allowing incompatible features above 0.0: (unknown version) features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0 bcachefs (loop0): invalid bkey in superblock btree=snapshots level=0: u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq d771a06d670df06c written 16 min_key POS_MIN durability: 1 ptr: 0:32:0 gen 0 invalid key type for btree snapshots (btree_ptr_v2), deleting bcachefs (loop0): invalid bkey in superblock btree=freespace level=0: u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq b6c44d07df4e9bb7 written 48 min_key POS_MIN durability: 1 ptr: 0:29:0 gen 0 invalid key type for btree freespace (btree_ptr_v2), deleting bcachefs (loop0): recovering from clean shutdown, journal seq 13 bcachefs (loop0): Version upgrade required: Version upgrade from 0.32: (unknown version) to 1.7: mi_btree_bitmap incomplete Doing incompatible version upgrade from 0.32: (unknown version) to 1.28: inode_has_case_insensitive running recovery passes: check_allocations,check_extents_to_backpointers,check_snapshots,check_subvols,check_inodes,check_dirents,set_fs_needs_rebalance bcachefs (loop0): accounting_read... done bcachefs (loop0): alloc_read... done bcachefs (loop0): snapshots_read... done bcachefs (loop0): check_allocations... bcachefs (loop0): bucket 0:9 gen 0 has wrong data_type: got journal, should be need_discard, fixing bcachefs (loop0): bucket 0:9 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing bcachefs (loop0): bucket 0:10 gen 0 has wrong data_type: got journal, should be need_discard, fixing bcachefs (loop0): bucket 0:10 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing bcachefs (loop0): bucket 0:11 gen 0 has wrong data_type: got journal, should be need_discard, fixing bcachefs (loop0): bucket 0:11 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing bcachefs (loop0): bucket 0:12 gen 0 has wrong data_type: got journal, should be need_discard, fixing bcachefs (loop0): bucket 0:12 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing bcachefs (loop0): bucket 0:13 gen 0 has wrong data_type: got journal, should be need_discard, fixing bcachefs (loop0): bucket 0:13 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing bcachefs (loop0): bucket 0:14 gen 0 has wrong data_type: got journal, should be need_discard, fixing bcachefs (loop0): bucket 0:14 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing bcachefs (loop0): bucket 0:15 gen 0 has wrong data_type: got journal, should be need_discard, fixing bcachefs (loop0): bucket 0:15 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing bcachefs (loop0): bucket 0:24 gen 0 has wrong data_type: got journal, should be need_discard, fixing bcachefs (loop0): bucket 0:24 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing bcachefs (loop0): bucket 0:29 gen 0 has wrong data_type: got btree, should be need_discard, fixing bcachefs (loop0): bucket 0:29 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing bcachefs (loop0): bucket 0:32 gen 0 has wrong data_type: got btree, should be need_discard, fixing bcachefs (loop0): bucket 0:32 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing done bcachefs (loop0): going read-write bcachefs (loop0): journal_replay... done bcachefs (loop0): check_extents_to_backpointers... bcachefs (loop0): scanning for missing backpointers in 4/128 buckets done bcachefs (loop0): check_snapshots... done bcachefs (loop0): check_subvols... bcachefs (loop0): running recovery pass reconstruct_snapshots (21), currently at check_subvols (24) - rewinding bcachefs (loop0): bch2_check_subvols(): error restart_recovery bcachefs (loop0): reconstruct_snapshots... bcachefs (loop0): snapshot node 4294967295 from tree 4294967295 missing, recreating ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5361 at fs/bcachefs/btree_iter.c:3194 __bch2_trans_kmalloc+0x50f/0x9d0 fs/bcachefs/btree_iter.c:3194 Modules linked in: CPU: 0 UID: 0 PID: 5361 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__bch2_trans_kmalloc+0x50f/0x9d0 fs/bcachefs/btree_iter.c:3194 Code: 00 28 00 00 e8 d2 5b 35 00 48 c7 c0 75 f7 ff ff 48 83 c4 48 5b 41 5c 41 5d 41 5e 41 5f 5d e9 18 de 53 07 cc e8 32 fe 94 fd 90 <0f> 0b 90 e9 d3 fb ff ff e8 24 fe 94 fd 90 0f 0b 90 e9 dc fd ff ff RSP: 0018:ffffc9000d266290 EFLAGS: 00010246 RAX: ffffffff842abd0e RBX: ffff8880559fc000 RCX: 0000000000100000 RDX: ffffc9000e843000 RSI: 00000000000fffff RDI: 0000000000100000 RBP: 0000000000020000 R08: ffffc9000d266690 R09: 0000000000000001 R10: ffffc9000d2665a0 R11: fffff52001a4cc81 R12: dffffc0000000000 R13: ffff8880559fc030 R14: 1ffff1100ab3f800 R15: 0000000000000011 FS: 00007f0be0d946c0(0000) GS:ffff88808d20d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc5bc1909c0 CR3: 00000000334f3000 CR4: 0000000000352ef0 Call Trace: bch2_trans_kmalloc_nomemzero_ip fs/bcachefs/btree_iter.h:586 [inline] bch2_trans_kmalloc_nomemzero fs/bcachefs/btree_iter.h:621 [inline] bch2_alloc_sectors_start_trans+0x1d59/0x1e80 fs/bcachefs/alloc_foreground.c:1251 __bch2_btree_node_alloc fs/bcachefs/btree_update_interior.c:320 [inline] bch2_btree_reserve_get+0x641/0x1810 fs/bcachefs/btree_update_interior.c:534 bch2_btree_update_start+0x18ff/0x1de0 fs/bcachefs/btree_update_interior.c:1289 bch2_btree_split_leaf+0x14b/0x8e0 fs/bcachefs/btree_update_interior.c:1921 bch2_trans_commit_error+0x1b7/0x1130 fs/bcachefs/btree_trans_commit.c:914 __bch2_trans_commit+0x1bb5/0x8870 fs/bcachefs/btree_trans_commit.c:1104 bch2_trans_commit fs/bcachefs/btree_update.h:241 [inline] bch2_reconstruct_snapshots+0x1ae6/0x2170 fs/bcachefs/snapshot.c:1017 bch2_run_recovery_pass fs/bcachefs/recovery_passes.c:484 [inline] __bch2_run_recovery_passes+0x3bd/0x1060 fs/bcachefs/recovery_passes.c:539 bch2_run_recovery_passes+0x184/0x210 fs/bcachefs/recovery_passes.c:610 bch2_fs_recovery+0x2690/0x3a50 fs/bcachefs/recovery.c:1016 bch2_fs_start+0xaaf/0xda0 fs/bcachefs/super.c:1213 bch2_fs_get_tree+0xb39/0x1520 fs/bcachefs/fs.c:2488 vfs_get_tree+0x92/0x2b0 fs/super.c:1815 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3808 do_mount fs/namespace.c:4136 [inline] __do_sys_mount fs/namespace.c:4347 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4324 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0bdff9038a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0be0d93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f0be0d93ef0 RCX: 00007f0bdff9038a RDX: 000020000000f640 RSI: 000020000000f680 RDI: 00007f0be0d93eb0 RBP: 000020000000f640 R08: 00007f0be0d93ef0 R09: 0000000000000010 R10: 0000000000000010 R11: 0000000000000246 R12: 000020000000f680 R13: 00007f0be0d93eb0 R14: 000000000000f62e R15: 00002000000001c0