bcachefs (loop0): dropping and reconstructing all alloc info bcachefs (loop0): bcachefs (loop0): error validating btree node at btree extents level 0/0 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 node offset 8/16 bset u64s 49 bset byte offset 288: bad k->u64s 0 (min 3 max 253), fixing bcachefs (loop0): bcachefs (loop0): error validating btree node at btree extents level 0/0 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 node offset 8/16 bset u64s 47 bset byte offset 352: key extends past end of bset, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at due to error btree=extents level=0 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 bcachefs (loop0): invalid bkey in btree_node btree=inodes level=0: u64s 18 type inode_v3 0:536870914:U32_MAX len 0 ver 0: (unpack error) invalid variable length fields, deleting bcachefs (loop0): 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 8/16: btree node data missing: expected 16 sectors, found 8, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at due to error btree=xattrs level=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 bcachefs (loop0): running explicit recovery pass check_topology (2), currently at recovery_pass_empty (0) bcachefs (loop0): bcachefs (loop0): error validating btree node on loop0 at btree subvolumes level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c0bef60d07ceb940 written 16 min_key 0:2147549184:0 durability: 1 ptr: 0:35:0 gen 0 node offset 0/16: incorrect min_key: got POS_MIN should be 0:2147549184:0, btree topology error: bcachefs (loop0): flagging btree subvolumes 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=subvolumes level=0: btree_node_read_error, fixing bcachefs (loop0): bcachefs (loop0): error validating btree node on loop0 at btree snapshots level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ebb8d5a9e3463bdb written 16 min_key 0:12884901888:0 durability: 1 ptr: 0:32:0 gen 0 node offset 0/16: incorrect min_key: got POS_MIN should be 0:12884901888:0, btree topology error: bcachefs (loop0): flagging btree snapshots lost data bcachefs (loop0): error reading btree root btree=snapshots level=0: btree_node_read_error, fixing bcachefs (loop0): 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 65535 min_key R 0:1536:0 durability: 1 ptr: 0:42:0 gen 0 node offset 8/65535: btree node data missing: expected 65535 sectors, found 8, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at due to error btree=deleted_inodes level=0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 1db8f60c84bb244c written 65535 min_key R 0:1536:0 durability: 1 ptr: 0:42:0 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 subvolumes unreadable, must recover from scan bcachefs (loop0): bch2_get_scanned_nodes(): recovery btree=subvolumes 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 c0bef60d07ceb940 written 16 min_key POS_MIN durability: 1 ptr: 0:35:0 gen 0 bcachefs (loop0): btree root snapshots unreadable, must recover from scan bcachefs (loop0): no nodes found for btree snapshots, continuing done bcachefs (loop0): accounting_read... done bcachefs (loop0): alloc_read... done bcachefs (loop0): snapshots_read... bcachefs (loop0): running explicit recovery pass reconstruct_snapshots (21), currently at snapshots_read (7) done bcachefs (loop0): check_allocations... ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_iter.c:619! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted 6.15.0-rc4-syzkaller-00052-g4f79eaa2ceac #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+0xa05/0xa20 fs/bcachefs/btree_iter.c:619 Code: fd 90 0f 0b e8 7c de a4 fd 90 0f 0b e8 74 de a4 fd 90 0f 0b e8 6c de a4 fd 90 0f 0b e8 64 de a4 fd 90 0f 0b e8 5c de a4 fd 90 <0f> 0b e8 54 de a4 fd 90 0f 0b e8 4c de a4 fd 90 0f 0b 66 0f 1f 84 RSP: 0018:ffffc9000d3fe608 EFLAGS: 00010287 RAX: ffffffff841ae1f4 RBX: ffff888042a582f0 RCX: 0000000000100000 RDX: ffffc9000dcda000 RSI: 0000000000094b39 RDI: 0000000000094b3a RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001a7fcb8 R12: 0000000000000600 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f51b668b6c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556c44b2e078 CR3: 000000003ec73000 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:677 [inline] bch2_gc_btrees fs/bcachefs/btree_gc.c:740 [inline] bch2_check_allocations+0x11a5/0x5470 fs/bcachefs/btree_gc.c:1042 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:1083 bch2_fs_get_tree+0xd99/0x1340 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: 0033:0x7f51b579010a 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:00007f51b668ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f51b668aef0 RCX: 00007f51b579010a RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007f51b668aeb0 RBP: 0000200000000000 R08: 00007f51b668aef0 R09: 0000000000800410 R10: 0000000000800410 R11: 0000000000000246 R12: 0000200000000100 R13: 00007f51b668aeb0 R14: 00000000000059f4 R15: 0000200000000180 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_btree_path_level_init+0xa05/0xa20 fs/bcachefs/btree_iter.c:619 Code: fd 90 0f 0b e8 7c de a4 fd 90 0f 0b e8 74 de a4 fd 90 0f 0b e8 6c de a4 fd 90 0f 0b e8 64 de a4 fd 90 0f 0b e8 5c de a4 fd 90 <0f> 0b e8 54 de a4 fd 90 0f 0b e8 4c de a4 fd 90 0f 0b 66 0f 1f 84 RSP: 0018:ffffc9000d3fe608 EFLAGS: 00010287 RAX: ffffffff841ae1f4 RBX: ffff888042a582f0 RCX: 0000000000100000 RDX: ffffc9000dcda000 RSI: 0000000000094b39 RDI: 0000000000094b3a RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001a7fcb8 R12: 0000000000000600 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f51b668b6c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556c44b2e078 CR3: 000000003ec73000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400