./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2352670774 <...> Warning: Permanently added '10.128.0.181' (ED25519) to the list of known hosts. execve("./syz-executor2352670774", ["./syz-executor2352670774"], 0x7ffdcd668e60 /* 10 vars */) = 0 brk(NULL) = 0x555583880000 brk(0x555583880d00) = 0x555583880d00 arch_prctl(ARCH_SET_FS, 0x555583880380) = 0 set_tid_address(0x555583880650) = 5816 set_robust_list(0x555583880660, 24) = 0 rseq(0x555583880ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2352670774", 4096) = 28 getrandom("\xe4\x1b\xe3\x22\xc5\x99\x15\xe4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555583880d00 brk(0x5555838a1d00) = 0x5555838a1d00 brk(0x5555838a2000) = 0x5555838a2000 mprotect(0x7feaa4d6f000, 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.mcXXti", 0700) = 0 chmod("./syzkaller.mcXXti", 0777) = 0 chdir("./syzkaller.mcXXti") = 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 5818 attached [pid 5818] set_robust_list(0x555583880660, 24) = 0 [pid 5818] chdir("./0" [pid 5816] <... clone resumed>, child_tidptr=0x555583880650) = 5818 [pid 5818] <... chdir resumed>) = 0 [pid 5818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5818] setpgid(0, 0) = 0 [pid 5818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5818] write(3, "1000", 4) = 4 [pid 5818] close(3) = 0 [pid 5818] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5818] write(1, "executing program\n", 18) = 18 [pid 5818] memfd_create("syzkaller", 0) = 3 [pid 5818] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea9c800000 [pid 5818] 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 5818] munmap(0x7fea9c800000, 138412032) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5818] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5818] close(3) = 0 [pid 5818] close(4) = 0 [pid 5818] mkdir("./file0", 0777) = 0 [ 63.689235][ T5818] loop0: detected capacity change from 0 to 32768 [ 63.792612][ T5818] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 63.808243][ T5818] bcachefs (loop0): recovering from clean shutdown, journal seq 13 [ 63.827944][ T5818] bcachefs (loop0): accounting_read... done [ 63.835094][ T5818] bcachefs (loop0): alloc_read... done [pid 5818] 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 5818] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5818] chdir("./file0") = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5818] ioctl(4, LOOP_CLR_FD) = 0 [pid 5818] close(4) = 0 [pid 5818] exit_group(0) = ? [pid 5818] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5818, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 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, 0x5555838816f0 /* 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 [ 63.841158][ T5818] bcachefs (loop0): stripes_read... done [ 63.847027][ T5818] bcachefs (loop0): snapshots_read... done [ 63.854935][ T5818] bcachefs (loop0): journal_replay... done [ 63.860918][ T5818] bcachefs (loop0): resume_logged_ops... done [ 63.867093][ T5818] bcachefs (loop0): delete_dead_inodes... done [ 63.875910][ T5818] bcachefs (loop0): going read-write [ 63.884892][ T5818] bcachefs (loop0): done starting filesystem [ 63.930796][ T5816] bcachefs (loop0): shutting down [ 63.935957][ T5816] bcachefs (loop0): going read-only [ 63.941995][ T5816] bcachefs (loop0): finished waiting for writes to stop [ 82.038930][ T975] cfg80211: failed to load regulatory.db [ 94.207317][ T5827] Allocator stuck? Waited for 30 seconds [ 94.207341][ T5827] Allocator debug: [ 94.207346][ T5827] capacity1536 [ 94.207351][ T5827] reserved 31232 [ 94.207356][ T5827] hidden 0 [ 94.207361][ T5827] btree 0 [ 94.207365][ T5827] data 0 [ 94.207370][ T5827] cached 0 [ 94.207375][ T5827] reserved 0 [ 94.207380][ T5827] online_reserved 24 [ 94.207385][ T5827] nr_inodes 0 [ 94.207389][ T5827] [ 94.207394][ T5827] freelist_wait waiting [ 94.207398][ T5827] open buckets allocated1 [ 94.207403][ T5827] open buckets total 1024 [ 94.207408][ T5827] open_buckets_wait empty [ 94.207413][ T5827] open_buckets_btree 0 [ 94.207417][ T5827] open_buckets_user 0 [ 94.207422][ T5827] btree reserve cache 0 [ 94.207427][ T5827] [ 94.207431][ T5827] Dev 0: [ 94.207435][ T5827] buckets sectors fragmented [ 94.207441][ T5827] free 0 0 0 [ 94.207446][ T5827] sb 0 0 0 [ 94.207452][ T5827] journal 0 0 0 [ 94.207461][ T5827] btree 0 0 0 [ 94.207466][ T5827] user 0 0 0 [ 94.207472][ T5827] cached 0 0 0 [ 94.207477][ T5827] parity 0 0 0 [ 94.207483][ T5827] stripe 0 0 0 [ 94.207488][ T5827] need_gc_gens 0 0 0 [ 94.207494][ T5827] need_discard 0 0 0 [ 94.207499][ T5827] unstriped 0 0 0 [ 94.207504][ T5827] capacity 128 [ 94.207509][ T5827] [ 94.207513][ T5827] reserves: [ 94.207518][ T5827] stripe 60 [ 94.207523][ T5827] normal 58 [ 94.207531][ T5827] copygc 56 [ 94.207536][ T5827] btree 28 [ 94.207540][ T5827] btree_copygc 0 [ 94.207545][ T5827] reclaim 0 [ 94.207550][ T5827] interior_updates 0 [ 94.207555][ T5827] [ 94.207559][ T5827] open buckets 0 [ 94.207564][ T5827] buckets to invalidate 0 [ 94.207569][ T5827] [ 94.207573][ T5827] Copygc debug: [ 94.207577][ T5827] running: 0 [ 94.207582][ T5827] copygc_wait:0 [ 94.207586][ T5827] copygc_wait_at:0 [ 94.207591][ T5827] Currently waiting for:0 B [ 94.207596][ T5827] Currently waiting since:640 KiB [ 94.207601][ T5827] Currently calculated wait:0 B [ 94.207606][ T5827] [ 94.207610][ T5827] Journal debug: [ 94.207614][ T5827] flags: replay_done,running,may_skip_flush,need_flush_write [ 94.207620][ T5827] dirty journal entries: 0/32768 [ 94.207625][ T5827] seq: 13 [ 94.207630][ T5827] seq_ondisk: 13 [ 94.207635][ T5827] last_seq: 14 [ 94.207640][ T5827] last_seq_ondisk: 14 [ 94.207644][ T5827] flushed_seq_ondisk: 13 [ 94.207649][ T5827] watermark: stripe [ 94.207654][ T5827] each entry reserved: 321 [ 94.207659][ T5827] nr flush writes: 0 [ 94.207664][ T5827] nr noflush writes: 0 [ 94.207668][ T5827] average write size: 0 B [ 94.207673][ T5827] nr direct reclaim: 0 [ 94.207678][ T5827] nr background reclaim: 0 [ 94.207683][ T5827] reclaim kicked: 0 [ 94.207687][ T5827] reclaim runs in: 0 ms [ 94.207692][ T5827] blocked: 0 [ 94.207697][ T5827] current entry sectors: 256 [ 94.207702][ T5827] current entry error: ok [ 94.207707][ T5827] current entry: closed [ 94.207711][ T5827] unwritten entries: [ 94.207716][ T5827] last buf closed [ 94.207721][ T5827] space: [ 94.207725][ T5827] discarded 256:1792 [ 94.207730][ T5827] clean ondisk 256:1792 [ 94.207735][ T5827] clean 256:1792 [ 94.207740][ T5827] total 256:2048 [ 94.207745][ T5827] dev 0: [ 94.207749][ T5827] nr 8 [ 94.207754][ T5827] bucket size 256 [ 94.207759][ T5827] available 6:256 [ 94.207764][ T5827] discard_idx 0 [ 94.207768][ T5827] dirty_ondisk 0 (seq 0) [ 94.207773][ T5827] dirty_idx 0 (seq 0) [ 94.207778][ T5827] cur_idx 0 (seq 0) [ 94.207783][ T5827] [ 286.839103][ T30] INFO: task syz-executor235:5816 blocked for more than 143 seconds. [ 286.847949][ T30] Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 286.855654][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.864654][ T30] task:syz-executor235 state:D stack:23840 pid:5816 tgid:5816 ppid:5813 flags:0x00004002 [ 286.874980][ T30] Call Trace: [ 286.878341][ T30] [ 286.881290][ T30] __schedule+0x17fb/0x4be0 [ 286.885840][ T30] ? __pfx___schedule+0x10/0x10 [ 286.890745][ T30] ? __pfx_lock_release+0x10/0x10 [ 286.895886][ T30] ? schedule+0x90/0x320 [ 286.900208][ T30] schedule+0x14b/0x320 [ 286.904405][ T30] schedule_timeout+0xb0/0x290 [ 286.909229][ T30] ? __pfx_schedule_timeout+0x10/0x10 [ 286.914654][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 286.920723][ T30] ? wait_for_completion+0x2fe/0x620 [ 286.926058][ T30] ? wait_for_completion+0x2fe/0x620 [ 286.931420][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.936783][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 286.941979][ T30] ? wait_for_completion+0x2fe/0x620 [ 286.947312][ T30] wait_for_completion+0x355/0x620 [ 286.952538][ T30] ? __pfx_wait_for_completion+0x10/0x10 [ 286.958278][ T30] ? synchronize_rcu+0x11b/0x360 [ 286.963263][ T30] ? kthread_unpark+0xd0/0x290 [ 286.968096][ T30] kthread_stop+0x19e/0x640 [ 286.972625][ T30] bch2_copygc_stop+0x4f/0x150 [ 286.977468][ T30] __bch2_fs_read_only+0x47/0x450 [ 286.982539][ T30] bch2_fs_read_only+0xb57/0x1200 [ 286.987676][ T30] ? __pfx_bch2_fs_read_only+0x10/0x10 [ 286.993275][ T30] ? __bch2_print+0x17a/0x220 [ 286.998045][ T30] ? down_write+0x18c/0x220 [ 287.002564][ T30] ? __pfx_down_write+0x10/0x10 [ 287.007561][ T30] ? hook_sb_delete+0xaa0/0xbd0 [ 287.012461][ T30] __bch2_fs_stop+0x105/0x5c0 [ 287.017208][ T30] ? __pfx___bch2_fs_stop+0x10/0x10 [ 287.022421][ T30] ? __pfx_evict_inodes+0x10/0x10 [ 287.027488][ T30] ? bch2_sync_fs+0x155/0x300 [ 287.032180][ T30] ? __pfx_bch2_put_super+0x10/0x10 [ 287.037425][ T30] generic_shutdown_super+0x139/0x2d0 [ 287.042812][ T30] bch2_kill_sb+0x41/0x50 [ 287.047251][ T30] deactivate_locked_super+0xc4/0x130 [ 287.052638][ T30] cleanup_mnt+0x41f/0x4b0 [ 287.057097][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 287.062316][ T30] task_work_run+0x24f/0x310 [ 287.066958][ T30] ? __pfx_task_work_run+0x10/0x10 [ 287.072096][ T30] ? path_umount+0x284/0xf70 [ 287.076779][ T30] ptrace_notify+0x2d2/0x380 [ 287.081587][ T30] ? __pfx_ptrace_notify+0x10/0x10 [ 287.086765][ T30] ? kmem_cache_free+0x195/0x410 [ 287.091722][ T30] ? __x64_sys_umount+0x123/0x170 [ 287.096803][ T30] syscall_exit_work+0xc7/0x1d0 [ 287.101693][ T30] syscall_exit_to_user_mode+0x24a/0x340 [ 287.107405][ T30] do_syscall_64+0x100/0x230 [ 287.112089][ T30] ? clear_bhb_loop+0x35/0x90 [ 287.116867][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.122814][ T30] RIP: 0033:0x7feaa4ced347 [ 287.127310][ T30] RSP: 002b:00007ffea3ff4938 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 287.135801][ T30] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007feaa4ced347 [ 287.143838][ T30] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffea3ff49f0 [ 287.151869][ T30] RBP: 00007ffea3ff49f0 R08: 0000000000000000 R09: 0000000000000000 [ 287.159879][ T30] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffea3ff5a50 [ 287.167903][ T30] R13: 00005555838816c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 287.175892][ T30] [ 287.179115][ T30] INFO: task bch-copygc/loop:5827 blocked for more than 143 seconds. [ 287.187260][ T30] Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 287.194971][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.203786][ T30] task:bch-copygc/loop state:D stack:19344 pid:5827 tgid:5827 ppid:2 flags:0x00024000 [ 287.214240][ T30] Call Trace: [ 287.217604][ T30] [ 287.220558][ T30] __schedule+0x17fb/0x4be0 [ 287.225083][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.231591][ T30] ? __pfx___schedule+0x10/0x10 [ 287.236691][ T30] ? __pfx_lock_release+0x10/0x10 [ 287.241713][ T30] ? bch2_print_allocator_stuck+0x165/0xcb0 [ 287.247965][ T30] ? bch2_print_allocator_stuck+0xc24/0xcb0 [ 287.254365][ T30] ? schedule+0x90/0x320 [ 287.258698][ T30] schedule+0x14b/0x320 [ 287.262874][ T30] __closure_sync+0x259/0x2f0 [ 287.267608][ T30] ? __closure_sync+0x149/0x2f0 [ 287.272476][ T30] ? __pfx___closure_sync+0x10/0x10 [ 287.277761][ T30] ? __bch2_wait_on_allocator+0x1d6/0x250 [ 287.283503][ T30] __bch2_write+0x562a/0x5dd0 [ 287.288284][ T30] ? __pfx_validate_chain+0x10/0x10 [ 287.293522][ T30] ? mark_lock+0x9a/0x360 [ 287.297936][ T30] ? __pfx___bch2_write+0x10/0x10 [ 287.302993][ T30] ? __pfx_validate_chain+0x10/0x10 [ 287.308255][ T30] ? __pfx_validate_chain+0x10/0x10 [ 287.313577][ T30] ? __lock_acquire+0x1397/0x2100 [ 287.318735][ T30] bch2_write+0x9b5/0x1760 [ 287.323191][ T30] ? mark_lock+0x9a/0x360 [ 287.328041][ T30] ? __pfx_bch2_write+0x10/0x10 [ 287.332919][ T30] ? bch2_data_update_read_done+0xfd/0x330 [ 287.338990][ T30] bch2_data_update_read_done+0x22e/0x330 [ 287.344743][ T30] ? __pfx_bch2_data_update_read_done+0x10/0x10 [ 287.351514][ T30] ? bch2_trans_srcu_unlock+0x57/0x5c0 [ 287.357433][ T30] bch2_moving_ctxt_do_pending_writes+0x44c/0x8d0 [ 287.363957][ T30] ? __pfx_bch2_moving_ctxt_do_pending_writes+0x10/0x10 [ 287.370997][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 287.377007][ T30] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 287.383399][ T30] ? finish_wait+0xd4/0x1e0 [ 287.387976][ T30] move_buckets_wait+0x2ba/0x1290 [ 287.393142][ T30] ? __pfx_move_buckets_wait+0x10/0x10 [ 287.398681][ T30] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 287.404403][ T30] ? __pfx_autoremove_wake_function+0x10/0x10 [ 287.410519][ T30] ? bch2_get_next_online_dev+0x4b9/0x4f0 [ 287.416287][ T30] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 287.421989][ T30] bch2_copygc_thread+0x83f/0xc10 [ 287.427066][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 287.432608][ T30] ? bch2_copygc_thread+0x1a1/0xc10 [ 287.437917][ T30] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 287.443849][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 287.449132][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 287.455070][ T30] ? __kthread_parkme+0x169/0x1d0 [ 287.460194][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 287.465775][ T30] kthread+0x2f0/0x390 [ 287.469926][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 287.475587][ T30] ? __pfx_kthread+0x10/0x10 [ 287.480328][ T30] ret_from_fork+0x4b/0x80 [ 287.484759][ T30] ? __pfx_kthread+0x10/0x10 [ 287.489456][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.494258][ T30] [ 287.497353][ T30] [ 287.497353][ T30] Showing all locks held in the system: [ 287.505089][ T30] 1 lock held by khungtaskd/30: [ 287.510027][ T30] #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 [ 287.519992][ T30] 5 locks held by kworker/u8:2/35: [ 287.525373][ T30] 2 locks held by getty/5573: [ 287.530131][ T30] #0: ffff888034f7a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.539995][ T30] #1: ffffc9000330b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 [ 287.550430][ T30] 2 locks held by syz-executor235/5816: [ 287.556093][ T30] #0: ffff88807ea720e0 (&type->s_umount_key#43){+.+.}-{4:4}, at: deactivate_super+0xb5/0xf0 [ 287.566393][ T30] #1: ffff888071f80278 (&c->state_lock){+.+.}-{4:4}, at: __bch2_fs_stop+0xfd/0x5c0 [ 287.575880][ T30] [ 287.578255][ T30] ============================================= [ 287.578255][ T30] [ 287.586740][ T30] NMI backtrace for cpu 1 [ 287.591095][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 287.601724][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 287.611771][ T30] Call Trace: [ 287.615041][ T30] [ 287.617962][ T30] dump_stack_lvl+0x241/0x360 [ 287.622641][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.627914][ T30] ? __pfx__printk+0x10/0x10 [ 287.632668][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 287.637610][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.643094][ T30] ? _printk+0xd5/0x120 [ 287.647240][ T30] ? __pfx__printk+0x10/0x10 [ 287.651815][ T30] ? __wake_up_klogd+0xcc/0x110 [ 287.656661][ T30] ? __pfx__printk+0x10/0x10 [ 287.661237][ T30] ? __rcu_read_unlock+0xa1/0x110 [ 287.666333][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.672299][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 287.678263][ T30] watchdog+0xff6/0x1040 [ 287.682578][ T30] ? watchdog+0x1ea/0x1040 [ 287.686978][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.691635][ T30] kthread+0x2f0/0x390 [ 287.695690][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.700441][ T30] ? __pfx_kthread+0x10/0x10 [ 287.705041][ T30] ret_from_fork+0x4b/0x80 [ 287.709473][ T30] ? __pfx_kthread+0x10/0x10 [ 287.714161][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.718943][ T30] [ 287.722126][ T30] Sending NMI from CPU 1 to CPUs 0: [ 287.727430][ C0] NMI backtrace for cpu 0 [ 287.727445][ C0] CPU: 0 UID: 0 PID: 35 Comm: kworker/u8:2 Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 287.727464][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 287.727474][ C0] Workqueue: events_unbound toggle_allocation_gate [ 287.727500][ C0] RIP: 0010:smp_call_function_many_cond+0x19f8/0x2c60 [ 287.727522][ C0] Code: 89 e6 83 e6 01 31 ff e8 56 e9 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 01 e5 0b 00 eb 38 f3 90 42 0f b6 04 23 <84> c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 e5 e4 0b 00 eb e4 44 [ 287.727535][ C0] RSP: 0018:ffffc90000ab76e0 EFLAGS: 00000293 [ 287.727548][ C0] RAX: 0000000000000000 RBX: 1ffff110170e88b9 RCX: ffff8880206f9e00 [ 287.727559][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 287.727569][ C0] RBP: ffffc90000ab78e0 R08: ffffffff81938e7a R09: 1ffffffff284e310 [ 287.727580][ C0] R10: dffffc0000000000 R11: fffffbfff284e311 R12: dffffc0000000000 [ 287.727592][ C0] R13: ffff8880b87445c8 R14: ffff8880b863f940 R15: 0000000000000001 [ 287.727603][ C0] FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 287.727616][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.727627][ C0] CR2: 000055a74a449600 CR3: 000000000e736000 CR4: 00000000003526f0 [ 287.727641][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.727650][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.727660][ C0] Call Trace: [ 287.727666][ C0] [ 287.727673][ C0] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 287.727690][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 287.727708][ C0] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.727724][ C0] ? nmi_handle+0x2a/0x5a0 [ 287.727747][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 287.727766][ C0] ? nmi_handle+0x14f/0x5a0 [ 287.727781][ C0] ? nmi_handle+0x2a/0x5a0 [ 287.727797][ C0] ? smp_call_function_many_cond+0x19f8/0x2c60 [ 287.727815][ C0] ? default_do_nmi+0x63/0x160 [ 287.727831][ C0] ? exc_nmi+0x123/0x1f0 [ 287.727846][ C0] ? end_repeat_nmi+0xf/0x53 [ 287.727863][ C0] ? smp_call_function_many_cond+0x19da/0x2c60 [ 287.727883][ C0] ? smp_call_function_many_cond+0x19f8/0x2c60 [ 287.727901][ C0] ? smp_call_function_many_cond+0x19f8/0x2c60 [ 287.727920][ C0] ? smp_call_function_many_cond+0x19f8/0x2c60 [ 287.727938][ C0] [ 287.727943][ C0] [ 287.727953][ C0] ? __pfx_do_sync_core+0x10/0x10 [ 287.727975][ C0] ? __pfx___text_poke+0x10/0x10 [ 287.727990][ C0] ? kmem_cache_alloc_bulk_noprof+0x156/0x7c0 [ 287.728009][ C0] ? __pfx_smp_call_function_many_cond+0x10/0x10 [ 287.728028][ C0] ? __pfx_perf_event_text_poke+0x10/0x10 [ 287.728043][ C0] ? __pfx___mutex_trylock_common+0x10/0x10 [ 287.728064][ C0] ? __pfx_do_sync_core+0x10/0x10 [ 287.728082][ C0] on_each_cpu_cond_mask+0x3f/0x80 [ 287.728100][ C0] text_poke_bp_batch+0x9ef/0xb30 [ 287.728129][ C0] ? kmem_cache_alloc_bulk_noprof+0x157/0x7c0 [ 287.728145][ C0] ? __pfx_text_poke_bp_batch+0x10/0x10 [ 287.728165][ C0] ? arch_jump_label_transform_queue+0x9b/0x100 [ 287.728188][ C0] ? process_scheduled_works+0x976/0x1840 [ 287.728209][ C0] text_poke_finish+0x30/0x50 [ 287.728225][ C0] arch_jump_label_transform_apply+0x1c/0x30 [ 287.728244][ C0] static_key_enable_cpuslocked+0x136/0x260 [ 287.728264][ C0] static_key_enable+0x1a/0x20 [ 287.728280][ C0] toggle_allocation_gate+0xbc/0x260 [ 287.728299][ C0] ? __pfx_toggle_allocation_gate+0x10/0x10 [ 287.728318][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 287.728340][ C0] process_scheduled_works+0xa66/0x1840 [ 287.728371][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 287.728394][ C0] ? assign_work+0x364/0x3d0 [ 287.728415][ C0] worker_thread+0x870/0xd30 [ 287.728433][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 287.728452][ C0] ? __kthread_parkme+0x169/0x1d0 [ 287.728469][ C0] ? __pfx_worker_thread+0x10/0x10 [ 287.728483][ C0] kthread+0x2f0/0x390 [ 287.728498][ C0] ? __pfx_worker_thread+0x10/0x10 [ 287.728511][ C0] ? __pfx_kthread+0x10/0x10 [ 287.728527][ C0] ret_from_fork+0x4b/0x80 [ 287.728541][ C0] ? __pfx_kthread+0x10/0x10 [ 287.728556][ C0] ret_from_fork_asm+0x1a/0x30 [ 287.728581][ C0] [ 287.728588][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.158 msecs [ 287.729471][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 288.158743][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 288.169237][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 288.179290][ T30] Call Trace: [ 288.182590][ T30] [ 288.185517][ T30] dump_stack_lvl+0x241/0x360 [ 288.190198][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 288.195399][ T30] ? __pfx__printk+0x10/0x10 [ 288.199990][ T30] ? vscnprintf+0x5d/0x90 [ 288.204369][ T30] panic+0x349/0x880 [ 288.208260][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 288.214408][ T30] ? __pfx_panic+0x10/0x10 [ 288.218827][ T30] ? preempt_schedule_thunk+0x1a/0x30 [ 288.224277][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 288.230422][ T30] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 288.236573][ T30] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 288.242734][ T30] watchdog+0x1035/0x1040 [ 288.247150][ T30] ? watchdog+0x1ea/0x1040 [ 288.251567][ T30] ? __pfx_watchdog+0x10/0x10 [ 288.256275][ T30] kthread+0x2f0/0x390 [ 288.260429][ T30] ? __pfx_watchdog+0x10/0x10 [ 288.265214][ T30] ? __pfx_kthread+0x10/0x10 [ 288.269828][ T30] ret_from_fork+0x4b/0x80 [ 288.274360][ T30] ? __pfx_kthread+0x10/0x10 [ 288.278958][ T30] ret_from_fork_asm+0x1a/0x30 [ 288.283730][ T30] [ 288.287002][ T30] Kernel Offset: disabled [ 288.291352][ T30] Rebooting in 86400 seconds..