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): flagging btree xattrs lost data error reading btree root xattrs l=0: btree_node_read_error, fixing bcachefs (loop0): will run btree node scan invalid bkey u64s 12 type alloc_v4 0:28:0 len 0 ver 0: gen 0 oldest_gen 0 data_type btree journal_seq 6 need_discard 1 need_inc_gen 1 dirty_sectors 0 stripe_sectors 0 cached_sectors 0 stripe 0 stripe_redundancy 0 io_time[READ] 1 io_time[WRITE] 768 fragmentation 0 bp_start 8 invalid data type (got 3 should be 9): delete?, fixing invalid btree root subvolumes, fixing bcachefs (loop0): flagging btree subvolumes lost data invalid bkey u64s 5 type set 0:37:0 len 4294964982 ver 0 size greater than offset (4294964982 > 37): delete?, fixing bcachefs (loop0): flagging btree freespace lost data error reading btree root freespace l=0: btree_node_read_error, fixing bcachefs (loop0): flagging btree backpointers lost data error reading btree root backpointers 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=1 journal_seq=5 cookie=c6c25c03258c59c5 POS_MIN-SPOS_MAX ptr: 0:27:0 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=4 cookie=9aa2895aefce4bdf POS_MIN-SPOS_MAX ptr: 0:41:0 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 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 no nodes found for btree xattrs, continuing bcachefs (loop0): btree root subvolumes unreadable, must recover from scan bcachefs (loop0): bch2_get_scanned_nodes(): recovering subvolumes 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 c0bef60d07ceb940 written 16 min_key POS_MIN durability: 1 ptr: 0:35:0 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/sb-members.c:453! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5106 Comm: syz.0.0 Not tainted 6.12.0-rc3-syzkaller-00420-g715ca9dd687f #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_dev_btree_bitmap_mark fs/bcachefs/sb-members.c:453 [inline] RIP: 0010:bch2_dev_btree_bitmap_mark+0xfd2/0xff0 fs/bcachefs/sb-members.c:473 Code: b3 f1 ff ff e8 3f 88 4c fd 90 0f 0b e8 37 88 4c fd 90 0f 0b e8 2f 88 4c fd 90 0f 0b e8 27 88 4c fd 90 0f 0b e8 1f 88 4c fd 90 <0f> 0b e8 17 88 4c fd 90 0f 0b e8 ef 26 7e 07 66 2e 0f 1f 84 00 00 RSP: 0018:ffffc9000b2b65a0 EFLAGS: 00010246 RAX: ffffffff84485fe1 RBX: 00000000ffffffc8 RCX: 0000000000040000 RDX: ffffc9000b60a000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc9000b2b67b0 R08: ffffffff84485c61 R09: 0000000000000000 R10: 0000042098000000 R11: 0000000000000000 R12: 000000000000003f R13: 0000042098000000 R14: ffff88803fad61d0 R15: 000000000000003f FS: 00007f348577c6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005596854cc008 CR3: 000000001f776000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_gc_mark_key+0xc9b/0x10e0 fs/bcachefs/btree_gc.c:622 bch2_gc_btree fs/bcachefs/btree_gc.c:698 [inline] bch2_gc_btrees fs/bcachefs/btree_gc.c:729 [inline] bch2_check_allocations+0x22e8/0x6e80 fs/bcachefs/btree_gc.c:1123 bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:185 bch2_run_recovery_passes+0x387/0x870 fs/bcachefs/recovery_passes.c:232 bch2_fs_recovery+0x25cc/0x39c0 fs/bcachefs/recovery.c:862 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1036 bch2_fs_get_tree+0xd68/0x1710 fs/bcachefs/fs.c:2174 vfs_get_tree+0x90/0x2b0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4055 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4032 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: 0033:0x7f348497f79a 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:00007f348577be68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f348577bef0 RCX: 00007f348497f79a RDX: 00000000200058c0 RSI: 0000000020000000 RDI: 00007f348577beb0 RBP: 00000000200058c0 R08: 00007f348577bef0 R09: 0000000000010440 R10: 0000000000010440 R11: 0000000000000246 R12: 0000000020000000 R13: 00007f348577beb0 R14: 00000000000058fd R15: 00000000200000c0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__bch2_dev_btree_bitmap_mark fs/bcachefs/sb-members.c:453 [inline] RIP: 0010:bch2_dev_btree_bitmap_mark+0xfd2/0xff0 fs/bcachefs/sb-members.c:473 Code: b3 f1 ff ff e8 3f 88 4c fd 90 0f 0b e8 37 88 4c fd 90 0f 0b e8 2f 88 4c fd 90 0f 0b e8 27 88 4c fd 90 0f 0b e8 1f 88 4c fd 90 <0f> 0b e8 17 88 4c fd 90 0f 0b e8 ef 26 7e 07 66 2e 0f 1f 84 00 00 RSP: 0018:ffffc9000b2b65a0 EFLAGS: 00010246 RAX: ffffffff84485fe1 RBX: 00000000ffffffc8 RCX: 0000000000040000 RDX: ffffc9000b60a000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc9000b2b67b0 R08: ffffffff84485c61 R09: 0000000000000000 R10: 0000042098000000 R11: 0000000000000000 R12: 000000000000003f R13: 0000042098000000 R14: ffff88803fad61d0 R15: 000000000000003f FS: 00007f348577c6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005596854cc008 CR3: 000000001f776000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400