repair success (rewriting node) bcachefs (loop0): btree node read error at btree freespace level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq e81e1ed936acf3df written 32 min_key POS_MIN durability: 1 ptr: 0:29:0 gen 0 loop0 node offset 0/32: incorrect min_key: got 0:227633266688:0 should be POS_MIN loop0 btree validate error flagging btree freespace lost data ret btree_node_read_err_bad_node bcachefs (loop0): error reading btree root btree=freespace level=0: btree_node_read_error, fixing bcachefs (loop0): btree node read error 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 loop0 node offset 0/24 bset u64s 0: invalid bkey format: field 4 too large: 0 + 1125899906842624 > 4294967295 u64s 3 fields 64:0, 64:0, 32:0, 0:0, 0:1125899906842624, 0:0 loop0 btree validate error flagging btree backpointers lost data ret btree_node_read_err_bad_node bcachefs (loop0): error reading btree root btree=backpointers level=0: btree_node_read_error, fixing bcachefs (loop0): check_topology... bcachefs (loop0): btree root extents unreadable, must recover from scan bcachefs (loop0): running recovery pass scan_for_btree_nodes (1), currently at check_topology (2) - rewinding bcachefs (loop0): bch2_check_root(): error restart_recovery bcachefs (loop0): scan_for_btree_nodes... bcachefs (loop0): btree node scan found 1 nodes after overwrites done bcachefs (loop0): check_topology... bcachefs (loop0): btree root extents unreadable, must recover from scan bcachefs (loop0): bch2_get_scanned_nodes(): recovery btree=extents 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 c6c25c03258c59c5 written 16 min_key 0:9:2751463424 durability: 1 ptr: 0:27:0 gen 0 bcachefs (loop0): bch2_get_scanned_nodes(): recovery btree=extents level=0 POS_MIN - 0:9:2751463423 bcachefs (loop0): btree node with incorrect min_key at btree=extents level=1: parent: u64s 5 type btree_ptr SPOS_MAX len 0 ver 0 next: u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c6c25c03258c59c5 written 16 min_key 0:9:2751463424 durability: 1 ptr: 0:27:0 gen 0, fixing bcachefs (loop0): set_node_min(): u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c6c25c03258c59c5 written 16 min_key 0:9:2751463424 durability: 1 ptr: 0:27:0 gen 0 -> POS_MIN 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 R 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 ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_iter.c:633! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5370 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_btree_path_level_init+0x9f9/0xa20 fs/bcachefs/btree_iter.c:633 Code: 91 fb ff ff e8 38 4f 97 fd 90 0f 0b e8 30 4f 97 fd 90 0f 0b e8 28 4f 97 fd 90 0f 0b e8 20 4f 97 fd 90 0f 0b e8 18 4f 97 fd 90 <0f> 0b e8 10 4f 97 fd 90 0f 0b e8 08 4f 97 fd 90 0f 0b e8 00 4f 97 RSP: 0018:ffffc9000d3de4a0 EFLAGS: 00010293 RAX: ffffffff84286ae8 RBX: ffff888052e38360 RCX: ffff888012144880 RDX: 0000000000000000 RSI: 00000000000000ff RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001a7bc88 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00000000000000ff FS: 00007fdfa3cfd6c0(0000) GS:ffff88808d007000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcfa5d909c0 CR3: 0000000012214000 CR4: 0000000000352ef0 Call Trace: btree_path_lock_root fs/bcachefs/btree_iter.c:787 [inline] bch2_btree_path_traverse_one+0xfec/0x21d0 fs/bcachefs/btree_iter.c:1203 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:250 [inline] __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2267 [inline] bch2_btree_iter_peek_max+0x9e8/0x58f0 fs/bcachefs/btree_iter.c:2384 bch2_btree_iter_peek_max_type fs/bcachefs/btree_iter.h:743 [inline] bch2_gc_btree fs/bcachefs/btree_gc.c:729 [inline] bch2_gc_btrees fs/bcachefs/btree_gc.c:792 [inline] bch2_check_allocations+0x120d/0x57b0 fs/bcachefs/btree_gc.c:1094 bch2_run_recovery_pass fs/bcachefs/recovery_passes.c:484 [inline] __bch2_run_recovery_passes+0x3ba/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+0x8f/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: 0033:0x7fdfa2d9066a 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:00007fdfa3cfce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fdfa3cfcef0 RCX: 00007fdfa2d9066a RDX: 0000200000000040 RSI: 0000200000000000 RDI: 00007fdfa3cfceb0 RBP: 0000200000000040 R08: 00007fdfa3cfcef0 R09: 0000000000000002 R10: 0000000000000002 R11: 0000000000000246 R12: 0000200000000000 R13: 00007fdfa3cfceb0 R14: 0000000000005a2e R15: 0000200000000080 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_btree_path_level_init+0x9f9/0xa20 fs/bcachefs/btree_iter.c:633 Code: 91 fb ff ff e8 38 4f 97 fd 90 0f 0b e8 30 4f 97 fd 90 0f 0b e8 28 4f 97 fd 90 0f 0b e8 20 4f 97 fd 90 0f 0b e8 18 4f 97 fd 90 <0f> 0b e8 10 4f 97 fd 90 0f 0b e8 08 4f 97 fd 90 0f 0b e8 00 4f 97 RSP: 0018:ffffc9000d3de4a0 EFLAGS: 00010293 RAX: ffffffff84286ae8 RBX: ffff888052e38360 RCX: ffff888012144880 RDX: 0000000000000000 RSI: 00000000000000ff RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001a7bc88 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00000000000000ff FS: 00007fdfa3cfd6c0(0000) GS:ffff88808d007000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcfa5d909c0 CR3: 0000000012214000 CR4: 0000000000352ef0