./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4251979865 <...> Warning: Permanently added '10.128.10.30' (ED25519) to the list of known hosts. execve("./syz-executor4251979865", ["./syz-executor4251979865"], 0x7ffc03b8d8d0 /* 10 vars */) = 0 brk(NULL) = 0x555590b63000 brk(0x555590b63d00) = 0x555590b63d00 arch_prctl(ARCH_SET_FS, 0x555590b63380) = 0 set_tid_address(0x555590b63650) = 5828 set_robust_list(0x555590b63660, 24) = 0 rseq(0x555590b63ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4251979865", 4096) = 28 getrandom("\x5e\xbe\x89\x76\x8f\x44\x7b\x64", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555590b63d00 brk(0x555590b84d00) = 0x555590b84d00 brk(0x555590b85000) = 0x555590b85000 mprotect(0x7f3bb349d000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 mkdir("./syzkaller.wGqByT", 0700) = 0 chmod("./syzkaller.wGqByT", 0777) = 0 chdir("./syzkaller.wGqByT") = 0 mkdir("./0", 0777) = 0 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 5829 attached [pid 5829] set_robust_list(0x555590b63660, 24 [pid 5828] <... clone resumed>, child_tidptr=0x555590b63650) = 5829 [pid 5829] <... set_robust_list resumed>) = 0 [pid 5829] chdir("./0") = 0 [pid 5829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5829] setpgid(0, 0) = 0 [pid 5829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5829] write(3, "1000", 4) = 4 [pid 5829] close(3) = 0 [pid 5829] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5829] write(1, "executing program\n", 18executing program ) = 18 [pid 5829] memfd_create("syzkaller", 0) = 3 [pid 5829] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3baae00000 [pid 5829] 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 5829] munmap(0x7f3baae00000, 138412032) = 0 [pid 5829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5829] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5829] close(3) = 0 [pid 5829] close(4) = 0 [pid 5829] mkdir("./file0", 0777) = 0 [ 79.045796][ T5829] loop0: detected capacity change from 0 to 32768 [ 79.121913][ T5829] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 79.137714][ T5829] bcachefs (loop0): recovering from clean shutdown, journal seq 13 [ 79.157868][ T5829] bcachefs (loop0): accounting_read... done [ 79.164602][ T5829] bcachefs (loop0): alloc_read... done [pid 5829] mount("/dev/loop0", "./file0", "bcachefs", 0, "\x10\xf7\xe7\xab\x27\x5e\x7b\x9e\xc1\x8a\x06\x63\x35\x54\xe2\xf6\xfa\xd2\xf9\xfb\xc1\x7a\x1b\x2f\xed\xc7\xf5\x95") = 0 [pid 5829] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5829] chdir("./file0") = 0 [pid 5829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5829] ioctl(4, LOOP_CLR_FD) = 0 [pid 5829] close(4) = 0 [pid 5829] exit_group(0) = ? [pid 5829] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5829, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=30 /* 0.30 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x555590b646f0 /* 4 entries */, 32768) = 112 umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 79.170141][ T5829] bcachefs (loop0): stripes_read... done [ 79.175952][ T5829] bcachefs (loop0): snapshots_read... done [ 79.184259][ T5829] bcachefs (loop0): journal_replay... done [ 79.190116][ T5829] bcachefs (loop0): resume_logged_ops... done [ 79.196472][ T5829] bcachefs (loop0): delete_dead_inodes... done [ 79.204848][ T5829] bcachefs (loop0): going read-write [ 79.215161][ T5829] bcachefs (loop0): done starting filesystem unlink("./0/binderfs") = 0 [ 79.255400][ T5828] bcachefs (loop0): shutting down [ 79.260532][ T5828] bcachefs (loop0): going read-only [ 79.266751][ T5828] bcachefs (loop0): finished waiting for writes to stop [ 86.283184][ T25] cfg80211: failed to load regulatory.db [ 109.331736][ T5839] Allocator stuck? Waited for 30 seconds [ 109.331754][ T5839] Allocator debug: [ 109.331763][ T5839] capacity1536 [ 109.331773][ T5839] reserved 31232 [ 109.331783][ T5839] hidden 0 [ 109.331792][ T5839] btree 0 [ 109.331802][ T5839] data 0 [ 109.331811][ T5839] cached 0 [ 109.331821][ T5839] reserved 0 [ 109.331831][ T5839] online_reserved 24 [ 109.331842][ T5839] nr_inodes 0 [ 109.331852][ T5839] [ 109.331860][ T5839] freelist_wait waiting [ 109.331870][ T5839] open buckets allocated1 [ 109.331880][ T5839] open buckets total 1024 [ 109.331890][ T5839] open_buckets_wait empty [ 109.331900][ T5839] open_buckets_btree 0 [ 109.331909][ T5839] open_buckets_user 0 [ 109.331919][ T5839] btree reserve cache 0 [ 109.331928][ T5839] [ 109.331937][ T5839] Dev 0: [ 109.331946][ T5839] buckets sectors fragmented [ 109.331957][ T5839] free 0 0 0 [ 109.331969][ T5839] sb 0 0 0 [ 109.331980][ T5839] journal 0 0 0 [ 109.331992][ T5839] btree 0 0 0 [ 109.332004][ T5839] user 0 0 0 [ 109.332015][ T5839] cached 0 0 0 [ 109.332027][ T5839] parity 0 0 0 [ 109.332038][ T5839] stripe 0 0 0 [ 109.332050][ T5839] need_gc_gens 0 0 0 [ 109.332061][ T5839] need_discard 0 0 0 [ 109.332073][ T5839] unstriped 0 0 0 [ 109.332085][ T5839] capacity 128 [ 109.332094][ T5839] [ 109.332103][ T5839] reserves: [ 109.332112][ T5839] stripe 60 [ 109.332122][ T5839] normal 58 [ 109.332131][ T5839] copygc 56 [ 109.332141][ T5839] btree 28 [ 109.332151][ T5839] btree_copygc 0 [ 109.332161][ T5839] reclaim 0 [ 109.332171][ T5839] interior_updates 0 [ 109.332181][ T5839] [ 109.332189][ T5839] open buckets 0 [ 109.332199][ T5839] buckets to invalidate 0 [ 109.332208][ T5839] [ 109.332216][ T5839] Copygc debug: [ 109.332225][ T5839] running: 1 [ 109.332248][ T5839] copygc_wait:0 [ 109.332257][ T5839] copygc_wait_at:0 [ 109.332266][ T5839] Currently waiting for:0 B [ 109.332276][ T5839] Currently waiting since:640 KiB [ 109.332285][ T5839] Currently calculated wait:0 B [ 109.332295][ T5839] [ 109.332303][ T5839] Journal debug: [ 109.332312][ T5839] flags: replay_done,running,may_skip_flush,need_flush_write [ 109.332324][ T5839] dirty journal entries: 0/32768 [ 109.332334][ T5839] seq: 13 [ 109.332344][ T5839] seq_ondisk: 13 [ 109.332353][ T5839] last_seq: 14 [ 109.332363][ T5839] last_seq_ondisk: 14 [ 109.332372][ T5839] flushed_seq_ondisk: 13 [ 109.332382][ T5839] watermark: stripe [ 109.332392][ T5839] each entry reserved: 321 [ 109.332401][ T5839] nr flush writes: 0 [ 109.332411][ T5839] nr noflush writes: 0 [ 109.332420][ T5839] average write size: 0 B [ 109.332430][ T5839] nr direct reclaim: 0 [ 109.332440][ T5839] nr background reclaim: 0 [ 109.332449][ T5839] reclaim kicked: 0 [ 109.332459][ T5839] reclaim runs in: 0 ms [ 109.332468][ T5839] blocked: 0 [ 109.332478][ T5839] current entry sectors: 256 [ 109.332488][ T5839] current entry error: ok [ 109.332497][ T5839] current entry: closed [ 109.332507][ T5839] unwritten entries: [ 109.332516][ T5839] last buf closed [ 109.332525][ T5839] space: [ 109.332534][ T5839] discarded 256:1792 [ 109.332544][ T5839] clean ondisk 256:1792 [ 109.332554][ T5839] clean 256:1792 [ 109.332563][ T5839] total 256:2048 [ 109.332573][ T5839] dev 0: [ 109.332587][ T5839] nr 8 [ 109.332597][ T5839] bucket size 256 [ 109.332607][ T5839] available 6:256 [ 109.332616][ T5839] discard_idx 0 [ 109.332626][ T5839] dirty_ondisk 0 (seq 0) [ 109.332636][ T5839] dirty_idx 0 (seq 0) [ 109.332646][ T5839] cur_idx 0 (seq 0) [ 109.332656][ T5839] [ 285.961045][ T30] INFO: task syz-executor425:5828 blocked for more than 143 seconds. [ 285.969234][ T30] Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 285.977007][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 285.985758][ T30] task:syz-executor425 state:D stack:23840 pid:5828 tgid:5828 ppid:5825 flags:0x00004002 [ 285.996051][ T30] Call Trace: [ 285.999357][ T30] [ 286.002354][ T30] __schedule+0x1850/0x4c30 [ 286.006931][ T30] ? __pfx___schedule+0x10/0x10 [ 286.011847][ T30] ? __pfx_lock_release+0x10/0x10 [ 286.016915][ T30] ? schedule+0x90/0x320 [ 286.021234][ T30] schedule+0x14b/0x320 [ 286.025423][ T30] schedule_timeout+0xb0/0x290 [ 286.030186][ T30] ? __pfx_schedule_timeout+0x10/0x10 [ 286.035643][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 286.041683][ T30] ? wait_for_completion+0x2fe/0x620 [ 286.046975][ T30] ? wait_for_completion+0x2fe/0x620 [ 286.052305][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.057547][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.063371][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 286.068617][ T30] ? wait_for_completion+0x2fe/0x620 [ 286.073962][ T30] wait_for_completion+0x355/0x620 [ 286.079104][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.084818][ T30] ? __pfx_wait_for_completion+0x10/0x10 [ 286.090510][ T30] ? synchronize_rcu+0x11b/0x360 [ 286.095523][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.101201][ T30] ? kthread_unpark+0xd0/0x290 [ 286.105969][ T30] kthread_stop+0x19e/0x640 [ 286.110471][ T30] bch2_copygc_stop+0x4f/0x150 [ 286.115312][ T30] __bch2_fs_read_only+0x47/0x450 [ 286.120388][ T30] bch2_fs_read_only+0xb57/0x1200 [ 286.125516][ T30] ? __pfx_bch2_fs_read_only+0x10/0x10 [ 286.131057][ T30] ? __bch2_print+0x17a/0x220 [ 286.135767][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.141453][ T30] ? down_write+0x18c/0x220 [ 286.145973][ T30] ? __pfx_down_write+0x10/0x10 [ 286.150895][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.156551][ T30] ? hook_sb_delete+0xaa0/0xbd0 [ 286.161457][ T30] __bch2_fs_stop+0x105/0x5c0 [ 286.166171][ T30] ? __pfx___bch2_fs_stop+0x10/0x10 [ 286.171430][ T30] ? __pfx_evict_inodes+0x10/0x10 [ 286.176491][ T30] ? bch2_sync_fs+0x155/0x300 [ 286.181217][ T30] ? __pfx_bch2_put_super+0x10/0x10 [ 286.186438][ T30] generic_shutdown_super+0x13b/0x2d0 [ 286.191892][ T30] bch2_kill_sb+0x41/0x50 [ 286.196242][ T30] deactivate_locked_super+0xc6/0x130 [ 286.201681][ T30] cleanup_mnt+0x41f/0x4b0 [ 286.206132][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.211816][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 286.217136][ T30] task_work_run+0x251/0x310 [ 286.221874][ T30] ? __pfx_task_work_run+0x10/0x10 [ 286.227016][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.232690][ T30] ? path_umount+0x284/0xf70 [ 286.237308][ T30] ptrace_notify+0x2d2/0x380 [ 286.241956][ T30] ? __pfx_ptrace_notify+0x10/0x10 [ 286.247097][ T30] ? kmem_cache_free+0x195/0x410 [ 286.252124][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.257792][ T30] ? __x64_sys_umount+0x123/0x170 [ 286.262892][ T30] syscall_exit_work+0xc7/0x1d0 [ 286.267804][ T30] syscall_exit_to_user_mode+0x24a/0x340 [ 286.273526][ T30] do_syscall_64+0x100/0x230 [ 286.278157][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.284362][ T30] RIP: 0033:0x7f3bb341b347 [ 286.288795][ T30] RSP: 002b:00007fff7a13af48 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 286.297256][ T30] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3bb341b347 [ 286.305290][ T30] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff7a13b000 [ 286.313302][ T30] RBP: 00007fff7a13b000 R08: 0000000000000000 R09: 0000000000000000 [ 286.321314][ T30] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff7a13c060 [ 286.329281][ T30] R13: 0000555590b646c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 286.337323][ T30] [ 286.340374][ T30] INFO: task bch-copygc/loop:5839 blocked for more than 143 seconds. [ 286.348567][ T30] Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 286.356260][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.364966][ T30] task:bch-copygc/loop state:D stack:17008 pid:5839 tgid:5839 ppid:2 flags:0x00024000 [ 286.375229][ T30] Call Trace: [ 286.378516][ T30] [ 286.381509][ T30] __schedule+0x1850/0x4c30 [ 286.386064][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 286.392147][ T30] ? __pfx___schedule+0x10/0x10 [ 286.397028][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.402712][ T30] ? __pfx_lock_release+0x10/0x10 [ 286.407763][ T30] ? bch2_print_allocator_stuck+0x165/0xcb0 [ 286.413742][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.419411][ T30] ? bch2_print_allocator_stuck+0xc24/0xcb0 [ 286.425357][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.431058][ T30] ? schedule+0x90/0x320 [ 286.435307][ T30] schedule+0x14b/0x320 [ 286.439470][ T30] __closure_sync+0x259/0x2f0 [ 286.444195][ T30] ? __closure_sync+0x149/0x2f0 [ 286.449070][ T30] ? __pfx___closure_sync+0x10/0x10 [ 286.454334][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.459988][ T30] ? __bch2_wait_on_allocator+0x1d6/0x250 [ 286.465770][ T30] __bch2_write+0x562a/0x5dd0 [ 286.470498][ T30] ? __pfx_submit_bio_noacct_nocheck+0x10/0x10 [ 286.476713][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.482407][ T30] ? __pfx___bch2_write+0x10/0x10 [ 286.487432][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.493105][ T30] ? __bch2_read_extent+0x3075/0x4850 [ 286.498520][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.504250][ T30] ? __pfx___bch2_read_extent+0x10/0x10 [ 286.509851][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.515564][ T30] ? __pfx___mutex_trylock_common+0x10/0x10 [ 286.521580][ T30] ? __pfx_lock_release+0x10/0x10 [ 286.526643][ T30] bch2_write+0x9b5/0x1760 [ 286.531208][ T30] ? __pfx_bch2_write+0x10/0x10 [ 286.536084][ T30] ? bch2_trans_srcu_unlock+0x43e/0x5c0 [ 286.541694][ T30] ? bch2_data_update_read_done+0xfd/0x330 [ 286.547540][ T30] bch2_data_update_read_done+0x22e/0x330 [ 286.553322][ T30] ? __pfx_bch2_data_update_read_done+0x10/0x10 [ 286.559777][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.565456][ T30] ? bch2_trans_srcu_unlock+0x44d/0x5c0 [ 286.571091][ T30] bch2_moving_ctxt_do_pending_writes+0x44c/0x8d0 [ 286.577544][ T30] ? __pfx_bch2_moving_ctxt_do_pending_writes+0x10/0x10 [ 286.584541][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.590195][ T30] ? bch2_backpointer_get_key+0x434/0x970 [ 286.595976][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.601660][ T30] bch2_move_ratelimit+0x76c/0xeb0 [ 286.606775][ T30] ? bch2_move_get_io_opts_one+0x292/0xb90 [ 286.612674][ T30] ? __pfx_bch2_move_ratelimit+0x10/0x10 [ 286.618341][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.624018][ T30] ? bch2_path_put+0xfe1/0x2150 [ 286.628907][ T30] ? __asan_memset+0x23/0x50 [ 286.633567][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.639249][ T30] bch2_evacuate_bucket+0x26b3/0x3610 [ 286.644771][ T30] ? bch2_evacuate_bucket+0x30e/0x3610 [ 286.650283][ T30] ? __pfx_bch2_evacuate_bucket+0x10/0x10 [ 286.656077][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 286.662041][ T30] ? __pfx_register_lock_class+0x10/0x10 [ 286.667698][ T30] ? stack_trace_save+0x118/0x1d0 [ 286.672771][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.678441][ T30] ? bch2_backpointer_get_key+0x2b0/0x970 [ 286.684290][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.689956][ T30] ? __pfx_lock_acquire+0x10/0x10 [ 286.695071][ T30] ? bch2_copygc+0x435/0x4c90 [ 286.699867][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 286.705906][ T30] bch2_copygc+0x42c1/0x4c90 [ 286.710537][ T30] ? bch2_copygc+0x435/0x4c90 [ 286.715321][ T30] ? __pfx_bch2_copygc+0x10/0x10 [ 286.720293][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.725975][ T30] ? __pfx_lock_acquire+0x10/0x10 [ 286.731070][ T30] ? __pfx_lock_release+0x10/0x10 [ 286.736109][ T30] ? bch2_copygc+0x435/0x4c90 [ 286.740867][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.746521][ T30] ? bch2_copygc_wait_amount+0xc90/0xcf0 [ 286.752280][ T30] ? bch2_copygc+0x435/0x4c90 [ 286.757009][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.762699][ T30] ? bch2_trans_srcu_unlock+0x44d/0x5c0 [ 286.768288][ T30] bch2_copygc_thread+0x736/0xc10 [ 286.773371][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.779028][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 286.784651][ T30] ? bch2_copygc_thread+0x1a1/0xc10 [ 286.789937][ T30] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 286.795896][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.801584][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 286.806917][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 286.812876][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.818527][ T30] ? __kthread_parkme+0x169/0x1d0 [ 286.823603][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 286.829197][ T30] kthread+0x2f2/0x390 [ 286.833316][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 286.838892][ T30] ? __pfx_kthread+0x10/0x10 [ 286.843536][ T30] ret_from_fork+0x4d/0x80 [ 286.847973][ T30] ? __pfx_kthread+0x10/0x10 [ 286.852652][ T30] ret_from_fork_asm+0x1a/0x30 [ 286.857449][ T30] [ 286.860464][ T30] [ 286.860464][ T30] Showing all locks held in the system: [ 286.868218][ T30] 1 lock held by khungtaskd/30: [ 286.873110][ T30] #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 [ 286.883060][ T30] 2 locks held by getty/5581: [ 286.887746][ T30] #0: ffff8880350710a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 286.897573][ T30] #1: ffffc900033332f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 [ 286.907777][ T30] 2 locks held by syz-executor425/5828: [ 286.913364][ T30] #0: ffff888034daa0e0 (&type->s_umount_key#42){+.+.}-{4:4}, at: deactivate_super+0xb5/0xf0 [ 286.923708][ T30] #1: ffff888076a80278 (&c->state_lock){+.+.}-{4:4}, at: __bch2_fs_stop+0xfd/0x5c0 [ 286.933256][ T30] [ 286.935598][ T30] ============================================= [ 286.935598][ T30] [ 286.944055][ T30] NMI backtrace for cpu 1 [ 286.948391][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 286.958892][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 286.968945][ T30] Call Trace: [ 286.972222][ T30] [ 286.975151][ T30] dump_stack_lvl+0x241/0x360 [ 286.979863][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 286.985078][ T30] ? __pfx__printk+0x10/0x10 [ 286.989691][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 286.994649][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.000194][ T30] ? _printk+0xd5/0x120 [ 287.004361][ T30] ? __pfx__printk+0x10/0x10 [ 287.008963][ T30] ? __wake_up_klogd+0xcc/0x110 [ 287.013822][ T30] ? __pfx__printk+0x10/0x10 [ 287.018424][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 287.024095][ T30] ? __rcu_read_unlock+0xa1/0x110 [ 287.029128][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.035114][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 287.041108][ T30] watchdog+0xff6/0x1040 [ 287.045364][ T30] ? watchdog+0x1ea/0x1040 [ 287.049795][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.054573][ T30] kthread+0x2f2/0x390 [ 287.058744][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.063428][ T30] ? __pfx_kthread+0x10/0x10 [ 287.068027][ T30] ret_from_fork+0x4d/0x80 [ 287.072452][ T30] ? __pfx_kthread+0x10/0x10 [ 287.077051][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.081830][ T30] [ 287.085065][ T30] Sending NMI from CPU 1 to CPUs 0: [ 287.090296][ C0] NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x21/0x30 [ 287.091283][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 287.091300][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 287.091329][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 287.091345][ T30] Call Trace: [ 287.091355][ T30] [ 287.091366][ T30] dump_stack_lvl+0x241/0x360 [ 287.091409][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.091447][ T30] ? __pfx__printk+0x10/0x10 [ 287.091479][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.091519][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 287.091546][ T30] ? vscnprintf+0x5d/0x90 [ 287.091579][ T30] panic+0x349/0x880 [ 287.091615][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.091653][ T30] ? __pfx_panic+0x10/0x10 [ 287.091684][ T30] ? tick_nohz_tick_stopped+0x82/0xb0 [ 287.091726][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 287.091752][ T30] ? __irq_work_queue_local+0x137/0x410 [ 287.091785][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 287.091811][ T30] ? irq_work_queue+0xca/0x150 [ 287.091840][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.091868][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.091894][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 287.091921][ T30] ? nmi_trigger_cpumask_backtrace+0x251/0x320 [ 287.091956][ T30] watchdog+0x1035/0x1040 [ 287.091989][ T30] ? watchdog+0x1ea/0x1040 [ 287.092025][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.092056][ T30] kthread+0x2f2/0x390 [ 287.092088][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.092118][ T30] ? __pfx_kthread+0x10/0x10 [ 287.092152][ T30] ret_from_fork+0x4d/0x80 [ 287.092179][ T30] ? __pfx_kthread+0x10/0x10 [ 287.092212][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.092250][ T30] [ 287.271093][ T30] Kernel Offset: disabled [ 287.275412][ T30] Rebooting in 86400 seconds..