bcachefs (loop0): btree node read error: no device to read from at 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: 0 ptr: 9:6912 gen 0 bcachefs (loop0): flagging btree extents lost data error reading btree root extents l=0: btree_node_read_error, fixing bcachefs (loop0): will run btree node scan invalid bkey u64s 18 type inode_v3 0:536870912:U32_MAX len 0 ver 0: (unpack error) invalid variable length fields: delete?, fixing invalid btree root xattrs, fixing bcachefs (loop0): flagging btree xattrs lost data 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 47384 min_key R 0:973312:0 durability: 1 ptr: 0:26:0 gen 0 node offset 8/47384 bset u64s 375 bset byte offset 2256: keys out of order: u64s 15 type alloc_v4 0:2339:0 len 0 ver 0 > u64s 15 type alloc_v4 0:38:0 len 0 ver 0, fixing bcachefs (loop0): error validating btree node on loop0 at btree alloc level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ac62141f8dc7e261 written 47384 min_key R 0:973312:0 durability: 1 ptr: 0:26:0 gen 0 node offset 16/47384 bset u64s 60: bset at wrong sector offset, fixing bcachefs (loop0): error validating btree node on loop0 at btree alloc level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ac62141f8dc7e261 written 47384 min_key R 0:973312:0 durability: 1 ptr: 0:26:0 gen 0 node offset 24/47384: btree node data missing: expected 47384 sectors, found 24, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at btree=alloc level=0 SPOS_MAX due to error bcachefs (loop0): error validating btree node on loop0 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 node offset 0/32 bset u64s 0: incorrect max key 18446742974197923840:4398046511103:U32_MAX bcachefs (loop0): flagging btree freespace lost data error reading btree root freespace l=0: btree_node_read_error, 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 POS_MIN durability: 1 ptr: 0:42:0 gen 0 node offset 0/8 bset u64s 0: checksum error, type none: got should be , fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at btree=deleted_inodes level=0 SPOS_MAX due to error bcachefs (loop0): scan_for_btree_nodes... bch2_scan_for_btree_nodes: nodes found after overwrites: extents l=0 seq=1 journal_seq=5 cookie=c6c25c03258c59c5 POS_MIN-SPOS_MAX ptr: 0:27:0 gen 0 xattrs l=0 seq=1 journal_seq=4 cookie=2285c34bed0abe32 POS_MIN-SPOS_MAX 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 extents unreadable, must recover from scan bcachefs (loop0): bch2_get_scanned_nodes(): recovering extents l=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 POS_MIN durability: 1 ptr: 0:27:0 gen 0 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 SPOS_MAX len 0 ver 0: seq 2285c34bed0abe32 written 16 min_key POS_MIN durability: 1 ptr: 0:31:0 gen 0 done bcachefs (loop0): accounting_read... done bcachefs (loop0): alloc_read... done bcachefs (loop0): stripes_read... done bcachefs (loop0): snapshots_read... done bcachefs (loop0): check_allocations... ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_iter.c:631! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5345 Comm: syz.0.0 Not tainted 6.12.0-syzkaller-09073-g9f16d5e6f220 #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_btree_path_level_init+0x9d2/0x9f0 fs/bcachefs/btree_iter.c:631 Code: fd 90 0f 0b e8 7f 3a 85 fd 90 0f 0b e8 77 3a 85 fd 90 0f 0b e8 6f 3a 85 fd 90 0f 0b e8 67 3a 85 fd 90 0f 0b e8 5f 3a 85 fd 90 <0f> 0b e8 57 3a 85 fd 90 0f 0b e8 4f 3a 85 fd 90 0f 0b 66 2e 0f 1f RSP: 0018:ffffc9000d4261e0 EFLAGS: 00010283 RAX: ffffffff8410a5b1 RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc9000eb8a000 RSI: 000000000005d2e9 RDI: 000000000005d2ea RBP: dffffc0000000000 R08: ffffffff84109e3b R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff203a9ff R12: ffff888045b83800 R13: 00000000000eda00 R14: 0000000000000000 R15: ffff888055ca0033 FS: 00007fc2173b06c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055728a462078 CR3: 0000000043532000 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:769 [inline] bch2_btree_path_traverse_one+0x10de/0x2940 fs/bcachefs/btree_iter.c:1183 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:247 [inline] __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2210 [inline] bch2_btree_iter_peek_upto+0xb58/0x70e0 fs/bcachefs/btree_iter.c:2310 bch2_btree_iter_peek_upto_type fs/bcachefs/btree_iter.h:685 [inline] bch2_gc_btree fs/bcachefs/btree_gc.c:670 [inline] bch2_gc_btrees fs/bcachefs/btree_gc.c:729 [inline] bch2_check_allocations+0x1abe/0x7070 fs/bcachefs/btree_gc.c:1133 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: 0033:0x7fc21657ffba 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:00007fc2173afe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fc2173afef0 RCX: 00007fc21657ffba RDX: 0000000020000000 RSI: 0000000020005900 RDI: 00007fc2173afeb0 RBP: 0000000020000000 R08: 00007fc2173afef0 R09: 0000000000004041 R10: 0000000000004041 R11: 0000000000000246 R12: 0000000020005900 R13: 00007fc2173afeb0 R14: 000000000000594a R15: 0000000020001440 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_btree_path_level_init+0x9d2/0x9f0 fs/bcachefs/btree_iter.c:631 Code: fd 90 0f 0b e8 7f 3a 85 fd 90 0f 0b e8 77 3a 85 fd 90 0f 0b e8 6f 3a 85 fd 90 0f 0b e8 67 3a 85 fd 90 0f 0b e8 5f 3a 85 fd 90 <0f> 0b e8 57 3a 85 fd 90 0f 0b e8 4f 3a 85 fd 90 0f 0b 66 2e 0f 1f RSP: 0018:ffffc9000d4261e0 EFLAGS: 00010283 RAX: ffffffff8410a5b1 RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc9000eb8a000 RSI: 000000000005d2e9 RDI: 000000000005d2ea RBP: dffffc0000000000 R08: ffffffff84109e3b R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff203a9ff R12: ffff888045b83800 R13: 00000000000eda00 R14: 0000000000000000 R15: ffff888055ca0033 FS: 00007fc2173b06c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055728a462078 CR3: 0000000043532000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400