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 extents level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c6c25c03258c5900 written 16 min_key POS_MIN durability: 1 ptr: 0:27:0 gen 0 node offset 0/16: got wrong btree node: got btree=extents l=0 seq 14322110933576210885x min: POS_MIN max: SPOS_MAX 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 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 btree=dirents level=0 SPOS_MAX due to error 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 24 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0 node offset 0/24: incorrect min_key: got 65536:0:0 should be POS_MIN bcachefs (loop0): flagging btree alloc lost data error reading btree root alloc l=0: btree_node_read_error, fixing bcachefs (loop0): error validating btree node on loop0 at btree lru level 0/0 u64s 11 type btree_ptr_v2 18446744073692949759:U64_MAX:U32_MAX len 0 ver 0: seq 28f61e078e70b95c written 16 min_key POS_MIN durability: 1 ptr: 0:28:0 gen 0 node offset 0/16 bset u64s 0: incorrect max key SPOS_MAX bcachefs (loop0): flagging btree lru lost data error reading btree root lru l=0: btree_node_read_error, fixing invalid bkey u64s 5 type set 0:0:512 len 1 ver 0 size greater than offset (1 > 0): delete?, fixing 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: incorrect btree id bcachefs (loop0): flagging btree deleted_inodes lost data error reading btree root deleted_inodes l=0: btree_node_read_error, fixing bcachefs (loop0): scan_for_btree_nodes... bch2_scan_for_btree_nodes: nodes found after overwrites: extents l=0 seq=0 journal_seq=0 cookie=1db8f60c84bb244c 432345564227567616:0:0-17592186044415:18446744073692774400:0 ptr: 0:42:0 gen 0 inodes l=0 seq=1 journal_seq=5 cookie=7589ab5e0c11cc7a POS_MIN-SPOS_MAX ptr: 0:38:0 gen 0 dirents l=0 seq=1 journal_seq=1281 cookie=9aa2895aefce4bdf POS_MIN-SPOS_MAX ptr: 0:41:0 gen 0 xattrs l=0 seq=1 journal_seq=4 cookie=2285c34bed0abe32 POS_MIN-SPOS_MAX ptr: 0:31:0 gen 0 subvolumes l=0 seq=1 journal_seq=1 cookie=c0bef60d07ceb940 POS_MIN-SPOS_MAX ptr: 0:35:0 gen 0 snapshots l=0 seq=1 journal_seq=1 cookie=ebb8d5a9e3463bdb POS_MIN-SPOS_MAX ptr: 0:32:0 gen 0 lru l=0 seq=1 journal_seq=5 cookie=28f61e078e70b95c POS_MIN-SPOS_MAX ptr: 0:28:0 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 17592186044415:18446744073692774400:0 len 0 ver 0: seq 1db8f60c84bb244c written 8 min_key 432345564227567616:0:0 durability: 1 ptr: 0:42:0 gen 0 invalid bkey u64s 11 type btree_ptr_v2 17592186044415:18446744073692774400:0 len 0 ver 0: seq 1db8f60c84bb244c written 8 min_key 432345564227567616:0:0 durability: 1 ptr: 0:42:0 gen 0 min_key > key: delete?, fixing ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_node_scan.c:536! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #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+0x1da7/0x1db0 fs/bcachefs/btree_node_scan.c:536 Code: 24 30 e8 7c 96 e2 fd 4c 89 fe 48 8d 94 24 60 03 00 00 e9 57 e8 ff ff e8 e7 64 a5 07 e8 22 2f 7c fd 90 0f 0b e8 1a 2f 7c fd 90 <0f> 0b 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000d48ed20 EFLAGS: 00010283 RAX: ffffffff842344c6 RBX: 00000000fffff75a RCX: 0000000000100000 RDX: ffffc9000e442000 RSI: 00000000000543f6 RDI: 00000000000543f7 RBP: ffffc9000d48f1c0 R08: ffffffff84233b03 R09: 1ffffffff2854930 R10: dffffc0000000000 R11: fffffbfff2854931 R12: ffffc9000d48f080 R13: 1ffff92001a91dd8 R14: 0000000000000000 R15: ffff888054080000 FS: 00007fa69f8786c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005623332700c8 CR3: 0000000043dba000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_check_topology+0x537/0xb20 fs/bcachefs/btree_gc.c:539 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: 0033:0x7fa69e9874ca 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:00007fa69f877e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fa69f877ef0 RCX: 00007fa69e9874ca RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007fa69f877eb0 RBP: 00000000200000c0 R08: 00007fa69f877ef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 R13: 00007fa69f877eb0 R14: 00000000000059dc R15: 0000000020000040 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_get_scanned_nodes+0x1da7/0x1db0 fs/bcachefs/btree_node_scan.c:536 Code: 24 30 e8 7c 96 e2 fd 4c 89 fe 48 8d 94 24 60 03 00 00 e9 57 e8 ff ff e8 e7 64 a5 07 e8 22 2f 7c fd 90 0f 0b e8 1a 2f 7c fd 90 <0f> 0b 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000d48ed20 EFLAGS: 00010283 RAX: ffffffff842344c6 RBX: 00000000fffff75a RCX: 0000000000100000 RDX: ffffc9000e442000 RSI: 00000000000543f6 RDI: 00000000000543f7 RBP: ffffc9000d48f1c0 R08: ffffffff84233b03 R09: 1ffffffff2854930 R10: dffffc0000000000 R11: fffffbfff2854931 R12: ffffc9000d48f080 R13: 1ffff92001a91dd8 R14: 0000000000000000 R15: ffff888054080000 FS: 00007fa69f8786c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005623332700c8 CR3: 0000000043dba000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400