./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1213844490 <...> Warning: Permanently added '10.128.0.185' (ED25519) to the list of known hosts. execve("./syz-executor1213844490", ["./syz-executor1213844490"], 0x7ffe459e42c0 /* 10 vars */) = 0 brk(NULL) = 0x55557c9c6000 brk(0x55557c9c6d00) = 0x55557c9c6d00 arch_prctl(ARCH_SET_FS, 0x55557c9c6380) = 0 set_tid_address(0x55557c9c6650) = 5832 set_robust_list(0x55557c9c6660, 24) = 0 rseq(0x55557c9c6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1213844490", 4096) = 28 getrandom("\x74\xce\x14\x5e\xad\xe8\x8d\xa9", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557c9c6d00 brk(0x55557c9e7d00) = 0x55557c9e7d00 brk(0x55557c9e8000) = 0x55557c9e8000 mprotect(0x7f710c969000, 16384, PROT_READ) = 0 mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000 mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000 mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000 mount(NULL, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, NULL) = -1 EBUSY (Device or resource busy) openat(AT_FDCWD, "/proc/sys/fs/binfmt_misc/register", O_WRONLY|O_CLOEXEC) = 3 write(3, "\x3a\x73\x79\x7a\x30\x3a\x4d\x3a\x30\x3a\x01\x3a\x3a\x2e\x2f\x66\x69\x6c\x65\x30\x3a", 21) = 21 close(3) = 0 openat(AT_FDCWD, "/proc/sys/fs/binfmt_misc/register", O_WRONLY|O_CLOEXEC) = 3 write(3, "\x3a\x73\x79\x7a\x31\x3a\x4d\x3a\x31\x3a\x02\x3a\x3a\x2e\x2f\x66\x69\x6c\x65\x30\x3a\x50\x4f\x43", 24) = 24 close(3) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5833 attached [pid 5833] set_robust_list(0x55557c9c6660, 24 [pid 5832] <... clone resumed>, child_tidptr=0x55557c9c6650) = 5833 [pid 5833] <... set_robust_list resumed>) = 0 [pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5833] getppid() = 0 [pid 5833] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5833] unshare(CLONE_NEWNS) = 0 [pid 5833] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5833] unshare(CLONE_NEWIPC) = 0 [pid 5833] unshare(CLONE_NEWCGROUP) = 0 [pid 5833] unshare(CLONE_NEWUTS) = 0 [pid 5833] unshare(CLONE_SYSVSEM) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "16777216", 8) = 8 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "536870912", 9) = 9 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1024", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "8192", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1024", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1024", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5833] close(3) = 0 [pid 5833] getpid() = 1 [pid 5833] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5843] set_robust_list(0x55557c9c6660, 24 [pid 5833] <... clone resumed>, child_tidptr=0x55557c9c6650) = 2 [pid 5843] <... set_robust_list resumed>) = 0 [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5843] setpgid(0, 0) = 0 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5843] write(3, "1000", 4) = 4 [pid 5843] close(3) = 0 executing program [pid 5843] write(1, "executing program\n", 18) = 18 [pid 5843] socket(AF_PACKET, SOCK_RAW, htons(0 /* ETH_P_??? */)) = 3 [pid 5843] ioctl(3, SIOCGIFINDEX, {ifr_name="team0", ifr_ifindex=15}) = 0 [pid 5843] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [ 82.286360][ C1] hrtimer: interrupt took 687378901 ns [ 82.297446][ T973] cfg80211: failed to load regulatory.db [pid 5843] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xac\x00\x00\x00\x24\x00\x0b\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x12\x00\x0f\x00\x00\x00\x00\x00\xf2\xff\xff\xff\xff\xff\x00\x00\x00\x00\x0b\x00\x01\x00\x74\x61\x70\x72\x69\x6f\x00\x00\x7c\x00\x02\x00\x56\x00\x01\x00\x02\x00\x00\x00\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfe\xff\x00\x00\x00\x00\x02\x04"..., iov_len=172}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_PROBE) = 172 [pid 5843] close(3) = 0 [pid 5843] close(4) = 0 [pid 5843] close(5) = -1 EBADF (Bad file descriptor) [pid 5843] close(6) = -1 EBADF (Bad file descriptor) [pid 5843] close(7) = -1 EBADF (Bad file descriptor) [pid 5843] close(8) = -1 EBADF (Bad file descriptor) [pid 5843] close(9) = -1 EBADF (Bad file descriptor) [pid 5843] close(10) = -1 EBADF (Bad file descriptor) [pid 5843] close(11) = -1 EBADF (Bad file descriptor) [pid 5843] close(12) = -1 EBADF (Bad file descriptor) [pid 5843] close(13) = -1 EBADF (Bad file descriptor) [pid 5843] close(14) = -1 EBADF (Bad file descriptor) [pid 5843] close(15) = -1 EBADF (Bad file descriptor) [pid 5843] close(16) = -1 EBADF (Bad file descriptor) [pid 5843] close(17) = -1 EBADF (Bad file descriptor) [pid 5843] close(18) = -1 EBADF (Bad file descriptor) [pid 5843] close(19) = -1 EBADF (Bad file descriptor) [pid 5843] close(20) = -1 EBADF (Bad file descriptor) [pid 5843] close(21) = -1 EBADF (Bad file descriptor) [pid 5843] close(22) = -1 EBADF (Bad file descriptor) [pid 5843] close(23) = -1 EBADF (Bad file descriptor) [pid 5843] close(24) = -1 EBADF (Bad file descriptor) [pid 5843] close(25) = -1 EBADF (Bad file descriptor) [pid 5843] close(26) = -1 EBADF (Bad file descriptor) [pid 5843] close(27) = -1 EBADF (Bad file descriptor) [pid 5843] close(28) = -1 EBADF (Bad file descriptor) [pid 5843] close(29) = -1 EBADF (Bad file descriptor) [pid 5843] exit_group(0) = ? [pid 5843] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5845 attached [pid 5845] set_robust_list(0x55557c9c6660, 24) = 0 [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5833] <... clone resumed>, child_tidptr=0x55557c9c6650) = 3 [pid 5845] <... prctl resumed>) = 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] socket(AF_PACKET, SOCK_RAW, htons(0 /* ETH_P_??? */)) = 3 [pid 5845] ioctl(3, SIOCGIFINDEX, {ifr_name="team0", ifr_ifindex=15}) = 0 [pid 5845] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5845] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xac\x00\x00\x00\x24\x00\x0b\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x12\x00\x0f\x00\x00\x00\x00\x00\xf2\xff\xff\xff\xff\xff\x00\x00\x00\x00\x0b\x00\x01\x00\x74\x61\x70\x72\x69\x6f\x00\x00\x7c\x00\x02\x00\x56\x00\x01\x00\x02\x00\x00\x00\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfe\xff\x00\x00\x00\x00\x02\x04"..., iov_len=172}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_PROBE) = 172 [pid 5845] close(3) = 0 [pid 5845] close(4) = 0 [pid 5845] close(5) = -1 EBADF (Bad file descriptor) [pid 5845] close(6) = -1 EBADF (Bad file descriptor) [pid 5845] close(7) = -1 EBADF (Bad file descriptor) [pid 5845] close(8) = -1 EBADF (Bad file descriptor) [pid 5845] close(9) = -1 EBADF (Bad file descriptor) [pid 5845] close(10) = -1 EBADF (Bad file descriptor) [pid 5845] close(11) = -1 EBADF (Bad file descriptor) [pid 5845] close(12) = -1 EBADF (Bad file descriptor) [pid 5845] close(13) = -1 EBADF (Bad file descriptor) [pid 5845] close(14) = -1 EBADF (Bad file descriptor) [pid 5845] close(15) = -1 EBADF (Bad file descriptor) [pid 5845] close(16) = -1 EBADF (Bad file descriptor) [ 187.338078][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 187.345152][ C0] rcu: 1-...!: (2 ticks this GP) idle=0a7c/0/0x1 softirq=11199/11199 fqs=0 [ 187.354368][ C0] rcu: (detected by 0, t=10502 jiffies, g=8593, q=198 ncpus=2) [ 187.362055][ C0] Sending NMI from CPU 0 to CPUs 1: [ 187.362099][ C1] NMI backtrace for cpu 1 [ 187.362124][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.14.0-rc4-syzkaller-00177-ga466fd7e9faf #0 [ 187.362140][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 187.362159][ C1] RIP: 0010:kasan_check_range+0x1b/0x290 [ 187.362201][ C1] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 55 41 57 41 56 41 54 53 b0 01 48 85 f6 0f 84 a0 01 00 00 4c 8d 04 37 <49> 39 f8 0f 82 56 02 00 00 48 89 fd 48 c1 ed 2f 81 fd fe ff 01 00 [ 187.362212][ C1] RSP: 0018:ffffc90000a185f0 EFLAGS: 00000002 [ 187.362232][ C1] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff819d6d2e [ 187.362241][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff94549840 [ 187.362255][ C1] RBP: ffffc90000a18920 R08: ffffffff94549848 R09: 1ffffffff28a9308 [ 187.362267][ C1] R10: dffffc0000000000 R11: fffffbfff28a9309 R12: dffffc0000000000 [ 187.362277][ C1] R13: ffff88801da88b38 R14: 97064f26aa3bd169 R15: 0000000000000000 [ 187.362288][ C1] FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 187.362299][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 187.362309][ C1] CR2: 0000400000000500 CR3: 00000000342a6000 CR4: 00000000003526f0 [ 187.362322][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 187.362331][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 187.362340][ C1] Call Trace: [ 187.362347][ C1] [ 187.362360][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 187.362382][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 187.362404][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 187.362425][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 187.362443][ C1] ? nmi_handle+0x14f/0x5a0 [ 187.362465][ C1] ? nmi_handle+0x2a/0x5a0 [ 187.362486][ C1] ? kasan_check_range+0x1b/0x290 [ 187.362502][ C1] ? default_do_nmi+0x63/0x160 [ 187.362517][ C1] ? exc_nmi+0x123/0x1f0 [ 187.362531][ C1] ? end_repeat_nmi+0xf/0x53 [ 187.362553][ C1] ? validate_chain+0x11e/0x5920 [ 187.362569][ C1] ? kasan_check_range+0x1b/0x290 [ 187.362586][ C1] ? kasan_check_range+0x1b/0x290 [ 187.362604][ C1] ? kasan_check_range+0x1b/0x290 [ 187.362621][ C1] [ 187.362625][ C1] [ 187.362631][ C1] validate_chain+0x11e/0x5920 [ 187.362647][ C1] ? common_startup_64+0x13e/0x147 [ 187.362664][ C1] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 187.362682][ C1] ? arch_stack_walk+0x11c/0x150 [ 187.362696][ C1] ? __pfx_validate_chain+0x10/0x10 [ 187.362711][ C1] ? validate_chain+0x11e/0x5920 [ 187.362725][ C1] ? common_startup_64+0x13e/0x147 [ 187.362739][ C1] ? __pfx_validate_chain+0x10/0x10 [ 187.362753][ C1] ? validate_chain+0x11e/0x5920 [ 187.362769][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 187.362789][ C1] ? __pfx_validate_chain+0x10/0x10 [ 187.362805][ C1] ? __pfx_validate_chain+0x10/0x10 [ 187.362821][ C1] ? mark_lock+0x9a/0x360 [ 187.362835][ C1] ? mark_lock+0x9a/0x360 [ 187.362849][ C1] __lock_acquire+0x1397/0x2100 [ 187.362875][ C1] lock_acquire+0x1ed/0x550 [ 187.362894][ C1] ? debug_object_deactivate+0x158/0x390 [ 187.362921][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 187.362943][ C1] ? do_raw_spin_unlock+0x13c/0x8b0 [ 187.362962][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 187.362980][ C1] _raw_spin_lock_irqsave+0xd5/0x120 [ 187.362996][ C1] ? debug_object_deactivate+0x158/0x390 [ 187.363015][ C1] ? __pfx__raw_spin_lock_irqsave+0x10/0x10 [ 187.363035][ C1] debug_object_deactivate+0x158/0x390 [ 187.363055][ C1] ? advance_sched+0xa02/0xca0 [ 187.363070][ C1] ? __pfx_debug_object_deactivate+0x10/0x10 [ 187.363095][ C1] debug_deactivate+0x1b/0x220 [ 187.363112][ C1] __hrtimer_run_queues+0x305/0xd30 [ 187.363133][ C1] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 187.363148][ C1] ? read_tsc+0x9/0x20 [ 187.363164][ C1] ? ktime_get_update_offsets_now+0x38e/0x3b0 [ 187.363187][ C1] hrtimer_interrupt+0x403/0xa40 [ 187.363209][ C1] __sysvec_apic_timer_interrupt+0x110/0x420 [ 187.363233][ C1] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 187.363257][ C1] [ 187.363262][ C1] [ 187.363267][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 187.363288][ C1] RIP: 0010:acpi_safe_halt+0x21/0x30 [ 187.363313][ C1] Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 80 d6 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d c5 00 82 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 [ 187.363325][ C1] RSP: 0018:ffffc900001a7d08 EFLAGS: 00000246 [ 187.363337][ C1] RAX: ffff88801da88000 RBX: ffff888020e86864 RCX: 0000000000030a79 [ 187.363347][ C1] RDX: 0000000000000001 RSI: ffff888020e86800 RDI: ffff888020e86864 [ 187.363357][ C1] RBP: 000000000003aab8 R08: ffff8880b873799b R09: 1ffff110170e6f33 [ 187.363367][ C1] R10: dffffc0000000000 R11: ffffffff8c088010 R12: ffff88801d754800 [ 187.363378][ C1] R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8f337b20 [ 187.363388][ C1] ? __pfx_acpi_idle_enter+0x10/0x10 [ 187.363413][ C1] acpi_idle_enter+0xe4/0x140 [ 187.363435][ C1] cpuidle_enter_state+0x109/0x470 [ 187.363455][ C1] ? __pfx_menu_select+0x10/0x10 [ 187.363477][ C1] cpuidle_enter+0x5d/0xa0 [ 187.363494][ C1] do_idle+0x372/0x5c0 [ 187.363510][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 187.363534][ C1] ? __pfx_do_idle+0x10/0x10 [ 187.363550][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 187.363569][ C1] ? complete+0xb4/0x1c0 [ 187.363587][ C1] cpu_startup_entry+0x42/0x60 [ 187.363604][ C1] start_secondary+0x102/0x110 [ 187.363621][ C1] common_startup_64+0x13e/0x147 [ 187.363640][ C1] [ 187.363651][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.552 msecs [ 187.364089][ C0] rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g8593 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 187.932901][ C0] rcu: Possible timer handling issue on cpu=1 timer-softirq=4203 [ 187.940702][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g8593 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 187.951987][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 187.961956][ C0] rcu: RCU grace-period kthread stack dump: [ 187.967858][ C0] task:rcu_preempt state:I stack:25400 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00004000 [ 187.979788][ C0] Call Trace: [ 187.983065][ C0] [ 187.986005][ C0] __schedule+0x190e/0x4c90 [ 187.990521][ C0] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 187.996435][ C0] ? __pfx___schedule+0x10/0x10 [ 188.001297][ C0] ? __pfx_lock_release+0x10/0x10 [ 188.006336][ C0] ? __pfx___mod_timer+0x10/0x10 [ 188.011286][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 188.017625][ C0] ? schedule+0x90/0x320 [ 188.021870][ C0] schedule+0x14b/0x320 [ 188.026036][ C0] schedule_timeout+0x15a/0x290 [ 188.030897][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 188.036277][ C0] ? __pfx_process_timeout+0x10/0x10 [ 188.041576][ C0] ? prepare_to_swait_event+0x330/0x350 [ 188.047132][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 188.052334][ C0] rcu_gp_fqs_loop+0x2df/0x1330 [ 188.057185][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 188.062391][ C0] ? rcu_gp_init+0x1256/0x1630 [ 188.067161][ C0] ? __pfx_rcu_gp_init+0x10/0x10 [ 188.072097][ C0] ? __pfx_rcu_watching_snap_recheck+0x10/0x10 [ 188.078252][ C0] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 188.083540][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 188.089444][ C0] ? finish_swait+0xd4/0x1e0 [ 188.094044][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 188.099245][ C0] rcu_gp_kthread+0xa7/0x3b0 [ 188.103846][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 188.109061][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 188.114966][ C0] ? __kthread_parkme+0x169/0x1d0 [ 188.120005][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 188.125207][ C0] kthread+0x7a9/0x920 [ 188.129290][ C0] ? __pfx_kthread+0x10/0x10 [ 188.133892][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 188.139099][ C0] ? __pfx_kthread+0x10/0x10 [ 188.143699][ C0] ? __pfx_kthread+0x10/0x10 [ 188.148303][ C0] ? __pfx_kthread+0x10/0x10 [ 188.152907][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 188.158110][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 188.163315][ C0] ? __pfx_kthread+0x10/0x10 [ 188.167916][ C0] ret_from_fork+0x4b/0x80 [ 188.172342][ C0] ? __pfx_kthread+0x10/0x10 [ 188.176944][ C0] ret_from_fork_asm+0x1a/0x30 [ 188.181736][ C0]