./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1963571300

<...>
Warning: Permanently added '10.128.0.52' (ED25519) to the list of known hosts.
execve("./syz-executor1963571300", ["./syz-executor1963571300"], 0x7ffdce53d780 /* 10 vars */) = 0
brk(NULL)                               = 0x55555e9a6000
brk(0x55555e9a6d40)                     = 0x55555e9a6d40
arch_prctl(ARCH_SET_FS, 0x55555e9a63c0) = 0
set_tid_address(0x55555e9a6690)         = 5080
set_robust_list(0x55555e9a66a0, 24)     = 0
rseq(0x55555e9a6ce0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1963571300", 4096) = 28
getrandom("\x14\xec\xdc\x9a\x6a\xff\x52\xcf", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55555e9a6d40
brk(0x55555e9c7d40)                     = 0x55555e9c7d40
brk(0x55555e9c8000)                     = 0x55555e9c8000
mprotect(0x7f6fbe16e000, 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 5081 attached
 <unfinished ...>
[pid  5081] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5081] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5080] <... clone resumed>, child_tidptr=0x55555e9a6690) = 5081
[pid  5081] <... prctl resumed>)        = 0
[pid  5081] setpgid(0, 0)               = 0
[pid  5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5081] write(3, "1000", 4)         = 4
[pid  5081] close(3)                    = 0
[pid  5081] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5081] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5081] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5081] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5081] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5081] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5081] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5082 attached
 <unfinished ...>
[pid  5082] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5081] <... clone3 resumed> => {parent_tid=[5082]}, 88) = 5082
[pid  5082] <... rseq resumed>)         = 0
[pid  5081] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5082] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5081] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5082] <... set_robust_list resumed>) = 0
[pid  5081] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5082] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5081] <... futex resumed>)        = 0
[pid  5082] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5081] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5082] socketpair(AF_UNIX, SOCK_STREAM, 0, [3, 4]) = 0
[pid  5082] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5082] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5081] <... futex resumed>)        = 0
[pid  5081] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5082] <... futex resumed>)        = 0
[pid  5081] <... futex resumed>)        = 1
[pid  5082] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5081] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5082] <... getsockopt resumed>{pid=5081, uid=0, gid=0}, [12]) = 0
[pid  5082] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5081] <... futex resumed>)        = 0
[pid  5082] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5081] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5082] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5081] <... futex resumed>)        = 0
[pid  5082] sendmmsg(4,  <unfinished ...>
[pid  5081] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5082] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5081, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5082] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5082] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5081] <... futex resumed>)        = 0
[pid  5081] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5082] <... futex resumed>)        = 0
[pid  5082] pipe([5, 6])                = 0
[pid  5082] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5081] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5082] <... futex resumed>)        = 0
[pid  5082] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5081] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5081] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5082] <... futex resumed>)        = 0
[pid  5081] <... futex resumed>)        = 1
[pid  5082] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5081] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5081] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5081] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5081] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5081] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5081] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5083 attached
 <unfinished ...>
[pid  5083] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053) = 0
[pid  5083] set_robust_list(0x7f6fbe0849a0, 24) = 0
[pid  5083] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5081] <... clone3 resumed> => {parent_tid=[5083]}, 88) = 5083
[pid  5083] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5081] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5083] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5081] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5081] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5083] <... futex resumed>)        = 0
[pid  5081] <... futex resumed>)        = 1
[pid  5083] socket(AF_UNIX, SOCK_SEQPACKET, 0 <unfinished ...>
[pid  5081] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5083] <... socket resumed>)       = 7
[pid  5083] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5081] <... futex resumed>)        = 0
[pid  5083] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5081] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5083] <... bind resumed>)         = 0
[pid  5081] <... futex resumed>)        = 0
[pid  5081] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5083] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5081] <... futex resumed>)        = 0
[pid  5083] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5081] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5083] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5081] <... futex resumed>)        = 0
[pid  5083] listen(7, 0 <unfinished ...>
[pid  5081] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5083] <... listen resumed>)       = 0
[pid  5083] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5081] <... futex resumed>)        = 0
[pid  5083] <... futex resumed>)        = 1
[pid  5081] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5083] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5081] <... futex resumed>)        = 0
[pid  5083] <... socketpair resumed>[8, 9]) = 0
[pid  5081] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5083] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5081] <... futex resumed>)        = 0
[pid  5083] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5081] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5083] <... sendmsg resumed>)      = 0
[pid  5081] <... futex resumed>)        = 0
[pid  5083] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5081] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5083] <... futex resumed>)        = 0
[pid  5081] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5083] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5081] exit_group(0 <unfinished ...>
[pid  5083] <... futex resumed>)        = ?
[pid  5082] <... splice resumed>)       = ?
[pid  5081] <... exit_group resumed>)   = ?
[pid  5083] +++ exited with 0 +++
[pid  5082] +++ exited with 0 +++
[pid  5081] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5084 attached
, child_tidptr=0x55555e9a6690) = 5084
[pid  5084] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5084] setpgid(0, 0)               = 0
[pid  5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5084] write(3, "1000", 4)         = 4
[pid  5084] close(3)                    = 0
[pid  5084] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5084] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5084] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5084] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5084] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5084] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5085 attached
 <unfinished ...>
[pid  5085] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5084] <... clone3 resumed> => {parent_tid=[5085]}, 88) = 5085
[pid  5085] <... rseq resumed>)         = 0
[pid  5084] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5085] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5084] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5085] <... set_robust_list resumed>) = 0
[pid  5084] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5085] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5084] <... futex resumed>)        = 0
[pid  5085] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5084] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5085] socketpair(AF_UNIX, SOCK_STREAM, 0, [3, 4]) = 0
[pid  5085] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5084] <... futex resumed>)        = 0
[pid  5085] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5084] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5085] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5084] <... futex resumed>)        = 0
[pid  5085] <... getsockopt resumed>{pid=5084, uid=0, gid=0}, [12]) = 0
[pid  5084] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5085] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5084] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5085] <... futex resumed>)        = 0
[pid  5085] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5084] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5085] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5084] <... futex resumed>)        = 0
[pid  5084] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5085] sendmmsg(4, [{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5084, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5085] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5085] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5084] <... futex resumed>)        = 0
[pid  5084] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5085] <... futex resumed>)        = 0
[pid  5084] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5085] pipe([5, 6])                = 0
[pid  5085] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5084] <... futex resumed>)        = 0
[pid  5085] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5084] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5085] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5084] <... futex resumed>)        = 0
[pid  5085] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5084] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5084] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5084] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5084] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5084] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5086 attached
 <unfinished ...>
[pid  5086] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5084] <... clone3 resumed> => {parent_tid=[5086]}, 88) = 5086
[pid  5086] <... rseq resumed>)         = 0
[pid  5084] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5086] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5084] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5086] <... set_robust_list resumed>) = 0
[pid  5084] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5086] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5084] <... futex resumed>)        = 0
[pid  5086] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5084] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5086] socket(AF_UNIX, SOCK_SEQPACKET, 0) = 7
[pid  5086] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5084] <... futex resumed>)        = 0
[pid  5086] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5084] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5086] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5084] <... futex resumed>)        = 0
[pid  5086] <... bind resumed>)         = 0
[pid  5084] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5086] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5084] <... futex resumed>)        = 0
[pid  5086] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5084] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5086] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5084] <... futex resumed>)        = 0
[pid  5086] listen(7, 0 <unfinished ...>
[pid  5084] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5086] <... listen resumed>)       = 0
[pid  5086] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5084] <... futex resumed>)        = 0
[pid  5086] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5084] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5086] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5084] <... futex resumed>)        = 0
[pid  5086] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5084] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5086] <... socketpair resumed>[8, 9]) = 0
[pid  5086] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5086] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5084] <... futex resumed>)        = 0
[pid  5084] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5086] <... futex resumed>)        = 0
[pid  5084] <... futex resumed>)        = 1
[pid  5086] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5084] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5086] <... sendmsg resumed>)      = 0
[pid  5086] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5084] <... futex resumed>)        = 0
[pid  5086] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5084] exit_group(0 <unfinished ...>
[pid  5086] <... futex resumed>)        = ?
[pid  5085] <... splice resumed>)       = ?
[pid  5084] <... exit_group resumed>)   = ?
[pid  5085] +++ exited with 0 +++
[pid  5086] +++ exited with 0 +++
[   70.592464][   T11] 
[   70.594825][   T11] ======================================================
[   70.601835][   T11] WARNING: possible circular locking dependency detected
[   70.608850][   T11] 6.9.0-rc5-syzkaller-00007-g4d2008430ce8 #0 Not tainted
[   70.615891][   T11] ------------------------------------------------------
[   70.622901][   T11] kworker/u8:1/11 is trying to acquire lock:
[   70.628868][   T11] ffff88807cea4e70 (&u->lock){+.+.}-{2:2}, at: __unix_gc+0x40e/0xf70
[   70.636990][   T11] 
[   70.636990][   T11] but task is already holding lock:
[   70.644360][   T11] ffffffff8f6ab638 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0x117/0xf70
[   70.652814][   T11] 
[   70.652814][   T11] which lock already depends on the new lock.
[   70.652814][   T11] 
[   70.663209][   T11] 
[   70.663209][   T11] the existing dependency chain (in reverse order) is:
[   70.672213][   T11] 
[   70.672213][   T11] -> #1 (unix_gc_lock){+.+.}-{2:2}:
[   70.679599][   T11]        lock_acquire+0x1ed/0x550
[   70.684631][   T11]        _raw_spin_lock+0x2e/0x40
[   70.689666][   T11]        unix_notinflight+0x13d/0x390
[   70.695031][   T11]        unix_destruct_scm+0x221/0x350
[   70.700479][   T11]        skb_release_head_state+0x100/0x250
[   70.706379][   T11]        kfree_skb_reason+0x16d/0x3b0
[   70.711745][   T11]        unix_stream_read_generic+0x1125/0x2700
[   70.717983][   T11]        unix_stream_splice_read+0x239/0x320
[   70.723951][   T11]        splice_file_to_pipe+0x299/0x500
[   70.729680][   T11]        do_splice+0xf2d/0x1880
[   70.734526][   T11]        __se_sys_splice+0x331/0x4a0
[   70.739807][   T11]        do_syscall_64+0xf5/0x240
[   70.744853][   T11]        entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   70.751262][   T11] 
[   70.751262][   T11] -> #0 (&u->lock){+.+.}-{2:2}:
[   70.758301][   T11]        validate_chain+0x18cb/0x58e0
[   70.763669][   T11]        __lock_acquire+0x1346/0x1fd0
[   70.769036][   T11]        lock_acquire+0x1ed/0x550
[   70.774052][   T11]        _raw_spin_lock+0x2e/0x40
[   70.779094][   T11]        __unix_gc+0x40e/0xf70
[   70.783855][   T11]        process_scheduled_works+0xa10/0x17c0
[   70.789915][   T11]        worker_thread+0x86d/0xd70
[   70.795017][   T11]        kthread+0x2f0/0x390
[   70.799602][   T11]        ret_from_fork+0x4b/0x80
[   70.804536][   T11]        ret_from_fork_asm+0x1a/0x30
[   70.809817][   T11] 
[   70.809817][   T11] other info that might help us debug this:
[   70.809817][   T11] 
[   70.820047][   T11]  Possible unsafe locking scenario:
[   70.820047][   T11] 
[   70.827519][   T11]        CPU0                    CPU1
[   70.832893][   T11]        ----                    ----
[   70.838245][   T11]   lock(unix_gc_lock);
[   70.842412][   T11]                                lock(&u->lock);
[   70.848730][   T11]                                lock(unix_gc_lock);
[   70.855398][   T11]   lock(&u->lock);
[   70.859201][   T11] 
[   70.859201][   T11]  *** DEADLOCK ***
[   70.859201][   T11] 
[   70.867330][   T11] 3 locks held by kworker/u8:1/11:
[   70.872429][   T11]  #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x17c0
[   70.884103][   T11]  #1: ffffc90000107d00 (unix_gc_work){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x17c0
[   70.894275][   T11]  #2: ffffffff8f6ab638 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0x117/0xf70
[   70.903158][   T11] 
[   70.903158][   T11] stack backtrace:
[   70.909033][   T11] CPU: 0 PID: 11 Comm: kworker/u8:1 Not tainted 6.9.0-rc5-syzkaller-00007-g4d2008430ce8 #0
[   70.919013][   T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[   70.929061][   T11] Workqueue: events_unbound __unix_gc
[   70.934438][   T11] Call Trace:
[   70.937712][   T11]  <TASK>
[   70.940660][   T11]  dump_stack_lvl+0x241/0x360
[   70.945366][   T11]  ? __pfx_dump_stack_lvl+0x10/0x10
[   70.950571][   T11]  ? print_circular_bug+0x130/0x1a0
[   70.955772][   T11]  check_noncircular+0x36a/0x4a0
[   70.960716][   T11]  ? __pfx_check_noncircular+0x10/0x10
[   70.966172][   T11]  ? lockdep_lock+0x123/0x2b0
[   70.970845][   T11]  ? mark_lock+0x9a/0x350
[   70.975228][   T11]  ? _find_first_zero_bit+0xd4/0x100
[   70.980522][   T11]  validate_chain+0x18cb/0x58e0
[   70.985405][   T11]  ? validate_chain+0x11b/0x58e0
[   70.990345][   T11]  ? __pfx_validate_chain+0x10/0x10
[   70.995545][   T11]  ? __pfx_validate_chain+0x10/0x10
[   71.000760][   T11]  ? do_raw_spin_lock+0x14f/0x370
[   71.005808][   T11]  ? validate_chain+0x11b/0x58e0
[   71.010751][   T11]  ? __pfx_validate_chain+0x10/0x10
[   71.015954][   T11]  ? __pfx_validate_chain+0x10/0x10
[   71.021281][   T11]  ? __lock_acquire+0x1346/0x1fd0
[   71.026317][   T11]  ? mark_lock+0x9a/0x350
[   71.030677][   T11]  __lock_acquire+0x1346/0x1fd0
[   71.035537][   T11]  lock_acquire+0x1ed/0x550
[   71.040057][   T11]  ? __unix_gc+0x40e/0xf70
[   71.044474][   T11]  ? __pfx_register_lock_class+0x10/0x10
[   71.050102][   T11]  ? __pfx_lock_acquire+0x10/0x10
[   71.055125][   T11]  ? do_raw_spin_lock+0x14f/0x370
[   71.060158][   T11]  ? __lock_acquire+0x1346/0x1fd0
[   71.065186][   T11]  ? __pfx_do_raw_spin_lock+0x10/0x10
[   71.070572][   T11]  _raw_spin_lock+0x2e/0x40
[   71.075078][   T11]  ? __unix_gc+0x40e/0xf70
[   71.079493][   T11]  __unix_gc+0x40e/0xf70
[   71.083737][   T11]  ? __pfx___unix_gc+0x10/0x10
[   71.088521][   T11]  ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[   71.094850][   T11]  ? process_scheduled_works+0x91b/0x17c0
[   71.100563][   T11]  process_scheduled_works+0xa10/0x17c0
[   71.106117][   T11]  ? __pfx_process_scheduled_works+0x10/0x10
[   71.112121][   T11]  ? assign_work+0x364/0x3d0
[   71.116812][   T11]  worker_thread+0x86d/0xd70
[   71.121408][   T11]  ? __kthread_parkme+0x169/0x1d0
[   71.126431][   T11]  ? __pfx_worker_thread+0x10/0x10
[   71.131547][   T11]  kthread+0x2f0/0x390
[   71.135619][   T11]  ? __pfx_worker_thread+0x10/0x10
[pid  5084] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=59 /* 0.59 s */} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5087 attached
 <unfinished ...>
[pid  5087] set_robust_list(0x55555e9a66a0, 24 <unfinished ...>
[pid  5080] <... clone resumed>, child_tidptr=0x55555e9a6690) = 5087
[pid  5087] <... set_robust_list resumed>) = 0
[pid  5087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5087] setpgid(0, 0)               = 0
[pid  5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5087] write(3, "1000", 4)         = 4
[   71.140733][   T11]  ? __pfx_kthread+0x10/0x10
[   71.145322][   T11]  ret_from_fork+0x4b/0x80
[   71.149752][   T11]  ? __pfx_kthread+0x10/0x10
[   71.154348][   T11]  ret_from_fork_asm+0x1a/0x30
[   71.159138][   T11]  </TASK>
[pid  5087] close(3)                    = 0
[pid  5087] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5087] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5087] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5087] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5087] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5087] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5087] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5088 attached
 <unfinished ...>
[pid  5088] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5087] <... clone3 resumed> => {parent_tid=[5088]}, 88) = 5088
[pid  5088] <... rseq resumed>)         = 0
[pid  5087] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5088] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5087] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5088] <... set_robust_list resumed>) = 0
[pid  5087] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5088] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5087] <... futex resumed>)        = 0
[pid  5088] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5087] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5088] socketpair(AF_UNIX, SOCK_STREAM, 0, [3, 4]) = 0
[pid  5088] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5088] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5087] <... futex resumed>)        = 0
[pid  5087] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5088] <... futex resumed>)        = 0
[pid  5087] <... futex resumed>)        = 1
[pid  5088] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5087] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5088] <... getsockopt resumed>{pid=5087, uid=0, gid=0}, [12]) = 0
[pid  5088] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5087] <... futex resumed>)        = 0
[pid  5088] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5087] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5088] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5087] <... futex resumed>)        = 0
[pid  5088] sendmmsg(4,  <unfinished ...>
[pid  5087] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5088] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5087, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5088] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5087] <... futex resumed>)        = 0
[pid  5088] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5087] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5088] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5087] <... futex resumed>)        = 0
[pid  5088] pipe( <unfinished ...>
[pid  5087] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5088] <... pipe resumed>[5, 6])   = 0
[pid  5088] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5087] <... futex resumed>)        = 0
[pid  5088] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5087] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5087] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5087] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5087] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5087] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5087] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5087] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5089 attached
 <unfinished ...>
[pid  5089] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5087] <... clone3 resumed> => {parent_tid=[5089]}, 88) = 5089
[pid  5089] <... rseq resumed>)         = 0
[pid  5087] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5089] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5087] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5089] <... set_robust_list resumed>) = 0
[pid  5087] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5089] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5087] <... futex resumed>)        = 0
[pid  5089] socket(AF_UNIX, SOCK_SEQPACKET, 0 <unfinished ...>
[pid  5087] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5089] <... socket resumed>)       = 7
[pid  5089] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5089] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5087] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5087] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5089] <... futex resumed>)        = 0
[pid  5087] <... futex resumed>)        = 1
[pid  5089] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110) = 0
[pid  5089] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5087] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5089] <... futex resumed>)        = 0
[pid  5087] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5089] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5087] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5089] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5087] <... futex resumed>)        = 0
[pid  5089] listen(7, 0 <unfinished ...>
[pid  5087] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5089] <... listen resumed>)       = 0
[pid  5089] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5087] <... futex resumed>)        = 0
[pid  5089] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5087] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5089] <... socketpair resumed>[8, 9]) = 0
[pid  5087] <... futex resumed>)        = 0
[pid  5087] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5089] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5087] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5089] <... futex resumed>)        = 0
[pid  5087] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5089] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5087] <... futex resumed>)        = 0
[pid  5089] <... sendmsg resumed>)      = 0
[pid  5087] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5089] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5087] <... futex resumed>)        = 0
[pid  5089] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5087] exit_group(0 <unfinished ...>
[pid  5089] <... futex resumed>)        = ?
[pid  5087] <... exit_group resumed>)   = ?
[pid  5089] +++ exited with 0 +++
[pid  5088] <... splice resumed>)       = ?
[pid  5088] +++ exited with 0 +++
[pid  5087] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5090 attached
 <unfinished ...>
[pid  5090] set_robust_list(0x55555e9a66a0, 24 <unfinished ...>
[pid  5080] <... clone resumed>, child_tidptr=0x55555e9a6690) = 5090
[pid  5090] <... set_robust_list resumed>) = 0
[pid  5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5090] setpgid(0, 0)               = 0
[pid  5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5090] write(3, "1000", 4)         = 4
[pid  5090] close(3)                    = 0
[pid  5090] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5090] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5090] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5090] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5090] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5090] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5091 attached
 <unfinished ...>
[pid  5091] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5090] <... clone3 resumed> => {parent_tid=[5091]}, 88) = 5091
[pid  5091] <... rseq resumed>)         = 0
[pid  5091] set_robust_list(0x7f6fbe0a59a0, 24) = 0
[pid  5091] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5091] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5090] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5090] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5091] <... futex resumed>)        = 0
[pid  5090] <... futex resumed>)        = 1
[pid  5091] socketpair(AF_UNIX, SOCK_STREAM, 0, [3, 4]) = 0
[pid  5090] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5091] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5090] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5090] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5091] <... futex resumed>)        = 0
[pid  5091] getsockopt(4, SOL_SOCKET, SO_PEERCRED, {pid=5090, uid=0, gid=0}, [12]) = 0
[pid  5091] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5091] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
[pid  5090] <... futex resumed>)        = 1
[pid  5091] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5090] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5090] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5091] <... futex resumed>)        = 0
[pid  5090] <... futex resumed>)        = 1
[pid  5091] sendmmsg(4,  <unfinished ...>
[pid  5090] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5091] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5090, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5091] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5090] <... futex resumed>)        = 0
[pid  5091] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5090] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5091] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5090] <... futex resumed>)        = 0
[pid  5091] pipe([5, 6])                = 0
[pid  5090] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5091] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5090] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5091] <... futex resumed>)        = 0
[pid  5090] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5091] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5090] <... futex resumed>)        = 0
[pid  5090] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5090] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5090] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5090] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5090] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5092 attached
 <unfinished ...>
[pid  5092] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5090] <... clone3 resumed> => {parent_tid=[5092]}, 88) = 5092
[pid  5092] <... rseq resumed>)         = 0
[pid  5090] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5092] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5090] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5092] <... set_robust_list resumed>) = 0
[pid  5090] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5092] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5090] <... futex resumed>)        = 0
[pid  5092] socket(AF_UNIX, SOCK_SEQPACKET, 0 <unfinished ...>
[pid  5090] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5092] <... socket resumed>)       = 7
[pid  5092] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5090] <... futex resumed>)        = 0
[pid  5092] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5090] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5092] <... bind resumed>)         = 0
[pid  5090] <... futex resumed>)        = 0
[pid  5090] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5092] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5090] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5092] <... futex resumed>)        = 0
[pid  5090] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5092] listen(7, 0)                = 0
[pid  5090] <... futex resumed>)        = 0
[pid  5090] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5092] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5090] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5092] <... futex resumed>)        = 0
[pid  5090] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5092] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5090] <... futex resumed>)        = 0
[pid  5092] <... socketpair resumed>[8, 9]) = 0
[pid  5090] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5092] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5090] <... futex resumed>)        = 0
[pid  5092] <... futex resumed>)        = 1
[pid  5090] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5092] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5090] <... futex resumed>)        = 0
[pid  5092] <... sendmsg resumed>)      = 0
[pid  5090] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5092] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5090] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5092] <... futex resumed>)        = 0
[pid  5092] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5090] exit_group(0 <unfinished ...>
[pid  5092] <... futex resumed>)        = ?
[pid  5091] <... splice resumed>)       = ?
[pid  5090] <... exit_group resumed>)   = ?
[pid  5092] +++ exited with 0 +++
[pid  5091] +++ exited with 0 +++
[pid  5090] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5093 attached
 <unfinished ...>
[pid  5093] set_robust_list(0x55555e9a66a0, 24 <unfinished ...>
[pid  5080] <... clone resumed>, child_tidptr=0x55555e9a6690) = 5093
[pid  5093] <... set_robust_list resumed>) = 0
[pid  5093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5093] setpgid(0, 0)               = 0
[pid  5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5093] write(3, "1000", 4)         = 4
[pid  5093] close(3)                    = 0
[pid  5093] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5093] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5093] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5093] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5093] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5093] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5093] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5094 attached
 <unfinished ...>
[pid  5094] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053) = 0
[pid  5093] <... clone3 resumed> => {parent_tid=[5094]}, 88) = 5094
[pid  5094] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5093] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5094] <... set_robust_list resumed>) = 0
[pid  5093] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5094] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5093] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5094] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5093] <... futex resumed>)        = 0
[pid  5094] <... socketpair resumed>[3, 4]) = 0
[pid  5093] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5094] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5093] <... futex resumed>)        = 0
[pid  5094] <... futex resumed>)        = 1
[pid  5093] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5094] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5093] <... futex resumed>)        = 0
[pid  5094] <... getsockopt resumed>{pid=5093, uid=0, gid=0}, [12]) = 0
[pid  5093] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5094] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5093] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5094] <... futex resumed>)        = 0
[pid  5093] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5094] sendmmsg(4,  <unfinished ...>
[pid  5093] <... futex resumed>)        = 0
[pid  5094] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5093, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5093] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5094] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5093] <... futex resumed>)        = 0
[pid  5094] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5093] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5094] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5093] <... futex resumed>)        = 0
[pid  5094] pipe( <unfinished ...>
[pid  5093] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5094] <... pipe resumed>[5, 6])   = 0
[pid  5094] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5093] <... futex resumed>)        = 0
[pid  5094] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5093] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5094] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5093] <... futex resumed>)        = 0
[pid  5094] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5093] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5093] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5093] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5093] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5093] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5093] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5095 attached
 <unfinished ...>
[pid  5095] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053) = 0
[pid  5093] <... clone3 resumed> => {parent_tid=[5095]}, 88) = 5095
[pid  5095] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5093] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5095] <... set_robust_list resumed>) = 0
[pid  5095] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5093] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5095] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5093] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5095] socket(AF_UNIX, SOCK_SEQPACKET, 0 <unfinished ...>
[pid  5093] <... futex resumed>)        = 0
[pid  5095] <... socket resumed>)       = 7
[pid  5093] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5095] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5093] <... futex resumed>)        = 0
[pid  5095] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5093] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5095] <... bind resumed>)         = 0
[pid  5093] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5095] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5093] <... futex resumed>)        = 0
[pid  5095] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5093] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5095] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5093] <... futex resumed>)        = 0
[pid  5095] listen(7, 0 <unfinished ...>
[pid  5093] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5095] <... listen resumed>)       = 0
[pid  5095] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5093] <... futex resumed>)        = 0
[pid  5095] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5093] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5095] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5093] <... futex resumed>)        = 0
[pid  5095] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5093] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5095] <... socketpair resumed>[8, 9]) = 0
[pid  5095] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5093] <... futex resumed>)        = 0
[pid  5095] <... futex resumed>)        = 1
[pid  5093] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5095] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5093] <... futex resumed>)        = 0
[pid  5095] <... sendmsg resumed>)      = 0
[pid  5093] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5095] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5093] <... futex resumed>)        = 0
[pid  5095] <... futex resumed>)        = 1
[pid  5095] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5093] exit_group(0 <unfinished ...>
[pid  5095] <... futex resumed>)        = ?
[pid  5094] <... splice resumed>)       = ?
[pid  5093] <... exit_group resumed>)   = ?
[pid  5095] +++ exited with 0 +++
[pid  5094] +++ exited with 0 +++
[pid  5093] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5096 attached
 <unfinished ...>
[pid  5096] set_robust_list(0x55555e9a66a0, 24 <unfinished ...>
[pid  5080] <... clone resumed>, child_tidptr=0x55555e9a6690) = 5096
[pid  5096] <... set_robust_list resumed>) = 0
[pid  5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5096] setpgid(0, 0)               = 0
[pid  5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5096] write(3, "1000", 4)         = 4
[pid  5096] close(3)                    = 0
[pid  5096] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5096] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5096] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5096] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5096] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5096] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5096] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5097 attached
 <unfinished ...>
[pid  5097] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053) = 0
[pid  5096] <... clone3 resumed> => {parent_tid=[5097]}, 88) = 5097
[pid  5097] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5096] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5097] <... set_robust_list resumed>) = 0
[pid  5096] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5097] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5096] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5097] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5096] <... futex resumed>)        = 0
[pid  5097] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5096] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5097] <... socketpair resumed>[3, 4]) = 0
[pid  5097] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5096] <... futex resumed>)        = 0
[pid  5097] <... futex resumed>)        = 1
[pid  5096] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5097] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5096] <... futex resumed>)        = 0
[pid  5096] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5097] <... getsockopt resumed>{pid=5096, uid=0, gid=0}, [12]) = 0
[pid  5097] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5096] <... futex resumed>)        = 0
[pid  5097] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5096] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5097] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5096] <... futex resumed>)        = 0
[pid  5097] sendmmsg(4,  <unfinished ...>
[pid  5096] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5097] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5096, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5097] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5096] <... futex resumed>)        = 0
[pid  5097] pipe( <unfinished ...>
[pid  5096] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5097] <... pipe resumed>[5, 6])   = 0
[pid  5096] <... futex resumed>)        = 0
[pid  5096] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5097] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5096] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5097] <... futex resumed>)        = 0
[pid  5096] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5097] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5096] <... futex resumed>)        = 0
[pid  5096] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5096] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  5096] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5096] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5096] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5096] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5096] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5098 attached
 <unfinished ...>
[pid  5098] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053) = 0
[pid  5096] <... clone3 resumed> => {parent_tid=[5098]}, 88) = 5098
[pid  5098] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5096] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5098] <... set_robust_list resumed>) = 0
[pid  5098] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5096] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5098] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5096] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5098] socket(AF_UNIX, SOCK_SEQPACKET, 0 <unfinished ...>
[pid  5096] <... futex resumed>)        = 0
[pid  5098] <... socket resumed>)       = 7
[pid  5096] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5098] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5096] <... futex resumed>)        = 0
[pid  5098] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5096] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5098] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5096] <... futex resumed>)        = 0
[pid  5098] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5096] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5098] <... bind resumed>)         = 0
[pid  5098] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5096] <... futex resumed>)        = 0
[pid  5098] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5096] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5098] listen(7, 0 <unfinished ...>
[pid  5096] <... futex resumed>)        = 0
[pid  5098] <... listen resumed>)       = 0
[pid  5096] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5098] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5096] <... futex resumed>)        = 0
[pid  5098] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5096] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5098] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5096] <... futex resumed>)        = 0
[pid  5098] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5096] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5098] <... socketpair resumed>[8, 9]) = 0
[pid  5098] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5098] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5096] <... futex resumed>)        = 0
[pid  5098] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5096] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5098] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0) = 0
[pid  5096] <... futex resumed>)        = 0
[pid  5098] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5096] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5098] <... futex resumed>)        = 0
[pid  5096] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5098] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5096] exit_group(0 <unfinished ...>
[pid  5098] <... futex resumed>)        = ?
[pid  5097] <... splice resumed>)       = ?
[pid  5096] <... exit_group resumed>)   = ?
[pid  5097] +++ exited with 0 +++
[pid  5098] +++ exited with 0 +++
[pid  5096] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5099 attached
, child_tidptr=0x55555e9a6690) = 5099
[pid  5099] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5099] setpgid(0, 0)               = 0
[pid  5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5099] write(3, "1000", 4)         = 4
[pid  5099] close(3)                    = 0
[pid  5099] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5099] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5099] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5099] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5099] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5099] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5100 attached
 <unfinished ...>
[pid  5100] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5099] <... clone3 resumed> => {parent_tid=[5100]}, 88) = 5100
[pid  5100] <... rseq resumed>)         = 0
[pid  5099] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5100] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5099] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5100] <... set_robust_list resumed>) = 0
[pid  5099] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5100] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5100] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5099] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5100] socketpair(AF_UNIX, SOCK_STREAM, 0, [3, 4]) = 0
[pid  5100] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5100] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5099] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5100] <... futex resumed>)        = 0
[pid  5100] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5099] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5100] <... getsockopt resumed>{pid=5099, uid=0, gid=0}, [12]) = 0
[pid  5100] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5100] <... futex resumed>)        = 1
[pid  5099] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5100] sendmmsg(4,  <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5100] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5099, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5099] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5100] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5100] <... futex resumed>)        = 1
[pid  5099] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5100] pipe( <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5100] <... pipe resumed>[5, 6])   = 0
[pid  5099] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5100] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5099] <... futex resumed>)        = 0
[pid  5100] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5099] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5100] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5099] <... futex resumed>)        = 0
[pid  5100] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5099] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5099] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5099] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5099] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5099] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5101 attached
 <unfinished ...>
[pid  5101] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053) = 0
[pid  5101] set_robust_list(0x7f6fbe0849a0, 24) = 0
[pid  5101] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5099] <... clone3 resumed> => {parent_tid=[5101]}, 88) = 5101
[pid  5101] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5099] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5101] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5099] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5099] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5101] <... futex resumed>)        = 0
[pid  5099] <... futex resumed>)        = 1
[pid  5101] socket(AF_UNIX, SOCK_SEQPACKET, 0) = 7
[pid  5099] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5101] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5099] <... futex resumed>)        = 0
[pid  5101] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5099] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5101] <... bind resumed>)         = 0
[pid  5099] <... futex resumed>)        = 0
[pid  5099] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5101] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5099] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5101] <... futex resumed>)        = 0
[pid  5099] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5101] listen(7, 0 <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5101] <... listen resumed>)       = 0
[pid  5099] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5101] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5099] <... futex resumed>)        = 0
[pid  5101] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5099] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5101] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5099] <... futex resumed>)        = 0
[pid  5101] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5099] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5101] <... socketpair resumed>[8, 9]) = 0
[pid  5101] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5099] <... futex resumed>)        = 0
[pid  5101] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5099] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5101] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5099] <... futex resumed>)        = 0
[pid  5101] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5099] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5101] <... sendmsg resumed>)      = 0
[pid  5101] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5099] <... futex resumed>)        = 0
[pid  5101] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5099] exit_group(0 <unfinished ...>
[pid  5101] <... futex resumed>)        = ?
[pid  5099] <... exit_group resumed>)   = ?
[pid  5101] +++ exited with 0 +++
[pid  5100] <... splice resumed>)       = ?
[pid  5100] +++ exited with 0 +++
[pid  5099] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5102 attached
, child_tidptr=0x55555e9a6690) = 5102
[pid  5102] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5102] setpgid(0, 0)               = 0
[pid  5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5102] write(3, "1000", 4)         = 4
[pid  5102] close(3)                    = 0
[pid  5102] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5102] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5102] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5102] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5102] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5102] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5102] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5103 attached
 <unfinished ...>
[pid  5103] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053) = 0
[pid  5102] <... clone3 resumed> => {parent_tid=[5103]}, 88) = 5103
[pid  5103] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5102] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5103] <... set_robust_list resumed>) = 0
[pid  5102] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5103] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5102] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5103] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5102] <... futex resumed>)        = 0
[pid  5103] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5102] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5103] <... socketpair resumed>[3, 4]) = 0
[pid  5103] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5102] <... futex resumed>)        = 0
[pid  5103] <... futex resumed>)        = 1
[pid  5102] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5103] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5102] <... futex resumed>)        = 0
[pid  5102] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5103] <... getsockopt resumed>{pid=5102, uid=0, gid=0}, [12]) = 0
[pid  5103] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5102] <... futex resumed>)        = 0
[pid  5102] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5103] <... futex resumed>)        = 1
[pid  5102] <... futex resumed>)        = 0
[pid  5103] sendmmsg(4,  <unfinished ...>
[pid  5102] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5103] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5102, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5103] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5102] <... futex resumed>)        = 0
[pid  5103] pipe( <unfinished ...>
[pid  5102] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5103] <... pipe resumed>[5, 6])   = 0
[pid  5102] <... futex resumed>)        = 0
[pid  5102] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5103] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5102] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5103] <... futex resumed>)        = 0
[pid  5102] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5103] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5102] <... futex resumed>)        = 0
[pid  5102] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5102] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5102] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5102] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5102] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5102] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5104 attached
 <unfinished ...>
[pid  5104] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5102] <... clone3 resumed> => {parent_tid=[5104]}, 88) = 5104
[pid  5104] <... rseq resumed>)         = 0
[pid  5102] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5104] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5102] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5104] <... set_robust_list resumed>) = 0
[pid  5102] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5104] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5102] <... futex resumed>)        = 0
[pid  5104] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5102] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5104] socket(AF_UNIX, SOCK_SEQPACKET, 0) = 7
[pid  5104] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5104] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5102] <... futex resumed>)        = 0
[pid  5102] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5104] <... futex resumed>)        = 0
[pid  5102] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5104] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110) = 0
[pid  5104] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5104] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5102] <... futex resumed>)        = 0
[pid  5102] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5104] <... futex resumed>)        = 0
[pid  5102] <... futex resumed>)        = 1
[pid  5104] listen(7, 0 <unfinished ...>
[pid  5102] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5104] <... listen resumed>)       = 0
[pid  5104] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5102] <... futex resumed>)        = 0
[pid  5104] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5102] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5104] <... socketpair resumed>[8, 9]) = 0
[pid  5102] <... futex resumed>)        = 0
[pid  5102] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5104] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5102] <... futex resumed>)        = 0
[pid  5104] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5102] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5104] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5102] <... futex resumed>)        = 0
[pid  5104] <... sendmsg resumed>)      = 0
[pid  5102] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5104] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5102] <... futex resumed>)        = 0
[pid  5104] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5102] exit_group(0)               = ?
[pid  5104] <... futex resumed>)        = ?
[pid  5103] <... splice resumed>)       = ?
[pid  5104] +++ exited with 0 +++
[pid  5103] +++ exited with 0 +++
[pid  5102] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555e9a6690) = 5105
./strace-static-x86_64: Process 5105 attached
[pid  5105] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5105] setpgid(0, 0)               = 0
[pid  5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5105] write(3, "1000", 4)         = 4
[pid  5105] close(3)                    = 0
[pid  5105] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5105] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5105] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5105] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5105] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5105] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5106 attached
 <unfinished ...>
[pid  5106] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5105] <... clone3 resumed> => {parent_tid=[5106]}, 88) = 5106
[pid  5106] <... rseq resumed>)         = 0
[pid  5105] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5106] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5105] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5106] <... set_robust_list resumed>) = 0
[pid  5105] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5106] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5105] <... futex resumed>)        = 0
[pid  5106] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5106] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5105] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5106] <... socketpair resumed>[3, 4]) = 0
[pid  5106] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5105] <... futex resumed>)        = 0
[pid  5106] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5105] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5106] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5105] <... futex resumed>)        = 0
[pid  5105] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5106] <... getsockopt resumed>{pid=5105, uid=0, gid=0}, [12]) = 0
[pid  5106] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5105] <... futex resumed>)        = 0
[pid  5106] <... futex resumed>)        = 1
[pid  5105] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5106] sendmmsg(4, [{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5105, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5105] <... futex resumed>)        = 0
[pid  5105] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5106] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5106] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5105] <... futex resumed>)        = 0
[pid  5105] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5106] <... futex resumed>)        = 0
[pid  5105] <... futex resumed>)        = 1
[pid  5106] pipe( <unfinished ...>
[pid  5105] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5106] <... pipe resumed>[5, 6])   = 0
[pid  5106] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5105] <... futex resumed>)        = 0
[pid  5106] <... futex resumed>)        = 1
[pid  5105] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5106] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5105] <... futex resumed>)        = 0
[pid  5105] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5105] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5105] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5105] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5105] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5107 attached
 <unfinished ...>
[pid  5107] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5105] <... clone3 resumed> => {parent_tid=[5107]}, 88) = 5107
[pid  5107] <... rseq resumed>)         = 0
[pid  5105] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5107] set_robust_list(0x7f6fbe0849a0, 24) = 0
[pid  5105] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5107] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5107] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5105] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5107] <... futex resumed>)        = 0
[pid  5107] socket(AF_UNIX, SOCK_SEQPACKET, 0 <unfinished ...>
[pid  5105] <... futex resumed>)        = 1
[pid  5107] <... socket resumed>)       = 7
[pid  5105] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5107] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5107] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5105] <... futex resumed>)        = 0
[pid  5105] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5107] <... futex resumed>)        = 0
[pid  5105] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5107] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110) = 0
[pid  5107] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5107] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5105] <... futex resumed>)        = 0
[pid  5105] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5107] <... futex resumed>)        = 0
[pid  5105] <... futex resumed>)        = 1
[pid  5107] listen(7, 0 <unfinished ...>
[pid  5105] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5107] <... listen resumed>)       = 0
[pid  5107] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5105] <... futex resumed>)        = 0
[pid  5107] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5105] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5107] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5105] <... futex resumed>)        = 0
[pid  5107] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5105] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5107] <... socketpair resumed>[8, 9]) = 0
[pid  5107] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5107] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5105] <... futex resumed>)        = 0
[pid  5105] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5107] <... futex resumed>)        = 0
[pid  5105] <... futex resumed>)        = 1
[pid  5107] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5105] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5107] <... sendmsg resumed>)      = 0
[pid  5107] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5105] <... futex resumed>)        = 0
[pid  5107] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5105] exit_group(0 <unfinished ...>
[pid  5107] <... futex resumed>)        = ?
[pid  5106] <... splice resumed>)       = ?
[pid  5105] <... exit_group resumed>)   = ?
[pid  5107] +++ exited with 0 +++
[pid  5106] +++ exited with 0 +++
[pid  5105] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, 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=0x55555e9a6690) = 5108
./strace-static-x86_64: Process 5108 attached
[pid  5108] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5108] setpgid(0, 0)               = 0
[pid  5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5108] write(3, "1000", 4)         = 4
[pid  5108] close(3)                    = 0
[pid  5108] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5108] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5108] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5108] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5108] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5108] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5109 attached
 <unfinished ...>
[pid  5109] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5108] <... clone3 resumed> => {parent_tid=[5109]}, 88) = 5109
[pid  5109] <... rseq resumed>)         = 0
[pid  5108] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5109] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5108] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5109] <... set_robust_list resumed>) = 0
[pid  5108] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5109] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5108] <... futex resumed>)        = 0
[pid  5109] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5108] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5109] <... socketpair resumed>[3, 4]) = 0
[pid  5109] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5108] <... futex resumed>)        = 0
[pid  5109] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5108] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5109] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5108] <... futex resumed>)        = 0
[pid  5109] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5108] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5109] <... getsockopt resumed>{pid=5108, uid=0, gid=0}, [12]) = 0
[pid  5109] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5108] <... futex resumed>)        = 0
[pid  5109] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5108] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5109] sendmmsg(4,  <unfinished ...>
[pid  5108] <... futex resumed>)        = 0
[pid  5109] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5108, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5108] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5109] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5109] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5108] <... futex resumed>)        = 0
[pid  5108] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5109] <... futex resumed>)        = 0
[pid  5109] pipe( <unfinished ...>
[pid  5108] <... futex resumed>)        = 1
[pid  5109] <... pipe resumed>[5, 6])   = 0
[pid  5108] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5109] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5108] <... futex resumed>)        = 0
[pid  5109] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5108] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5109] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5108] <... futex resumed>)        = 0
[pid  5109] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5108] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5108] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5108] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5108] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5108] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5110 attached
 <unfinished ...>
[pid  5110] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5108] <... clone3 resumed> => {parent_tid=[5110]}, 88) = 5110
[pid  5110] <... rseq resumed>)         = 0
[pid  5108] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5110] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5108] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5110] <... set_robust_list resumed>) = 0
[pid  5110] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5108] <... futex resumed>)        = 0
[pid  5110] socket(AF_UNIX, SOCK_SEQPACKET, 0) = 7
[pid  5108] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5110] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5108] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5110] <... futex resumed>)        = 0
[pid  5110] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5108] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5110] <... bind resumed>)         = 0
[pid  5110] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5108] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5110] <... futex resumed>)        = 0
[pid  5110] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5108] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5108] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5110] <... futex resumed>)        = 0
[pid  5108] <... futex resumed>)        = 1
[pid  5110] listen(7, 0)                = 0
[pid  5108] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5110] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5108] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5110] <... futex resumed>)        = 0
[pid  5108] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5110] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5108] <... futex resumed>)        = 0
[pid  5110] <... socketpair resumed>[8, 9]) = 0
[pid  5108] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5110] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5108] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5108] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5110] <... futex resumed>)        = 0
[pid  5110] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5108] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5110] <... sendmsg resumed>)      = 0
[pid  5110] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5108] <... futex resumed>)        = 0
[pid  5110] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5108] exit_group(0 <unfinished ...>
[pid  5110] <... futex resumed>)        = ?
[pid  5109] <... splice resumed>)       = ?
[pid  5108] <... exit_group resumed>)   = ?
[pid  5110] +++ exited with 0 +++
[pid  5109] +++ exited with 0 +++
[pid  5108] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555e9a6690) = 5111
./strace-static-x86_64: Process 5111 attached
[pid  5111] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5111] setpgid(0, 0)               = 0
[pid  5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5111] write(3, "1000", 4)         = 4
[pid  5111] close(3)                    = 0
[pid  5111] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5111] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5111] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5111] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5111] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5111] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5112 attached
 => {parent_tid=[5112]}, 88) = 5112
[pid  5112] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053) = 0
[pid  5112] set_robust_list(0x7f6fbe0a59a0, 24) = 0
[pid  5112] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5111] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5112] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5111] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5111] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5112] <... futex resumed>)        = 0
[pid  5112] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5111] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5112] <... socketpair resumed>[3, 4]) = 0
[pid  5112] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5112] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5111] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5112] <... getsockopt resumed>{pid=5111, uid=0, gid=0}, [12]) = 0
[pid  5111] <... futex resumed>)        = 0
[pid  5111] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5112] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5112] sendmmsg(4,  <unfinished ...>
[pid  5111] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5112] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5111, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5112] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5111] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5112] <... futex resumed>)        = 0
[pid  5111] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5112] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5111] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5112] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5111] <... futex resumed>)        = 0
[pid  5112] pipe( <unfinished ...>
[pid  5111] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5112] <... pipe resumed>[5, 6])   = 0
[pid  5112] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5112] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5111] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5112] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5111] <... futex resumed>)        = 0
[pid  5111] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5111] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5111] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5111] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5111] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5113 attached
 <unfinished ...>
[pid  5113] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053) = 0
[pid  5111] <... clone3 resumed> => {parent_tid=[5113]}, 88) = 5113
[pid  5113] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5111] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5113] <... set_robust_list resumed>) = 0
[pid  5111] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5113] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5111] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5113] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5111] <... futex resumed>)        = 0
[pid  5113] socket(AF_UNIX, SOCK_SEQPACKET, 0 <unfinished ...>
[pid  5111] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5113] <... socket resumed>)       = 7
[pid  5113] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5113] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5111] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5113] <... bind resumed>)         = 0
[pid  5111] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5113] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5113] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5111] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5113] <... futex resumed>)        = 0
[pid  5111] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5113] listen(7, 0)                = 0
[pid  5113] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5113] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5111] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5113] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5111] <... futex resumed>)        = 0
[pid  5113] <... socketpair resumed>[8, 9]) = 0
[pid  5111] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5113] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5111] <... futex resumed>)        = 0
[pid  5111] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5113] <... futex resumed>)        = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5113] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5111] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5113] <... sendmsg resumed>)      = 0
[pid  5113] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5113] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5111] exit_group(0 <unfinished ...>
[pid  5113] <... futex resumed>)        = ?
[pid  5111] <... exit_group resumed>)   = ?
[pid  5113] +++ exited with 0 +++
[pid  5112] <... splice resumed>)       = ?
[pid  5112] +++ exited with 0 +++
[pid  5111] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5114 attached
 <unfinished ...>
[pid  5114] set_robust_list(0x55555e9a66a0, 24 <unfinished ...>
[pid  5080] <... clone resumed>, child_tidptr=0x55555e9a6690) = 5114
[pid  5114] <... set_robust_list resumed>) = 0
[pid  5114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5114] setpgid(0, 0)               = 0
[pid  5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5114] write(3, "1000", 4)         = 4
[pid  5114] close(3)                    = 0
[pid  5114] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5114] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5114] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5114] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5114] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5114] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5114] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5115 attached
 <unfinished ...>
[pid  5115] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5114] <... clone3 resumed> => {parent_tid=[5115]}, 88) = 5115
[pid  5115] <... rseq resumed>)         = 0
[pid  5115] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5114] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5115] <... set_robust_list resumed>) = 0
[pid  5114] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5115] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5115] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5114] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5115] <... futex resumed>)        = 0
[pid  5114] <... futex resumed>)        = 1
[pid  5115] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5114] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5115] <... socketpair resumed>[3, 4]) = 0
[pid  5115] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5114] <... futex resumed>)        = 0
[pid  5115] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5114] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5115] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5114] <... futex resumed>)        = 0
[pid  5115] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5114] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5115] <... getsockopt resumed>{pid=5114, uid=0, gid=0}, [12]) = 0
[pid  5115] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5114] <... futex resumed>)        = 0
[pid  5115] sendmmsg(4,  <unfinished ...>
[pid  5114] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5115] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5114, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5114] <... futex resumed>)        = 0
[pid  5114] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5115] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5114] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5115] <... futex resumed>)        = 0
[pid  5114] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5115] pipe( <unfinished ...>
[pid  5114] <... futex resumed>)        = 0
[pid  5115] <... pipe resumed>[5, 6])   = 0
[pid  5114] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5115] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5114] <... futex resumed>)        = 0
[pid  5115] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5114] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5115] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5114] <... futex resumed>)        = 0
[pid  5114] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5114] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5114] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5114] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5114] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5114] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5116 attached
 <unfinished ...>
[pid  5116] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5114] <... clone3 resumed> => {parent_tid=[5116]}, 88) = 5116
[pid  5116] <... rseq resumed>)         = 0
[pid  5116] set_robust_list(0x7f6fbe0849a0, 24) = 0
[pid  5114] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5116] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5114] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5116] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5114] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5116] socket(AF_UNIX, SOCK_SEQPACKET, 0 <unfinished ...>
[pid  5114] <... futex resumed>)        = 0
[pid  5116] <... socket resumed>)       = 7
[pid  5114] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5116] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5114] <... futex resumed>)        = 0
[pid  5116] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5114] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5116] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5114] <... futex resumed>)        = 0
[pid  5116] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5114] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5116] <... bind resumed>)         = 0
[pid  5116] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5116] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5114] <... futex resumed>)        = 0
[pid  5114] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5116] <... futex resumed>)        = 0
[pid  5114] <... futex resumed>)        = 1
[pid  5116] listen(7, 0 <unfinished ...>
[pid  5114] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5116] <... listen resumed>)       = 0
[pid  5116] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5114] <... futex resumed>)        = 0
[pid  5116] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5114] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5116] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5114] <... futex resumed>)        = 0
[pid  5116] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5114] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5116] <... socketpair resumed>[8, 9]) = 0
[pid  5116] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5116] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5114] <... futex resumed>)        = 0
[pid  5114] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5116] <... futex resumed>)        = 0
[pid  5114] <... futex resumed>)        = 1
[pid  5116] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5114] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5116] <... sendmsg resumed>)      = 0
[pid  5116] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5114] <... futex resumed>)        = 0
[pid  5116] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5114] exit_group(0 <unfinished ...>
[pid  5116] <... futex resumed>)        = ?
[pid  5115] <... splice resumed>)       = ?
[pid  5114] <... exit_group resumed>)   = ?
[pid  5116] +++ exited with 0 +++
[pid  5115] +++ exited with 0 +++
[pid  5114] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555e9a6690) = 5117
./strace-static-x86_64: Process 5117 attached
[pid  5117] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5117] setpgid(0, 0)               = 0
[pid  5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5117] write(3, "1000", 4)         = 4
[pid  5117] close(3)                    = 0
[pid  5117] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5117] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5117] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5117] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5117] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5117] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5117] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5118 attached
 => {parent_tid=[5118]}, 88) = 5118
[pid  5117] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5117] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5118] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053) = 0
[pid  5117] <... futex resumed>)        = 0
[pid  5118] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5117] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5118] <... set_robust_list resumed>) = 0
[pid  5118] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5118] socketpair(AF_UNIX, SOCK_STREAM, 0, [3, 4]) = 0
[pid  5118] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5117] <... futex resumed>)        = 0
[pid  5118] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5117] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5118] <... getsockopt resumed>{pid=5117, uid=0, gid=0}, [12]) = 0
[pid  5117] <... futex resumed>)        = 0
[pid  5118] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5117] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5118] <... futex resumed>)        = 0
[pid  5117] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5118] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5117] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5118] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5118] sendmmsg(4,  <unfinished ...>
[pid  5117] <... futex resumed>)        = 0
[pid  5118] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5117, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5117] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5118] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5117] <... futex resumed>)        = 0
[pid  5118] <... futex resumed>)        = 1
[pid  5117] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5118] pipe( <unfinished ...>
[pid  5117] <... futex resumed>)        = 0
[pid  5118] <... pipe resumed>[5, 6])   = 0
[pid  5117] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5118] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5117] <... futex resumed>)        = 0
[pid  5118] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5117] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5118] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5117] <... futex resumed>)        = 0
[pid  5117] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5117] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  5117] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5117] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5117] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5117] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5117] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5119 attached
 => {parent_tid=[5119]}, 88) = 5119
[pid  5119] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053) = 0
[pid  5117] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5119] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5117] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5119] <... set_robust_list resumed>) = 0
[pid  5117] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5119] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5117] <... futex resumed>)        = 0
[pid  5119] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5117] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5119] socket(AF_UNIX, SOCK_SEQPACKET, 0) = 7
[pid  5119] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5117] <... futex resumed>)        = 0
[pid  5119] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5117] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5119] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5117] <... futex resumed>)        = 0
[pid  5119] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5117] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5119] <... bind resumed>)         = 0
[pid  5119] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5117] <... futex resumed>)        = 0
[pid  5119] listen(7, 0 <unfinished ...>
[pid  5117] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5117] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5119] <... listen resumed>)       = 0
[pid  5119] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5117] <... futex resumed>)        = 0
[pid  5119] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5117] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5119] <... socketpair resumed>[8, 9]) = 0
[pid  5117] <... futex resumed>)        = 0
[pid  5119] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5117] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5119] <... futex resumed>)        = 0
[pid  5117] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5119] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5117] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5119] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5117] <... futex resumed>)        = 0
[pid  5119] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5117] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5119] <... sendmsg resumed>)      = 0
[pid  5119] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5119] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5117] <... futex resumed>)        = 0
[pid  5117] exit_group(0 <unfinished ...>
[pid  5119] <... futex resumed>)        = ?
[pid  5118] <... splice resumed>)       = ?
[pid  5117] <... exit_group resumed>)   = ?
[pid  5119] +++ exited with 0 +++
[pid  5118] +++ exited with 0 +++
[pid  5117] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555e9a6690) = 5120
./strace-static-x86_64: Process 5120 attached
[pid  5120] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5120] setpgid(0, 0)               = 0
[pid  5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5120] write(3, "1000", 4)         = 4
[pid  5120] close(3)                    = 0
[pid  5120] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5120] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5120] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5120] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5120] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5120] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5120] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5121 attached
 <unfinished ...>
[pid  5121] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5120] <... clone3 resumed> => {parent_tid=[5121]}, 88) = 5121
[pid  5121] <... rseq resumed>)         = 0
[pid  5120] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5121] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5120] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5121] <... set_robust_list resumed>) = 0
[pid  5120] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5121] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5120] <... futex resumed>)        = 0
[pid  5121] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5120] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5121] socketpair(AF_UNIX, SOCK_STREAM, 0, [3, 4]) = 0
[pid  5121] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5120] <... futex resumed>)        = 0
[pid  5121] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5120] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5121] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5120] <... futex resumed>)        = 0
[pid  5121] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5120] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5121] <... getsockopt resumed>{pid=5120, uid=0, gid=0}, [12]) = 0
[pid  5121] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5120] <... futex resumed>)        = 0
[pid  5121] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5120] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5121] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5120] <... futex resumed>)        = 0
[pid  5121] sendmmsg(4,  <unfinished ...>
[pid  5120] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5121] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5120, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5121] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5120] <... futex resumed>)        = 0
[pid  5121] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5120] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5121] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5120] <... futex resumed>)        = 0
[pid  5121] pipe( <unfinished ...>
[pid  5120] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5121] <... pipe resumed>[5, 6])   = 0
[pid  5121] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5120] <... futex resumed>)        = 0
[pid  5121] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5120] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5121] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5120] <... futex resumed>)        = 0
[pid  5121] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5120] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5120] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5120] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5120] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5120] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5120] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5122 attached
 <unfinished ...>
[pid  5122] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5120] <... clone3 resumed> => {parent_tid=[5122]}, 88) = 5122
[pid  5122] <... rseq resumed>)         = 0
[pid  5120] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5122] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5120] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5122] <... set_robust_list resumed>) = 0
[pid  5120] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5122] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5120] <... futex resumed>)        = 0
[pid  5122] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5120] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5122] socket(AF_UNIX, SOCK_SEQPACKET, 0) = 7
[pid  5122] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5120] <... futex resumed>)        = 0
[pid  5122] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5120] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5122] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5122] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5120] <... futex resumed>)        = 0
[pid  5122] <... bind resumed>)         = 0
[pid  5120] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5122] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5120] <... futex resumed>)        = 0
[pid  5120] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5122] listen(7, 0 <unfinished ...>
[pid  5120] <... futex resumed>)        = 0
[pid  5122] <... listen resumed>)       = 0
[pid  5120] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5122] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5120] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5120] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5120] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5122] <... futex resumed>)        = 1
[pid  5122] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5120] <... futex resumed>)        = 0
[pid  5122] <... socketpair resumed>[8, 9]) = 0
[pid  5120] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} <unfinished ...>
[pid  5122] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5120] <... futex resumed>)        = 0
[pid  5120] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5120] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5122] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0) = 0
[pid  5122] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5120] <... futex resumed>)        = 0
[pid  5122] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5120] exit_group(0 <unfinished ...>
[pid  5122] <... futex resumed>)        = ?
[pid  5121] <... splice resumed>)       = ?
[pid  5120] <... exit_group resumed>)   = ?
[pid  5121] +++ exited with 0 +++
[pid  5122] +++ exited with 0 +++
[pid  5120] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5123 attached
 <unfinished ...>
[pid  5123] set_robust_list(0x55555e9a66a0, 24 <unfinished ...>
[pid  5080] <... clone resumed>, child_tidptr=0x55555e9a6690) = 5123
[pid  5123] <... set_robust_list resumed>) = 0
[pid  5123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5123] setpgid(0, 0)               = 0
[pid  5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5123] write(3, "1000", 4)         = 4
[pid  5123] close(3)                    = 0
[pid  5123] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5123] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5123] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5123] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5123] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5123] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5124 attached
 <unfinished ...>
[pid  5124] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053) = 0
[pid  5123] <... clone3 resumed> => {parent_tid=[5124]}, 88) = 5124
[pid  5124] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5123] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5124] <... set_robust_list resumed>) = 0
[pid  5123] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5124] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5123] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5124] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5124] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5123] <... futex resumed>)        = 0
[pid  5124] <... socketpair resumed>[3, 4]) = 0
[pid  5123] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5124] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5123] <... futex resumed>)        = 0
[pid  5124] <... futex resumed>)        = 1
[pid  5123] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5124] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5123] <... futex resumed>)        = 0
[pid  5124] <... getsockopt resumed>{pid=5123, uid=0, gid=0}, [12]) = 0
[pid  5123] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5124] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5123] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5124] <... futex resumed>)        = 0
[pid  5123] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5124] sendmmsg(4,  <unfinished ...>
[pid  5123] <... futex resumed>)        = 0
[pid  5124] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5123, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5123] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5124] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5123] <... futex resumed>)        = 0
[pid  5124] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5123] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5124] pipe( <unfinished ...>
[pid  5123] <... futex resumed>)        = 0
[pid  5124] <... pipe resumed>[5, 6])   = 0
[pid  5123] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5124] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5123] <... futex resumed>)        = 0
[pid  5124] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5123] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5123] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5123] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5123] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5123] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5123] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5125 attached
 <unfinished ...>
[pid  5125] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053) = 0
[pid  5123] <... clone3 resumed> => {parent_tid=[5125]}, 88) = 5125
[pid  5125] set_robust_list(0x7f6fbe0849a0, 24) = 0
[pid  5123] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5125] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5123] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5125] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5123] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5125] socket(AF_UNIX, SOCK_SEQPACKET, 0 <unfinished ...>
[pid  5123] <... futex resumed>)        = 0
[pid  5125] <... socket resumed>)       = 7
[pid  5123] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5125] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5123] <... futex resumed>)        = 0
[pid  5125] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5123] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5123] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5125] <... bind resumed>)         = 0
[pid  5125] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5123] <... futex resumed>)        = 0
[pid  5125] listen(7, 0 <unfinished ...>
[pid  5123] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5125] <... listen resumed>)       = 0
[pid  5123] <... futex resumed>)        = 0
[pid  5123] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5125] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5123] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5125] <... futex resumed>)        = 0
[pid  5123] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5125] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5123] <... futex resumed>)        = 0
[pid  5125] <... socketpair resumed>[8, 9]) = 0
[pid  5123] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5125] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5123] <... futex resumed>)        = 0
[pid  5125] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5123] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5125] <... sendmsg resumed>)      = 0
[pid  5123] <... futex resumed>)        = 0
[pid  5125] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5123] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5125] <... futex resumed>)        = 0
[pid  5123] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5125] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5123] exit_group(0 <unfinished ...>
[pid  5125] <... futex resumed>)        = ?
[pid  5124] <... splice resumed>)       = ?
[pid  5123] <... exit_group resumed>)   = ?
[pid  5124] +++ exited with 0 +++
[pid  5125] +++ exited with 0 +++
[pid  5123] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5126 attached
 <unfinished ...>
[pid  5126] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5126] setpgid(0, 0)               = 0
[pid  5080] <... clone resumed>, child_tidptr=0x55555e9a6690) = 5126
[pid  5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5126] write(3, "1000", 4)         = 4
[pid  5126] close(3)                    = 0
[pid  5126] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5126] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5126] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5126] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5126] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5126] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5127 attached
 <unfinished ...>
[pid  5127] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5126] <... clone3 resumed> => {parent_tid=[5127]}, 88) = 5127
[pid  5127] <... rseq resumed>)         = 0
[pid  5126] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5127] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5126] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5127] <... set_robust_list resumed>) = 0
[pid  5126] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5127] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5126] <... futex resumed>)        = 0
[pid  5127] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5126] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5127] socketpair(AF_UNIX, SOCK_STREAM, 0, [3, 4]) = 0
[pid  5127] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5126] <... futex resumed>)        = 0
[pid  5127] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5126] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5127] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5127] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5126] <... futex resumed>)        = 0
[pid  5127] <... getsockopt resumed>{pid=5126, uid=0, gid=0}, [12]) = 0
[pid  5126] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5127] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5126] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5127] <... futex resumed>)        = 0
[pid  5126] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5127] sendmmsg(4,  <unfinished ...>
[pid  5126] <... futex resumed>)        = 0
[pid  5127] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5126, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5126] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5127] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5126] <... futex resumed>)        = 0
[pid  5127] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5126] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5127] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5126] <... futex resumed>)        = 0
[pid  5127] pipe( <unfinished ...>
[pid  5126] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5127] <... pipe resumed>[5, 6])   = 0
[pid  5127] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5127] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5126] <... futex resumed>)        = 0
[pid  5127] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5126] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5127] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5126] <... futex resumed>)        = 0
[pid  5126] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5126] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  5126] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5126] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5126] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5126] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5128 attached
 <unfinished ...>
[pid  5128] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5126] <... clone3 resumed> => {parent_tid=[5128]}, 88) = 5128
[pid  5128] <... rseq resumed>)         = 0
[pid  5126] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5128] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5126] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5128] <... set_robust_list resumed>) = 0
[pid  5126] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5128] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5126] <... futex resumed>)        = 0
[pid  5128] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5126] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5128] socket(AF_UNIX, SOCK_SEQPACKET, 0) = 7
[pid  5128] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5126] <... futex resumed>)        = 0
[pid  5128] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5126] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5128] <... bind resumed>)         = 0
[pid  5126] <... futex resumed>)        = 0
[pid  5126] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5128] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5126] <... futex resumed>)        = 0
[pid  5128] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5126] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5128] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5128] listen(7, 0 <unfinished ...>
[pid  5126] <... futex resumed>)        = 0
[pid  5128] <... listen resumed>)       = 0
[pid  5126] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5128] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5126] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5128] <... futex resumed>)        = 0
[pid  5126] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5128] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5126] <... futex resumed>)        = 0
[pid  5128] <... socketpair resumed>[8, 9]) = 0
[pid  5126] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5128] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5126] <... futex resumed>)        = 0
[pid  5128] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5126] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5128] <... sendmsg resumed>)      = 0
[pid  5126] <... futex resumed>)        = 0
[pid  5126] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5128] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5126] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5128] <... futex resumed>)        = 0
[pid  5128] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5126] exit_group(0 <unfinished ...>
[pid  5128] <... futex resumed>)        = ?
[pid  5126] <... exit_group resumed>)   = ?
[pid  5128] +++ exited with 0 +++
[pid  5127] <... splice resumed>)       = ?
[pid  5127] +++ exited with 0 +++
[pid  5126] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5129 attached
 <unfinished ...>
[pid  5129] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5129] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5080] <... clone resumed>, child_tidptr=0x55555e9a6690) = 5129
[pid  5129] <... prctl resumed>)        = 0
[pid  5129] setpgid(0, 0)               = 0
[pid  5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5129] write(3, "1000", 4)         = 4
[pid  5129] close(3)                    = 0
[pid  5129] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5129] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5129] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5129] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5129] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5129] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5129] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5130 attached
 => {parent_tid=[5130]}, 88) = 5130
[pid  5130] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053) = 0
[pid  5129] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5130] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5129] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5130] <... set_robust_list resumed>) = 0
[pid  5129] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5130] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5129] <... futex resumed>)        = 0
[pid  5130] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5129] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5130] socketpair(AF_UNIX, SOCK_STREAM, 0, [3, 4]) = 0
[pid  5130] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5129] <... futex resumed>)        = 0
[pid  5130] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5129] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5130] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5129] <... futex resumed>)        = 0
[pid  5129] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5130] <... getsockopt resumed>{pid=5129, uid=0, gid=0}, [12]) = 0
[pid  5130] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5129] <... futex resumed>)        = 0
[pid  5130] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5129] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5130] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5129] <... futex resumed>)        = 0
[pid  5130] sendmmsg(4, [{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5129, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5129] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5130] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5129] <... futex resumed>)        = 0
[pid  5130] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5129] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5130] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5129] <... futex resumed>)        = 0
[pid  5130] pipe( <unfinished ...>
[pid  5129] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5130] <... pipe resumed>[5, 6])   = 0
[pid  5130] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5129] <... futex resumed>)        = 0
[pid  5130] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5129] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5129] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5129] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5129] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5129] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5129] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5129] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5131 attached
 <unfinished ...>
[pid  5131] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053) = 0
[pid  5131] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5129] <... clone3 resumed> => {parent_tid=[5131]}, 88) = 5131
[pid  5131] <... set_robust_list resumed>) = 0
[pid  5129] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5131] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5129] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5131] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5129] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5131] socket(AF_UNIX, SOCK_SEQPACKET, 0) = 7
[pid  5129] <... futex resumed>)        = 0
[pid  5129] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5131] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5129] <... futex resumed>)        = 0
[pid  5131] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5129] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5131] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5129] <... futex resumed>)        = 0
[pid  5131] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5129] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5131] <... bind resumed>)         = 0
[pid  5131] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5129] <... futex resumed>)        = 0
[pid  5131] listen(7, 0 <unfinished ...>
[pid  5129] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5131] <... listen resumed>)       = 0
[pid  5129] <... futex resumed>)        = 0
[pid  5129] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5131] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5129] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5131] <... futex resumed>)        = 0
[pid  5129] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5131] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5129] <... futex resumed>)        = 0
[pid  5131] <... socketpair resumed>[8, 9]) = 0
[pid  5129] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5131] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5129] <... futex resumed>)        = 0
[pid  5131] <... futex resumed>)        = 1
[pid  5129] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5131] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5129] <... futex resumed>)        = 0
[pid  5131] <... sendmsg resumed>)      = 0
[pid  5129] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5131] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5129] <... futex resumed>)        = 0
[pid  5131] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5129] exit_group(0 <unfinished ...>
[pid  5131] <... futex resumed>)        = ?
[pid  5129] <... exit_group resumed>)   = ?
[pid  5131] +++ exited with 0 +++
[pid  5130] <... splice resumed>)       = ?
[pid  5130] +++ exited with 0 +++
[pid  5129] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555e9a6690) = 5132
./strace-static-x86_64: Process 5132 attached
[pid  5132] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5132] setpgid(0, 0)               = 0
[pid  5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5132] write(3, "1000", 4)         = 4
[pid  5132] close(3)                    = 0
[pid  5132] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5132] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5132] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5132] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5132] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5132] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5133 attached
 <unfinished ...>
[pid  5133] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5132] <... clone3 resumed> => {parent_tid=[5133]}, 88) = 5133
[pid  5133] <... rseq resumed>)         = 0
[pid  5132] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5133] set_robust_list(0x7f6fbe0a59a0, 24) = 0
[pid  5132] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5133] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5133] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5132] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5133] <... futex resumed>)        = 0
[pid  5132] <... futex resumed>)        = 1
[pid  5133] socketpair(AF_UNIX, SOCK_STREAM, 0, [3, 4]) = 0
[pid  5132] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5133] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5132] <... futex resumed>)        = 0
[pid  5133] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5132] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5133] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5132] <... futex resumed>)        = 0
[pid  5133] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5132] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5133] <... getsockopt resumed>{pid=5132, uid=0, gid=0}, [12]) = 0
[pid  5133] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5132] <... futex resumed>)        = 0
[pid  5132] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5132] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5133] sendmmsg(4, [{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5132, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5133] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5133] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5132] <... futex resumed>)        = 0
[pid  5132] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5133] <... futex resumed>)        = 0
[pid  5132] <... futex resumed>)        = 1
[pid  5133] pipe([5, 6])                = 0
[pid  5132] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5133] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5133] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5132] <... futex resumed>)        = 0
[pid  5132] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5133] <... futex resumed>)        = 0
[pid  5132] <... futex resumed>)        = 1
[pid  5133] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5132] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5132] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5132] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5132] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5132] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5134 attached
 <unfinished ...>
[pid  5134] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053) = 0
[pid  5132] <... clone3 resumed> => {parent_tid=[5134]}, 88) = 5134
[pid  5134] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5132] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5134] <... set_robust_list resumed>) = 0
[pid  5132] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5134] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5132] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5134] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5132] <... futex resumed>)        = 0
[pid  5134] socket(AF_UNIX, SOCK_SEQPACKET, 0) = 7
[pid  5132] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5134] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5132] <... futex resumed>)        = 0
[pid  5134] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5132] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5134] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5132] <... futex resumed>)        = 0
[pid  5134] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5132] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5134] <... bind resumed>)         = 0
[pid  5134] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5132] <... futex resumed>)        = 0
[pid  5134] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5132] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5134] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5132] <... futex resumed>)        = 0
[pid  5134] listen(7, 0 <unfinished ...>
[pid  5132] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5134] <... listen resumed>)       = 0
[pid  5134] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5132] <... futex resumed>)        = 0
[pid  5134] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5132] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5134] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5132] <... futex resumed>)        = 0
[pid  5134] <... socketpair resumed>[8, 9]) = 0
[pid  5132] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5134] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5132] <... futex resumed>)        = 0
[pid  5134] <... futex resumed>)        = 1
[pid  5132] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5134] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5132] <... futex resumed>)        = 0
[pid  5134] <... sendmsg resumed>)      = 0
[pid  5132] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5134] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5132] <... futex resumed>)        = 0
[pid  5134] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5132] exit_group(0 <unfinished ...>
[pid  5134] <... futex resumed>)        = ?
[pid  5133] <... splice resumed>)       = ?
[pid  5132] <... exit_group resumed>)   = ?
[pid  5134] +++ exited with 0 +++
[pid  5133] +++ exited with 0 +++
[pid  5132] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, 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=0x55555e9a6690) = 5135
./strace-static-x86_64: Process 5135 attached
[pid  5135] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5135] setpgid(0, 0)               = 0
[pid  5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5135] write(3, "1000", 4)         = 4
[pid  5135] close(3)                    = 0
[pid  5135] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5135] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5135] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5135] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5135] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5135] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5135] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5136 attached
 => {parent_tid=[5136]}, 88) = 5136
[pid  5135] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5136] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053) = 0
[pid  5135] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5136] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5135] <... futex resumed>)        = 0
[pid  5136] <... set_robust_list resumed>) = 0
[pid  5136] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5135] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5136] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5136] socketpair(AF_UNIX, SOCK_STREAM, 0, [3, 4]) = 0
[pid  5136] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5136] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5135] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5136] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5135] <... futex resumed>)        = 0
[pid  5135] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5136] <... getsockopt resumed>{pid=5135, uid=0, gid=0}, [12]) = 0
[pid  5136] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5136] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5135] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5136] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5135] <... futex resumed>)        = 0
[pid  5136] sendmmsg(4,  <unfinished ...>
[pid  5135] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5136] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5135, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5136] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5136] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5135] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5136] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5135] <... futex resumed>)        = 0
[pid  5136] pipe( <unfinished ...>
[pid  5135] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5136] <... pipe resumed>[5, 6])   = 0
[pid  5136] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5135] <... futex resumed>)        = 0
[pid  5136] <... futex resumed>)        = 1
[pid  5135] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5136] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5135] <... futex resumed>)        = 0
[pid  5135] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5135] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  5135] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5135] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5135] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5135] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5135] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5137 attached
 <unfinished ...>
[pid  5137] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5135] <... clone3 resumed> => {parent_tid=[5137]}, 88) = 5137
[pid  5137] <... rseq resumed>)         = 0
[pid  5135] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5137] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5135] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5137] <... set_robust_list resumed>) = 0
[pid  5135] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5137] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5135] <... futex resumed>)        = 0
[pid  5137] socket(AF_UNIX, SOCK_SEQPACKET, 0 <unfinished ...>
[pid  5135] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5137] <... socket resumed>)       = 7
[pid  5137] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5137] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5135] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5137] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5135] <... futex resumed>)        = 0
[pid  5137] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5135] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5137] <... bind resumed>)         = 0
[pid  5137] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5137] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5135] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5137] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5135] <... futex resumed>)        = 0
[pid  5137] listen(7, 0 <unfinished ...>
[pid  5135] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5137] <... listen resumed>)       = 0
[pid  5137] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5137] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5135] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5137] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5135] <... futex resumed>)        = 0
[pid  5137] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5135] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5137] <... socketpair resumed>[8, 9]) = 0
[pid  5137] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5137] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5135] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5137] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5135] <... futex resumed>)        = 0
[pid  5137] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5135] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5137] <... sendmsg resumed>)      = 0
[pid  5137] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5137] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5135] exit_group(0 <unfinished ...>
[pid  5137] <... futex resumed>)        = ?
[pid  5136] <... splice resumed>)       = ?
[pid  5135] <... exit_group resumed>)   = ?
[pid  5136] +++ exited with 0 +++
[pid  5137] +++ exited with 0 +++
[pid  5135] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5138 attached
, child_tidptr=0x55555e9a6690) = 5138
[pid  5138] set_robust_list(0x55555e9a66a0, 24) = 0
[pid  5138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5138] setpgid(0, 0)               = 0
[pid  5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5138] write(3, "1000", 4)         = 4
[pid  5138] close(3)                    = 0
[pid  5138] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5138] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5138] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5138] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5138] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5138] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5138] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5139 attached
 <unfinished ...>
[pid  5139] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5138] <... clone3 resumed> => {parent_tid=[5139]}, 88) = 5139
[pid  5139] <... rseq resumed>)         = 0
[pid  5138] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5139] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5138] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5139] <... set_robust_list resumed>) = 0
[pid  5138] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5139] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5138] <... futex resumed>)        = 0
[pid  5139] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5138] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5139] socketpair(AF_UNIX, SOCK_STREAM, 0, [3, 4]) = 0
[pid  5139] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5138] <... futex resumed>)        = 0
[pid  5139] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5138] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5139] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5138] <... futex resumed>)        = 0
[pid  5139] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5138] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5139] <... getsockopt resumed>{pid=5138, uid=0, gid=0}, [12]) = 0
[pid  5139] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5138] <... futex resumed>)        = 0
[pid  5139] <... futex resumed>)        = 1
[pid  5138] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5139] sendmmsg(4,  <unfinished ...>
[pid  5138] <... futex resumed>)        = 0
[pid  5139] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5138, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5138] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5139] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5138] <... futex resumed>)        = 0
[pid  5139] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5138] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5139] pipe( <unfinished ...>
[pid  5138] <... futex resumed>)        = 0
[pid  5139] <... pipe resumed>[5, 6])   = 0
[pid  5138] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5139] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5138] <... futex resumed>)        = 0
[pid  5139] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5138] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5138] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5138] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  5138] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  5138] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5138] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5138] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5138] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5138] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5140 attached
 <unfinished ...>
[pid  5140] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053) = 0
[pid  5138] <... clone3 resumed> => {parent_tid=[5140]}, 88) = 5140
[pid  5140] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5138] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5140] <... set_robust_list resumed>) = 0
[pid  5138] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5140] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5138] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5138] <... futex resumed>)        = 0
[pid  5140] socket(AF_UNIX, SOCK_SEQPACKET, 0 <unfinished ...>
[pid  5138] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5140] <... socket resumed>)       = 7
[pid  5140] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5138] <... futex resumed>)        = 0
[pid  5140] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5138] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] <... bind resumed>)         = 0
[pid  5138] <... futex resumed>)        = 0
[pid  5138] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5140] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5138] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5140] <... futex resumed>)        = 0
[pid  5138] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] listen(7, 0 <unfinished ...>
[pid  5138] <... futex resumed>)        = 0
[pid  5140] <... listen resumed>)       = 0
[pid  5138] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5140] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5138] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5140] <... futex resumed>)        = 0
[pid  5138] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5138] <... futex resumed>)        = 0
[pid  5140] <... socketpair resumed>[8, 9]) = 0
[pid  5138] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5140] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5138] <... futex resumed>)        = 0
[pid  5140] <... futex resumed>)        = 1
[pid  5138] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5138] <... futex resumed>)        = 0
[pid  5140] <... sendmsg resumed>)      = 0
[pid  5138] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5140] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5138] <... futex resumed>)        = 0
[pid  5140] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5138] exit_group(0 <unfinished ...>
[pid  5139] <... splice resumed>)       = ?
[pid  5138] <... exit_group resumed>)   = ?
[pid  5140] <... futex resumed>)        = ?
[pid  5139] +++ exited with 0 +++
[pid  5140] +++ exited with 0 +++
[pid  5138] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5141 attached
 <unfinished ...>
[pid  5141] set_robust_list(0x55555e9a66a0, 24 <unfinished ...>
[pid  5080] <... clone resumed>, child_tidptr=0x55555e9a6690) = 5141
[pid  5141] <... set_robust_list resumed>) = 0
[pid  5141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5141] setpgid(0, 0)               = 0
[pid  5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5141] write(3, "1000", 4)         = 4
[pid  5141] close(3)                    = 0
[pid  5141] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5141] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5141] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5141] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5141] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5141] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5142 attached
 <unfinished ...>
[pid  5142] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053) = 0
[pid  5141] <... clone3 resumed> => {parent_tid=[5142]}, 88) = 5142
[pid  5142] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5141] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5142] <... set_robust_list resumed>) = 0
[pid  5142] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5141] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5142] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5141] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5142] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5141] <... futex resumed>)        = 0
[pid  5142] <... socketpair resumed>[3, 4]) = 0
[pid  5141] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5142] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5141] <... futex resumed>)        = 0
[pid  5142] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5141] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5142] <... getsockopt resumed>{pid=5141, uid=0, gid=0}, [12]) = 0
[pid  5141] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5142] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5141] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5142] <... futex resumed>)        = 0
[pid  5142] sendmmsg(4,  <unfinished ...>
[pid  5141] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5142] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5141, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5141] <... futex resumed>)        = 0
[pid  5142] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5141] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5142] <... futex resumed>)        = 0
[pid  5141] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5142] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5141] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5142] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5141] <... futex resumed>)        = 0
[pid  5142] pipe( <unfinished ...>
[pid  5141] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5142] <... pipe resumed>[5, 6])   = 0
[pid  5142] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5141] <... futex resumed>)        = 0
[pid  5142] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5141] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5142] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5141] <... futex resumed>)        = 0
[pid  5142] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5141] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5141] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  5141] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5141] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5141] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5141] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5143 attached
 <unfinished ...>
[pid  5143] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053) = 0
[pid  5141] <... clone3 resumed> => {parent_tid=[5143]}, 88) = 5143
[pid  5143] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5141] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5143] <... set_robust_list resumed>) = 0
[pid  5143] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5141] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5143] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5141] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5143] socket(AF_UNIX, SOCK_SEQPACKET, 0 <unfinished ...>
[pid  5141] <... futex resumed>)        = 0
[pid  5143] <... socket resumed>)       = 7
[pid  5141] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5143] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5141] <... futex resumed>)        = 0
[pid  5143] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5141] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5143] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110 <unfinished ...>
[pid  5141] <... futex resumed>)        = 0
[pid  5143] <... bind resumed>)         = 0
[pid  5141] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5143] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5141] <... futex resumed>)        = 0
[pid  5143] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5141] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5143] listen(7, 0 <unfinished ...>
[pid  5141] <... futex resumed>)        = 0
[pid  5143] <... listen resumed>)       = 0
[pid  5141] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5143] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5141] <... futex resumed>)        = 0
[pid  5143] <... futex resumed>)        = 1
[pid  5141] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5143] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5141] <... futex resumed>)        = 0
[pid  5143] <... socketpair resumed>[8, 9]) = 0
[pid  5141] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5143] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5141] <... futex resumed>)        = 0
[pid  5143] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0 <unfinished ...>
[pid  5141] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5143] <... sendmsg resumed>)      = 0
[pid  5141] <... futex resumed>)        = 0
[pid  5141] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5143] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5141] <... futex resumed>)        = 0
[pid  5143] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5141] exit_group(0 <unfinished ...>
[pid  5143] <... futex resumed>)        = ?
[pid  5141] <... exit_group resumed>)   = ?
[pid  5143] +++ exited with 0 +++
[pid  5142] <... splice resumed>)       = ?
[pid  5142] +++ exited with 0 +++
[pid  5141] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5144 attached
 <unfinished ...>
[pid  5144] set_robust_list(0x55555e9a66a0, 24 <unfinished ...>
[pid  5080] <... clone resumed>, child_tidptr=0x55555e9a6690) = 5144
[pid  5144] <... set_robust_list resumed>) = 0
[pid  5144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5144] setpgid(0, 0)               = 0
[pid  5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5144] write(3, "1000", 4)         = 4
[pid  5144] close(3)                    = 0
[pid  5144] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5144] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5144] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5144] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5144] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5144] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5144] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5145 attached
 <unfinished ...>
[pid  5145] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053) = 0
[pid  5144] <... clone3 resumed> => {parent_tid=[5145]}, 88) = 5145
[pid  5145] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5144] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5145] <... set_robust_list resumed>) = 0
[pid  5144] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5145] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5144] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5145] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5145] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5144] <... futex resumed>)        = 0
[pid  5145] <... socketpair resumed>[3, 4]) = 0
[pid  5144] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5145] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5144] <... futex resumed>)        = 0
[pid  5145] <... futex resumed>)        = 1
[pid  5144] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5145] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5144] <... futex resumed>)        = 0
[pid  5144] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5145] <... getsockopt resumed>{pid=5144, uid=0, gid=0}, [12]) = 0
[pid  5145] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5144] <... futex resumed>)        = 0
[pid  5145] <... futex resumed>)        = 1
[pid  5144] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5145] sendmmsg(4,  <unfinished ...>
[pid  5144] <... futex resumed>)        = 0
[pid  5145] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5144, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5144] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5145] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5144] <... futex resumed>)        = 0
[pid  5145] pipe( <unfinished ...>
[pid  5144] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5145] <... pipe resumed>[5, 6])   = 0
[pid  5144] <... futex resumed>)        = 0
[pid  5144] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5145] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5144] <... futex resumed>)        = 0
[pid  5145] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>
[pid  5144] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5144] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5144] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  5144] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5144] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe064000
[pid  5144] mprotect(0x7f6fbe065000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5144] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5144] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe084990, parent_tid=0x7f6fbe084990, exit_signal=0, stack=0x7f6fbe064000, stack_size=0x20300, tls=0x7f6fbe0846c0}./strace-static-x86_64: Process 5146 attached
 <unfinished ...>
[pid  5146] rseq(0x7f6fbe084fe0, 0x20, 0, 0x53053053) = 0
[pid  5144] <... clone3 resumed> => {parent_tid=[5146]}, 88) = 5146
[pid  5146] set_robust_list(0x7f6fbe0849a0, 24 <unfinished ...>
[pid  5144] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5146] <... set_robust_list resumed>) = 0
[pid  5144] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5146] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5144] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5146] socket(AF_UNIX, SOCK_SEQPACKET, 0 <unfinished ...>
[pid  5144] <... futex resumed>)        = 0
[pid  5146] <... socket resumed>)       = 7
[pid  5144] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5146] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5146] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5144] <... futex resumed>)        = 0
[pid  5144] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5146] <... futex resumed>)        = 0
[pid  5144] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5146] bind(7, {sa_family=AF_UNIX, sun_path=@"\x00\x21\x4e\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\x00\x00\x00\x00"}, 110) = 0
[pid  5146] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5146] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5144] <... futex resumed>)        = 0
[pid  5144] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5146] <... futex resumed>)        = 0
[pid  5144] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5146] listen(7, 0)                = 0
[pid  5146] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5144] <... futex resumed>)        = 0
[pid  5146] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5144] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5146] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5144] <... futex resumed>)        = 0
[pid  5146] socketpair(AF_UNIX, SOCK_SEQPACKET, 0,  <unfinished ...>
[pid  5144] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5146] <... socketpair resumed>[8, 9]) = 0
[pid  5146] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5144] <... futex resumed>)        = 0
[pid  5146] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5144] futex(0x7f6fbe174358, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5146] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5144] <... futex resumed>)        = 0
[pid  5146] sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=24, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[7, 0]}], msg_controllen=24, msg_flags=0}, 0) = 0
[pid  5144] futex(0x7f6fbe17435c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5146] futex(0x7f6fbe17435c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5144] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5146] <... futex resumed>)        = 0
[pid  5146] futex(0x7f6fbe174358, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5144] exit_group(0 <unfinished ...>
[pid  5146] <... futex resumed>)        = ?
[pid  5144] <... exit_group resumed>)   = ?
[pid  5146] +++ exited with 0 +++
[pid  5145] <... splice resumed>)       = ?
[pid  5145] +++ exited with 0 +++
[pid  5144] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5147 attached
 <unfinished ...>
[pid  5147] set_robust_list(0x55555e9a66a0, 24 <unfinished ...>
[pid  5080] <... clone resumed>, child_tidptr=0x55555e9a6690) = 5147
[pid  5147] <... set_robust_list resumed>) = 0
[pid  5147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5147] setpgid(0, 0)               = 0
[pid  5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5147] write(3, "1000", 4)         = 4
[pid  5147] close(3)                    = 0
[pid  5147] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5147] rt_sigaction(SIGRT_1, {sa_handler=0x7f6fbe110560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6fbe101be0}, NULL, 8) = 0
[pid  5147] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6fbe085000
[pid  5147] mprotect(0x7f6fbe086000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5147] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5147] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6fbe0a5990, parent_tid=0x7f6fbe0a5990, exit_signal=0, stack=0x7f6fbe085000, stack_size=0x20300, tls=0x7f6fbe0a56c0}./strace-static-x86_64: Process 5148 attached
 <unfinished ...>
[pid  5148] rseq(0x7f6fbe0a5fe0, 0x20, 0, 0x53053053) = 0
[pid  5148] set_robust_list(0x7f6fbe0a59a0, 24 <unfinished ...>
[pid  5147] <... clone3 resumed> => {parent_tid=[5148]}, 88) = 5148
[pid  5148] <... set_robust_list resumed>) = 0
[pid  5148] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5147] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5148] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5147] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5148] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5147] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5148] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5147] <... futex resumed>)        = 0
[pid  5148] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5147] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5148] <... socketpair resumed>[3, 4]) = 0
[pid  5148] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5147] <... futex resumed>)        = 0
[pid  5148] <... futex resumed>)        = 1
[pid  5147] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5148] getsockopt(4, SOL_SOCKET, SO_PEERCRED,  <unfinished ...>
[pid  5147] <... futex resumed>)        = 0
[pid  5148] <... getsockopt resumed>{pid=5147, uid=0, gid=0}, [12]) = 0
[pid  5147] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5148] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5147] <... futex resumed>)        = 0
[pid  5148] <... futex resumed>)        = 1
[pid  5147] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5148] sendmmsg(4,  <unfinished ...>
[pid  5147] <... futex resumed>)        = 0
[pid  5148] <... sendmmsg resumed>[{msg_hdr={msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="8", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[3]}, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=5147, uid=0, gid=0}}], msg_controllen=56, msg_flags=MSG_OOB}, msg_len=1}], 1, MSG_OOB|MSG_DONTWAIT|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL) = 1
[pid  5147] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5148] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5147] <... futex resumed>)        = 0
[pid  5148] pipe( <unfinished ...>
[pid  5147] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5148] <... pipe resumed>[5, 6])   = 0
[pid  5147] <... futex resumed>)        = 0
[pid  5148] futex(0x7f6fbe17434c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5147] futex(0x7f6fbe17434c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5148] <... futex resumed>)        = 0
[pid  5147] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5148] futex(0x7f6fbe174348, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5147] futex(0x7f6fbe174348, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5148] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5147] <... futex resumed>)        = 0
[pid  5148] splice(3, NULL, 6, NULL, 233472, 0 <unfinished ...>