./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3603338546 <...> Warning: Permanently added '10.128.0.232' (ED25519) to the list of known hosts. execve("./syz-executor3603338546", ["./syz-executor3603338546"], 0x7ffe3950d3c0 /* 10 vars */) = 0 brk(NULL) = 0x55556f62d000 brk(0x55556f62dd00) = 0x55556f62dd00 arch_prctl(ARCH_SET_FS, 0x55556f62d380) = 0 set_tid_address(0x55556f62d650) = 5844 set_robust_list(0x55556f62d660, 24) = 0 rseq(0x55556f62dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3603338546", 4096) = 28 getrandom("\xc0\x2c\x18\x49\xb2\x1a\x44\x95", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556f62dd00 brk(0x55556f64ed00) = 0x55556f64ed00 brk(0x55556f64f000) = 0x55556f64f000 mprotect(0x7f7aad347000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5845 attached , child_tidptr=0x55556f62d650) = 5845 [pid 5845] set_robust_list(0x55556f62d660, 24) = 0 [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5845] setpgid(0, 0) = 0 [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5845] write(3, "1000", 4) = 4 [pid 5845] close(3) = 0 [pid 5845] write(1, "executing program\n", 18executing program ) = 18 [pid 5845] memfd_create("syzkaller", 0) = 3 [pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7aa4e87000 [pid 5845] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5845] munmap(0x7f7aa4e87000, 138412032) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5845] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5845] close(3) = 0 [pid 5845] close(4) = 0 [pid 5845] mkdir("./file1", 0777) = 0 [ 83.738242][ T5845] loop0: detected capacity change from 0 to 32768 [ 83.835694][ T5845] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 83.835705][ T5845] allowing incompatible features above 0.0: (unknown version) [ 83.835710][ T5845] features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes [ 83.835721][ T5845] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0 [ 83.835825][ T5845] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 83.835934][ T5845] bcachefs (loop0): Version upgrade required: [ 83.835934][ T5845] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 83.835934][ T5845] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.28: inode_has_case_insensitive [ 83.835934][ T5845] 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,check_rebalance_work,set_fs_needs_rebalance [ 83.846742][ T5845] bcachefs (loop0): invalid bkey in btree_node btree=inodes level=0: u64s 18 type inode_v3 0:4099:U32_MAX len 0 ver 0: (unpack error) [ 83.846759][ T5845] invalid variable length fields, deleting [pid 5845] mount("/dev/loop0", "./file1", "bcachefs", MS_POSIXACL|MS_I_VERSION, "18446744073709551615") = 0 [pid 5845] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5845] chdir("./file1") = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5845] ioctl(4, LOOP_CLR_FD) = 0 [ 83.846976][ T5845] bcachefs (loop0): invalid bkey in btree_node btree=inodes level=0: u64s 18 type inode_v3 0:4100:U32_MAX len 0 ver 0: (unpack error) [ 83.846987][ T5845] invalid variable length fields, deleting [ 83.852071][ T5845] bcachefs (loop0): invalid bkey in btree_node btree=lru level=0: u64s 5 type set 18446462598867058688:34:0 len 768 ver 0 [ 83.852086][ T5845] size != 0, deleting [ 83.853006][ T5845] bcachefs (loop0): error reading btree root btree=lru level=0: btree_node_read_error, fixing [pid 5845] close(4) = 0 [pid 5845] rename("./file2", "./file1") = 0 [pid 5845] openat(AT_FDCWD, NULL, O_WRONLY|O_CREAT|O_EXCL|O_NOCTTY|O_TRUNC|O_NOFOLLOW|O_NOATIME|O_CLOEXEC|FASYNC, 0405) = -1 EFAULT (Bad address) [pid 5845] memfd_create("syzkaller", 0) = 4 [pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7aa4e87000 [pid 5845] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5845] munmap(0x7f7aa4e87000, 138412032) = 0 [ 83.854308][ T5845] bcachefs (loop0): error reading btree root btree=freespace level=0: btree_node_read_error, fixing [ 83.857109][ T5845] bcachefs (loop0): check_topology... done [ 83.858757][ T5845] bcachefs (loop0): accounting_read... done [ 83.859482][ T5845] bcachefs (loop0): alloc_read... done [ 83.860218][ T5845] bcachefs (loop0): snapshots_read... done [ 83.860851][ T5845] bcachefs (loop0): check_allocations... [ 83.862719][ T5845] bcachefs (loop0): bucket 0:26 data type btree ptr gen 0 missing in alloc btree [pid 5845] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 5845] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 5845] ioctl(5, LOOP_CLR_FD) = 0 [pid 5845] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 5845] close(5) = 0 [pid 5845] close(4) = 0 [ 83.862732][ T5845] while marking 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, fixing [ 83.864301][ T5845] bcachefs (loop0): bucket 0:38 data type btree ptr gen 0 missing in alloc btree [ 83.864312][ T5845] while marking 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 [ 83.865354][ T5845] bcachefs (loop0): bucket 0:41 data type btree ptr gen 0 missing in alloc btree [ 83.865365][ T5845] while marking 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, fixing [ 83.866852][ T5845] bcachefs (loop0): bucket 0:35 data type btree ptr gen 0 missing in alloc btree [ 83.866863][ T5845] while marking 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 [ 83.868711][ T5845] bcachefs (loop0): bucket 0:1 gen 0 has wrong data_type: got free, should be sb, fixing [ 83.868810][ T5845] bcachefs (loop0): bucket 0:1 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing [ 83.869362][ T5845] bcachefs (loop0): bucket 0:2 gen 0 has wrong data_type: got free, should be sb, fixing [ 83.869440][ T5845] bcachefs (loop0): bucket 0:2 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing [ 83.869758][ T5845] bcachefs (loop0): bucket 0:3 gen 0 has wrong data_type: got free, should be sb, fixing [ 83.869836][ T5845] bcachefs (loop0): bucket 0:3 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing [ 83.869983][ T5845] bcachefs (loop0): bucket 0:4 gen 0 has wrong data_type: got free, should be sb, fixing [ 83.870061][ T5845] bcachefs (loop0): bucket 0:4 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing [ 83.870209][ T5845] bcachefs (loop0): bucket 0:5 gen 0 has wrong data_type: got free, should be sb, fixing [ 83.870287][ T5845] bcachefs (loop0): bucket 0:5 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing [ 83.870436][ T5845] bcachefs (loop0): bucket 0:6 gen 0 has wrong data_type: got free, should be sb, fixing [ 83.870512][ T5845] bcachefs (loop0): bucket 0:6 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing [ 83.870665][ T5845] bcachefs (loop0): bucket 0:7 gen 0 has wrong data_type: got free, should be sb, fixing [ 83.870743][ T5845] bcachefs (loop0): bucket 0:7 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing [ 83.870918][ T5845] bcachefs (loop0): bucket 0:8 gen 0 has wrong data_type: got free, should be sb, fixing [ 83.870993][ T5845] bcachefs (loop0): bucket 0:8 gen 0 data type sb has wrong dirty_sectors: got 0, should be 8, fixing [ 83.871140][ T5845] bcachefs (loop0): bucket 0:9 gen 0 has wrong data_type: got free, should be journal, fixing [ 83.871217][ T5845] bcachefs (loop0): bucket 0:9 gen 0 data type journal has wrong dirty_sectors: got 0, should be 256, fixing [ 83.871364][ T5845] bcachefs (loop0): bucket 0:10 gen 0 has wrong data_type: got free, should be journal, fixing [ 83.871442][ T5845] bcachefs (loop0): bucket 0:10 gen 0 data type journal has wrong dirty_sectors: got 0, should be 256, fixing [ 83.871645][ T5845] bcachefs (loop0): bucket 0:11 gen 0 has wrong data_type: got free, should be journal, fixing [ 83.871655][ T5845] Ratelimiting new instances of previous error [ 83.871752][ T5845] bcachefs (loop0): bucket 0:11 gen 0 data type journal has wrong dirty_sectors: got 0, should be 256, fixing [ 83.871762][ T5845] Ratelimiting new instances of previous error [ 83.882449][ T5845] done [ 83.884055][ T5845] bcachefs (loop0): going read-write [ 83.888322][ T5845] bcachefs (loop0): journal_replay... [ 83.902656][ T57] bcachefs (loop0): bucket incorrectly unset in freespace btree [ 83.902670][ T57] u64s 5 type deleted 0:36:0 len 0 ver 0, , continuing [ 83.905820][ T57] bcachefs (loop0): bucket incorrectly unset in freespace btree [ 83.905832][ T57] u64s 5 type deleted 0:40:0 len 0 ver 0, , continuing [ 83.908065][ T57] bcachefs (loop0): bucket incorrectly unset in freespace btree [ 83.908076][ T57] u64s 5 type deleted 0:43:0 len 0 ver 0, , continuing [ 83.908906][ T57] bcachefs (loop0): bucket incorrectly unset in freespace btree [ 83.908916][ T57] u64s 5 type deleted 0:33:0 len 0 ver 0, , continuing [ 83.910425][ T57] bcachefs (loop0): bucket incorrectly unset in freespace btree [ 83.910435][ T57] u64s 5 type deleted 0:39:0 len 0 ver 0, , continuing [ 83.912221][ T57] bcachefs (loop0): bucket incorrectly unset in freespace btree [ 83.912232][ T57] u64s 5 type deleted 0:29:0 len 0 ver 0, , continuing [ 83.923102][ T5133] bcachefs (loop0): bucket incorrectly unset in freespace btree [ 83.923114][ T5133] u64s 5 type deleted 0:48:0 len 0 ver 0, , continuing [ 83.929398][ T5845] done [ 83.929886][ T5845] bcachefs (loop0): check_alloc_info... [ 83.931645][ T5845] bcachefs (loop0): hole in alloc btree missing in freespace btree [ 83.931657][ T5845] device 0 buckets 25-26, fixing [ 83.932944][ T5845] bcachefs (loop0): bucket incorrectly unset in need_discard btree [ 83.932954][ T5845] u64s 13 type alloc_v4 0:28:0 len 0 ver 50331648: [ 83.932962][ T5845] gen 0 oldest_gen 0 data_type need_discard [ 83.932969][ T5845] journal_seq_nonempty 6 [ 83.932975][ T5845] journal_seq_empty 0 [ 83.932981][ T5845] need_discard 1 [ 83.932988][ T5845] need_inc_gen 1 [ 83.932994][ T5845] dirty_sectors 0 [ 83.933000][ T5845] stripe_sectors 0 [ 83.933007][ T5845] cached_sectors 0 [ 83.933013][ T5845] stripe 0 [ 83.933019][ T5845] stripe_redundancy 0 [ 83.933025][ T5845] io_time[READ] 1 [ 83.933031][ T5845] io_time[WRITE] 768 [ 83.933038][ T5845] fragmentation 0 [ 83.933044][ T5845] bp_start 8 [ 83.933050][ T5845] , fixing [ 83.933217][ T5845] bcachefs (loop0): hole in alloc btree missing in freespace btree [ 83.933226][ T5845] device 0 buckets 30-31, fixing [ 83.933563][ T5845] bcachefs (loop0): hole in alloc btree missing in freespace btree [ 83.933572][ T5845] device 0 buckets 44-48, fixing [ 83.933715][ T5845] bcachefs (loop0): hole in alloc btree missing in freespace btree [ 83.933724][ T5845] device 0 buckets 49-120, fixing [ 83.935136][ T5845] done [ 83.936590][ T5845] bcachefs (loop0): check_lrus... done [ 83.937104][ T5845] bcachefs (loop0): check_btree_backpointers... [ 83.938233][ T5845] bcachefs (loop0): backpointer for nonexistent alloc key: 0:35459249995810:0 [ 83.938246][ T5845] u64s 9 type backpointer 0:9295429630901616640:0 len 0 ver 0: bucket=0:35459249995810:0 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=4099:8:U32_MAX, fixing [ 83.938554][ T5845] done [ 83.940374][ T5845] bcachefs (loop0): check_backpointers_to_extents... done [ 83.943743][ T5845] bcachefs (loop0): check_extents_to_backpointers... [ 83.944775][ T5845] bcachefs (loop0): scanning for missing backpointers in 4/128 buckets [ 83.945183][ T5845] done [ 83.946227][ T5845] bcachefs (loop0): check_alloc_to_lru_refs... [ 83.947322][ T5845] bcachefs (loop0): missing fragmentation lru entry [ 83.947332][ T5845] u64s 12 type alloc_v4 0:34:0 len 0 ver 50331648: [ 83.947340][ T5845] gen 0 oldest_gen 0 data_type user [ 83.947347][ T5845] journal_seq_nonempty 5 [ 83.947353][ T5845] journal_seq_empty 134217728 [ 83.947360][ T5845] need_discard 1 [ 83.947366][ T5845] need_inc_gen 1 [ 83.947372][ T5845] dirty_sectors 16 [ 83.947378][ T5845] stripe_sectors 1802509 [ 83.947385][ T5845] cached_sectors 0 [ 83.947391][ T5845] stripe 0 [ 83.947397][ T5845] stripe_redundancy 0 [ 83.947404][ T5845] io_time[READ] 1 [ 83.947410][ T5845] io_time[WRITE] 512 [ 83.947417][ T5845] fragmentation 0 [ 83.947423][ T5845] bp_start 7 [ 83.947429][ T5845] , fixing [ 83.948200][ T5845] done [ 83.949336][ T5845] bcachefs (loop0): bucket_gens_init... done [ 83.951023][ T5845] bcachefs (loop0): check_snapshot_trees... done [ 83.951066][ T5845] bcachefs (loop0): check_snapshots... [ 83.951503][ T5845] bcachefs (loop0): snapshot points to missing/incorrect tree: [ 83.951514][ T5845] u64s 8 type snapshot 0:4294967295:0 len 0 ver 0: subvol parent 0 children 0 0 subvol 1 tree 0, fixing [ 83.957329][ T5845] done [ 83.958329][ T5845] bcachefs (loop0): check_subvols... done [ 83.958924][ T5845] bcachefs (loop0): check_subvol_children... done [ 83.958953][ T5845] bcachefs (loop0): delete_dead_snapshots... done [ 83.958977][ T5845] bcachefs (loop0): check_inodes... [ 83.959782][ T5845] bcachefs (loop0): inode points to missing dirent [ 83.959792][ T5845] inum: 4098:4294967295 [ 83.959798][ T5845] mode=40755 [ 83.959804][ T5845] flags=(15300000) [ 83.959810][ T5845] journal_seq=4 [ 83.959816][ T5845] hash_seed=ece93825deac2443 [ 83.959823][ T5845] hash_type=siphash [ 83.959829][ T5845] bi_size=0 [ 83.959835][ T5845] bi_sectors=0 [ 83.959841][ T5845] bi_version=0 [ 83.959847][ T5845] bi_atime=2770562249 [ 83.959853][ T5845] bi_ctime=2780562352 [ 83.959859][ T5845] bi_mtime=2780562352 [ 83.959865][ T5845] bi_otime=2770562249 [ 83.959871][ T5845] bi_uid=0 [ 83.959877][ T5845] bi_gid=0 [ 83.959882][ T5845] bi_nlink=0 [ 83.959888][ T5845] bi_generation=0 [ 83.959894][ T5845] bi_dev=0 [ 83.959900][ T5845] bi_data_checksum=0 [ 83.959906][ T5845] bi_compression=0 [ 83.959912][ T5845] bi_project=0 [ 83.959918][ T5845] bi_background_compression=0 [ 83.959925][ T5845] bi_data_replicas=0 [ 83.959931][ T5845] bi_promote_target=0 [ 83.959937][ T5845] bi_foreground_target=64 [ 83.959944][ T5845] bi_background_target=1 [ 83.959950][ T5845] bi_erasure_code=0 [ 83.959956][ T5845] bi_fields_set=0 [ 83.959962][ T5845] bi_dir=0 [ 83.959968][ T5845] bi_dir_offset=32 [ 83.959974][ T5845] bi_subvol=0 [ 83.959980][ T5845] bi_parent_subvol=0 [ 83.959986][ T5845] bi_nocow=0 [ 83.959992][ T5845] bi_depth=0 [ 83.959998][ T5845] bi_inodes_32bit=0 [ 83.960004][ T5845] bi_casefold=0, fixing [ 83.960549][ T5845] done [ 83.964222][ T5845] bcachefs (loop0): check_extents... [ 83.964993][ T5845] bcachefs (loop0): key in missing inode, found keys: [ 83.965004][ T5845] u64s 7 type extent 4099:8:U32_MAX len 8 ver 0: durability: 1 crc: c_size 8 size 8 offset 0 nonce 0 csum none 0:0 compress incompressible ptr: 0:34:0 gen 0 [ 83.965015][ T5845] , fixing [ 83.966822][ T5845] bcachefs (loop0): key in missing inode, found keys: [ 83.966832][ T5845] u64s 10 type inline_data 4100:8:U32_MAX len 8 ver 0: datalen 40: 2f746d702f73797a2d696d61676567656e3931343136303536352f66696c6530 [ 83.966842][ T5845] , fixing [ 83.967084][ T5845] done [ 83.967869][ T5845] bcachefs (loop0): check_indirect_extents... done [ 83.967902][ T5845] bcachefs (loop0): check_dirents... [ 83.969257][ T5845] bcachefs (loop0): directory with missing backpointer [ 83.969268][ T5845] u64s 7 type dirent 4096:189491840996961599:U32_MAX len 0 ver 0: file0 -> 4098 type dir [ 83.969277][ T5845] inum: 4098:4294967295 [ 83.969283][ T5845] mode=40755 [ 83.969289][ T5845] flags=(11300000) [ 83.969295][ T5845] journal_seq=24 [ 83.969301][ T5845] hash_seed=ece93825deac2443 [ 83.969307][ T5845] hash_type=siphash [ 83.969313][ T5845] bi_size=0 [ 83.969319][ T5845] bi_sectors=0 [ 83.969325][ T5845] bi_version=0 [ 83.969331][ T5845] bi_atime=2770562249 [ 83.969338][ T5845] bi_ctime=2780562352 [ 83.969344][ T5845] bi_mtime=2780562352 [ 83.969349][ T5845] bi_otime=2770562249 [ 83.969355][ T5845] bi_uid=0 [ 83.969361][ T5845] bi_gid=0 [ 83.969367][ T5845] bi_nlink=0 [ 83.969372][ T5845] bi_generation=0 [ 83.969378][ T5845] bi_dev=0 [ 83.969384][ T5845] bi_data_checksum=0 [ 83.969390][ T5845] bi_compression=0 [ 83.969396][ T5845] bi_project=0 [ 83.969402][ T5845] bi_background_compression=0 [ 83.969408][ T5845] bi_data_replicas=0 [ 83.969414][ T5845] bi_promote_target=0 [ 83.969420][ T5845] bi_foreground_target=64 [ 83.969426][ T5845] bi_background_target=1 [ 83.969433][ T5845] bi_erasure_code=0 [ 83.969438][ T5845] bi_fields_set=0 [ 83.969445][ T5845] bi_dir=0 [ 83.969450][ T5845] bi_dir_offset=0 [ 83.969457][ T5845] bi_subvol=0 [ 83.969463][ T5845] bi_parent_subvol=0 [ 83.969469][ T5845] bi_nocow=0 [ 83.969475][ T5845] bi_depth=0 [ 83.969480][ T5845] bi_inodes_32bit=0 [ 83.969486][ T5845] bi_casefold=0, fixing [ 83.970411][ T5845] bcachefs (loop0): hash table key at wrong offset: should be at 6053843396831044271 [ 83.970421][ T5845] u64s 7 type dirent 4096:4330382808765833931:U32_MAX len 0 ver 0: ÿÿÿÿ1 -> 536870912 type reg, fixing [ 83.971536][ T5845] bcachefs (loop0): dirent points to missing inode: [ 83.971545][ T5845] u64s 7 type dirent 4098:5675548428000973578:U32_MAX len 0 ver 0: file1 -> 4100 type lnk, fixing [ 83.971783][ T5845] bcachefs (loop0): dirent points to missing inode: [ 83.971791][ T5845] u64s 7 type dirent 4098:8977922886548783724:U32_MAX len 0 ver 0: file0 -> 4099 type reg, fixing [ 83.971906][ T5845] done [ 83.976065][ T5845] bcachefs (loop0): check_xattrs... done [ 83.976660][ T5845] bcachefs (loop0): check_root... done [ 83.976931][ T5845] bcachefs (loop0): check_unreachable_inodes... done [ 83.977098][ T5845] bcachefs (loop0): check_subvolume_structure... done [ 83.977135][ T5845] bcachefs (loop0): check_directory_structure... done [ 83.977171][ T5845] bcachefs (loop0): check_nlinks... [ 83.978169][ T5845] bcachefs (loop0): inode 536870914 type reg has wrong i_nlink (2780562353, should be 1), fixing [ 83.978401][ T5845] done [ 83.978932][ T5845] bcachefs (loop0): check_rebalance_work... done [ 83.979242][ T5845] bcachefs (loop0): resume_logged_ops... done [ 83.979273][ T5845] bcachefs (loop0): delete_dead_inodes... done [ 83.985063][ T5845] bcachefs (loop0): set_fs_needs_rebalance... done [ 84.000900][ T5845] bcachefs (loop0): done starting filesystem [pid 5845] truncate("./file1", 3072 [pid 5844] kill(-5845, SIGKILL) = 0 [pid 5844] kill(5845, SIGKILL) = 0 [pid 5844] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5844] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5844] getdents64(3, 0x55556f62e6f0 /* 2 entries */, 32768) = 48 [pid 5844] getdents64(3, 0x55556f62e6f0 /* 0 entries */, 32768) = 0 [pid 5844] close(3) = 0 [ 115.558112][ T5845] Allocator stuck? Waited for 30 seconds [ 115.558122][ T5845] Allocator debug: [ 115.558125][ T5845] capacity1536 [ 115.558129][ T5845] reserved 31232 [ 115.558132][ T5845] hidden 0 [ 115.558135][ T5845] btree 4096 [ 115.558139][ T5845] data 8 [ 115.558142][ T5845] cached 0 [ 115.558146][ T5845] reserved 0 [ 115.558149][ T5845] online_reserved 8 [ 115.558152][ T5845] nr_inodes 0 [ 115.558156][ T5845] [ 115.558158][ T5845] freelist_wait waiting [ 115.558162][ T5845] open buckets allocated22 [ 115.558165][ T5845] open buckets total 1024 [ 115.558169][ T5845] open_buckets_wait empty [ 115.558172][ T5845] open_buckets_btree 21 [ 115.558175][ T5845] open_buckets_user 0 [ 115.558178][ T5845] btree reserve cache 21 [ 115.558182][ T5845] [ 115.558185][ T5845] Dev 0: [ 115.558187][ T5845] buckets sectors fragmented [ 115.558191][ T5845] free 78 0 0 [ 115.558196][ T5845] sb 25 6152 248 [ 115.558200][ T5845] journal 8 2048 0 [ 115.558204][ T5845] btree 16 4096 0 [ 115.558208][ T5845] user 1 8 248 [ 115.558211][ T5845] cached 0 0 0 [ 115.558215][ T5845] parity 0 0 0 [ 115.558219][ T5845] stripe 0 0 0 [ 115.558223][ T5845] need_gc_gens 0 0 0 [ 115.558227][ T5845] need_discard 0 0 0 [ 115.558231][ T5845] unstriped 0 0 0 [ 115.558235][ T5845] capacity 128 [ 115.558239][ T5845] [ 115.558241][ T5845] reserves: [ 115.558244][ T5845] stripe 60 [ 115.558248][ T5845] normal 58 [ 115.558251][ T5845] copygc 56 [ 115.558254][ T5845] btree 28 [ 115.558258][ T5845] btree_copygc 0 [ 115.558261][ T5845] reclaim 0 [ 115.558264][ T5845] interior_updates 0 [ 115.558268][ T5845] [ 115.558270][ T5845] open buckets 21 [ 115.558274][ T5845] buckets to invalidate 0 [ 115.558277][ T5845] [ 115.558280][ T5845] Copygc debug: [ 115.558283][ T5845] running: 0 [ 115.558286][ T5845] copygc_wait:4240 [ 115.558289][ T5845] copygc_wait_at:3328 [ 115.558292][ T5845] Currently waiting for:200 KiB [ 115.558295][ T5845] Currently waiting since:256 KiB [ 115.558350][ T5845] Currently calculated wait: [ 115.558355][ T5845] loop0: 0 B [ 115.558358][ T5845] [<0>] bch2_copygc_thread+0xa1a/0xdf0 [ 115.558361][ T5845] [<0>] kthread+0x711/0x8a0 [ 115.558365][ T5845] [<0>] ret_from_fork+0x3fc/0x770 [ 115.558368][ T5845] [<0>] ret_from_fork_asm+0x1a/0x30 [ 115.558372][ T5845] [ 115.558375][ T5845] Journal debug: [ 115.558378][ T5845] flags: replay_done,running,may_skip_flush [ 115.558382][ T5845] dirty journal entries: 0/32768 [ 115.558385][ T5845] seq: 32 [ 115.558389][ T5845] seq_ondisk: 32 [ 115.558392][ T5845] last_seq: 33 [ 115.558395][ T5845] last_seq_ondisk: 32 [ 115.558399][ T5845] flushed_seq_ondisk: 32 [ 115.558403][ T5845] watermark: stripe [ 115.558406][ T5845] each entry reserved: 321 [ 115.558409][ T5845] nr flush writes: 18 [ 115.558413][ T5845] nr noflush writes: 4 [ 115.558416][ T5845] average write size: 2.23 KiB [ 115.558419][ T5845] free buf: 65536 [ 115.558423][ T5845] nr direct reclaim: 0 [ 115.558426][ T5845] nr background reclaim: 6 [ 115.558430][ T5845] reclaim kicked: 0 [ 115.558433][ T5845] reclaim runs in: 0 ms [ 115.558436][ T5845] blocked: 0 [ 115.558440][ T5845] current entry sectors: 256 [ 115.558443][ T5845] current entry error: (No error) [ 115.558446][ T5845] current entry: closed [ 115.558450][ T5845] unwritten entries: [ 115.558453][ T5845] last buf closed [ 115.558456][ T5845] space: [ 115.558459][ T5845] discarded 256:1536 [ 115.558463][ T5845] clean ondisk 256:1536 [ 115.558466][ T5845] clean 256:1536 [ 115.558469][ T5845] total 256:2048 [ 115.558473][ T5845] dev 0: [ 115.558476][ T5845] durability 1: [ 115.558479][ T5845] nr 8 [ 115.558482][ T5845] bucket size 256 [ 115.558486][ T5845] available 6:64 [ 115.558489][ T5845] discard_idx 0 [ 115.558492][ T5845] dirty_ondisk 0 (seq 32) [ 115.558496][ T5845] dirty_idx 0 (seq 32) [ 115.558499][ T5845] cur_idx 0 (seq 32) [ 115.558503][ T5845] replicas want 1 need 1 [ 286.428266][ T38] INFO: tas[ 286.428266][ T38] INFO: task syz-executor360:5845 blocked for more than 143 seconds. [ 286.428307][ T38] Tainted: G W 6.17.0-rc1-syzkaller-00211-g90d970cade8e #0 [ 286.428314][ T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.428321][ T38] task:syz-executor360 state:D stack:15624 pid:5845 tgid:5845 ppid:5844 task_flags:0x440140 flags:0x00004006 [ 286.428356][ T38] Call Trace: [ 286.428361][ T38] [ 286.428369][ T38] __schedule+0x16f3/0x4c20 [ 286.428392][ T38] ? blk_mq_flush_plug_list+0x41f/0x550 [ 286.428411][ T38] ? __pfx___schedule+0x10/0x10 [ 286.428422][ T38] ? schedule+0x91/0x360 [ 286.428431][ T38] ? rcu_is_watching+0x15/0xb0 [ 286.428445][ T38] ? lock_release+0x4b/0x3e0 [ 286.428457][ T38] ? bch2_print_allocator_stuck+0x12a/0x640 [ 286.428468][ T38] schedule+0x165/0x360 [ 286.428477][ T38] ? __closure_sync+0x113/0x220 [ 286.428487][ T38] __closure_sync+0x163/0x220 [ 286.428498][ T38] ? __pfx___closure_sync+0x10/0x10 [ 286.428509][ T38] ? __bch2_wait_on_allocator+0x1c7/0x240 [ 286.428518][ T38] __bch2_write+0x3204/0x3920 [ 286.428533][ T38] ? filemap_get_folios_tag+0xed/0x630 [ 286.428542][ T38] ? rcu_is_watching+0x15/0xb0 [ 286.428559][ T38] ? __pfx___bch2_write+0x10/0x10 [ 286.428571][ T38] ? enumerated_ref_tryget+0x105/0x170 [ 286.428584][ T38] ? bch2_write+0x719/0x10f0 [ 286.428596][ T38] ? write_cache_pages+0xc1/0x100 [ 286.428607][ T38] bch2_writepages+0x211/0x2d0 [ 286.428619][ T38] ? __pfx_bch2_writepages+0x10/0x10 [ 286.428630][ T38] do_writepages+0x32b/0x550 [ 286.428640][ T38] ? __pfx_rt_mutex_slowunlock+0x10/0x10 [ 286.428650][ T38] ? lock_release+0x4b/0x3e0 [ 286.428660][ T38] ? inode_to_bdi+0x69/0xf0 [ 286.428671][ T38] ? wbc_attach_and_unlock_inode+0xc5/0x5d0 [ 286.428686][ T38] filemap_write_and_wait_range+0x222/0x320 [ 286.428700][ T38] ? __pfx_filemap_write_and_wait_range+0x10/0x10 [ 286.428711][ T38] ? rcu_is_watching+0x15/0xb0 [ 286.428731][ T38] ? __pfx_unmap_mapping_range+0x10/0x10 [ 286.428742][ T38] ? __bch2_inode_peek+0x11f/0x370 [ 286.428753][ T38] ? truncate_setsize+0xcf/0xf0 [ 286.428765][ T38] bchfs_truncate+0x6a3/0xc20 [ 286.428786][ T38] ? __pfx_bchfs_truncate+0x10/0x10 [ 286.428802][ T38] ? __bch2_trans_get+0x9c1/0xd80 [ 286.428817][ T38] ? __pfx_bch2_subvol_is_ro+0x10/0x10 [ 286.428826][ T38] ? setattr_prepare+0x1e7/0xac0 [ 286.428837][ T38] ? evm_inode_setattr+0x1b6/0x7d0 [ 286.428848][ T38] ? __pfx_current_time+0x10/0x10 [ 286.428858][ T38] ? bch2_setattr+0x1a7/0x220 [ 286.428870][ T38] ? __pfx_bch2_setattr+0x10/0x10 [ 286.428883][ T38] notify_change+0xb31/0xe60 [ 286.428898][ T38] do_truncate+0x1a4/0x220 [ 286.428910][ T38] ? __pfx_do_truncate+0x10/0x10 [ 286.428922][ T38] ? mnt_get_write_access+0x2bb/0x340 [ 286.428933][ T38] vfs_truncate+0x493/0x520 [ 286.428945][ T38] ? __pfx_vfs_truncate+0x10/0x10 [ 286.428957][ T38] do_sys_truncate+0xdb/0x190 [ 286.428968][ T38] ? __pfx_do_sys_truncate+0x10/0x10 [ 286.428979][ T38] ? rcu_is_watching+0x15/0xb0 [ 286.428993][ T38] __x64_sys_truncate+0x5b/0x70 [ 286.429004][ T38] do_syscall_64+0xfa/0x3b0 [ 286.429023][ T38] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.429032][ T38] ? clear_bhb_loop+0x60/0xb0 [ 286.429043][ T38] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.429052][ T38] RIP: 0033:0x7f7aad2ce099 [ 286.429063][ T38] RSP: 002b:00007ffc29f8ed68 EFLAGS: 00000246 ORIG_RAX: 000000000000004c [ 286.429074][ T38] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007f7aad2ce099 [ 286.429081][ T38] RDX: 00007f7aad2cd2f0 RSI: 0000000000000c00 RDI: 0000200000000080 [ 286.429091][ T38] RBP: 0031656c69662f2e R08: 00000000000006f9 R09: 0000200000000500 [ 286.429098][ T38] R10: 00000000000006fd R11: 0000000000000246 R12: 00007f7aad3170a2 [ 286.429104][ T38] R13: 0000200000000100 R14: 6569727261626f6e R15: 00007f7aad31703b [ 286.429114][ T38] [ 286.429241][ T38] INFO: lockdep is turned off. [ 286.429252][ T38] NMI backtrace for cpu 0 [ 286.429266][ T38] CPU: 0 UID: 0 PID: 38 Comm: khungtaskd Tainted: G W 6.17.0-rc1-syzkaller-00211-g90d970cade8e #0 PREEMPT_{RT,(full)} [ 286.429279][ T38] Tainted: [W]=WARN [ 286.429282][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 286.429287][ T38] Call Trace: [ 286.429291][ T38] [ 286.429295][ T38] dump_stack_lvl+0x189/0x250 [ 286.429310][ T38] ? __pfx_dump_stack_lvl+0x10/0x10 [ 286.429322][ T38] ? __pfx__printk+0x10/0x10 [ 286.429334][ T38] nmi_cpu_backtrace+0x39e/0x3d0 [ 286.429344][ T38] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 286.429353][ T38] ? __pfx__printk+0x10/0x10 [ 286.429362][ T38] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 286.429374][ T38] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 286.429384][ T38] watchdog+0xf93/0xfe0 [ 286.429397][ T38] ? watchdog+0x1de/0xfe0 [ 286.429408][ T38] kthread+0x711/0x8a0 [ 286.429422][ T38] ? __pfx_watchdog+0x10/0x10 [ 286.429432][ T38] ? __pfx_kthread+0x10/0x10 [ 286.429445][ T38] ? __pfx_kthread+0x10/0x10 [ 286.429456][ T38] ret_from_fork+0x3fc/0x770 [ 286.429468][ T38] ? __pfx_ret_from_fork+0x10/0x10 [ 286.429480][ T38] ? __switch_to_asm+0x39/0x70 [ 286.429488][ T38] ? __switch_to_asm+0x33/0x70 [ 286.429495][ T38] ? __pfx_kthread+0x10/0x10 [ 286.429507][ T38] ret_from_fork_asm+0x1a/0x30 [ 286.429518][ T38] [ 286.429522][ T38] Sending NMI from CPU 0 to CPUs 1: [ 286.429572][ C1] NMI backtrace for cpu 1 [ 286.429588][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G W 6.17.0-rc1-syzkaller-00211-g90d970cade8e #0 PREEMPT_{RT,(full)} [ 286.429608][ C1] Tainted: [W]=WARN [ 286.429613][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 286.429621][ C1] RIP: 0010:pv_native_safe_halt+0x13/0x20 [ 286.429640][ C1] Code: 53 b2 03 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 93 23 12 00 f3 0f 1e fa fb f4 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 [ 286.429651][ C1] RSP: 0018:ffffc900001d7de0 EFLAGS: 000002c6 [ 286.429664][ C1] RAX: 429dd02d43515e00 RBX: ffffffff81954e58 RCX: 429dd02d43515e00 [ 286.429675][ C1] RDX: 0000000000000001 RSI: ffffffff8b620b60 RDI: ffffffff81954e58 [ 286.429685][ C1] RBP: ffffc900001d7f20 R08: ffff8880b893341b R09: 1ffff11017126683 [ 286.429696][ C1] R10: dffffc0000000000 R11: ffffed1017126684 R12: ffffffff8f1d3c30 [ 286.429707][ C1] R13: 0000000000000001 R14: 0000000000000001 R15: 1ffff110038d2b28 [ 286.429717][ C1] FS: 0000000000000000(0000) GS:ffff8881269c5000(0000) knlGS:0000000000000000 [ 286.429729][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.429739][ C1] CR2: 0000564eb8c37168 CR3: 000000000d7a6000 CR4: 00000000003526f0 [ 286.429753][ C1] Call Trace: [ 286.429759][ C1] [ 286.429774][ C1] default_idle+0x13/0x20 [ 286.429792][ C1] default_idle_call+0x74/0xb0 [ 286.429809][ C1] do_idle+0x1e8/0x510 [ 286.429824][ C1] ? __pfx_do_idle+0x10/0x10 [ 286.429836][ C1] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 286.429852][ C1] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.429868][ C1] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 286.429884][ C1] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 286.429903][ C1] cpu_startup_entry+0x44/0x60 [ 286.429925][ C1] start_secondary+0x101/0x110 [ 286.429940][ C1] common_startup_64+0x13e/0x147 [ 286.429959][ C1] [ 286.431184][ T38] Kernel panic - not syncing: hung_task: blocked tasks [ 286.431201][ T38] CPU: 0 UID: 0 PID: 38 Comm: khungtaskd Tainted: G W 6.17.0-rc1-syzkaller-00211-g90d970cade8e #0 PREEMPT_{RT,(full)} [ 286.431225][ T38] Tainted: [W]=WARN [ 286.431231][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 286.431240][ T38] Call Trace: [ 286.431246][ T38] [ 286.431253][ T38] dump_stack_lvl+0x99/0x250 [ 286.431279][ T38] ? __asan_memcpy+0x40/0x70 [ 286.431296][ T38] ? __pfx_dump_stack_lvl+0x10/0x10 [ 286.431318][ T38] ? __pfx__printk+0x10/0x10 [ 286.431339][ T38] vpanic+0x281/0x750 [ 286.431362][ T38] ? __pfx_vpanic+0x10/0x10 [ 286.431384][ T38] ? preempt_schedule+0xae/0xc0 [ 286.431404][ T38] ? preempt_schedule_common+0x83/0xd0 [ 286.431424][ T38] panic+0xb9/0xc0 [ 286.431445][ T38] ? __pfx_panic+0x10/0x10 [ 286.431467][ T38] ? preempt_schedule_thunk+0x16/0x30 [ 286.431488][ T38] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300 [ 286.431506][ T38] watchdog+0xfd2/0xfe0 [ 286.431527][ T38] ? watchdog+0x1de/0xfe0 [ 286.431548][ T38] kthread+0x711/0x8a0 [ 286.431572][ T38] ? __pfx_watchdog+0x10/0x10 [ 286.431591][ T38] ? __pfx_kthread+0x10/0x10 [ 286.431614][ T38] ? __pfx_kthread+0x10/0x10 [ 286.431636][ T38] ret_from_fork+0x3fc/0x770 [ 286.431658][ T38] ? __pfx_ret_from_fork+0x10/0x10 [ 286.431679][ T38] ? __switch_to_asm+0x39/0x70 [ 286.431694][ T38] ? __switch_to_asm+0x33/0x70 [ 286.431709][ T38] ? __pfx_kthread+0x10/0x10 [ 286.431731][ T38] ret_from_fork_asm+0x1a/0x30 [ 286.431753][ T38] [ 286.431996][ T38] Kernel Offset: disabled