bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=xxhash,compression=lz4,fsck,fix_errors=yes,recovery_pass_last=reconstruct_snapshots,nojournal_transaction_names,reconstruct_alloc bcachefs (loop0): recovering from clean shutdown, journal seq 9223653511831486474 bcachefs (loop0): Doing compatible version upgrade from 1.7: mi_btree_bitmap to 1.13: inode_has_child_snapshots running recovery passes: check_allocations,check_inodes bcachefs (loop0): dropping and reconstructing all alloc info invalid btree id 251 (max 63), fixing 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: incorrect max key U64_MAX:18374686479671623680:50331647 bcachefs (loop0): flagging btree xattrs lost data error reading btree root xattrs l=0: btree_node_read_error, fixing bcachefs (loop0): will run btree node scan 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 POS_MIN durability: 1 ptr: 0:32:0 gen 0 node offset 0/16 bset u64s 0: incorrect max key 18446462598733299711:U64_MAX:U32_MAX bcachefs (loop0): flagging btree snapshots lost data error reading btree root snapshots l=0: btree_node_read_error, fixing bcachefs (loop0): scan_for_btree_nodes... bch2_scan_for_btree_nodes: nodes found after overwrites: xattrs l=0 seq=1 journal_seq=4 cookie=2285c34bed0abe32 POS_MIN-U64_MAX:18374686479671623680:50331647 ptr: 0:31:0 gen 0 lru l=0 seq=1 journal_seq=5 cookie=28f61e078e70b95c POS_MIN-SPOS_MAX ptr: 0:28:0 gen 0 deleted_inodes l=0 seq=1 journal_seq=0 cookie=1db8f60c84bb244c POS_MIN-SPOS_MAX ptr: 0:42:0 gen 0 done bcachefs (loop0): check_topology... bcachefs (loop0): btree root xattrs unreadable, must recover from scan bcachefs (loop0): bch2_get_scanned_nodes(): recovering xattrs l=0 POS_MIN - SPOS_MAX bcachefs (loop0): bch2_get_scanned_nodes(): recovering u64s 11 type btree_ptr_v2 U64_MAX:18374686479671623680:50331647 len 0 ver 0: seq 2285c34bed0abe32 written 16 min_key POS_MIN durability: 1 ptr: 0:31:0 gen 0 btree node with incorrect max_keyat btree xattrs level 1: parent: u64s 5 type btree_ptr SPOS_MAX len 0 ver 0 child: u64s 11 type btree_ptr_v2 U64_MAX:18374686479671623680:50331647 len 0 ver 0: seq 2285c34bed0abe32 written 16 min_key POS_MIN durability: 1 ptr: 0:31:0 gen 0, fixing bcachefs (loop0): bch2_get_scanned_nodes(): recovering xattrs l=0 U64_MAX:18374686479671623680:50331648 - SPOS_MAX bcachefs (loop0): set_node_max(): u64s 11 type btree_ptr_v2 U64_MAX:18374686479671623680:50331647 len 0 ver 0: seq 2285c34bed0abe32 written 16 min_key POS_MIN durability: 1 ptr: 0:31:0 gen 0 -> SPOS_MAX bcachefs (loop0): btree root snapshots unreadable, must recover from scan no nodes found for btree snapshots, continuing done bcachefs (loop0): accounting_read... done bcachefs (loop0): alloc_read... done bcachefs (loop0): stripes_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... btree ptr not marked in member info btree allocated bitmap 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 btree ptr not marked in member info btree allocated bitmap 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 done bcachefs (loop0): going read-write bcachefs (loop0): journal_replay... ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_write_buffer.c:147! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted 6.13.0-rc1-syzkaller-00316-gb5f217084ab3 #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:wb_flush_one fs/bcachefs/btree_write_buffer.c:147 [inline] RIP: 0010:bch2_btree_write_buffer_flush_locked+0x56bd/0x5a00 fs/bcachefs/btree_write_buffer.c:379 Code: c9 fd f4 ff e8 64 8b 6e fd 90 0f 0b e8 5c 8b 6e fd 90 0f 0b e8 54 8b 6e fd 90 0f 0b e8 4c 8b 6e fd 90 0f 0b e8 44 8b 6e fd 90 <0f> 0b e8 3c 8b 6e fd 90 0f 0b e8 f4 85 9f 07 e8 2f 8b 6e fd 90 0f RSP: 0018:ffffc9000d30e760 EFLAGS: 00010293 RAX: ffffffff8430e6cc RBX: 800100000000000b RCX: ffff88801aaec880 RDX: 0000000000000000 RSI: 000100000000000b RDI: 800100000000000b RBP: ffffc9000d30ebb0 R08: ffffffff8430a97b R09: 0000000000000000 R10: ffffc9000d30e240 R11: fffff52001a61c49 R12: ffffc90024200230 R13: ffff888045d50000 R14: 000100000000000b R15: ffffc90024200000 FS: 00007f2a4bed76c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ede08f9078 CR3: 00000000427c8000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btree_write_buffer_flush_seq+0x1b23/0x1cc0 fs/bcachefs/btree_write_buffer.c:517 bch2_btree_write_buffer_journal_flush+0xc7/0x150 fs/bcachefs/btree_write_buffer.c:533 journal_flush_pins+0x5f7/0xb20 fs/bcachefs/journal_reclaim.c:565 journal_flush_done+0x8e/0x260 fs/bcachefs/journal_reclaim.c:819 bch2_journal_flush_pins+0x18a/0x3a0 fs/bcachefs/journal_reclaim.c:852 bch2_journal_flush_all_pins fs/bcachefs/journal_reclaim.h:76 [inline] bch2_journal_replay+0x270f/0x2a40 fs/bcachefs/recovery.c:383 bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:191 bch2_run_recovery_passes+0x3a7/0x880 fs/bcachefs/recovery_passes.c:244 bch2_fs_recovery+0x25cc/0x39d0 fs/bcachefs/recovery.c:861 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1037 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: 0033:0x7f2a4b18167a 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:00007f2a4bed6e88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f2a4bed6f10 RCX: 00007f2a4b18167a RDX: 0000000020000180 RSI: 0000000020000540 RDI: 00007f2a4bed6ed0 RBP: 0000000020000180 R08: 00007f2a4bed6f10 R09: 0000000000800000 R10: 0000000000800000 R11: 0000000000000246 R12: 0000000020000540 R13: 00007f2a4bed6ed0 R14: 00000000000059a3 R15: 00000000200001c0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:wb_flush_one fs/bcachefs/btree_write_buffer.c:147 [inline] RIP: 0010:bch2_btree_write_buffer_flush_locked+0x56bd/0x5a00 fs/bcachefs/btree_write_buffer.c:379 Code: c9 fd f4 ff e8 64 8b 6e fd 90 0f 0b e8 5c 8b 6e fd 90 0f 0b e8 54 8b 6e fd 90 0f 0b e8 4c 8b 6e fd 90 0f 0b e8 44 8b 6e fd 90 <0f> 0b e8 3c 8b 6e fd 90 0f 0b e8 f4 85 9f 07 e8 2f 8b 6e fd 90 0f RSP: 0018:ffffc9000d30e760 EFLAGS: 00010293 RAX: ffffffff8430e6cc RBX: 800100000000000b RCX: ffff88801aaec880 RDX: 0000000000000000 RSI: 000100000000000b RDI: 800100000000000b RBP: ffffc9000d30ebb0 R08: ffffffff8430a97b R09: 0000000000000000 R10: ffffc9000d30e240 R11: fffff52001a61c49 R12: ffffc90024200230 R13: ffff888045d50000 R14: 000100000000000b R15: ffffc90024200000 FS: 00007f2a4bed76c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ede08f9078 CR3: 00000000427c8000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400