loop0: detected capacity change from 0 to 32768 bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,nocow bcachefs (loop0): recovering from clean shutdown, journal seq 10 bcachefs (loop0): Version upgrade required: Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete Doing incompatible version upgrade from 0.24: unwritten_extents to 1.20: directory_size running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance bcachefs (loop0): error validating btree node on loop0 at btree dirents level 0/0 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 node offset 16/24: btree node data missing: expected 24 sectors, found 16, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at due to error btree=dirents level=0 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 bcachefs (loop0): error validating btree node on loop0 at btree xattrs level 0/0 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 node offset 0/16 bset u64s 0: invalid bkey format: incorrect key_u64s: got 4, should be 3 u64s 4 fields 64:0, 64:0, 32:0, 0:0, 0:0, 0:0 bcachefs (loop0): running explicit recovery pass check_topology (2), currently at recovery_pass_empty (0) bcachefs (loop0): flagging btree xattrs lost data bcachefs (loop0): running explicit recovery pass scan_for_btree_nodes (1), currently at recovery_pass_empty (0) error reading btree root btree=xattrs level=0: btree_node_read_error, fixing bcachefs (loop0): error validating btree node at btree alloc level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ac62141f8dc7e261 written 24 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0 node offset 8/24 bset u64s 375 bset byte offset 184: keys out of order: u64s 11 type alloc_v4 0:32:0 len 0 ver 0 > u64s 11 type alloc_v4 0:2:0 len 0 ver 0, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at due to error btree=alloc level=0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ac62141f8dc7e261 written 24 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0 invalid bkey in btree_node btree=backpointers level=0: u64s 9 type backpointer 255:18374686479681323008:0 len 0 ver 0: sector=255:17944029765313792 btree=backpointers level=1 suboffset=0 len=256 gen=0 pos=SPOS_MAX backpointer for BCH_SB_MEMBER_INVALID: delete?, fixing bcachefs (loop0): error validating btree node on loop0 at btree deleted_inodes level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 1db8f60c84bb244c written 8 min_key 2048:0:0 durability: 1 ptr: 0:42:0 gen 0 node offset 0/8: incorrect min_key: got 22799473113563136:0:0 should be 2048:0:0 bcachefs (loop0): flagging btree deleted_inodes lost data error reading btree root btree=deleted_inodes level=0: btree_node_read_error, fixing bcachefs (loop0): scan_for_btree_nodes... bcachefs (loop0): btree node scan found 6 nodes after overwrites done bcachefs (loop0): check_topology... bcachefs (loop0): btree root xattrs unreadable, must recover from scan no nodes found for btree xattrs, continuing bcachefs (loop0): btree root deleted_inodes unreadable, must recover from scan bcachefs (loop0): bch2_get_scanned_nodes(): recovery btree=deleted_inodes level=0 POS_MIN - SPOS_MAX bcachefs (loop0): bch2_get_scanned_nodes(): recovering u64s 11 type btree_ptr_v2 562949953421311:U64_MAX:U32_MAX len 0 ver 0: seq 1db8f60c84bb244c written 8 min_key 22799473113563136:0:0 durability: 1 ptr: 0:42:0 gen 0 invalid bkey in btree_node btree=deleted_inodes level=1: u64s 11 type btree_ptr_v2 562949953421311:U64_MAX:U32_MAX len 0 ver 0: seq 1db8f60c84bb244c written 8 min_key 22799473113563136:0:0 durability: 1 ptr: 0:42:0 gen 0 min_key > key: delete?, fixing ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_node_scan.c:585! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted 6.13.0-syzkaller-08291-g805ba04cb7cc #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_get_scanned_nodes+0x1f9a/0x1fa0 fs/bcachefs/btree_node_scan.c:580 Code: 24 08 e8 99 c4 df fd 48 8d b4 24 10 04 00 00 4c 89 fa e9 83 e6 ff ff e8 24 7d ae 07 e8 2f 30 79 fd 90 0f 0b e8 27 30 79 fd 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000d3b6c00 EFLAGS: 00010293 RAX: ffffffff84463ca9 RBX: 00000000fffff757 RCX: ffff888000bb8000 RDX: 0000000000000000 RSI: 00000000fffff757 RDI: 0000000000000000 RBP: ffffc9000d3b7100 R08: ffffffff8446322a R09: 1ffffffff285f729 R10: dffffc0000000000 R11: fffffbfff285f72a R12: 1ffff92001a76db8 R13: ffffc9000d3b6f80 R14: dffffc0000000000 R15: ffff888053200000 FS: 00007f3b0c7416c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055b23d868018 CR3: 0000000040f28000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_check_topology+0x7d0/0xe30 fs/bcachefs/btree_gc.c:543 bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:226 bch2_run_recovery_passes+0x2ad/0xa90 fs/bcachefs/recovery_passes.c:291 bch2_fs_recovery+0x265a/0x3de0 fs/bcachefs/recovery.c:937 bch2_fs_start+0x37c/0x610 fs/bcachefs/super.c:1030 bch2_fs_get_tree+0xd8d/0x1740 fs/bcachefs/fs.c:2203 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3560 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088 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: 0033:0x7f3b0b98e4ca 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:00007f3b0c740e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f3b0c740ef0 RCX: 00007f3b0b98e4ca RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007f3b0c740eb0 RBP: 00000000200000c0 R08: 00007f3b0c740ef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 R13: 00007f3b0c740eb0 R14: 00000000000059ad R15: 0000000020000480 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_get_scanned_nodes+0x1f9a/0x1fa0 fs/bcachefs/btree_node_scan.c:580 Code: 24 08 e8 99 c4 df fd 48 8d b4 24 10 04 00 00 4c 89 fa e9 83 e6 ff ff e8 24 7d ae 07 e8 2f 30 79 fd 90 0f 0b e8 27 30 79 fd 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000d3b6c00 EFLAGS: 00010293 RAX: ffffffff84463ca9 RBX: 00000000fffff757 RCX: ffff888000bb8000 RDX: 0000000000000000 RSI: 00000000fffff757 RDI: 0000000000000000 RBP: ffffc9000d3b7100 R08: ffffffff8446322a R09: 1ffffffff285f729 R10: dffffc0000000000 R11: fffffbfff285f72a R12: 1ffff92001a76db8 R13: ffffc9000d3b6f80 R14: dffffc0000000000 R15: ffff888053200000 FS: 00007f3b0c7416c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fda86322aa7 CR3: 0000000040f28000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400