bucket 0:35 gen 0 has wrong data_type: got free, should be btree, fixing bucket 0:35 gen 0 data type btree has wrong dirty_sectors: got 0, should be 256, fixing bucket 0:37 gen 0 has wrong data_type: got free, should be btree, fixing bucket 0:37 gen 0 data type btree has wrong dirty_sectors: got 0, should be 256, fixing bucket 0:38 gen 0 has wrong data_type: got free, should be btree, fixing bucket 0:38 gen 0 data type btree has wrong dirty_sectors: got 0, should be 256, fixing bucket 0:41 gen 0 has wrong data_type: got free, should be btree, fixing bucket 0:41 gen 0 data type btree has wrong dirty_sectors: got 0, should be 256, fixing bucket 0:42 gen 0 has wrong data_type: got free, should be btree, fixing bucket 0:42 gen 0 data type btree has wrong dirty_sectors: got 0, should be 256, fixing bucket 0:120 gen 0 has wrong data_type: got free, should be sb, fixing bucket 0:120 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing bucket 0:121 gen 0 has wrong data_type: got free, should be sb, fixing bucket 0:121 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing bucket 0:122 gen 0 has wrong data_type: got free, should be sb, fixing bucket 0:122 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing bucket 0:123 gen 0 has wrong data_type: got free, should be sb, fixing bucket 0:123 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing bucket 0:124 gen 0 has wrong data_type: got free, should be sb, fixing bucket 0:124 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing bucket 0:125 gen 0 has wrong data_type: got free, should be sb, fixing bucket 0:125 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing bucket 0:126 gen 0 has wrong data_type: got free, should be sb, fixing bucket 0:126 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing bucket 0:127 gen 0 has wrong data_type: got free, should be sb, fixing bucket 0:127 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing done bcachefs (loop0): going read-write bcachefs (loop0): journal_replay... done bcachefs (loop0): check_alloc_info... hole in alloc btree missing in freespace btree device 0 buckets 26-28, fixing hole in alloc btree missing in freespace btree device 0 buckets 26-28, fixing hole in alloc btree missing in freespace btree device 0 buckets 34-35, fixing done bcachefs (loop0): check_lrus... incorrect lru entry: lru fragmentation time 134217728 u64s 5 type set 18446462598867058688:34:0 len 0 ver 0 for u64s 5 type deleted 0:34:0 len 0 ver 0, fixing done bcachefs (loop0): check_extents_to_backpointers... missing backpointer for btree=inodes l=1 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 7589ab5e0c11cc7a written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0 got: u64s 5 type deleted 0:9961472:0 len 0 ver 0 want: u64s 9 type backpointer 0:9961472:0 len 0 ver 0: bucket=0:38:0 btree=inodes l=1 offset=0:0 len=256 pos=SPOS_MAX, fixing missing backpointer for btree=dirents l=1 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 9aa2895aefce4bdf written 24 min_key POS_MIN durability: 1 ptr: 0:41:0 gen 0 got: u64s 5 type deleted 0:10747904:0 len 0 ver 0 want: u64s 9 type backpointer 0:10747904:0 len 0 ver 0: bucket=0:41:0 btree=dirents l=1 offset=0:0 len=256 pos=SPOS_MAX, fixing ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_iter.c:2929! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted 6.12.0-rc5-syzkaller-00322-gb9021de3ec2f #0 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_node_iter_init+0x61d/0x630 fs/bcachefs/btree_iter.c:2929 Code: 89 d9 80 e1 07 fe c1 38 c1 0f 8c aa fd ff ff 48 89 df e8 b6 35 e3 fd e9 9d fd ff ff e8 4c 77 79 fd 90 0f 0b e8 44 77 79 fd 90 <0f> 0b e8 3c 77 79 fd 90 0f 0b e8 44 c4 ab 07 0f 1f 40 00 90 90 90 RSP: 0018:ffffc9000d116020 EFLAGS: 00010246 RAX: ffffffff841b625c RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000d5d1000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc9000d116158 R08: ffffffff841b602b R09: ffffffffffffffff R10: ffffffffffffffff R11: ffffffffffffffff R12: dffffc0000000000 R13: 0000000000000070 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fe02dbac6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558a433a7058 CR3: 00000000341c0000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_backpointer_get_node+0x2c6/0x880 fs/bcachefs/backpointers.c:358 bch2_backpointer_get_key+0x61c/0x970 fs/bcachefs/backpointers.c:335 check_bp_exists fs/bcachefs/backpointers.c:579 [inline] check_extent_to_backpointers+0x21f9/0x46b0 fs/bcachefs/backpointers.c:683 check_btree_root_to_backpointers fs/bcachefs/backpointers.c:717 [inline] bch2_check_extents_to_backpointers_pass fs/bcachefs/backpointers.c:868 [inline] bch2_check_extents_to_backpointers+0xeb8/0x1bf0 fs/bcachefs/backpointers.c:932 bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:185 bch2_run_recovery_passes+0x387/0x870 fs/bcachefs/recovery_passes.c:232 bch2_fs_recovery+0x25cc/0x39c0 fs/bcachefs/recovery.c:861 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1036 bch2_fs_get_tree+0xd68/0x1710 fs/bcachefs/fs.c:2170 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe02cd7feba 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:00007fe02dbabe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fe02dbabef0 RCX: 00007fe02cd7feba RDX: 0000000020000200 RSI: 0000000020005900 RDI: 00007fe02dbabeb0 RBP: 0000000020000200 R08: 00007fe02dbabef0 R09: 0000000001000081 R10: 0000000001000081 R11: 0000000000000246 R12: 0000000020005900 R13: 00007fe02dbabeb0 R14: 0000000000005968 R15: 0000000020000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_trans_node_iter_init+0x61d/0x630 fs/bcachefs/btree_iter.c:2929 Code: 89 d9 80 e1 07 fe c1 38 c1 0f 8c aa fd ff ff 48 89 df e8 b6 35 e3 fd e9 9d fd ff ff e8 4c 77 79 fd 90 0f 0b e8 44 77 79 fd 90 <0f> 0b e8 3c 77 79 fd 90 0f 0b e8 44 c4 ab 07 0f 1f 40 00 90 90 90 RSP: 0018:ffffc9000d116020 EFLAGS: 00010246 RAX: ffffffff841b625c RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000d5d1000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc9000d116158 R08: ffffffff841b602b R09: ffffffffffffffff R10: ffffffffffffffff R11: ffffffffffffffff R12: dffffc0000000000 R13: 0000000000000070 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fe02dbac6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558a433a7058 CR3: 00000000341c0000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400