./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1642547354 <...> Warning: Permanently added '10.128.0.225' (ECDSA) to the list of known hosts. execve("./syz-executor1642547354", ["./syz-executor1642547354"], 0x7fffa8890110 /* 10 vars */) = 0 brk(NULL) = 0x55555682f000 brk(0x55555682fc40) = 0x55555682fc40 arch_prctl(ARCH_SET_FS, 0x55555682f300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x55555682f5d0) = 3631 set_robust_list(0x55555682f5e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f49c6dd89d0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f49c6dd90a0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f49c6dd8a70, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f49c6dd90a0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1642547354", 4096) = 28 brk(0x555556850c40) = 0x555556850c40 brk(0x555556851000) = 0x555556851000 mprotect(0x7f49c6e99000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3632 attached , child_tidptr=0x55555682f5d0) = 3632 [pid 3632] set_robust_list(0x55555682f5e0, 24) = 0 [pid 3632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3632] setpgid(0, 0) = 0 [pid 3632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3632] write(3, "1000", 4) = 4 [pid 3632] close(3) = 0 [pid 3632] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f49c6da8000 [pid 3632] mprotect(0x7f49c6da9000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3632] clone(child_stack=0x7f49c6dc83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3633], tls=0x7f49c6dc8700, child_tidptr=0x7f49c6dc89d0) = 3633 ./strace-static-x86_64: Process 3633 attached [pid 3632] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] set_robust_list(0x7f49c6dc89e0, 24) = 0 [pid 3633] openat(AT_FDCWD, "/dev/virtual_nci", O_RDWR) = 3 [pid 3633] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3632] <... futex resumed>) = 0 [pid 3632] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] <... futex resumed>) = 1 [pid 3633] ioctl(3, _IOC(_IOC_NONE, 0, 0, 0), 0x200000c0) = 0 [pid 3633] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3632] <... futex resumed>) = 0 [pid 3632] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] <... futex resumed>) = 1 [pid 3633] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 4 [pid 3633] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3632] <... futex resumed>) = 0 [pid 3632] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] <... futex resumed>) = 1 [pid 3633] sendto(4, [{nlmsg_len=28, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x03\x00\x00\x00\x08\x00\x02\x00\x6e\x66\x63\x00"], 28, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 28 [pid 3633] recvfrom(4, [{nlmsg_len=472, nlmsg_type=nlctrl, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=3632}, "\x01\x02\x00\x00\x08\x00\x02\x00\x6e\x66\x63\x00\x06\x00\x01\x00\x1d\x00\x00\x00\x08\x00\x03\x00\x01\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x08\x00\x05\x00\x1f\x00\x00\x00\x80\x01\x06\x00\x14\x00\x01\x00\x08\x00\x01\x00\x01\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x02\x00\x08\x00\x01\x00\x02\x00\x00\x00\x08\x00\x02\x00\x0b\x00\x00\x00\x14\x00\x03\x00\x08\x00\x01\x00\x03\x00\x00\x00"...], 4096, 0, NULL, NULL) = 472 [pid 3633] recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3632}, {error=0, msg={nlmsg_len=28, nlmsg_type=nlctrl, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 3633] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3632] <... futex resumed>) = 0 [pid 3633] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x1c\x00\x00\x00\x1d\x00\x01\x00\x23\x01\x00\x00\x34\x02\x00\x00\x02\x00\x00\x00\x08\x00\x01\x00\x02\x00\x00\x00", iov_len=28}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 3632] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3632] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3632] futex(0x7f49c6e9f43c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f49c6d87000 [pid 3632] mprotect(0x7f49c6d88000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3632] clone(child_stack=0x7f49c6da73f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3638 attached , parent_tid=[3638], tls=0x7f49c6da7700, child_tidptr=0x7f49c6da79d0) = 3638 [pid 3632] futex(0x7f49c6e9f438, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7f49c6e9f43c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3638] set_robust_list(0x7f49c6da79e0, 24) = 0 [pid 3638] write(3, "\x40\x00\x00\x00\x00\x00", 6) = 6 [pid 3638] futex(0x7f49c6e9f43c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3638] futex(0x7f49c6e9f438, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3632] <... futex resumed>) = 0 [pid 3632] futex(0x7f49c6e9f438, FUTEX_WAKE_PRIVATE, 1000000 [pid 3638] <... futex resumed>) = 0 [pid 3632] <... futex resumed>) = 1 [pid 3632] futex(0x7f49c6e9f43c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3638] write(3, "\x40\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20) = 20 [pid 3638] futex(0x7f49c6e9f43c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3632] <... futex resumed>) = 0 [pid 3638] futex(0x7f49c6e9f438, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3632] futex(0x7f49c6e9f438, FUTEX_WAKE_PRIVATE, 1000000 [pid 3638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3632] <... futex resumed>) = 0 [pid 3632] futex(0x7f49c6e9f43c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3638] write(3, "\x41\x00\x00\x00", 4) = 4 [pid 3633] <... sendmsg resumed>) = 28 [pid 3638] futex(0x7f49c6e9f43c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3633] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3638] <... futex resumed>) = 1 [pid 3633] <... futex resumed>) = 0 [pid 3632] <... futex resumed>) = 0 [pid 3633] futex(0x7f49c6e9f428, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3632] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000 [pid 3633] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3632] <... futex resumed>) = 0 [pid 3633] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x24\x00\x00\x00\x1d\x00\x01\x00\x23\x01\x00\x00\x34\x02\x00\x00\x06\x00\x00\x00\x08\x00\x01\x00\x02\x00\x00\x00\x08\x00\x03\x00\xff\xff\xff\xff", iov_len=36}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 3632] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3638] futex(0x7f49c6e9f438, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3632] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3632] exit_group(0 [pid 3638] <... futex resumed>) = ? [pid 3632] <... exit_group resumed>) = ? [pid 3638] +++ exited with 0 +++ [pid 3633] <... sendmsg resumed>) = ? syzkaller login: [ 54.811945][ T3633] nci: __nci_request: wait_for_completion_interruptible_timeout failed -512 [ 54.821088][ T3633] nci: nci_start_poll: failed to set local general bytes [pid 3631] kill(-3632, SIGKILL) = 0 [pid 3631] kill(3632, SIGKILL) = 0 [pid 3631] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3631] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 3631] getdents64(3, 0x555556830620 /* 2 entries */, 32768) = 48 [pid 3631] getdents64(3, 0x555556830620 /* 0 entries */, 32768) = 0 [pid 3631] close(3) = 0 [ 59.852714][ T3633] nci: __nci_request: wait_for_completion_interruptible_timeout failed 0 [ 59.861312][ T3633] [ 59.863793][ T3633] ====================================================== [ 59.870784][ T3633] WARNING: possible circular locking dependency detected [ 59.877776][ T3633] 6.1.0-syzkaller-03225-g764822972d64 #0 Not tainted [ 59.884422][ T3633] ------------------------------------------------------ [ 59.891413][ T3633] syz-executor164/3633 is trying to acquire lock: [ 59.897797][ T3633] ffffffff8dbab6a8 (nci_mutex){+.+.}-{3:3}, at: virtual_nci_close+0x13/0x40 [ 59.906491][ T3633] [ 59.906491][ T3633] but task is already holding lock: [ 59.913841][ T3633] ffff88801fc07350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_close_device+0xfe/0x5e0 [ 59.923051][ T3633] [ 59.923051][ T3633] which lock already depends on the new lock. [ 59.923051][ T3633] [ 59.933432][ T3633] [ 59.933432][ T3633] the existing dependency chain (in reverse order) is: [ 59.942425][ T3633] [ 59.942425][ T3633] -> #3 (&ndev->req_lock){+.+.}-{3:3}: [ 59.950053][ T3633] lock_acquire+0x1a7/0x400 [ 59.955068][ T3633] __mutex_lock_common+0x1de/0x26c0 [ 59.960771][ T3633] mutex_lock_nested+0x17/0x20 [ 59.966040][ T3633] nci_start_poll+0x57a/0xef0 [ 59.971217][ T3633] nfc_start_poll+0x185/0x2f0 [ 59.976403][ T3633] nfc_genl_start_poll+0x1df/0x340 [ 59.982020][ T3633] genl_rcv_msg+0xc02/0xf60 [ 59.987022][ T3633] netlink_rcv_skb+0x1f0/0x460 [ 59.992285][ T3633] genl_rcv+0x24/0x40 [ 59.996766][ T3633] netlink_unicast+0x7e7/0x9c0 [ 60.002030][ T3633] netlink_sendmsg+0x9b3/0xcd0 [ 60.007291][ T3633] ____sys_sendmsg+0x597/0x8e0 [ 60.012555][ T3633] __sys_sendmsg+0x28e/0x390 [ 60.017645][ T3633] do_syscall_64+0x2b/0x70 [ 60.022560][ T3633] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.028955][ T3633] [ 60.028955][ T3633] -> #2 (&genl_data->genl_data_mutex){+.+.}-{3:3}: [ 60.037615][ T3633] lock_acquire+0x1a7/0x400 [ 60.042622][ T3633] __mutex_lock_common+0x1de/0x26c0 [ 60.048319][ T3633] mutex_lock_nested+0x17/0x20 [ 60.053583][ T3633] nfc_urelease_event_work+0x10a/0x300 [ 60.059542][ T3633] process_one_work+0x81c/0xd10 [ 60.064891][ T3633] worker_thread+0xb14/0x1330 [ 60.070067][ T3633] kthread+0x266/0x300 [ 60.074646][ T3633] ret_from_fork+0x1f/0x30 [ 60.079573][ T3633] [ 60.079573][ T3633] -> #1 (nfc_devlist_mutex){+.+.}-{3:3}: [ 60.087366][ T3633] lock_acquire+0x1a7/0x400 [ 60.092370][ T3633] __mutex_lock_common+0x1de/0x26c0 [ 60.098073][ T3633] mutex_lock_nested+0x17/0x20 [ 60.103338][ T3633] nfc_register_device+0x33/0x320 [ 60.108867][ T3633] nci_register_device+0x7c7/0x900 [ 60.114493][ T3633] virtual_ncidev_open+0x55/0xc0 [ 60.119943][ T3633] misc_open+0x346/0x3c0 [ 60.124686][ T3633] chrdev_open+0x5fb/0x680 [ 60.129602][ T3633] do_dentry_open+0x85f/0x11b0 [ 60.134871][ T3633] path_openat+0x25d1/0x2de0 [ 60.139967][ T3633] do_filp_open+0x275/0x500 [ 60.144973][ T3633] do_sys_openat2+0x13b/0x500 [ 60.150162][ T3633] __x64_sys_openat+0x243/0x290 [ 60.155518][ T3633] do_syscall_64+0x2b/0x70 [ 60.160432][ T3633] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.166828][ T3633] [ 60.166828][ T3633] -> #0 (nci_mutex){+.+.}-{3:3}: [ 60.173929][ T3633] validate_chain+0x184a/0x6470 [ 60.179290][ T3633] __lock_acquire+0x1292/0x1f60 [ 60.184644][ T3633] lock_acquire+0x1a7/0x400 [ 60.189652][ T3633] __mutex_lock_common+0x1de/0x26c0 [ 60.195352][ T3633] mutex_lock_nested+0x17/0x20 [ 60.200615][ T3633] virtual_nci_close+0x13/0x40 [ 60.205881][ T3633] nci_close_device+0x389/0x5e0 [ 60.211237][ T3633] nci_unregister_device+0x3c/0x250 [ 60.216949][ T3633] virtual_ncidev_close+0x55/0x90 [ 60.222485][ T3633] __fput+0x3ba/0x880 [ 60.226975][ T3633] task_work_run+0x243/0x300 [ 60.232078][ T3633] do_exit+0x664/0x2070 [ 60.236744][ T3633] do_group_exit+0x1fd/0x2b0 [ 60.241951][ T3633] get_signal+0x1743/0x1810 [ 60.246966][ T3633] arch_do_signal_or_restart+0x8d/0x5f0 [ 60.253020][ T3633] exit_to_user_mode_loop+0x74/0x160 [ 60.258819][ T3633] exit_to_user_mode_prepare+0xad/0x110 [ 60.264875][ T3633] syscall_exit_to_user_mode+0x2e/0x60 [ 60.270852][ T3633] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.277260][ T3633] [ 60.277260][ T3633] other info that might help us debug this: [ 60.277260][ T3633] [ 60.287474][ T3633] Chain exists of: [ 60.287474][ T3633] nci_mutex --> &genl_data->genl_data_mutex --> &ndev->req_lock [ 60.287474][ T3633] [ 60.301017][ T3633] Possible unsafe locking scenario: [ 60.301017][ T3633] [ 60.308457][ T3633] CPU0 CPU1 [ 60.313842][ T3633] ---- ---- [ 60.319191][ T3633] lock(&ndev->req_lock); [ 60.323596][ T3633] lock(&genl_data->genl_data_mutex); [ 60.331561][ T3633] lock(&ndev->req_lock); [ 60.338481][ T3633] lock(nci_mutex); [ 60.342379][ T3633] [ 60.342379][ T3633] *** DEADLOCK *** [ 60.342379][ T3633] [ 60.350507][ T3633] 1 lock held by syz-executor164/3633: [ 60.355949][ T3633] #0: ffff88801fc07350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_close_device+0xfe/0x5e0 [ 60.365602][ T3633] [ 60.365602][ T3633] stack backtrace: [ 60.371560][ T3633] CPU: 0 PID: 3633 Comm: syz-executor164 Not tainted 6.1.0-syzkaller-03225-g764822972d64 #0 [ 60.381607][ T3633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 60.391646][ T3633] Call Trace: [ 60.394916][ T3633] [ 60.397837][ T3633] dump_stack_lvl+0x1e3/0x2cb [ 60.402505][ T3633] ? nf_tcp_handle_invalid+0x62e/0x62e [ 60.407966][ T3633] ? print_circular_bug+0x13e/0x1c0 [ 60.413152][ T3633] check_noncircular+0x2f9/0x3b0 [ 60.418076][ T3633] ? desc_read+0x1ac/0x410 [ 60.422486][ T3633] ? add_chain_block+0x850/0x850 [ 60.427411][ T3633] ? lockdep_lock+0x11d/0x2a0 [ 60.432076][ T3633] ? _find_first_zero_bit+0xe8/0x110 [ 60.437347][ T3633] validate_chain+0x184a/0x6470 [ 60.442194][ T3633] ? mark_lock+0x9a/0x350 [ 60.446509][ T3633] ? reacquire_held_locks+0x680/0x680 [ 60.451872][ T3633] ? desc_read+0x201/0x410 [ 60.456287][ T3633] ? memcpy+0x3c/0x60 [ 60.460260][ T3633] ? desc_read+0x1ac/0x410 [ 60.464668][ T3633] ? _prb_read_valid+0xb3b/0xbd0 [ 60.469599][ T3633] ? trace_lock_release+0x95/0x220 [ 60.474701][ T3633] ? mark_lock+0x9a/0x350 [ 60.479016][ T3633] __lock_acquire+0x1292/0x1f60 [ 60.483861][ T3633] lock_acquire+0x1a7/0x400 [ 60.488348][ T3633] ? virtual_nci_close+0x13/0x40 [ 60.493275][ T3633] ? read_lock_is_recursive+0x10/0x10 [ 60.498643][ T3633] ? __might_sleep+0xc0/0xc0 [ 60.503222][ T3633] ? find_next_clump8+0x1b0/0x1b0 [ 60.508230][ T3633] ? console_unlock+0x1e6/0x270 [ 60.513070][ T3633] __mutex_lock_common+0x1de/0x26c0 [ 60.518253][ T3633] ? virtual_nci_close+0x13/0x40 [ 60.523176][ T3633] ? irq_work_queue+0xb4/0x120 [ 60.527926][ T3633] ? __wake_up_klogd+0xd6/0x100 [ 60.532763][ T3633] ? virtual_nci_close+0x13/0x40 [ 60.537686][ T3633] ? _printk+0xcf/0x10f [ 60.541831][ T3633] ? mutex_lock_io_nested+0x60/0x60 [ 60.547014][ T3633] ? panic+0x766/0x766 [ 60.551070][ T3633] ? _raw_spin_unlock_irq+0x1f/0x40 [ 60.556258][ T3633] mutex_lock_nested+0x17/0x20 [ 60.561008][ T3633] virtual_nci_close+0x13/0x40 [ 60.565759][ T3633] nci_close_device+0x389/0x5e0 [ 60.570596][ T3633] ? nci_unregister_device+0x250/0x250 [ 60.576042][ T3633] ? mutex_unlock+0x10/0x10 [ 60.580533][ T3633] nci_unregister_device+0x3c/0x250 [ 60.585717][ T3633] ? virtual_ncidev_open+0xc0/0xc0 [ 60.590817][ T3633] virtual_ncidev_close+0x55/0x90 [ 60.595826][ T3633] ? virtual_ncidev_open+0xc0/0xc0 [ 60.600927][ T3633] __fput+0x3ba/0x880 [ 60.604900][ T3633] task_work_run+0x243/0x300 [ 60.610696][ T3633] ? task_work_cancel+0x290/0x290 [ 60.615712][ T3633] ? switch_task_namespaces+0xaf/0xe0 [ 60.621072][ T3633] do_exit+0x664/0x2070 [ 60.625222][ T3633] ? mm_update_next_owner+0x6d0/0x6d0 [ 60.630587][ T3633] ? lockdep_hardirqs_on_prepare+0x448/0x7b0 [ 60.636555][ T3633] ? print_irqtrace_events+0x220/0x220 [ 60.641999][ T3633] ? _raw_spin_lock_irq+0xdb/0x110 [ 60.647099][ T3633] do_group_exit+0x1fd/0x2b0 [ 60.651676][ T3633] ? _raw_spin_unlock_irq+0x1f/0x40 [ 60.656860][ T3633] ? lockdep_hardirqs_on+0x95/0x140 [ 60.662052][ T3633] get_signal+0x1743/0x1810 [ 60.666544][ T3633] ? print_irqtrace_events+0x220/0x220 [ 60.671997][ T3633] ? ptrace_notify+0x340/0x340 [ 60.676746][ T3633] ? do_raw_spin_unlock+0x134/0x8a0 [ 60.681940][ T3633] ? _raw_spin_unlock_irq+0x1f/0x40 [ 60.687131][ T3633] arch_do_signal_or_restart+0x8d/0x5f0 [ 60.692662][ T3633] ? get_sigframe_size+0x10/0x10 [ 60.697587][ T3633] ? exit_to_user_mode_loop+0x42/0x160 [ 60.703039][ T3633] exit_to_user_mode_loop+0x74/0x160 [ 60.708312][ T3633] exit_to_user_mode_prepare+0xad/0x110 [ 60.713850][ T3633] syscall_exit_to_user_mode+0x2e/0x60 [ 60.719306][ T3633] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.725189][ T3633] RIP: 0033:0x7f49c6e17639 [ 60.729591][ T3633] Code: Unable to access opcode bytes at 0x7f49c6e1760f. [ 60.736587][ T3633] RSP: 002b:00007f49c6dc8318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 60.744984][ T3633] RAX: 0000000000000024 RBX: 00007f49c6e9f428 RCX: 00007f49c6e17639 [pid 3633] +++ exited with 0 +++ [pid 3632] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3632, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555682f5d0) = 3641 ./strace-static-x86_64: Process 3641 attached [pid 3641] set_robust_list(0x55555682f5e0, 24) = 0 [pid 3641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3641] setpgid(0, 0) = 0 [pid 3641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3641] write(3, "1000", 4) = 4 [pid 3641] close(3) = 0 [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f49c6da8000 [pid 3641] mprotect(0x7f49c6da9000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3641] clone(child_stack=0x7f49c6dc83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3642], tls=0x7f49c6dc8700, child_tidptr=0x7f49c6dc89d0) = 3642 [pid 3641] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3642 attached [pid 3642] set_robust_list(0x7f49c6dc89e0, 24) = 0 [pid 3642] openat(AT_FDCWD, "/dev/virtual_nci", O_RDWR) = 3 [pid 3642] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3641] <... futex resumed>) = 0 [pid 3641] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3642] <... futex resumed>) = 1 [pid 3642] ioctl(3, _IOC(_IOC_NONE, 0, 0, 0), 0x200000c0) = 0 [pid 3642] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3641] <... futex resumed>) = 0 [pid 3641] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3642] <... futex resumed>) = 1 [pid 3642] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 4 [pid 3642] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3641] <... futex resumed>) = 0 [pid 3641] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3642] <... futex resumed>) = 1 [pid 3642] sendto(4, [{nlmsg_len=28, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x03\x00\x00\x00\x08\x00\x02\x00\x6e\x66\x63\x00"], 28, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 28 [pid 3642] recvfrom(4, [{nlmsg_len=472, nlmsg_type=nlctrl, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=3641}, "\x01\x02\x00\x00\x08\x00\x02\x00\x6e\x66\x63\x00\x06\x00\x01\x00\x1d\x00\x00\x00\x08\x00\x03\x00\x01\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x08\x00\x05\x00\x1f\x00\x00\x00\x80\x01\x06\x00\x14\x00\x01\x00\x08\x00\x01\x00\x01\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x02\x00\x08\x00\x01\x00\x02\x00\x00\x00\x08\x00\x02\x00\x0b\x00\x00\x00\x14\x00\x03\x00\x08\x00\x01\x00\x03\x00\x00\x00"...], 4096, 0, NULL, NULL) = 472 [pid 3642] recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3641}, {error=0, msg={nlmsg_len=28, nlmsg_type=nlctrl, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 3642] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3641] <... futex resumed>) = 0 [pid 3641] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3642] <... futex resumed>) = 1 [ 60.752938][ T3633] RDX: 0000000000000000 RSI: 0000000020000440 RDI: 0000000000000004 [ 60.760897][ T3633] RBP: 00007f49c6e9f420 R08: 0000000000000003 R09: 0000000000000000 [ 60.768852][ T3633] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f49c6e6d064 [ 60.776810][ T3633] R13: 00007ffe3eb9521f R14: 00007f49c6dc8400 R15: 0000000000022000 [ 60.784783][ T3633] [pid 3642] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x1c\x00\x00\x00\x1d\x00\x01\x00\x23\x01\x00\x00\x34\x02\x00\x00\x02\x00\x00\x00\x08\x00\x01\x00\x02\x00\x00\x00", iov_len=28}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 3641] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3641] futex(0x7f49c6e9f43c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f49c6d87000 [pid 3641] mprotect(0x7f49c6d88000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3641] clone(child_stack=0x7f49c6da73f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3646], tls=0x7f49c6da7700, child_tidptr=0x7f49c6da79d0) = 3646 [pid 3641] futex(0x7f49c6e9f438, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] futex(0x7f49c6e9f43c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3646 attached [pid 3646] set_robust_list(0x7f49c6da79e0, 24) = 0 [pid 3646] write(3, "\x40\x00\x00\x00\x00\x00", 6) = 6 [pid 3646] futex(0x7f49c6e9f43c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3641] <... futex resumed>) = 0 [pid 3641] futex(0x7f49c6e9f438, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] futex(0x7f49c6e9f43c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3646] write(3, "\x40\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20) = 20 [pid 3646] futex(0x7f49c6e9f43c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3641] <... futex resumed>) = 0 [pid 3641] futex(0x7f49c6e9f438, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] futex(0x7f49c6e9f43c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3646] write(3, "\x41\x00\x00\x00", 4) = 4 [pid 3642] <... sendmsg resumed>) = 28 [pid 3646] futex(0x7f49c6e9f43c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3642] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3646] <... futex resumed>) = 1 [pid 3642] <... futex resumed>) = 0 [pid 3641] <... futex resumed>) = 0 [pid 3641] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3646] futex(0x7f49c6e9f438, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3642] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x24\x00\x00\x00\x1d\x00\x01\x00\x23\x01\x00\x00\x34\x02\x00\x00\x06\x00\x00\x00\x08\x00\x01\x00\x02\x00\x00\x00\x08\x00\x03\x00\xff\xff\xff\xff", iov_len=36}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 3641] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3641] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3641] exit_group(0 [pid 3646] <... futex resumed>) = ? [pid 3641] <... exit_group resumed>) = ? [pid 3646] +++ exited with 0 +++ [pid 3642] <... sendmsg resumed>) = ? [ 61.043447][ T3642] nci: __nci_request: wait_for_completion_interruptible_timeout failed -512 [ 61.052284][ T3642] nci: nci_start_poll: failed to set local general bytes [pid 3631] kill(-3641, SIGKILL) = 0 [pid 3631] kill(3641, SIGKILL) = 0 [pid 3631] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3631] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 3631] getdents64(3, 0x555556830620 /* 2 entries */, 32768) = 48 [pid 3631] getdents64(3, 0x555556830620 /* 0 entries */, 32768) = 0 [pid 3631] close(3) = 0 [pid 3642] +++ exited with 0 +++ [pid 3641] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3641, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555682f5d0) = 3648 ./strace-static-x86_64: Process 3648 attached [pid 3648] set_robust_list(0x55555682f5e0, 24) = 0 [pid 3648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3648] setpgid(0, 0) = 0 [pid 3648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3648] write(3, "1000", 4) = 4 [pid 3648] close(3) = 0 [pid 3648] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f49c6da8000 [pid 3648] mprotect(0x7f49c6da9000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3648] clone(child_stack=0x7f49c6dc83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3649 attached , parent_tid=[3649], tls=0x7f49c6dc8700, child_tidptr=0x7f49c6dc89d0) = 3649 [pid 3648] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3649] set_robust_list(0x7f49c6dc89e0, 24) = 0 [pid 3649] openat(AT_FDCWD, "/dev/virtual_nci", O_RDWR) = 3 [pid 3649] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3648] <... futex resumed>) = 0 [pid 3648] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3649] <... futex resumed>) = 1 [pid 3649] ioctl(3, _IOC(_IOC_NONE, 0, 0, 0), 0x200000c0) = 0 [pid 3649] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3648] <... futex resumed>) = 0 [pid 3648] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3649] <... futex resumed>) = 1 [pid 3649] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 4 [pid 3649] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3648] <... futex resumed>) = 0 [pid 3648] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3649] <... futex resumed>) = 1 [pid 3649] sendto(4, [{nlmsg_len=28, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x03\x00\x00\x00\x08\x00\x02\x00\x6e\x66\x63\x00"], 28, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 28 [pid 3649] recvfrom(4, [{nlmsg_len=472, nlmsg_type=nlctrl, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=3648}, "\x01\x02\x00\x00\x08\x00\x02\x00\x6e\x66\x63\x00\x06\x00\x01\x00\x1d\x00\x00\x00\x08\x00\x03\x00\x01\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x08\x00\x05\x00\x1f\x00\x00\x00\x80\x01\x06\x00\x14\x00\x01\x00\x08\x00\x01\x00\x01\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x02\x00\x08\x00\x01\x00\x02\x00\x00\x00\x08\x00\x02\x00\x0b\x00\x00\x00\x14\x00\x03\x00\x08\x00\x01\x00\x03\x00\x00\x00"...], 4096, 0, NULL, NULL) = 472 [pid 3649] recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3648}, {error=0, msg={nlmsg_len=28, nlmsg_type=nlctrl, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 3649] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3648] <... futex resumed>) = 0 [pid 3648] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3649] <... futex resumed>) = 1 [ 66.092471][ T3642] nci: __nci_request: wait_for_completion_interruptible_timeout failed 0 [pid 3649] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x1c\x00\x00\x00\x1d\x00\x01\x00\x23\x01\x00\x00\x34\x02\x00\x00\x02\x00\x00\x00\x08\x00\x01\x00\x02\x00\x00\x00", iov_len=28}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 3648] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3648] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3648] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3648] futex(0x7f49c6e9f43c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f49c6d87000 [pid 3648] mprotect(0x7f49c6d88000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3648] clone(child_stack=0x7f49c6da73f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3653], tls=0x7f49c6da7700, child_tidptr=0x7f49c6da79d0) = 3653 [pid 3648] futex(0x7f49c6e9f438, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] futex(0x7f49c6e9f43c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3653 attached [pid 3653] set_robust_list(0x7f49c6da79e0, 24) = 0 [pid 3653] write(3, "\x40\x00\x00\x00\x00\x00", 6) = 6 [pid 3653] futex(0x7f49c6e9f43c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3648] <... futex resumed>) = 0 [pid 3648] futex(0x7f49c6e9f438, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] futex(0x7f49c6e9f43c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3653] <... futex resumed>) = 1 [pid 3653] write(3, "\x40\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20) = 20 [pid 3653] futex(0x7f49c6e9f43c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3648] <... futex resumed>) = 0 [pid 3648] futex(0x7f49c6e9f438, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] futex(0x7f49c6e9f43c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3653] <... futex resumed>) = 1 [pid 3653] write(3, "\x41\x00\x00\x00", 4) = 4 [pid 3649] <... sendmsg resumed>) = 28 [pid 3649] futex(0x7f49c6e9f42c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3649] futex(0x7f49c6e9f428, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3653] futex(0x7f49c6e9f43c, FUTEX_WAKE_PRIVATE, 1000000 [pid 3648] <... futex resumed>) = 0 [pid 3648] futex(0x7f49c6e9f428, FUTEX_WAKE_PRIVATE, 1000000 [pid 3649] <... futex resumed>) = 0 [pid 3648] <... futex resumed>) = 1 [pid 3649] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x24\x00\x00\x00\x1d\x00\x01\x00\x23\x01\x00\x00\x34\x02\x00\x00\x06\x00\x00\x00\x08\x00\x01\x00\x02\x00\x00\x00\x08\x00\x03\x00\xff\xff\xff\xff", iov_len=36}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 3648] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3653] <... futex resumed>) = 1 [pid 3653] futex(0x7f49c6e9f438, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3648] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3648] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3648] futex(0x7f49c6e9f42c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3648] exit_group(0) = ? [pid 3653] <... futex resumed>) = ? [pid 3653] +++ exited with 0 +++ [pid 3649] <... sendmsg resumed>) = ? [ 66.351503][ T3649] nci: __nci_request: wait_for_completion_interruptible_timeout failed -512 [ 66.360533][ T3649] nci: nci_start_poll: failed to set local general bytes