./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor476489925 <...> Warning: Permanently added '10.128.1.100' (ED25519) to the list of known hosts. execve("./syz-executor476489925", ["./syz-executor476489925"], 0x7ffcbd926630 /* 10 vars */) = 0 brk(NULL) = 0x555570625000 brk(0x555570625d00) = 0x555570625d00 arch_prctl(ARCH_SET_FS, 0x555570625380) = 0 set_tid_address(0x555570625650) = 5826 set_robust_list(0x555570625660, 24) = 0 rseq(0x555570625ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor476489925", 4096) = 27 getrandom("\x9b\xec\x5d\x77\x67\x51\x7a\x89", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555570625d00 brk(0x555570646d00) = 0x555570646d00 brk(0x555570647000) = 0x555570647000 mprotect(0x7f4cc30ca000, 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.BYNjtV", 0700) = 0 chmod("./syzkaller.BYNjtV", 0777) = 0 chdir("./syzkaller.BYNjtV") = 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 5827 attached [pid 5827] set_robust_list(0x555570625660, 24 [pid 5826] <... clone resumed>, child_tidptr=0x555570625650) = 5827 [pid 5827] <... set_robust_list resumed>) = 0 [pid 5827] chdir("./0") = 0 [pid 5827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5827] setpgid(0, 0) = 0 [pid 5827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5827] write(3, "1000", 4) = 4 [pid 5827] close(3) = 0 [pid 5827] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5827] write(1, "executing program\n", 18) = 18 [pid 5827] memfd_create("syzkaller", 0) = 3 [pid 5827] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4cbac00000 [pid 5827] 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 5827] munmap(0x7f4cbac00000, 138412032) = 0 [pid 5827] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5827] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5827] close(3) = 0 [pid 5827] close(4) = 0 [pid 5827] mkdir("./file0", 0777) = 0 [ 76.084398][ T5827] loop0: detected capacity change from 0 to 32768 [ 76.162031][ T5827] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 76.177334][ T5827] bcachefs (loop0): recovering from clean shutdown, journal seq 13 [ 76.198364][ T5827] bcachefs (loop0): accounting_read... done [ 76.204725][ T5827] bcachefs (loop0): alloc_read... done [pid 5827] 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 5827] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5827] chdir("./file0") = 0 [pid 5827] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 76.210311][ T5827] bcachefs (loop0): stripes_read... done [ 76.216004][ T5827] bcachefs (loop0): snapshots_read... done [ 76.224898][ T5827] bcachefs (loop0): journal_replay... done [ 76.230812][ T5827] bcachefs (loop0): resume_logged_ops... done [ 76.236937][ T5827] bcachefs (loop0): delete_dead_inodes... done [ 76.245517][ T5827] bcachefs (loop0): going read-write [ 76.255671][ T5827] bcachefs (loop0): done starting filesystem [pid 5827] ioctl(4, LOOP_CLR_FD) = 0 [pid 5827] close(4) = 0 [pid 5827] exit_group(0) = ? [pid 5827] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5827, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=32 /* 0.32 s */} --- 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, 0x5555706266f0 /* 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 unlink("./0/binderfs") = 0 [ 76.302841][ T5827] syz-executor476 (5827) used greatest stack depth: 18672 bytes left [ 76.321161][ T5826] bcachefs (loop0): shutting down [ 76.326295][ T5826] bcachefs (loop0): going read-only [ 76.331988][ T5826] bcachefs (loop0): finished waiting for writes to stop [ 86.211412][ T2141] cfg80211: failed to load regulatory.db [ 106.699920][ T5837] Allocator stuck? Waited for 30 seconds [ 106.699937][ T5837] Allocator debug: [ 106.699947][ T5837] capacity1536 [ 106.699956][ T5837] reserved 31232 [ 106.699966][ T5837] hidden 0 [ 106.699975][ T5837] btree 0 [ 106.699985][ T5837] data 0 [ 106.699994][ T5837] cached 0 [ 106.700004][ T5837] reserved 0 [ 106.700013][ T5837] online_reserved 24 [ 106.700025][ T5837] nr_inodes 0 [ 106.700034][ T5837] [ 106.700043][ T5837] freelist_wait waiting [ 106.700053][ T5837] open buckets allocated1 [ 106.700062][ T5837] open buckets total 1024 [ 106.700072][ T5837] open_buckets_wait empty [ 106.700081][ T5837] open_buckets_btree 0 [ 106.700091][ T5837] open_buckets_user 0 [ 106.700100][ T5837] btree reserve cache 0 [ 106.700110][ T5837] [ 106.700118][ T5837] Dev 0: [ 106.700127][ T5837] buckets sectors fragmented [ 106.700138][ T5837] free 0 0 0 [ 106.700149][ T5837] sb 0 0 0 [ 106.700160][ T5837] journal 0 0 0 [ 106.700172][ T5837] btree 0 0 0 [ 106.700183][ T5837] user 0 0 0 [ 106.700195][ T5837] cached 0 0 0 [ 106.700206][ T5837] parity 0 0 0 [ 106.700217][ T5837] stripe 0 0 0 [ 106.700228][ T5837] need_gc_gens 0 0 0 [ 106.700239][ T5837] need_discard 0 0 0 [ 106.700250][ T5837] unstriped 0 0 0 [ 106.700261][ T5837] capacity 128 [ 106.700271][ T5837] [ 106.700280][ T5837] reserves: [ 106.700290][ T5837] stripe 60 [ 106.700300][ T5837] normal 58 [ 106.700310][ T5837] copygc 56 [ 106.700319][ T5837] btree 28 [ 106.700329][ T5837] btree_copygc 0 [ 106.700339][ T5837] reclaim 0 [ 106.700348][ T5837] interior_updates 0 [ 106.700358][ T5837] [ 106.700366][ T5837] open buckets 0 [ 106.700376][ T5837] buckets to invalidate 0 [ 106.700385][ T5837] [ 106.700394][ T5837] Copygc debug: [ 106.700403][ T5837] running: 1 [ 106.700412][ T5837] copygc_wait:0 [ 106.700421][ T5837] copygc_wait_at:0 [ 106.700430][ T5837] Currently waiting for:0 B [ 106.700439][ T5837] Currently waiting since:640 KiB [ 106.700449][ T5837] Currently calculated wait:0 B [ 106.700459][ T5837] [ 106.700467][ T5837] Journal debug: [ 106.700476][ T5837] flags: replay_done,running,may_skip_flush,need_flush_write [ 106.700488][ T5837] dirty journal entries: 0/32768 [ 106.700498][ T5837] seq: 13 [ 106.700508][ T5837] seq_ondisk: 13 [ 106.700517][ T5837] last_seq: 14 [ 106.700527][ T5837] last_seq_ondisk: 14 [ 106.700537][ T5837] flushed_seq_ondisk: 13 [ 106.700551][ T5837] watermark: stripe [ 106.700561][ T5837] each entry reserved: 321 [ 106.700571][ T5837] nr flush writes: 0 [ 106.700580][ T5837] nr noflush writes: 0 [ 106.700590][ T5837] average write size: 0 B [ 106.700600][ T5837] nr direct reclaim: 0 [ 106.700609][ T5837] nr background reclaim: 0 [ 106.700619][ T5837] reclaim kicked: 0 [ 106.700629][ T5837] reclaim runs in: 0 ms [ 106.700638][ T5837] blocked: 0 [ 106.700648][ T5837] current entry sectors: 256 [ 106.700658][ T5837] current entry error: ok [ 106.700667][ T5837] current entry: closed [ 106.700677][ T5837] unwritten entries: [ 106.700686][ T5837] last buf closed [ 106.700695][ T5837] space: [ 106.700704][ T5837] discarded 256:1792 [ 106.700714][ T5837] clean ondisk 256:1792 [ 106.700724][ T5837] clean 256:1792 [ 106.700734][ T5837] total 256:2048 [ 106.700744][ T5837] dev 0: [ 106.700753][ T5837] nr 8 [ 106.700762][ T5837] bucket size 256 [ 106.700772][ T5837] available 6:256 [ 106.700782][ T5837] discard_idx 0 [ 106.700791][ T5837] dirty_ondisk 0 (seq 0) [ 106.700801][ T5837] dirty_idx 0 (seq 0) [ 106.700811][ T5837] cur_idx 0 (seq 0) [ 106.700821][ T5837] [ 285.889352][ T30] INFO: task syz-executor476:5826 blocked for more than 143 seconds. [ 285.897511][ T30] Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 [ 285.905460][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 285.914191][ T30] task:syz-executor476 state:D stack:23840 pid:5826 tgid:5826 ppid:5823 flags:0x00004002 [ 285.924480][ T30] Call Trace: [ 285.927788][ T30] [ 285.930786][ T30] __schedule+0x1850/0x4c30 [ 285.935533][ T30] ? __pfx___schedule+0x10/0x10 [ 285.940448][ T30] ? __pfx_lock_release+0x10/0x10 [ 285.945516][ T30] ? schedule+0x90/0x320 [ 285.949823][ T30] schedule+0x14b/0x320 [ 285.954023][ T30] schedule_timeout+0xb0/0x290 [ 285.958979][ T30] ? __pfx_schedule_timeout+0x10/0x10 [ 285.964407][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 285.970451][ T30] ? wait_for_completion+0x2fe/0x620 [ 285.975750][ T30] ? wait_for_completion+0x2fe/0x620 [ 285.981092][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 285.986320][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 285.992008][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 285.997242][ T30] ? wait_for_completion+0x2fe/0x620 [ 286.002603][ T30] wait_for_completion+0x355/0x620 [ 286.007759][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.013572][ T30] ? __pfx_wait_for_completion+0x10/0x10 [ 286.019286][ T30] ? synchronize_rcu+0x11b/0x360 [ 286.024237][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.029912][ T30] ? kthread_unpark+0xd0/0x290 [ 286.034710][ T30] kthread_stop+0x19e/0x640 [ 286.039272][ T30] bch2_copygc_stop+0x4f/0x150 [ 286.044434][ T30] __bch2_fs_read_only+0x47/0x450 [ 286.049552][ T30] bch2_fs_read_only+0xb57/0x1200 [ 286.054656][ T30] ? __pfx_bch2_fs_read_only+0x10/0x10 [ 286.060223][ T30] ? __bch2_print+0x17a/0x220 [ 286.064941][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.070645][ T30] ? down_write+0x18c/0x220 [ 286.075169][ T30] ? __pfx_down_write+0x10/0x10 [ 286.080083][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.085738][ T30] ? hook_sb_delete+0xaa0/0xbd0 [ 286.090823][ T30] __bch2_fs_stop+0x105/0x5c0 [ 286.095564][ T30] ? __pfx___bch2_fs_stop+0x10/0x10 [ 286.100915][ T30] ? __pfx_evict_inodes+0x10/0x10 [ 286.105971][ T30] ? bch2_sync_fs+0x155/0x300 [ 286.110705][ T30] ? __pfx_bch2_put_super+0x10/0x10 [ 286.115963][ T30] generic_shutdown_super+0x13b/0x2d0 [ 286.121462][ T30] bch2_kill_sb+0x41/0x50 [ 286.125813][ T30] deactivate_locked_super+0xc6/0x130 [ 286.131268][ T30] cleanup_mnt+0x41f/0x4b0 [ 286.135932][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.141707][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 286.146945][ T30] task_work_run+0x251/0x310 [ 286.151603][ T30] ? __pfx_task_work_run+0x10/0x10 [ 286.156766][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.162453][ T30] ? path_umount+0x284/0xf70 [ 286.167077][ T30] ptrace_notify+0x2d2/0x380 [ 286.171759][ T30] ? __pfx_ptrace_notify+0x10/0x10 [ 286.176953][ T30] ? kmem_cache_free+0x195/0x410 [ 286.181987][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.187661][ T30] ? __x64_sys_umount+0x123/0x170 [ 286.192777][ T30] syscall_exit_work+0xc7/0x1d0 [ 286.197683][ T30] syscall_exit_to_user_mode+0x24a/0x340 [ 286.203378][ T30] do_syscall_64+0x100/0x230 [ 286.208009][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.213984][ T30] RIP: 0033:0x7f4cc3048347 [ 286.218419][ T30] RSP: 002b:00007ffe85cd8998 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 286.226897][ T30] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f4cc3048347 [ 286.234914][ T30] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe85cd8a50 [ 286.242936][ T30] RBP: 00007ffe85cd8a50 R08: 0000000000000000 R09: 0000000000000000 [ 286.250986][ T30] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffe85cd9ab0 [ 286.258956][ T30] R13: 00005555706266c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 286.266993][ T30] [ 286.270070][ T30] INFO: task bch-copygc/loop:5837 blocked for more than 143 seconds. [ 286.278164][ T30] Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 [ 286.285851][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.294646][ T30] task:bch-copygc/loop state:D stack:19376 pid:5837 tgid:5837 ppid:2 flags:0x00024000 [ 286.304913][ T30] Call Trace: [ 286.308217][ T30] [ 286.311302][ T30] __schedule+0x1850/0x4c30 [ 286.315860][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 286.321948][ T30] ? __pfx___schedule+0x10/0x10 [ 286.326836][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.332519][ T30] ? __pfx_lock_release+0x10/0x10 [ 286.337572][ T30] ? bch2_print_allocator_stuck+0x165/0xcb0 [ 286.343538][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.349306][ T30] ? bch2_print_allocator_stuck+0xc24/0xcb0 [ 286.355231][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.360918][ T30] ? schedule+0x90/0x320 [ 286.365307][ T30] schedule+0x14b/0x320 [ 286.369533][ T30] __closure_sync+0x259/0x2f0 [ 286.374238][ T30] ? __closure_sync+0x149/0x2f0 [ 286.379092][ T30] ? __pfx___closure_sync+0x10/0x10 [ 286.384353][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.390036][ T30] ? __bch2_wait_on_allocator+0x1d6/0x250 [ 286.395764][ T30] __bch2_write+0x562a/0x5dd0 [ 286.400535][ T30] ? __pfx_submit_bio_noacct_nocheck+0x10/0x10 [ 286.406721][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.412418][ T30] ? __pfx___bch2_write+0x10/0x10 [ 286.417468][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.423170][ T30] ? __bch2_read_extent+0x3075/0x4850 [ 286.428601][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.434300][ T30] ? __pfx___bch2_read_extent+0x10/0x10 [ 286.440061][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.445733][ T30] ? __pfx___mutex_trylock_common+0x10/0x10 [ 286.451702][ T30] ? __pfx_lock_release+0x10/0x10 [ 286.456771][ T30] bch2_write+0x9b5/0x1760 [ 286.461269][ T30] ? __pfx_bch2_write+0x10/0x10 [ 286.466142][ T30] ? bch2_trans_srcu_unlock+0x43e/0x5c0 [ 286.471748][ T30] ? bch2_data_update_read_done+0xfd/0x330 [ 286.477594][ T30] bch2_data_update_read_done+0x22e/0x330 [ 286.483375][ T30] ? __pfx_bch2_data_update_read_done+0x10/0x10 [ 286.489695][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.495329][ T30] ? bch2_trans_srcu_unlock+0x44d/0x5c0 [ 286.500935][ T30] bch2_moving_ctxt_do_pending_writes+0x44c/0x8d0 [ 286.507388][ T30] ? __pfx_bch2_moving_ctxt_do_pending_writes+0x10/0x10 [ 286.514389][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.520077][ T30] ? bch2_backpointer_get_key+0x434/0x970 [ 286.525807][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.531486][ T30] bch2_move_ratelimit+0x76c/0xeb0 [ 286.536650][ T30] ? bch2_move_get_io_opts_one+0x292/0xb90 [ 286.542544][ T30] ? __pfx_bch2_move_ratelimit+0x10/0x10 [ 286.548214][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.553902][ T30] ? bch2_path_put+0xfe1/0x2150 [ 286.558796][ T30] ? __asan_memset+0x23/0x50 [ 286.563437][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.569096][ T30] bch2_evacuate_bucket+0x26b3/0x3610 [ 286.574555][ T30] ? bch2_evacuate_bucket+0x30e/0x3610 [ 286.580118][ T30] ? __pfx_bch2_evacuate_bucket+0x10/0x10 [ 286.585879][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 286.591913][ T30] ? __pfx_register_lock_class+0x10/0x10 [ 286.597580][ T30] ? stack_trace_save+0x118/0x1d0 [ 286.602685][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.608356][ T30] ? bch2_backpointer_get_key+0x2b0/0x970 [ 286.614143][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.619841][ T30] ? __pfx_lock_acquire+0x10/0x10 [ 286.624882][ T30] ? bch2_copygc+0x435/0x4c90 [ 286.629625][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 286.635644][ T30] bch2_copygc+0x42c1/0x4c90 [ 286.640301][ T30] ? bch2_copygc+0x435/0x4c90 [ 286.645045][ T30] ? __pfx_bch2_copygc+0x10/0x10 [ 286.650059][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.655717][ T30] ? __pfx_lock_acquire+0x10/0x10 [ 286.660883][ T30] ? __pfx_lock_release+0x10/0x10 [ 286.665943][ T30] ? bch2_copygc+0x435/0x4c90 [ 286.670687][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.676447][ T30] ? bch2_copygc_wait_amount+0xc90/0xcf0 [ 286.682177][ T30] ? bch2_copygc+0x435/0x4c90 [ 286.686889][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.692569][ T30] ? bch2_trans_srcu_unlock+0x44d/0x5c0 [ 286.698163][ T30] bch2_copygc_thread+0x736/0xc10 [ 286.703247][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.708910][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 286.714511][ T30] ? bch2_copygc_thread+0x1a1/0xc10 [ 286.719843][ T30] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 286.725755][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.731462][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 286.736892][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 286.742883][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 286.748547][ T30] ? __kthread_parkme+0x169/0x1d0 [ 286.753635][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 286.759269][ T30] kthread+0x2f2/0x390 [ 286.763544][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 286.769208][ T30] ? __pfx_kthread+0x10/0x10 [ 286.773825][ T30] ret_from_fork+0x4d/0x80 [ 286.778240][ T30] ? __pfx_kthread+0x10/0x10 [ 286.782879][ T30] ret_from_fork_asm+0x1a/0x30 [ 286.787676][ T30] [ 286.790768][ T30] [ 286.790768][ T30] Showing all locks held in the system: [ 286.798492][ T30] 1 lock held by khungtaskd/30: [ 286.803394][ T30] #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 [ 286.813387][ T30] 2 locks held by getty/5582: [ 286.818089][ T30] #0: ffff8880355410a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 286.827919][ T30] #1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 [ 286.838149][ T30] 2 locks held by syz-executor476/5826: [ 286.843765][ T30] #0: ffff888076e000e0 (&type->s_umount_key#42){+.+.}-{4:4}, at: deactivate_super+0xb5/0xf0 [ 286.854199][ T30] #1: ffff888073d00278 (&c->state_lock){+.+.}-{4:4}, at: __bch2_fs_stop+0xfd/0x5c0 [ 286.863749][ T30] [ 286.866100][ T30] ============================================= [ 286.866100][ T30] [ 286.874561][ T30] NMI backtrace for cpu 1 [ 286.878898][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 [ 286.889492][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 286.899549][ T30] Call Trace: [ 286.902829][ T30] [ 286.905759][ T30] dump_stack_lvl+0x241/0x360 [ 286.910463][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 286.915712][ T30] ? __pfx__printk+0x10/0x10 [ 286.920327][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 286.925285][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 286.930778][ T30] ? _printk+0xd5/0x120 [ 286.934948][ T30] ? __pfx__printk+0x10/0x10 [ 286.939550][ T30] ? __wake_up_klogd+0xcc/0x110 [ 286.944407][ T30] ? __pfx__printk+0x10/0x10 [ 286.949020][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 286.955007][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 286.961004][ T30] watchdog+0xff6/0x1040 [ 286.965259][ T30] ? watchdog+0x1ea/0x1040 [ 286.969777][ T30] ? __pfx_watchdog+0x10/0x10 [ 286.974465][ T30] kthread+0x2f2/0x390 [ 286.978545][ T30] ? __pfx_watchdog+0x10/0x10 [ 286.983231][ T30] ? __pfx_kthread+0x10/0x10 [ 286.987832][ T30] ret_from_fork+0x4d/0x80 [ 286.992432][ T30] ? __pfx_kthread+0x10/0x10 [ 286.997052][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.001834][ T30] [ 287.004949][ T30] Sending NMI from CPU 1 to CPUs 0: [ 287.010215][ C0] NMI backtrace for cpu 0 [ 287.010229][ C0] CPU: 0 UID: 0 PID: 5186 Comm: klogd Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 [ 287.010255][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 287.010269][ C0] RIP: 0033:0x7f7f6e49b4ce [ 287.010289][ C0] Code: 89 44 24 10 48 8d 44 24 20 c7 44 24 0c 30 00 00 00 48 89 44 24 18 e8 58 fb ff ff 48 81 c4 d8 00 00 00 c3 31 c9 e9 49 fb ff ff <48> 81 ec d8 00 00 00 41 89 f2 48 89 d6 48 89 4c 24 38 4c 89 44 24 [ 287.010307][ C0] RSP: 002b:00007ffce3b6f548 EFLAGS: 00000246 [ 287.010329][ C0] RAX: 0000000000000000 RBX: 00007f7f6e6406a0 RCX: 00007f7f6e640668 [ 287.010345][ C0] RDX: 00007f7f6e630212 RSI: 0000000000000000 RDI: 0000000000000006 [ 287.010361][ C0] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000 [ 287.010375][ C0] R10: 1999999999999999 R11: ffffffffffffffff R12: 00007f7f6e6404a0 [ 287.010393][ C0] R13: 00007f7f6e630212 R14: 00007f7f6e640665 R15: 00007f7f6e6406a1 [ 287.010410][ C0] FS: 00007f7f6e340380 GS: 0000000000000000 [ 287.011216][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 287.118919][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 [ 287.129454][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 287.139515][ T30] Call Trace: [ 287.142798][ T30] [ 287.145817][ T30] dump_stack_lvl+0x241/0x360 [ 287.150519][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.155739][ T30] ? __pfx__printk+0x10/0x10 [ 287.160340][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.166340][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 287.171985][ T30] ? vscnprintf+0x5d/0x90 [ 287.176328][ T30] panic+0x349/0x880 [ 287.180234][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 287.185963][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.192127][ T30] ? __pfx_panic+0x10/0x10 [ 287.196564][ T30] ? tick_nohz_tick_stopped+0x82/0xb0 [ 287.201958][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 287.207597][ T30] ? __irq_work_queue_local+0x137/0x410 [ 287.213161][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 287.218972][ T30] ? irq_work_queue+0xca/0x150 [ 287.223744][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.229731][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.235714][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 287.241350][ T30] ? nmi_trigger_cpumask_backtrace+0x251/0x320 [ 287.247523][ T30] watchdog+0x1035/0x1040 [ 287.251867][ T30] ? watchdog+0x1ea/0x1040 [ 287.256299][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.260982][ T30] kthread+0x2f2/0x390 [ 287.265072][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.269759][ T30] ? __pfx_kthread+0x10/0x10 [ 287.274359][ T30] ret_from_fork+0x4d/0x80 [ 287.278785][ T30] ? __pfx_kthread+0x10/0x10 [ 287.283383][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.288167][ T30] [ 287.291411][ T30] Kernel Offset: disabled [ 287.295741][ T30] Rebooting in 86400 seconds..