node offset 0/24 bset u64s 0: incorrect max key SPOS_MAX, btree topology error: bcachefs (loop0): flagging btree dirents lost data bcachefs (loop0): running explicit recovery pass scan_for_btree_nodes (1), currently at recovery_pass_empty (0) bcachefs (loop0): error reading btree root btree=dirents level=0: btree_node_read_error, fixing bcachefs (loop0): invalid bkey in btree_node btree=subvolumes level=0: u64s 7 type subvolume POS_MIN len 0 ver 0: root 4096 snapshot id 4294967295 invalid pos, deleting bcachefs (loop0): bcachefs (loop0): error validating btree node on loop0 at btree lru level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 28f61e078e70b95c written 11422 min_key R 0:0:U32_MAX durability: 1 ptr: 0:28:0 gen 0 node offset 16/11422: btree node data missing: expected 11422 sectors, found 16, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at due to error btree=lru level=0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 28f61e078e70b95c written 11422 min_key R 0:0:U32_MAX durability: 1 ptr: 0:28:0 gen 0 bcachefs (loop0): btree node read error: no device to read from at freespace level 0/0 u64s 11 type 128 SPOS_MAX len 0 ver 0: bcachefs (loop0): flagging btree freespace lost data bcachefs (loop0): error reading btree root btree=freespace level=0: btree_node_read_error, fixing bcachefs (loop0): bcachefs (loop0): error validating btree node at btree backpointers level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 4a8b0fa43a9980a6 written 24 min_key POS_MIN durability: 1 ptr: 0:37:0 gen 0 node offset 8/24 bset u64s 42 bset byte offset 208: keys out of order: u64s 9 type backpointer 50331648:8126464:0 len 0 ver 0 > u64s 9 type backpointer 0:8912896:0 len 0 ver 0, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at due to error btree=backpointers level=0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 4a8b0fa43a9980a6 written 24 min_key POS_MIN durability: 1 ptr: 0:37:0 gen 0 bcachefs (loop0): scan_for_btree_nodes... bcachefs (loop0): btree node scan found 7 nodes after overwrites done bcachefs (loop0): check_topology... bcachefs (loop0): btree root dirents unreadable, must recover from scan bcachefs (loop0): bch2_get_scanned_nodes(): recovery btree=dirents level=0 POS_MIN - SPOS_MAX bcachefs (loop0): bch2_get_scanned_nodes(): recovering 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 done bcachefs (loop0): accounting_read... done bcachefs (loop0): alloc_read... done bcachefs (loop0): stripes_read... done bcachefs (loop0): initialize_subvolumes... done bcachefs (loop0): snapshots_read... done bcachefs (loop0): check_allocations... bcachefs (loop0): bucket 0:34 data type user ptr gen 0 missing in alloc btree while marking u64s 7 type extent 4099:8:U32_MAX len 8 ver 0: durability: 1 crc: c_size 8 size 8 offset 0 nonce 0 csum none 0:0 compress incompressible ptr: 0:34:0 gen 0, fixing bcachefs (loop0): bucket 0:27 data type btree ptr gen 0 missing in alloc btree while marking u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c6c25c03258c59c5 written 16 min_key POS_MIN durability: 1 ptr: 0:27:0 gen 0, fixing bcachefs (loop0): bucket 0:38 data type btree ptr gen 0 missing in alloc btree while marking 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, fixing bcachefs (loop0): bucket 0:41 data type btree ptr gen 0 missing in alloc btree while marking 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, fixing bcachefs (loop0): bucket 0:31 data type btree ptr gen 0 missing in alloc btree while marking u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 2285c34bed0abe32 written 16 min_key POS_MIN durability: 1 ptr: 0:31:0 gen 0, fixing bcachefs (loop0): bucket 0:35 data type btree ptr gen 0 missing in alloc btree while marking u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c0bef60d07ceb940 written 16 min_key POS_MIN durability: 1 ptr: 0:35:0 gen 0, fixing bcachefs (loop0): bucket 0:32 data type btree ptr gen 0 missing in alloc btree while marking u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ebb8d5a9e3463bdb written 16 min_key POS_MIN durability: 1 ptr: 0:32:0 gen 0, fixing ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_iter.c:619! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5310 Comm: syz.0.0 Not tainted 6.15.0-rc5-syzkaller-00032-g0d8d44db295c #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_btree_path_level_init+0x9fd/0xa20 fs/bcachefs/btree_iter.c:619 Code: 8d fb ff ff e8 84 bf a4 fd 90 0f 0b e8 7c bf a4 fd 90 0f 0b e8 74 bf a4 fd 90 0f 0b e8 6c bf a4 fd 90 0f 0b e8 64 bf a4 fd 90 <0f> 0b e8 5c bf a4 fd 90 0f 0b e8 54 bf a4 fd 90 0f 0b e8 4c bf a4 RSP: 0018:ffffc9000d3b6608 EFLAGS: 00010293 RAX: ffffffff841b10ec RBX: ffff8880527742f0 RCX: ffff88801f6d8000 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001a76cb8 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00000000ffffffff FS: 00007fa40c3106c0(0000) GS:ffff88808d6cb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005648bfc98088 CR3: 0000000033c2e000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btree_path_lock_root fs/bcachefs/btree_iter.c:773 [inline] bch2_btree_path_traverse_one+0xe31/0x2430 fs/bcachefs/btree_iter.c:1189 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:248 [inline] __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2243 [inline] bch2_btree_iter_peek_max+0x988/0x5260 fs/bcachefs/btree_iter.c:2347 bch2_btree_iter_peek_max_type fs/bcachefs/btree_iter.h:702 [inline] bch2_gc_btree fs/bcachefs/btree_gc.c:700 [inline] bch2_gc_btrees fs/bcachefs/btree_gc.c:763 [inline] bch2_check_allocations+0x11a5/0x5470 fs/bcachefs/btree_gc.c:1065 bch2_run_recovery_pass+0xdf/0x1d0 fs/bcachefs/recovery_passes.c:227 bch2_run_recovery_passes+0x2a0/0xdb0 fs/bcachefs/recovery_passes.c:280 bch2_fs_recovery+0x2399/0x37b0 fs/bcachefs/recovery.c:937 bch2_fs_start+0x70b/0xae0 fs/bcachefs/super.c:1091 bch2_fs_get_tree+0xd99/0x13a0 fs/bcachefs/fs.c:2570 vfs_get_tree+0x8f/0x2b0 fs/super.c:1759 do_new_mount+0x24a/0xa40 fs/namespace.c:3884 do_mount fs/namespace.c:4224 [inline] __do_sys_mount fs/namespace.c:4435 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4412 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa40b59010a 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:00007fa40c30fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fa40c30fef0 RCX: 00007fa40b59010a RDX: 00002000000000c0 RSI: 0000200000000040 RDI: 00007fa40c30feb0 RBP: 00002000000000c0 R08: 00007fa40c30fef0 R09: 0000000000200000 R10: 0000000000200000 R11: 0000000000000246 R12: 0000200000000040 R13: 00007fa40c30feb0 R14: 00000000000059f5 R15: 0000200000005b40 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_btree_path_level_init+0x9fd/0xa20 fs/bcachefs/btree_iter.c:619 Code: 8d fb ff ff e8 84 bf a4 fd 90 0f 0b e8 7c bf a4 fd 90 0f 0b e8 74 bf a4 fd 90 0f 0b e8 6c bf a4 fd 90 0f 0b e8 64 bf a4 fd 90 <0f> 0b e8 5c bf a4 fd 90 0f 0b e8 54 bf a4 fd 90 0f 0b e8 4c bf a4 RSP: 0018:ffffc9000d3b6608 EFLAGS: 00010293 RAX: ffffffff841b10ec RBX: ffff8880527742f0 RCX: ffff88801f6d8000 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001a76cb8 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00000000ffffffff FS: 00007fa40c3106c0(0000) GS:ffff88808d6cb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005648bfc98088 CR3: 0000000033c2e000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400