bcachefs (loop0): btree node read error at btree deleted_inodes level 0/0 u64s 11 type btree_ptr_v2 U64_MAX:U64_MAX:4261412863 len 0 ver 0: seq 1db8f60c84bb244c written 8 min_key POS_MIN durability: 1 ptr: 0:42:0 gen 0 loop0 node offset 0/8 bset u64s 0: incorrect max key SPOS_MAX loop0 btree validate error flagging btree deleted_inodes lost data running recovery pass check_topology (2), currently at recovery_pass_empty (0) running recovery pass check_lrus (14), currently at recovery_pass_empty (0) running recovery pass check_backpointers_to_extents (16), currently at recovery_pass_empty (0) running recovery pass check_topology (2), currently at recovery_pass_empty (0) running recovery pass scan_for_btree_nodes (1), currently at recovery_pass_empty (0) ret btree_node_read_err_bad_node bcachefs (loop0): error reading btree root btree=deleted_inodes level=0: btree_node_read_error, fixing bcachefs (loop0): check_topology... bcachefs (loop0): btree root deleted_inodes unreadable, must recover from scan bcachefs (loop0): running recovery pass scan_for_btree_nodes (1), currently at check_topology (2) - rewinding bcachefs (loop0): bch2_check_root(): error restart_recovery bcachefs (loop0): scan_for_btree_nodes... bcachefs (loop0): btree node scan found 1 nodes after overwrites done bcachefs (loop0): check_topology... bcachefs (loop0): btree root deleted_inodes unreadable, must recover from scan bcachefs (loop0): no nodes found for btree deleted_inodes, continuing done bcachefs (loop0): accounting_read... done bcachefs (loop0): alloc_read... done bcachefs (loop0): snapshots_read... done bcachefs (loop0): check_allocations... bcachefs (loop0): bucket 0:14 gen 0 has wrong data_type: got free, should be journal, fixing bcachefs (loop0): bucket 0:14 gen 0 data type journal has wrong dirty_sectors: got 0, should be 256, fixing bcachefs (loop0): bucket 0:29 gen 0 has wrong data_type: got btree, should be need_discard, fixing bcachefs (loop0): bucket 0:29 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing bcachefs (loop0): bucket 0:32 gen 0 has wrong data_type: got btree, should be need_discard, fixing bcachefs (loop0): bucket 0:32 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing bcachefs (loop0): bucket 0:42 gen 0 has wrong data_type: got btree, should be need_discard, fixing bcachefs (loop0): bucket 0:42 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing done bcachefs (loop0): going read-write bcachefs (loop0): journal_replay... done bcachefs (loop0): check_lrus... done bcachefs (loop0): check_backpointers_to_extents... done bcachefs (loop0): check_extents_to_backpointers... bcachefs (loop0): scanning for missing backpointers in 4/128 buckets done bcachefs (loop0): check_subvols... bcachefs (loop0): running recovery pass reconstruct_snapshots (21), currently at check_subvols (24) - rewinding bcachefs (loop0): bch2_check_subvols(): error restart_recovery bcachefs (loop0): reconstruct_snapshots... bcachefs (loop0): snapshot node 4294905343 from tree 4294905343 missing, recreating ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5360 at fs/bcachefs/btree_iter.c:3194 __bch2_trans_kmalloc+0x50f/0x9d0 fs/bcachefs/btree_iter.c:3194 Modules linked in: CPU: 0 UID: 0 PID: 5360 Comm: syz.0.0 Not tainted 6.16.0-syzkaller-11852-g479058002c32 #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_trans_kmalloc+0x50f/0x9d0 fs/bcachefs/btree_iter.c:3194 Code: 00 28 00 00 e8 d2 5b 35 00 48 c7 c0 75 f7 ff ff 48 83 c4 48 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 22 a5 95 fd 90 <0f> 0b 90 e9 d3 fb ff ff e8 14 a5 95 fd 90 0f 0b 90 e9 dc fd ff ff RSP: 0018:ffffc9000fd0e290 EFLAGS: 00010293 RAX: ffffffff842a163e RBX: ffff8880557d8000 RCX: ffff888000b88000 RDX: 0000000000000000 RSI: 0000000000020000 RDI: 0000000000010000 RBP: 0000000000020000 R08: ffffc9000fd0e690 R09: 0000000000000001 R10: ffffc9000fd0e5a0 R11: fffff52001fa1c81 R12: dffffc0000000000 R13: ffff8880557d8030 R14: 1ffff1100aafb000 R15: 0000000000000011 FS: 00007f6fc23326c0(0000) GS:ffff88808d218000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f644bf909c0 CR3: 0000000042dd9000 CR4: 0000000000352ef0 Call Trace: bch2_trans_kmalloc_nomemzero_ip fs/bcachefs/btree_iter.h:586 [inline] bch2_trans_kmalloc_nomemzero fs/bcachefs/btree_iter.h:621 [inline] bch2_alloc_sectors_start_trans+0x1d59/0x1e80 fs/bcachefs/alloc_foreground.c:1251 __bch2_btree_node_alloc fs/bcachefs/btree_update_interior.c:320 [inline] bch2_btree_reserve_get+0x641/0x1810 fs/bcachefs/btree_update_interior.c:534 bch2_btree_update_start+0x18ff/0x1de0 fs/bcachefs/btree_update_interior.c:1289 bch2_btree_split_leaf+0x14b/0x8e0 fs/bcachefs/btree_update_interior.c:1921 bch2_trans_commit_error+0x1b7/0x1130 fs/bcachefs/btree_trans_commit.c:914 __bch2_trans_commit+0x1bb5/0x8870 fs/bcachefs/btree_trans_commit.c:1104 bch2_trans_commit fs/bcachefs/btree_update.h:241 [inline] bch2_reconstruct_snapshots+0x1ae6/0x2170 fs/bcachefs/snapshot.c:1017 bch2_run_recovery_pass fs/bcachefs/recovery_passes.c:484 [inline] __bch2_run_recovery_passes+0x3ba/0x1060 fs/bcachefs/recovery_passes.c:539 bch2_run_recovery_passes+0x184/0x210 fs/bcachefs/recovery_passes.c:610 bch2_fs_recovery+0x2690/0x3a50 fs/bcachefs/recovery.c:1016 bch2_fs_start+0xaaf/0xda0 fs/bcachefs/super.c:1213 bch2_fs_get_tree+0xb39/0x1520 fs/bcachefs/fs.c:2488 vfs_get_tree+0x92/0x2b0 fs/super.c:1815 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3805 do_mount fs/namespace.c:4133 [inline] __do_sys_mount fs/namespace.c:4344 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4321 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6fc159038a 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:00007f6fc2331e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f6fc2331ef0 RCX: 00007f6fc159038a RDX: 0000200000000300 RSI: 0000200000000340 RDI: 00007f6fc2331eb0 RBP: 0000200000000300 R08: 00007f6fc2331ef0 R09: 0000000000000002 R10: 0000000000000002 R11: 0000000000000246 R12: 0000200000000340 R13: 00007f6fc2331eb0 R14: 0000000000005956 R15: 0000200000000000