 1797177
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294954757 len 0 ver 0: snapshot id=4294967247 1801889
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294955269 len 0 ver 0: snapshot id=4294967249 1797141
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294955781 len 0 ver 0: snapshot id=4294967251 1798844
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294956293 len 0 ver 0: snapshot id=4294967253 8758698
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294956805 len 0 ver 0: snapshot id=4294967255 1800793
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294957317 len 0 ver 0: snapshot id=4294967257 2156325
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294957829 len 0 ver 0: snapshot id=4294967259 1884225
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel: invalid bkey u64s 6 type accounting 0:255:4294958341 len 0 ver 0: snapshot id=4294967261 10372456
Sep 30 13:57:43 youpi kernel:   accounting key with version=0: delete?, fixing
Sep 30 13:57:43 youpi kernel:  done
Sep 30 13:57:43 youpi kernel: bcachefs (889f1a1a-d5ff-48d4-ab9e-915e2fc16798): alloc_read... done
Sep 30 13:57:43 youpi kernel: bcachefs (889f1a1a-d5ff-48d4-ab9e-915e2fc16798): stripes_read... done
Sep 30 13:57:43 youpi kernel: bcachefs (889f1a1a-d5ff-48d4-ab9e-915e2fc16798): snapshots_read... done
Sep 30 13:57:43 youpi kernel: bcachefs (889f1a1a-d5ff-48d4-ab9e-915e2fc16798): journal_replay... done
Sep 30 13:57:43 youpi kernel: bcachefs (889f1a1a-d5ff-48d4-ab9e-915e2fc16798): resume_logged_ops... done
Sep 30 13:57:43 youpi kernel: bcachefs (889f1a1a-d5ff-48d4-ab9e-915e2fc16798): delete_dead_inodes... done
Sep 30 13:57:43 youpi kernel: bcachefs (889f1a1a-d5ff-48d4-ab9e-915e2fc16798): going read-write