./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3166024090 <...> Warning: Permanently added '10.128.10.60' (ED25519) to the list of known hosts. execve("./syz-executor3166024090", ["./syz-executor3166024090"], 0x7ffe7078d1d0 /* 10 vars */) = 0 brk(NULL) = 0x55555729c000 brk(0x55555729cd00) = 0x55555729cd00 arch_prctl(ARCH_SET_FS, 0x55555729c380) = 0 set_tid_address(0x55555729c650) = 5846 set_robust_list(0x55555729c660, 24) = 0 rseq(0x55555729cca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3166024090", 4096) = 28 getrandom("\x30\xbd\x59\xfb\xbb\xc8\x1e\x75", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555729cd00 brk(0x5555572bdd00) = 0x5555572bdd00 brk(0x5555572be000) = 0x5555572be000 mprotect(0x7f5a61413000, 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.Ej61EH", 0700) = 0 chmod("./syzkaller.Ej61EH", 0777) = 0 chdir("./syzkaller.Ej61EH") = 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 5847 attached [pid 5847] set_robust_list(0x55555729c660, 24) = 0 [pid 5847] chdir("./0" [pid 5846] <... clone resumed>, child_tidptr=0x55555729c650) = 5847 [pid 5847] <... chdir resumed>) = 0 [pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5847] setpgid(0, 0) = 0 [pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "1000", 4) = 4 [pid 5847] close(3) = 0 [pid 5847] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5847] write(1, "executing program\n", 18executing program ) = 18 [pid 5847] memfd_create("syzkaller", 0) = 3 [pid 5847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a58e00000 [pid 5847] 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 5847] munmap(0x7f5a58e00000, 138412032) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5847] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5847] close(3) = 0 [pid 5847] close(4) = 0 [pid 5847] mkdir("./file0", 0777) = 0 [ 250.524939][ T5847] loop0: detected capacity change from 0 to 32768 [ 250.631120][ T5847] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 250.646712][ T5847] bcachefs (loop0): recovering from clean shutdown, journal seq 13 [ 250.668886][ T5847] bcachefs (loop0): accounting_read... done [ 250.676500][ T5847] bcachefs (loop0): alloc_read... done [ 250.682257][ T5847] bcachefs (loop0): stripes_read... done [ 250.688008][ T5847] bcachefs (loop0): snapshots_read... done [ 250.696893][ T5847] bcachefs (loop0): journal_replay... done [ 250.703121][ T5847] bcachefs (loop0): resume_logged_ops... done [ 250.709335][ T5847] bcachefs (loop0): delete_dead_inodes... done [ 250.718975][ T5847] bcachefs (loop0): going read-write [pid 5847] 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 5847] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5847] chdir("./file0") = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 250.728157][ T5847] bcachefs (loop0): done starting filesystem [pid 5847] ioctl(4, LOOP_CLR_FD) = 0 [pid 5847] close(4) = 0 [pid 5847] exit_group(0) = ? [pid 5847] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5847, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=28 /* 0.28 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, 0x55555729d6f0 /* 4 entries */, 32768) = 112 [ 250.778303][ T5847] syz-executor316 (5847) used greatest stack depth: 17328 bytes left 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 [ 250.876042][ T5846] bcachefs (loop0): shutting down [ 250.881401][ T5846] bcachefs (loop0): going read-only [ 250.886828][ T5846] bcachefs (loop0): finished waiting for writes to stop [ 281.061722][ T5857] Allocator stuck? Waited for 30 seconds [ 281.061739][ T5857] Allocator debug: [ 281.061746][ T5857] capacity1536 [ 281.061753][ T5857] reserved 31232 [ 281.061761][ T5857] hidden 0 [ 281.061768][ T5857] btree 0 [ 281.061776][ T5857] data 0 [ 281.061785][ T5857] cached 0 [ 281.061792][ T5857] reserved 0 [ 281.061800][ T5857] online_reserved 24 [ 281.061807][ T5857] nr_inodes 0 [ 281.061814][ T5857] [ 281.061821][ T5857] freelist_wait waiting [ 281.061828][ T5857] open buckets allocated1 [ 281.061835][ T5857] open buckets total 1024 [ 281.061843][ T5857] open_buckets_wait empty [ 281.061850][ T5857] open_buckets_btree 0 [ 281.061857][ T5857] open_buckets_user 0 [ 281.061864][ T5857] btree reserve cache 0 [ 281.061871][ T5857] [ 281.061878][ T5857] Dev 0: [ 281.061884][ T5857] buckets sectors fragmented [ 281.061893][ T5857] free 0 0 0 [ 281.061902][ T5857] sb 0 0 0 [ 281.061910][ T5857] journal 0 0 0 [ 281.061919][ T5857] btree 0 0 0 [ 281.061928][ T5857] user 0 0 0 [ 281.061936][ T5857] cached 0 0 0 [ 281.061945][ T5857] parity 0 0 0 [ 281.061953][ T5857] stripe 0 0 0 [ 281.061962][ T5857] need_gc_gens 0 0 0 [ 281.061971][ T5857] need_discard 0 0 0 [ 281.061979][ T5857] unstriped 0 0 0 [ 281.061988][ T5857] capacity 128 [ 281.061995][ T5857] [ 281.062002][ T5857] reserves: [ 281.062008][ T5857] stripe 60 [ 281.062016][ T5857] normal 58 [ 281.062023][ T5857] copygc 56 [ 281.062037][ T5857] btree 28 [ 281.062045][ T5857] btree_copygc 0 [ 281.062052][ T5857] reclaim 0 [ 281.062059][ T5857] interior_updates 0 [ 281.062067][ T5857] [ 281.062073][ T5857] open buckets 0 [ 281.062080][ T5857] buckets to invalidate 0 [ 281.062088][ T5857] [ 281.062094][ T5857] Copygc debug: [ 281.062101][ T5857] running: 0 [ 281.062107][ T5857] copygc_wait:0 [ 281.062114][ T5857] copygc_wait_at:0 [ 281.062122][ T5857] Currently waiting for:0 B [ 281.062129][ T5857] Currently waiting since:640 KiB [ 281.062137][ T5857] Currently calculated wait:0 B [ 281.062144][ T5857] [ 281.062151][ T5857] Journal debug: [ 281.062158][ T5857] flags: replay_done,running,may_skip_flush,need_flush_write [ 281.062167][ T5857] dirty journal entries: 0/32768 [ 281.062174][ T5857] seq: 13 [ 281.062182][ T5857] seq_ondisk: 13 [ 281.062189][ T5857] last_seq: 14 [ 281.062197][ T5857] last_seq_ondisk: 14 [ 281.062204][ T5857] flushed_seq_ondisk: 13 [ 281.062211][ T5857] watermark: stripe [ 281.062219][ T5857] each entry reserved: 321 [ 281.062226][ T5857] nr flush writes: 0 [ 281.062234][ T5857] nr noflush writes: 0 [ 281.062241][ T5857] average write size: 0 B [ 281.062248][ T5857] nr direct reclaim: 0 [ 281.062256][ T5857] nr background reclaim: 0 [ 281.062263][ T5857] reclaim kicked: 0 [ 281.062270][ T5857] reclaim runs in: 0 ms [ 281.062278][ T5857] blocked: 0 [ 281.062287][ T5857] current entry sectors: 256 [ 281.062294][ T5857] current entry error: ok [ 281.062302][ T5857] current entry: closed [ 281.062309][ T5857] unwritten entries: [ 281.062316][ T5857] last buf closed [ 281.062323][ T5857] space: [ 281.062330][ T5857] discarded 256:1792 [ 281.062337][ T5857] clean ondisk 256:1792 [ 281.062345][ T5857] clean 256:1792 [ 281.062352][ T5857] total 256:2048 [ 281.062360][ T5857] dev 0: [ 281.062366][ T5857] nr 8 [ 281.062374][ T5857] bucket size 256 [ 281.062381][ T5857] available 6:256 [ 281.062388][ T5857] discard_idx 0 [ 281.062396][ T5857] dirty_ondisk 0 (seq 0) [ 281.062403][ T5857] dirty_idx 0 (seq 0) [ 281.062411][ T5857] cur_idx 0 (seq 0) [ 281.062419][ T5857] [ 430.171164][ T30] INFO: task syz-executor316:5846 blocked for more than 143 seconds. [ 430.179422][ T30] Not tainted 6.13.0-rc6-syzkaller-00006-g5428dc1906dd #0 [ 430.187277][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.196070][ T30] task:syz-executor316 state:D stack:23840 pid:5846 tgid:5846 ppid:5843 flags:0x00004002 [ 430.206407][ T30] Call Trace: [ 430.209725][ T30] [ 430.212728][ T30] __schedule+0x17fb/0x4be0 [ 430.217328][ T30] ? __pfx___schedule+0x10/0x10 [ 430.222254][ T30] ? __pfx_lock_release+0x10/0x10 [ 430.227363][ T30] ? schedule+0x90/0x320 [ 430.231711][ T30] schedule+0x14b/0x320 [ 430.235920][ T30] schedule_timeout+0xb0/0x290 [ 430.240705][ T30] ? __pfx_schedule_timeout+0x10/0x10 [ 430.246167][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 430.252344][ T30] ? wait_for_completion+0x2fe/0x620 [ 430.257684][ T30] ? wait_for_completion+0x2fe/0x620 [ 430.263050][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 430.268287][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 430.273568][ T30] ? wait_for_completion+0x2fe/0x620 [ 430.278900][ T30] wait_for_completion+0x355/0x620 [ 430.284161][ T30] ? __pfx_wait_for_completion+0x10/0x10 [ 430.289861][ T30] ? synchronize_rcu+0x11b/0x360 [ 430.294905][ T30] ? kthread_unpark+0xd0/0x290 [ 430.299710][ T30] kthread_stop+0x19e/0x640 [ 430.304305][ T30] bch2_copygc_stop+0x4f/0x150 [ 430.309111][ T30] __bch2_fs_read_only+0x47/0x450 [ 430.314235][ T30] bch2_fs_read_only+0xb57/0x1200 [ 430.319315][ T30] ? __pfx_bch2_fs_read_only+0x10/0x10 [ 430.324878][ T30] ? __bch2_print+0x17a/0x220 [ 430.329608][ T30] ? down_write+0x18c/0x220 [ 430.334211][ T30] ? __pfx_down_write+0x10/0x10 [ 430.339112][ T30] ? hook_sb_delete+0xaa0/0xbd0 [ 430.344059][ T30] __bch2_fs_stop+0x105/0x5c0 [ 430.348779][ T30] ? __pfx___bch2_fs_stop+0x10/0x10 [ 430.354098][ T30] ? __pfx_evict_inodes+0x10/0x10 [ 430.359207][ T30] ? bch2_sync_fs+0x155/0x300 [ 430.363974][ T30] ? __pfx_bch2_put_super+0x10/0x10 [ 430.369243][ T30] generic_shutdown_super+0x139/0x2d0 [ 430.374708][ T30] bch2_kill_sb+0x41/0x50 [ 430.379109][ T30] deactivate_locked_super+0xc4/0x130 [ 430.384600][ T30] cleanup_mnt+0x41f/0x4b0 [ 430.389060][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 430.394395][ T30] task_work_run+0x24f/0x310 [ 430.399034][ T30] ? __pfx_task_work_run+0x10/0x10 [ 430.404236][ T30] ? path_umount+0x284/0xf70 [ 430.408874][ T30] ptrace_notify+0x2d2/0x380 [ 430.413598][ T30] ? __pfx_ptrace_notify+0x10/0x10 [ 430.418776][ T30] ? kmem_cache_free+0x195/0x410 [ 430.423808][ T30] ? __x64_sys_umount+0x123/0x170 [ 430.428877][ T30] syscall_exit_work+0xc7/0x1d0 [ 430.433803][ T30] syscall_exit_to_user_mode+0x24a/0x340 [ 430.439480][ T30] do_syscall_64+0x100/0x230 [ 430.444151][ T30] ? clear_bhb_loop+0x35/0x90 [ 430.449033][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.455052][ T30] RIP: 0033:0x7f5a61391347 [ 430.459519][ T30] RSP: 002b:00007ffe32cff718 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 430.468070][ T30] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f5a61391347 [ 430.476160][ T30] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe32cff7d0 [ 430.484233][ T30] RBP: 00007ffe32cff7d0 R08: 0000000000000000 R09: 0000000000000000 [ 430.492295][ T30] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffe32d00830 [ 430.500304][ T30] R13: 000055555729d6c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 430.508401][ T30] [ 430.511496][ T30] INFO: task bch-copygc/loop:5857 blocked for more than 143 seconds. [ 430.519585][ T30] Not tainted 6.13.0-rc6-syzkaller-00006-g5428dc1906dd #0 [ 430.527298][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.536061][ T30] task:bch-copygc/loop state:D stack:20080 pid:5857 tgid:5857 ppid:2 flags:0x00024000 [ 430.546316][ T30] Call Trace: [ 430.549624][ T30] [ 430.552695][ T30] __schedule+0x17fb/0x4be0 [ 430.557248][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 430.563319][ T30] ? __pfx___schedule+0x10/0x10 [ 430.568213][ T30] ? __pfx_lock_release+0x10/0x10 [ 430.573317][ T30] ? bch2_print_allocator_stuck+0x165/0xcb0 [ 430.579252][ T30] ? bch2_print_allocator_stuck+0xc24/0xcb0 [ 430.585266][ T30] ? schedule+0x90/0x320 [ 430.589553][ T30] schedule+0x14b/0x320 [ 430.593830][ T30] __closure_sync+0x259/0x2f0 [ 430.598561][ T30] ? __closure_sync+0x149/0x2f0 [ 430.603605][ T30] ? __pfx___closure_sync+0x10/0x10 [ 430.608860][ T30] ? __bch2_wait_on_allocator+0x1d6/0x250 [ 430.614709][ T30] __bch2_write+0x562a/0x5dd0 [ 430.619456][ T30] ? __pfx_validate_chain+0x10/0x10 [ 430.624797][ T30] ? mark_lock+0x9a/0x360 [ 430.629169][ T30] ? __pfx___bch2_write+0x10/0x10 [ 430.634286][ T30] ? __pfx_validate_chain+0x10/0x10 [ 430.639527][ T30] ? __pfx_validate_chain+0x10/0x10 [ 430.644855][ T30] ? __lock_acquire+0x1397/0x2100 [ 430.649939][ T30] bch2_write+0x9b5/0x1760 [ 430.654442][ T30] ? mark_lock+0x9a/0x360 [ 430.658962][ T30] ? __pfx_bch2_write+0x10/0x10 [ 430.663908][ T30] ? bch2_data_update_read_done+0xfd/0x330 [ 430.669773][ T30] bch2_data_update_read_done+0x22e/0x330 [ 430.675577][ T30] ? __pfx_bch2_data_update_read_done+0x10/0x10 [ 430.681951][ T30] ? bch2_trans_srcu_unlock+0x57/0x5c0 [ 430.687442][ T30] bch2_moving_ctxt_do_pending_writes+0x44c/0x8d0 [ 430.693943][ T30] ? __pfx_bch2_moving_ctxt_do_pending_writes+0x10/0x10 [ 430.700977][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 430.706890][ T30] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 430.713299][ T30] ? finish_wait+0xd4/0x1e0 [ 430.717843][ T30] move_buckets_wait+0x2ba/0x1290 [ 430.723005][ T30] ? __pfx_move_buckets_wait+0x10/0x10 [ 430.728510][ T30] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 430.734240][ T30] ? __pfx_autoremove_wake_function+0x10/0x10 [ 430.740356][ T30] ? bch2_get_next_online_dev+0x4b9/0x4f0 [ 430.746190][ T30] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 430.751940][ T30] bch2_copygc_thread+0x83f/0xc10 [ 430.756994][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 430.762595][ T30] ? bch2_copygc_thread+0x1a1/0xc10 [ 430.767855][ T30] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 430.773847][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 430.779097][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 430.785083][ T30] ? __kthread_parkme+0x169/0x1d0 [ 430.790147][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 430.795805][ T30] kthread+0x2f0/0x390 [ 430.799928][ T30] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 430.805611][ T30] ? __pfx_kthread+0x10/0x10 [ 430.810258][ T30] ret_from_fork+0x4b/0x80 [ 430.814842][ T30] ? __pfx_kthread+0x10/0x10 [ 430.819515][ T30] ret_from_fork_asm+0x1a/0x30 [ 430.824376][ T30] [ 430.827429][ T30] [ 430.827429][ T30] Showing all locks held in the system: [ 430.835242][ T30] 1 lock held by khungtaskd/30: [ 430.840122][ T30] #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 [ 430.850142][ T30] 2 locks held by getty/5579: [ 430.854905][ T30] #0: ffff888035a4a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 430.864797][ T30] #1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 [ 430.875016][ T30] 2 locks held by syz-executor316/5846: [ 430.880603][ T30] #0: ffff88802d5be0e0 (&type->s_umount_key#43){+.+.}-{4:4}, at: deactivate_super+0xb5/0xf0 [ 430.890945][ T30] #1: ffff888076080278 (&c->state_lock){+.+.}-{4:4}, at: __bch2_fs_stop+0xfd/0x5c0 [ 430.900423][ T30] [ 430.902833][ T30] ============================================= [ 430.902833][ T30] [ 430.911344][ T30] NMI backtrace for cpu 0 [ 430.915687][ T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc6-syzkaller-00006-g5428dc1906dd #0 [ 430.926189][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 430.936265][ T30] Call Trace: [ 430.939550][ T30] [ 430.942485][ T30] dump_stack_lvl+0x241/0x360 [ 430.947265][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.952475][ T30] ? __pfx__printk+0x10/0x10 [ 430.957109][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 430.962069][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 430.967537][ T30] ? _printk+0xd5/0x120 [ 430.971700][ T30] ? __pfx__printk+0x10/0x10 [ 430.976298][ T30] ? __wake_up_klogd+0xcc/0x110 [ 430.981160][ T30] ? __pfx__printk+0x10/0x10 [ 430.985786][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.991795][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 430.997822][ T30] watchdog+0xff6/0x1040 [ 431.002100][ T30] ? watchdog+0x1ea/0x1040 [ 431.006551][ T30] ? __pfx_watchdog+0x10/0x10 [ 431.011275][ T30] kthread+0x2f0/0x390 [ 431.015356][ T30] ? __pfx_watchdog+0x10/0x10 [ 431.020045][ T30] ? __pfx_kthread+0x10/0x10 [ 431.024643][ T30] ret_from_fork+0x4b/0x80 [ 431.029067][ T30] ? __pfx_kthread+0x10/0x10 [ 431.033663][ T30] ret_from_fork_asm+0x1a/0x30 [ 431.038449][ T30] [ 431.041690][ T30] Sending NMI from CPU 0 to CPUs 1: [ 431.046963][ C1] NMI backtrace for cpu 1 [ 431.046979][ C1] CPU: 1 UID: 0 PID: 69 Comm: kworker/u8:4 Not tainted 6.13.0-rc6-syzkaller-00006-g5428dc1906dd #0 [ 431.047000][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 431.047012][ C1] Workqueue: events_unbound toggle_allocation_gate [ 431.047045][ C1] RIP: 0010:mark_lock+0x6c/0x360 [ 431.047069][ C1] Code: 40 0f 94 c5 83 f5 09 eb 0b 89 d5 83 fa 20 0f 83 e3 02 00 00 41 be 01 00 00 00 89 e9 41 d3 e6 49 8d 5f 20 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 3a 02 00 00 8b 1b 81 e3 ff 1f 00 00 48 [ 431.047084][ C1] RSP: 0018:ffffc9000213f638 EFLAGS: 00000806 [ 431.047098][ C1] RAX: 1ffff110040d2cb4 RBX: ffff8880206965a0 RCX: 0000000000000006 [ 431.047112][ C1] RDX: 0000000000000006 RSI: ffff888020696580 RDI: ffff888020695a00 [ 431.047124][ C1] RBP: 0000000000000006 R08: ffffffff94271887 R09: 1ffffffff284e310 [ 431.047138][ C1] R10: dffffc0000000000 R11: fffffbfff284e311 R12: ffff8880206965a0 [ 431.047151][ C1] R13: dffffc0000000000 R14: 0000000000000040 R15: ffff888020696580 [ 431.047164][ C1] FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 431.047179][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 431.047191][ C1] CR2: 000055f2ba612600 CR3: 000000000e736000 CR4: 00000000003526f0 [ 431.047207][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 431.047218][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 431.047229][ C1] Call Trace: [ 431.047236][ C1] [ 431.047244][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 431.047266][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 431.047285][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 431.047312][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 431.047338][ C1] ? nmi_handle+0x14f/0x5a0 [ 431.047358][ C1] ? nmi_handle+0x2a/0x5a0 [ 431.047383][ C1] ? mark_lock+0x6c/0x360 [ 431.047403][ C1] ? default_do_nmi+0x63/0x160 [ 431.047422][ C1] ? exc_nmi+0x123/0x1f0 [ 431.047441][ C1] ? end_repeat_nmi+0xf/0x53 [ 431.047461][ C1] ? mark_lock+0x6c/0x360 [ 431.047481][ C1] ? mark_lock+0x6c/0x360 [ 431.047501][ C1] ? mark_lock+0x6c/0x360 [ 431.047521][ C1] [ 431.047526][ C1] [ 431.047535][ C1] lockdep_hardirqs_on_prepare+0x3a5/0x780 [ 431.047555][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 431.047574][ C1] ? text_poke_memcpy+0x25/0x30 [ 431.047597][ C1] ? kmem_cache_alloc_bulk_noprof+0x157/0x7c0 [ 431.047615][ C1] ? rcu_is_watching+0x15/0xb0 [ 431.047638][ C1] ? kmem_cache_alloc_bulk_noprof+0x157/0x7c0 [ 431.047657][ C1] trace_hardirqs_on+0x28/0x40 [ 431.047673][ C1] __text_poke+0x9bf/0xd30 [ 431.047696][ C1] ? kmem_cache_alloc_bulk_noprof+0x157/0x7c0 [ 431.047715][ C1] ? __pfx_text_poke_memcpy+0x10/0x10 [ 431.047738][ C1] ? __pfx___text_poke+0x10/0x10 [ 431.047759][ C1] ? __kmalloc_cache_node_noprof+0x8c/0x3a0 [ 431.047777][ C1] ? perf_event_text_poke+0x258/0x330 [ 431.047798][ C1] ? __pfx_perf_event_text_poke+0x10/0x10 [ 431.047817][ C1] ? __pfx___mutex_trylock_common+0x10/0x10 [ 431.047845][ C1] text_poke_bp_batch+0x59c/0xb30 [ 431.047872][ C1] ? kmem_cache_alloc_bulk_noprof+0x157/0x7c0 [ 431.047891][ C1] ? __pfx_text_poke_bp_batch+0x10/0x10 [ 431.047917][ C1] ? arch_jump_label_transform_queue+0x9b/0x100 [ 431.047945][ C1] ? process_scheduled_works+0x976/0x1840 [ 431.047972][ C1] text_poke_finish+0x30/0x50 [ 431.047994][ C1] arch_jump_label_transform_apply+0x1c/0x30 [ 431.048020][ C1] static_key_enable_cpuslocked+0x136/0x260 [ 431.048045][ C1] static_key_enable+0x1a/0x20 [ 431.048067][ C1] toggle_allocation_gate+0xbc/0x260 [ 431.048093][ C1] ? __pfx_toggle_allocation_gate+0x10/0x10 [ 431.048119][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 431.048144][ C1] process_scheduled_works+0xa66/0x1840 [ 431.048181][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 431.048211][ C1] ? assign_work+0x364/0x3d0 [ 431.048238][ C1] worker_thread+0x870/0xd30 [ 431.048258][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 431.048282][ C1] ? __kthread_parkme+0x169/0x1d0 [ 431.048300][ C1] ? __pfx_worker_thread+0x10/0x10 [ 431.048316][ C1] kthread+0x2f0/0x390 [ 431.048335][ C1] ? __pfx_worker_thread+0x10/0x10 [ 431.048351][ C1] ? __pfx_kthread+0x10/0x10 [ 431.048371][ C1] ret_from_fork+0x4b/0x80 [ 431.048392][ C1] ? __pfx_kthread+0x10/0x10 [ 431.048411][ C1] ret_from_fork_asm+0x1a/0x30 [ 431.048442][ C1] [ 431.048450][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.488 msecs [ 431.048970][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 431.048987][ T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc6-syzkaller-00006-g5428dc1906dd #0 [ 431.049015][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 431.049029][ T30] Call Trace: [ 431.049038][ T30] [ 431.049048][ T30] dump_stack_lvl+0x241/0x360 [ 431.049084][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 431.049115][ T30] ? __pfx__printk+0x10/0x10 [ 431.049147][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 431.049181][ T30] ? vscnprintf+0x5d/0x90 [ 431.049210][ T30] panic+0x349/0x880 [ 431.049239][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 431.049269][ T30] ? __pfx_panic+0x10/0x10 [ 431.049294][ T30] ? tick_nohz_tick_stopped+0x82/0xb0 [ 431.049328][ T30] ? __irq_work_queue_local+0x137/0x410 [ 431.049356][ T30] ? irq_work_queue+0xca/0x150 [ 431.049379][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 431.049415][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 431.049449][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 431.049483][ T30] ? nmi_trigger_cpumask_backtrace+0x251/0x320 [ 431.049515][ T30] watchdog+0x1035/0x1040 [ 431.049543][ T30] ? watchdog+0x1ea/0x1040 [ 431.049574][ T30] ? __pfx_watchdog+0x10/0x10 [ 431.049598][ T30] kthread+0x2f0/0x390 [ 431.049625][ T30] ? __pfx_watchdog+0x10/0x10 [ 431.049648][ T30] ? __pfx_kthread+0x10/0x10 [ 431.049676][ T30] ret_from_fork+0x4b/0x80 [ 431.049697][ T30] ? __pfx_kthread+0x10/0x10 [ 431.049724][ T30] ret_from_fork_asm+0x1a/0x30 [ 431.049771][ T30] [ 431.644558][ T30] Kernel Offset: disabled [ 431.648909][ T30] Rebooting in 86400 seconds..