./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3500794356

<...>
Warning: Permanently added '10.128.1.101' (ECDSA) to the list of known hosts.
execve("./syz-executor3500794356", ["./syz-executor3500794356"], 0x7ffdc315bdd0 /* 10 vars */) = 0
brk(NULL)                               = 0x555556423000
brk(0x555556423c40)                     = 0x555556423c40
arch_prctl(ARCH_SET_FS, 0x555556423300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
set_tid_address(0x5555564235d0)         = 3609
set_robust_list(0x5555564235e0, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f7d8ec901e0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f7d8ec908b0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f7d8ec90280, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f7d8ec908b0}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3500794356", 4096) = 28
brk(0x555556444c40)                     = 0x555556444c40
brk(0x555556445000)                     = 0x555556445000
mprotect(0x7f7d8ed50000, 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 3610 attached
, child_tidptr=0x5555564235d0) = 3610
[pid  3610] set_robust_list(0x5555564235e0, 24) = 0
[pid  3610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3610] setpgid(0, 0)               = 0
[pid  3610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3610] write(3, "1000", 4)         = 4
[pid  3610] close(3)                    = 0
[pid  3610] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3610] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3610] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3610] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3611 attached
 <unfinished ...>
[pid  3611] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3610] <... clone resumed>, parent_tid=[3611], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3611
[pid  3611] <... set_robust_list resumed>) = 0
[pid  3610] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3611] pipe( <unfinished ...>
[pid  3610] <... futex resumed>)        = 0
[pid  3611] <... pipe resumed>[3, 4])   = 0
[pid  3611] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3610] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3611] <... futex resumed>)        = 0
[pid  3611] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3610] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3610] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3610] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3611] <... futex resumed>)        = 0
[pid  3611] pipe2([5, 6], O_EXCL)       = 0
[pid  3611] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3610] <... futex resumed>)        = 0
[pid  3610] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3611] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3610] <... futex resumed>)        = 0
[pid  3610] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3610] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3610] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3610] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3610] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3610] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3612], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3612
[pid  3610] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3610] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3612 attached
 <unfinished ...>
[pid  3612] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3612] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3612] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3612] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3610] <... futex resumed>)        = 0
[   50.356939][ T3611] 
[   50.359322][ T3611] ============================================
[   50.365477][ T3611] WARNING: possible recursive locking detected
[   50.371626][ T3611] 5.19.0-rc7-syzkaller-00199-g515f71412bb7 #0 Not tainted
[   50.378727][ T3611] --------------------------------------------
[   50.384863][ T3611] syz-executor350/3611 is trying to acquire lock:
[   50.391261][ T3611] ffff888021e77468 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12f/0x1b00
[   50.400044][ T3611] 
[   50.400044][ T3611] but task is already holding lock:
[   50.407479][ T3611] ffff888021e77868 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_wait_readable+0x3d7/0x550
[   50.416888][ T3611] 
[   50.416888][ T3611] other info that might help us debug this:
[   50.424938][ T3611]  Possible unsafe locking scenario:
[   50.424938][ T3611] 
[   50.432472][ T3611]        CPU0
[   50.435864][ T3611]        ----
[   50.439127][ T3611]   lock(&pipe->mutex/1);
[   50.443467][ T3611]   lock(&pipe->mutex/1);
[   50.447821][ T3611] 
[   50.447821][ T3611]  *** DEADLOCK ***
[   50.447821][ T3611] 
[   50.455948][ T3611]  May be due to missing lock nesting notation
[   50.455948][ T3611] 
[   50.464251][ T3611] 1 lock held by syz-executor350/3611:
[   50.469696][ T3611]  #0: ffff888021e77868 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_wait_readable+0x3d7/0x550
[   50.479625][ T3611] 
[   50.479625][ T3611] stack backtrace:
[   50.485531][ T3611] CPU: 0 PID: 3611 Comm: syz-executor350 Not tainted 5.19.0-rc7-syzkaller-00199-g515f71412bb7 #0
[   50.496112][ T3611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
[   50.506180][ T3611] Call Trace:
[   50.509467][ T3611]  <TASK>
[   50.512409][ T3611]  dump_stack_lvl+0x1e3/0x2cb
[   50.517092][ T3611]  ? bfq_pos_tree_add_move+0x436/0x436
[   50.522543][ T3611]  ? panic+0x76e/0x76e
[   50.526861][ T3611]  ? print_tainted+0x145/0x170
[   50.531621][ T3611]  ? lockdep_print_held_locks+0x10f/0x1b0
[   50.537328][ T3611]  validate_chain+0x485d/0x65c0
[   50.542170][ T3611]  ? rcu_read_lock_sched_held+0x89/0x130
[   50.547796][ T3611]  ? trace_sched_overutilized_tp+0x78/0x190
[   50.553677][ T3611]  ? validate_chain+0x126/0x65c0
[   50.558615][ T3611]  ? reacquire_held_locks+0x680/0x680
[   50.563974][ T3611]  ? validate_chain+0x126/0x65c0
[   50.568916][ T3611]  ? validate_chain+0x126/0x65c0
[   50.573842][ T3611]  ? reacquire_held_locks+0x680/0x680
[   50.579199][ T3611]  ? register_lock_class+0xfe/0x9d0
[   50.584556][ T3611]  ? reacquire_held_locks+0x680/0x680
[   50.589918][ T3611]  ? reacquire_held_locks+0x680/0x680
[   50.595289][ T3611]  ? is_dynamic_key+0x1f0/0x1f0
[   50.600132][ T3611]  ? mark_lock+0x98/0x350
[   50.604500][ T3611]  __lock_acquire+0x129a/0x1f80
[   50.609349][ T3611]  lock_acquire+0x1a7/0x400
[   50.613858][ T3611]  ? pipe_write+0x12f/0x1b00
[   50.618527][ T3611]  ? read_lock_is_recursive+0x10/0x10
[   50.623888][ T3611]  ? __might_sleep+0xc0/0xc0
[   50.628485][ T3611]  ? __lock_acquire+0x129a/0x1f80
[   50.633523][ T3611]  __mutex_lock_common+0x1de/0x26c0
[   50.638713][ T3611]  ? pipe_write+0x12f/0x1b00
[   50.643295][ T3611]  ? pipe_write+0x12f/0x1b00
[   50.647963][ T3611]  ? mutex_lock_io_nested+0x60/0x60
[   50.653158][ T3611]  ? __bpf_trace_rcu_stall_warning+0x10/0x10
[   50.659215][ T3611]  ? trace_raw_output_contention_end+0xd0/0xd0
[   50.665357][ T3611]  mutex_lock_nested+0x17/0x20
[   50.670115][ T3611]  pipe_write+0x12f/0x1b00
[   50.674520][ T3611]  ? lockdep_hardirqs_on_prepare+0x448/0x7b0
[   50.680489][ T3611]  ? print_irqtrace_events+0x220/0x220
[   50.685954][ T3611]  ? pipe_wait_readable+0x3d7/0x550
[   50.691166][ T3611]  ? mutex_lock_io_nested+0x60/0x60
[   50.696375][ T3611]  ? _raw_spin_unlock_irqrestore+0xd9/0x130
[   50.702263][ T3611]  ? pipe_read+0x12a0/0x12a0
[   50.706846][ T3611]  ? finish_wait+0xc5/0x1d0
[   50.711347][ T3611]  ? mutex_lock_nested+0x17/0x20
[   50.716300][ T3611]  do_iter_readv_writev+0x499/0x650
[   50.721508][ T3611]  ? generic_file_rw_checks+0x250/0x250
[   50.727045][ T3611]  ? iter_file_splice_write+0x2a2/0xff0
[   50.732594][ T3611]  ? bpf_lsm_file_permission+0x5/0x10
[   50.737954][ T3611]  ? security_file_permission+0xe0/0x5c0
[   50.743574][ T3611]  ? do_iter_write+0x147/0x7a0
[   50.748329][ T3611]  do_iter_write+0x1f1/0x7a0
[   50.752913][ T3611]  ? vfs_iter_write+0x69/0xa0
[   50.757589][ T3611]  iter_file_splice_write+0x830/0xff0
[   50.762975][ T3611]  ? splice_from_pipe+0x220/0x220
[   50.767991][ T3611]  ? rcu_lock_release+0x9/0x20
[   50.772751][ T3611]  ? bpf_lsm_file_permission+0x5/0x10
[   50.778112][ T3611]  ? security_file_permission+0xe0/0x5c0
[   50.783819][ T3611]  ? splice_from_pipe+0x220/0x220
[   50.788832][ T3611]  do_splice+0x1105/0x1930
[   50.793260][ T3611]  ? lockdep_hardirqs_on_prepare+0x448/0x7b0
[   50.799247][ T3611]  ? print_irqtrace_events+0x220/0x220
[   50.804716][ T3611]  ? splice_file_to_pipe+0x660/0x660
[   50.810007][ T3611]  ? __fdget+0x180/0x210
[   50.814249][ T3611]  __se_sys_splice+0x2a8/0x410
[   50.819025][ T3611]  ? __x64_sys_splice+0xf0/0xf0
[   50.823877][ T3611]  ? syscall_enter_from_user_mode+0x2e/0x1a0
[   50.829852][ T3611]  ? __x64_sys_splice+0x1d/0xf0
[   50.834692][ T3611]  do_syscall_64+0x2b/0x70
[   50.839107][ T3611]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   50.845002][ T3611] RIP: 0033:0x7f7d8ecce8c9
[   50.849413][ T3611] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[   50.869015][ T3611] RSP: 002b:00007f7d8ec80308 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
[   50.877431][ T3611] RAX: ffffffffffffffda RBX: 00007f7d8ed56408 RCX: 00007f7d8ecce8c9
[   50.885422][ T3611] RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000003
[   50.893390][ T3611] RBP: 00007f7d8ed56400 R08: 00000000000001ff R09: 0000000000000000
[   50.901383][ T3611] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7d8ed5640c
[pid  3611] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3611] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3611] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3610] exit_group(0 <unfinished ...>
[pid  3611] <... futex resumed>)        = ?
[pid  3610] <... exit_group resumed>)   = ?
[pid  3611] +++ exited with 0 +++
[pid  3612] <... futex resumed>)        = ?
[pid  3612] +++ exited with 0 +++
[pid  3610] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3610, si_uid=0, si_status=0, si_utime=0, si_stime=56} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3613 attached
, child_tidptr=0x5555564235d0) = 3613
[pid  3613] set_robust_list(0x5555564235e0, 24) = 0
[pid  3613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3613] setpgid(0, 0)               = 0
[pid  3613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3613] write(3, "1000", 4)         = 4
[pid  3613] close(3)                    = 0
[pid  3613] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3613] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3613] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3614], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3614
./strace-static-x86_64: Process 3614 attached
[pid  3614] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3614] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3613] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3614] <... futex resumed>)        = 0
[pid  3614] pipe([3, 4])                = 0
[pid  3613] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3614] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3613] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3614] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3613] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3614] <... futex resumed>)        = 0
[pid  3614] pipe2([5, 6], O_EXCL)       = 0
[pid  3613] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3614] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3614] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3613] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3613] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3614] <... futex resumed>)        = 0
[pid  3614] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[   50.909350][ T3611] R13: 00007ffe0d81fdcf R14: 00007f7d8ec80400 R15: 0000000000022000
[   50.917329][ T3611]  </TASK>
[pid  3613] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3613] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3613] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3613] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3615 attached
, parent_tid=[3615], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3615
[pid  3615] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3613] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3615] <... set_robust_list resumed>) = 0
[pid  3613] <... futex resumed>)        = 0
[pid  3615] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3613] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3615] <... vmsplice resumed>)     = 1
[pid  3614] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3614] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3614] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3615] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3613] <... futex resumed>)        = 0
[pid  3613] exit_group(0 <unfinished ...>
[pid  3615] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3614] <... futex resumed>)        = ?
[pid  3613] <... exit_group resumed>)   = ?
[pid  3615] <... futex resumed>)        = ?
[pid  3614] +++ exited with 0 +++
[pid  3615] +++ exited with 0 +++
[pid  3613] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3613, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3616
./strace-static-x86_64: Process 3616 attached
[pid  3616] set_robust_list(0x5555564235e0, 24) = 0
[pid  3616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3616] setpgid(0, 0)               = 0
[pid  3616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3616] write(3, "1000", 4)         = 4
[pid  3616] close(3)                    = 0
[pid  3616] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3616] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3616] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3617 attached
, parent_tid=[3617], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3617
[pid  3617] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3617] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3616] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3617] <... futex resumed>)        = 0
[pid  3617] pipe([3, 4])                = 0
[pid  3617] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3617] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3616] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3616] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3617] <... futex resumed>)        = 0
[pid  3617] pipe2([5, 6], O_EXCL)       = 0
[pid  3616] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3617] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3616] <... futex resumed>)        = 0
[pid  3616] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3616] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3617] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3616] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3616] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3616] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3616] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3618], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3618
[pid  3616] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3616] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3618 attached
 <unfinished ...>
[pid  3618] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3618] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3617] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3617] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3617] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3618] <... vmsplice resumed>)     = 1
[pid  3618] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3616] <... futex resumed>)        = 0
[pid  3616] exit_group(0 <unfinished ...>
[pid  3617] <... futex resumed>)        = ?
[pid  3616] <... exit_group resumed>)   = ?
[pid  3617] +++ exited with 0 +++
[pid  3618] <... futex resumed>)        = ?
[pid  3618] +++ exited with 0 +++
[pid  3616] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3616, 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, child_tidptr=0x5555564235d0) = 3619
./strace-static-x86_64: Process 3619 attached
[pid  3619] set_robust_list(0x5555564235e0, 24) = 0
[pid  3619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3619] setpgid(0, 0)               = 0
[pid  3619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3619] write(3, "1000", 4)         = 4
[pid  3619] close(3)                    = 0
[pid  3619] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3619] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3619] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3620], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3620
[pid  3619] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3619] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3620 attached
 <unfinished ...>
[pid  3620] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3620] pipe([3, 4])                = 0
[pid  3620] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3619] <... futex resumed>)        = 0
[pid  3619] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3619] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3620] <... futex resumed>)        = 1
[pid  3620] pipe2([5, 6], O_EXCL)       = 0
[pid  3620] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3619] <... futex resumed>)        = 0
[pid  3619] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3619] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3620] <... futex resumed>)        = 1
[pid  3620] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3619] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3619] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3619] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3619] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3621], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3621
[pid  3619] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3619] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3621 attached
 <unfinished ...>
[pid  3621] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3621] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3620] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3620] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3620] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3621] <... vmsplice resumed>)     = 1
[pid  3621] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3619] <... futex resumed>)        = 0
[pid  3619] exit_group(0 <unfinished ...>
[pid  3620] <... futex resumed>)        = ?
[pid  3619] <... exit_group resumed>)   = ?
[pid  3620] +++ exited with 0 +++
[pid  3621] <... futex resumed>)        = ?
[pid  3621] +++ exited with 0 +++
[pid  3619] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3619, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3622
./strace-static-x86_64: Process 3622 attached
[pid  3622] set_robust_list(0x5555564235e0, 24) = 0
[pid  3622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3622] setpgid(0, 0)               = 0
[pid  3622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3622] write(3, "1000", 4)         = 4
[pid  3622] close(3)                    = 0
[pid  3622] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3622] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3622] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3622] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3623], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3623
[pid  3622] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3622] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3623 attached
 <unfinished ...>
[pid  3623] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3623] pipe([3, 4])                = 0
[pid  3623] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3622] <... futex resumed>)        = 0
[pid  3622] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3622] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3623] <... futex resumed>)        = 1
[pid  3623] pipe2([5, 6], O_EXCL)       = 0
[pid  3623] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3622] <... futex resumed>)        = 0
[pid  3622] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3622] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3623] <... futex resumed>)        = 1
[pid  3623] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3622] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3622] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3622] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3622] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3622] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3622] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3624 attached
 <unfinished ...>
[pid  3624] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3624] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3622] <... clone resumed>, parent_tid=[3624], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3624
[pid  3622] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3624] <... futex resumed>)        = 0
[pid  3624] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3622] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3623] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3623] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3623] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3624] <... vmsplice resumed>)     = 1
[pid  3624] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3624] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3622] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3622] exit_group(0 <unfinished ...>
[pid  3623] <... futex resumed>)        = ?
[pid  3622] <... exit_group resumed>)   = ?
[pid  3623] +++ exited with 0 +++
[pid  3624] <... futex resumed>)        = ?
[pid  3624] +++ exited with 0 +++
[pid  3622] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3622, 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, child_tidptr=0x5555564235d0) = 3625
./strace-static-x86_64: Process 3625 attached
[pid  3625] set_robust_list(0x5555564235e0, 24) = 0
[pid  3625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3625] setpgid(0, 0)               = 0
[pid  3625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3625] write(3, "1000", 4)         = 4
[pid  3625] close(3)                    = 0
[pid  3625] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3625] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3625] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3625] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3626], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3626
[pid  3625] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3625] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3626 attached
 <unfinished ...>
[pid  3626] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3626] pipe([3, 4])                = 0
[pid  3626] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3625] <... futex resumed>)        = 0
[pid  3625] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3625] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3626] <... futex resumed>)        = 1
[pid  3626] pipe2([5, 6], O_EXCL)       = 0
[pid  3626] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3625] <... futex resumed>)        = 0
[pid  3625] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3625] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3626] <... futex resumed>)        = 1
[pid  3626] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3625] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3625] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3625] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3625] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3625] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3627], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3627
[pid  3625] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3625] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3627 attached
 <unfinished ...>
[pid  3627] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3627] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3626] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3626] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3626] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3627] <... vmsplice resumed>)     = 1
[pid  3627] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3625] <... futex resumed>)        = 0
[pid  3625] exit_group(0 <unfinished ...>
[pid  3626] <... futex resumed>)        = ?
[pid  3625] <... exit_group resumed>)   = ?
[pid  3626] +++ exited with 0 +++
[pid  3627] <... futex resumed>)        = ?
[pid  3627] +++ exited with 0 +++
[pid  3625] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3625, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3628 attached
, child_tidptr=0x5555564235d0) = 3628
[pid  3628] set_robust_list(0x5555564235e0, 24) = 0
[pid  3628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3628] setpgid(0, 0)               = 0
[pid  3628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3628] write(3, "1000", 4)         = 4
[pid  3628] close(3)                    = 0
[pid  3628] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3628] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3628] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3629], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3629
[pid  3628] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3628] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3629 attached
 <unfinished ...>
[pid  3629] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3629] pipe([3, 4])                = 0
[pid  3629] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3628] <... futex resumed>)        = 0
[pid  3628] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3628] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3629] <... futex resumed>)        = 1
[pid  3629] pipe2([5, 6], O_EXCL)       = 0
[pid  3629] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3628] <... futex resumed>)        = 0
[pid  3628] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3628] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3629] <... futex resumed>)        = 1
[pid  3629] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3628] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3628] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3628] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3628] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3630 attached
 <unfinished ...>
[pid  3630] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3630] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3628] <... clone resumed>, parent_tid=[3630], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3630
[pid  3630] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3628] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3630] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3628] <... futex resumed>)        = 0
[pid  3628] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3630] <... vmsplice resumed>)     = 1
[pid  3630] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3628] <... futex resumed>)        = 0
[pid  3630] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3629] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3629] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3629] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3628] exit_group(0 <unfinished ...>
[pid  3630] <... futex resumed>)        = ?
[pid  3628] <... exit_group resumed>)   = ?
[pid  3630] +++ exited with 0 +++
[pid  3629] <... futex resumed>)        = ?
[pid  3629] +++ exited with 0 +++
[pid  3628] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3628, 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 3631 attached
, child_tidptr=0x5555564235d0) = 3631
[pid  3631] set_robust_list(0x5555564235e0, 24) = 0
[pid  3631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3631] setpgid(0, 0)               = 0
[pid  3631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3631] write(3, "1000", 4)         = 4
[pid  3631] close(3)                    = 0
[pid  3631] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3631] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3631] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3631] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3632 attached
, parent_tid=[3632], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3632
[pid  3632] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3632] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3631] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3632] <... futex resumed>)        = 0
[pid  3631] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3632] pipe([3, 4])                = 0
[pid  3632] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3632] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3631] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3631] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3632] <... futex resumed>)        = 0
[pid  3631] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3632] pipe2([5, 6], O_EXCL)       = 0
[pid  3632] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3631] <... futex resumed>)        = 0
[pid  3632] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3631] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3631] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3631] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3631] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3631] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3631] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3631] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3633 attached
, parent_tid=[3633], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3633
[pid  3633] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3631] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3633] <... set_robust_list resumed>) = 0
[pid  3631] <... futex resumed>)        = 0
[pid  3633] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3631] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3632] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3632] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3632] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3633] <... vmsplice resumed>)     = 1
[pid  3633] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3631] <... futex resumed>)        = 0
[pid  3633] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3631] exit_group(0 <unfinished ...>
[pid  3632] <... futex resumed>)        = ?
[pid  3631] <... exit_group resumed>)   = ?
[pid  3633] <... futex resumed>)        = ?
[pid  3632] +++ exited with 0 +++
[pid  3633] +++ exited with 0 +++
[pid  3631] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3631, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3634 attached
, child_tidptr=0x5555564235d0) = 3634
[pid  3634] set_robust_list(0x5555564235e0, 24) = 0
[pid  3634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3634] setpgid(0, 0)               = 0
[pid  3634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3634] write(3, "1000", 4)         = 4
[pid  3634] close(3)                    = 0
[pid  3634] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3634] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3634] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3635 attached
 <unfinished ...>
[pid  3635] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3634] <... clone resumed>, parent_tid=[3635], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3635
[pid  3635] <... set_robust_list resumed>) = 0
[pid  3634] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3635] pipe( <unfinished ...>
[pid  3634] <... futex resumed>)        = 0
[pid  3635] <... pipe resumed>[3, 4])   = 0
[pid  3634] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3635] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3634] <... futex resumed>)        = 0
[pid  3635] pipe2( <unfinished ...>
[pid  3634] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3635] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3635] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3634] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3635] <... futex resumed>)        = 0
[pid  3634] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3635] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3634] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3634] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3634] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3634] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3634] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3636 attached
, parent_tid=[3636], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3636
[pid  3636] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3634] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3634] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3636] <... set_robust_list resumed>) = 0
[pid  3636] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3636] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3634] <... futex resumed>)        = 0
[pid  3636] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3635] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3635] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3634] exit_group(0 <unfinished ...>
[pid  3635] ????( <unfinished ...>
[pid  3634] <... exit_group resumed>)   = ?
[pid  3636] <... futex resumed>)        = ?
[pid  3636] +++ exited with 0 +++
[pid  3635] <... ???? resumed>)         = ?
[pid  3635] +++ exited with 0 +++
[pid  3634] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3634, 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, child_tidptr=0x5555564235d0) = 3637
./strace-static-x86_64: Process 3637 attached
[pid  3637] set_robust_list(0x5555564235e0, 24) = 0
[pid  3637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3637] setpgid(0, 0)               = 0
[pid  3637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3637] write(3, "1000", 4)         = 4
[pid  3637] close(3)                    = 0
[pid  3637] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3637] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3637] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3637] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3638], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3638
[pid  3637] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3637] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3638 attached
 <unfinished ...>
[pid  3638] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3638] pipe([3, 4])                = 0
[pid  3638] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3637] <... futex resumed>)        = 0
[pid  3637] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3637] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3638] <... futex resumed>)        = 1
[pid  3638] pipe2([5, 6], O_EXCL)       = 0
[pid  3638] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3637] <... futex resumed>)        = 0
[pid  3637] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3637] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3638] <... futex resumed>)        = 1
[pid  3638] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3637] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3637] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3637] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3637] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3637] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3637] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3637] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3639], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3639
[pid  3637] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3637] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3639 attached
 <unfinished ...>
[pid  3639] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3639] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3638] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3638] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3638] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3639] <... vmsplice resumed>)     = 1
[pid  3639] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3637] <... futex resumed>)        = 0
[pid  3637] exit_group(0 <unfinished ...>
[pid  3638] <... futex resumed>)        = ?
[pid  3637] <... exit_group resumed>)   = ?
[pid  3638] +++ exited with 0 +++
[pid  3639] <... futex resumed>)        = ?
[pid  3639] +++ exited with 0 +++
[pid  3637] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3637, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3640
./strace-static-x86_64: Process 3640 attached
[pid  3640] set_robust_list(0x5555564235e0, 24) = 0
[pid  3640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3640] setpgid(0, 0)               = 0
[pid  3640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3640] write(3, "1000", 4)         = 4
[pid  3640] close(3)                    = 0
[pid  3640] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3640] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3640] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3640] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3641 attached
, parent_tid=[3641], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3641
[pid  3641] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3640] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3641] <... set_robust_list resumed>) = 0
[pid  3640] <... futex resumed>)        = 0
[pid  3640] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3641] pipe([3, 4])                = 0
[pid  3641] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3640] <... futex resumed>)        = 0
[pid  3640] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3641] pipe2( <unfinished ...>
[pid  3640] <... futex resumed>)        = 0
[pid  3640] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3641] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3641] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3640] <... futex resumed>)        = 0
[pid  3640] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3641] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3640] <... futex resumed>)        = 0
[pid  3640] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3640] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3640] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3640] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3640] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3640] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3642], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3642
[pid  3640] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3640] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3642 attached
 <unfinished ...>
[pid  3642] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3642] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3641] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3641] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3641] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3642] <... vmsplice resumed>)     = 1
[pid  3642] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3640] <... futex resumed>)        = 0
[pid  3640] exit_group(0 <unfinished ...>
[pid  3641] <... futex resumed>)        = ?
[pid  3640] <... exit_group resumed>)   = ?
[pid  3641] +++ exited with 0 +++
[pid  3642] <... futex resumed>)        = ?
[pid  3642] +++ exited with 0 +++
[pid  3640] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3640, 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, child_tidptr=0x5555564235d0) = 3643
./strace-static-x86_64: Process 3643 attached
[pid  3643] set_robust_list(0x5555564235e0, 24) = 0
[pid  3643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3643] setpgid(0, 0)               = 0
[pid  3643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3643] write(3, "1000", 4)         = 4
[pid  3643] close(3)                    = 0
[pid  3643] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3643] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3643] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3643] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3644 attached
, parent_tid=[3644], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3644
[pid  3644] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3643] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3644] <... set_robust_list resumed>) = 0
[pid  3643] <... futex resumed>)        = 0
[pid  3644] pipe( <unfinished ...>
[pid  3643] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3644] <... pipe resumed>[3, 4])   = 0
[pid  3644] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3643] <... futex resumed>)        = 0
[pid  3644] pipe2( <unfinished ...>
[pid  3643] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3644] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3643] <... futex resumed>)        = 0
[pid  3644] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3643] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3644] <... futex resumed>)        = 0
[pid  3643] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3644] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3643] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3643] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3643] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3643] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3643] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3643] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3643] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3645 attached
, parent_tid=[3645], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3645
[pid  3645] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3643] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3645] <... set_robust_list resumed>) = 0
[pid  3643] <... futex resumed>)        = 0
[pid  3645] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3643] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3644] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3644] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3644] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3645] <... vmsplice resumed>)     = 1
[pid  3645] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3643] <... futex resumed>)        = 0
[pid  3645] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3643] exit_group(0 <unfinished ...>
[pid  3645] <... futex resumed>)        = ?
[pid  3644] <... futex resumed>)        = ?
[pid  3643] <... exit_group resumed>)   = ?
[pid  3645] +++ exited with 0 +++
[pid  3644] +++ exited with 0 +++
[pid  3643] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3643, 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=0x5555564235d0) = 3646
./strace-static-x86_64: Process 3646 attached
[pid  3646] set_robust_list(0x5555564235e0, 24) = 0
[pid  3646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3646] setpgid(0, 0)               = 0
[pid  3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3646] write(3, "1000", 4)         = 4
[pid  3646] close(3)                    = 0
[pid  3646] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3646] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3646] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3646] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3647], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3647
[pid  3646] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3646] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3647 attached
 <unfinished ...>
[pid  3647] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3647] pipe([3, 4])                = 0
[pid  3647] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3646] <... futex resumed>)        = 0
[pid  3646] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3646] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3647] <... futex resumed>)        = 1
[pid  3647] pipe2([5, 6], O_EXCL)       = 0
[pid  3647] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3646] <... futex resumed>)        = 0
[pid  3646] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3646] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3647] <... futex resumed>)        = 1
[pid  3647] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3646] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3646] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3646] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3646] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3646] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3648], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3648
./strace-static-x86_64: Process 3648 attached
[pid  3646] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3648] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3646] <... futex resumed>)        = 0
[pid  3648] <... set_robust_list resumed>) = 0
[pid  3646] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3648] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3648] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3646] <... futex resumed>)        = 0
[pid  3647] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3648] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3647] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3647] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3646] exit_group(0 <unfinished ...>
[pid  3648] <... futex resumed>)        = ?
[pid  3647] <... futex resumed>)        = ?
[pid  3646] <... exit_group resumed>)   = ?
[pid  3648] +++ exited with 0 +++
[pid  3647] +++ exited with 0 +++
[pid  3646] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3646, 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=0x5555564235d0) = 3649
./strace-static-x86_64: Process 3649 attached
[pid  3649] set_robust_list(0x5555564235e0, 24) = 0
[pid  3649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3649] setpgid(0, 0)               = 0
[pid  3649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3649] write(3, "1000", 4)         = 4
[pid  3649] close(3)                    = 0
[pid  3649] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3649] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3649] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3649] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3650 attached
, parent_tid=[3650], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3650
[pid  3650] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3649] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3650] pipe( <unfinished ...>
[pid  3649] <... futex resumed>)        = 0
[pid  3649] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3650] <... pipe resumed>[3, 4])   = 0
[pid  3650] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3649] <... futex resumed>)        = 0
[pid  3650] <... futex resumed>)        = 1
[pid  3649] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3650] pipe2( <unfinished ...>
[pid  3649] <... futex resumed>)        = 0
[pid  3649] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3650] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3650] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3649] <... futex resumed>)        = 0
[pid  3650] <... futex resumed>)        = 1
[pid  3649] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3650] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3649] <... futex resumed>)        = 0
[pid  3649] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3649] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3649] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3649] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3649] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3651], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3651
[pid  3649] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3649] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3651 attached
 <unfinished ...>
[pid  3651] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3651] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3651] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3650] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3650] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3649] <... futex resumed>)        = 0
[pid  3650] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3649] exit_group(0 <unfinished ...>
[pid  3650] <... futex resumed>)        = ?
[pid  3649] <... exit_group resumed>)   = ?
[pid  3650] +++ exited with 0 +++
[pid  3651] <... futex resumed>)        = ?
[pid  3651] +++ exited with 0 +++
[pid  3649] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3649, 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, child_tidptr=0x5555564235d0) = 3652
./strace-static-x86_64: Process 3652 attached
[pid  3652] set_robust_list(0x5555564235e0, 24) = 0
[pid  3652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3652] setpgid(0, 0)               = 0
[pid  3652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3652] write(3, "1000", 4)         = 4
[pid  3652] close(3)                    = 0
[pid  3652] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3652] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3652] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3652] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3653], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3653
[pid  3652] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3652] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3653 attached
 <unfinished ...>
[pid  3653] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3653] pipe([3, 4])                = 0
[pid  3653] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3652] <... futex resumed>)        = 0
[pid  3652] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3652] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3653] <... futex resumed>)        = 1
[pid  3653] pipe2([5, 6], O_EXCL)       = 0
[pid  3653] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3652] <... futex resumed>)        = 0
[pid  3652] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3652] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3653] <... futex resumed>)        = 1
[pid  3653] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3652] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3652] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3652] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3652] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3652] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3652] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3654], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3654
[pid  3652] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3652] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3654 attached
 <unfinished ...>
[pid  3654] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3654] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3653] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3653] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3653] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3654] <... vmsplice resumed>)     = 1
[pid  3654] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3652] <... futex resumed>)        = 0
[pid  3652] exit_group(0 <unfinished ...>
[pid  3653] <... futex resumed>)        = ?
[pid  3652] <... exit_group resumed>)   = ?
[pid  3653] +++ exited with 0 +++
[pid  3654] <... futex resumed>)        = ?
[pid  3654] +++ exited with 0 +++
[pid  3652] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3652, 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, child_tidptr=0x5555564235d0) = 3655
./strace-static-x86_64: Process 3655 attached
[pid  3655] set_robust_list(0x5555564235e0, 24) = 0
[pid  3655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3655] setpgid(0, 0)               = 0
[pid  3655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3655] write(3, "1000", 4)         = 4
[pid  3655] close(3)                    = 0
[pid  3655] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3655] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3655] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3655] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3656 attached
, parent_tid=[3656], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3656
[pid  3656] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3656] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3655] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3655] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3656] <... futex resumed>)        = 0
[pid  3656] pipe([3, 4])                = 0
[pid  3656] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3655] <... futex resumed>)        = 0
[pid  3655] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3655] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3656] pipe2([5, 6], O_EXCL)       = 0
[pid  3656] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3655] <... futex resumed>)        = 0
[pid  3655] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3655] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3656] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3655] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3655] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3655] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3655] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3655] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3657], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3657
[pid  3655] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3655] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3657 attached
 <unfinished ...>
[pid  3657] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3657] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3657] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3656] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3655] <... futex resumed>)        = 0
[pid  3656] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3655] exit_group(0 <unfinished ...>
[pid  3656] <... futex resumed>)        = ?
[pid  3655] <... exit_group resumed>)   = ?
[pid  3656] +++ exited with 0 +++
[pid  3657] <... futex resumed>)        = ?
[pid  3657] +++ exited with 0 +++
[pid  3655] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3655, 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 3658 attached
, child_tidptr=0x5555564235d0) = 3658
[pid  3658] set_robust_list(0x5555564235e0, 24) = 0
[pid  3658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3658] setpgid(0, 0)               = 0
[pid  3658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3658] write(3, "1000", 4)         = 4
[pid  3658] close(3)                    = 0
[pid  3658] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3658] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3658] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3658] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3659], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3659
[pid  3658] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3658] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3659 attached
 <unfinished ...>
[pid  3659] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3659] pipe([3, 4])                = 0
[pid  3659] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3658] <... futex resumed>)        = 0
[pid  3658] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3658] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3659] <... futex resumed>)        = 1
[pid  3659] pipe2([5, 6], O_EXCL)       = 0
[pid  3659] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3658] <... futex resumed>)        = 0
[pid  3658] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3658] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3659] <... futex resumed>)        = 1
[pid  3659] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3658] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3658] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3658] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3658] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3658] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3660], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3660
./strace-static-x86_64: Process 3660 attached
[pid  3658] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3660] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3660] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3660] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3659] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3658] <... futex resumed>)        = 0
[pid  3660] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3658] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3659] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3658] exit_group(0)               = ?
[pid  3660] <... futex resumed>)        = ?
[pid  3660] +++ exited with 0 +++
[pid  3659] +++ exited with 0 +++
[pid  3658] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3658, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3661
./strace-static-x86_64: Process 3661 attached
[pid  3661] set_robust_list(0x5555564235e0, 24) = 0
[pid  3661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3661] setpgid(0, 0)               = 0
[pid  3661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3661] write(3, "1000", 4)         = 4
[pid  3661] close(3)                    = 0
[pid  3661] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3661] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3661] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3661] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3662 attached
 <unfinished ...>
[pid  3662] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3661] <... clone resumed>, parent_tid=[3662], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3662
[pid  3662] <... set_robust_list resumed>) = 0
[pid  3661] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3662] pipe( <unfinished ...>
[pid  3661] <... futex resumed>)        = 0
[pid  3661] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3662] <... pipe resumed>[3, 4])   = 0
[pid  3662] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3661] <... futex resumed>)        = 0
[pid  3662] pipe2( <unfinished ...>
[pid  3661] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3662] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3662] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3661] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3662] <... futex resumed>)        = 0
[pid  3661] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3661] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3662] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3661] <... futex resumed>)        = 0
[pid  3661] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3661] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3661] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3661] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3661] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3663 attached
, parent_tid=[3663], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3663
[pid  3663] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3661] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3663] <... set_robust_list resumed>) = 0
[pid  3661] <... futex resumed>)        = 0
[pid  3663] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3661] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3663] <... vmsplice resumed>)     = 1
[pid  3662] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3663] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3662] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3663] <... futex resumed>)        = 1
[pid  3661] <... futex resumed>)        = 0
[pid  3661] exit_group(0 <unfinished ...>
[pid  3662] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3663] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL) = ?
[pid  3662] <... futex resumed>)        = ?
[pid  3661] <... exit_group resumed>)   = ?
[pid  3662] +++ exited with 0 +++
[pid  3663] +++ exited with 0 +++
[pid  3661] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3661, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3664
./strace-static-x86_64: Process 3664 attached
[pid  3664] set_robust_list(0x5555564235e0, 24) = 0
[pid  3664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3664] setpgid(0, 0)               = 0
[pid  3664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3664] write(3, "1000", 4)         = 4
[pid  3664] close(3)                    = 0
[pid  3664] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3664] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3664] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3665 attached
, parent_tid=[3665], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3665
[pid  3664] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3664] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3665] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3665] pipe([3, 4])                = 0
[pid  3665] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3664] <... futex resumed>)        = 0
[pid  3665] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3664] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3664] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3665] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3665] pipe2([5, 6], O_EXCL)       = 0
[pid  3665] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3664] <... futex resumed>)        = 0
[pid  3664] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3664] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3665] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3664] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3664] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3664] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3664] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3666], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3666
[pid  3664] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3664] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3666 attached
 <unfinished ...>
[pid  3666] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3666] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3666] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3664] <... futex resumed>)        = 0
[pid  3666] <... futex resumed>)        = 1
[pid  3665] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3666] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3665] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3664] exit_group(0)               = ?
[pid  3666] <... futex resumed>)        = ?
[pid  3665] +++ exited with 0 +++
[pid  3666] +++ exited with 0 +++
[pid  3664] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3664, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3667
./strace-static-x86_64: Process 3667 attached
[pid  3667] set_robust_list(0x5555564235e0, 24) = 0
[pid  3667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3667] setpgid(0, 0)               = 0
[pid  3667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3667] write(3, "1000", 4)         = 4
[pid  3667] close(3)                    = 0
[pid  3667] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3667] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3667] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3667] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3668 attached
, parent_tid=[3668], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3668
[pid  3668] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3668] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3667] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3668] <... futex resumed>)        = 0
[pid  3668] pipe( <unfinished ...>
[pid  3667] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3668] <... pipe resumed>[3, 4])   = 0
[pid  3668] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3668] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3667] <... futex resumed>)        = 0
[pid  3667] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3667] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3668] <... futex resumed>)        = 0
[pid  3668] pipe2([5, 6], O_EXCL)       = 0
[pid  3668] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3668] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3667] <... futex resumed>)        = 0
[pid  3667] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3668] <... futex resumed>)        = 0
[pid  3668] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3667] <... futex resumed>)        = 1
[pid  3667] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3667] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3667] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3667] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3667] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3669], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3669
[pid  3667] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3667] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3669 attached
 <unfinished ...>
[pid  3669] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3669] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3668] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3668] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3668] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3669] <... vmsplice resumed>)     = 1
[pid  3669] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3667] <... futex resumed>)        = 0
[pid  3667] exit_group(0 <unfinished ...>
[pid  3668] <... futex resumed>)        = ?
[pid  3667] <... exit_group resumed>)   = ?
[pid  3668] +++ exited with 0 +++
[pid  3669] <... futex resumed>)        = ?
[pid  3669] +++ exited with 0 +++
[pid  3667] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3667, 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 3670 attached
, child_tidptr=0x5555564235d0) = 3670
[pid  3670] set_robust_list(0x5555564235e0, 24) = 0
[pid  3670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3670] setpgid(0, 0)               = 0
[pid  3670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3670] write(3, "1000", 4)         = 4
[pid  3670] close(3)                    = 0
[pid  3670] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3670] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3670] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3670] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3671], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3671
[pid  3670] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3670] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3671 attached
 <unfinished ...>
[pid  3671] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3671] pipe([3, 4])                = 0
[pid  3671] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3670] <... futex resumed>)        = 0
[pid  3670] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3670] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3671] <... futex resumed>)        = 1
[pid  3671] pipe2([5, 6], O_EXCL)       = 0
[pid  3671] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3670] <... futex resumed>)        = 0
[pid  3670] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3670] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3671] <... futex resumed>)        = 1
[pid  3671] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3670] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3670] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3670] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3670] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3670] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3672], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3672
[pid  3670] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3670] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3672 attached
 <unfinished ...>
[pid  3672] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3672] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3671] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3671] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3671] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3672] <... vmsplice resumed>)     = 1
[pid  3672] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3670] <... futex resumed>)        = 0
[pid  3670] exit_group(0 <unfinished ...>
[pid  3671] <... futex resumed>)        = ?
[pid  3670] <... exit_group resumed>)   = ?
[pid  3671] +++ exited with 0 +++
[pid  3672] <... futex resumed>)        = ?
[pid  3672] +++ exited with 0 +++
[pid  3670] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3670, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3673
./strace-static-x86_64: Process 3673 attached
[pid  3673] set_robust_list(0x5555564235e0, 24) = 0
[pid  3673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3673] setpgid(0, 0)               = 0
[pid  3673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3673] write(3, "1000", 4)         = 4
[pid  3673] close(3)                    = 0
[pid  3673] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3673] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3673] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3673] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3674], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3674
[pid  3673] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3673] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3674 attached
 <unfinished ...>
[pid  3674] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3674] pipe([3, 4])                = 0
[pid  3674] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3673] <... futex resumed>)        = 0
[pid  3673] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3673] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3674] <... futex resumed>)        = 1
[pid  3674] pipe2([5, 6], O_EXCL)       = 0
[pid  3674] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3673] <... futex resumed>)        = 0
[pid  3673] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3673] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3674] <... futex resumed>)        = 1
[pid  3674] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3673] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3673] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3673] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3673] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3673] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3675 attached
, parent_tid=[3675], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3675
[pid  3673] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3673] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3675] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3675] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3674] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3674] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3674] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3675] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3673] <... futex resumed>)        = 0
[pid  3673] exit_group(0)               = ?
[pid  3674] <... futex resumed>)        = ?
[pid  3674] +++ exited with 0 +++
[pid  3675] +++ exited with 0 +++
[pid  3673] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3673, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3676
./strace-static-x86_64: Process 3676 attached
[pid  3676] set_robust_list(0x5555564235e0, 24) = 0
[pid  3676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3676] setpgid(0, 0)               = 0
[pid  3676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3676] write(3, "1000", 4)         = 4
[pid  3676] close(3)                    = 0
[pid  3676] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3676] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3676] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3676] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3677 attached
, parent_tid=[3677], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3677
[pid  3676] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3676] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3677] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3677] pipe([3, 4])                = 0
[pid  3677] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3676] <... futex resumed>)        = 0
[pid  3676] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3676] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3677] pipe2([5, 6], O_EXCL)       = 0
[pid  3677] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3676] <... futex resumed>)        = 0
[pid  3676] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3677] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3676] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3676] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3676] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3676] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3676] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3678 attached
, parent_tid=[3678], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3678
[pid  3676] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3676] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3678] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3678] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3677] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3678] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3677] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3678] <... futex resumed>)        = 1
[pid  3677] <... futex resumed>)        = 0
[pid  3676] <... futex resumed>)        = 0
[pid  3676] exit_group(0)               = ?
[pid  3677] +++ exited with 0 +++
[pid  3678] +++ exited with 0 +++
[pid  3676] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3676, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3679
./strace-static-x86_64: Process 3679 attached
[pid  3679] set_robust_list(0x5555564235e0, 24) = 0
[pid  3679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3679] setpgid(0, 0)               = 0
[pid  3679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3679] write(3, "1000", 4)         = 4
[pid  3679] close(3)                    = 0
[pid  3679] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3679] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3679] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3679] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3680 attached
, parent_tid=[3680], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3680
[pid  3679] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3680] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3679] <... futex resumed>)        = 0
[pid  3680] <... set_robust_list resumed>) = 0
[pid  3679] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3680] pipe([3, 4])                = 0
[pid  3680] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3679] <... futex resumed>)        = 0
[pid  3679] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3680] pipe2( <unfinished ...>
[pid  3679] <... futex resumed>)        = 0
[pid  3679] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3680] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3680] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3679] <... futex resumed>)        = 0
[pid  3679] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3680] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3679] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3679] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3679] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3679] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3679] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3681 attached
 <unfinished ...>
[pid  3681] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3679] <... clone resumed>, parent_tid=[3681], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3681
[pid  3681] <... set_robust_list resumed>) = 0
[pid  3679] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3681] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3679] <... futex resumed>)        = 0
[pid  3679] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3681] <... vmsplice resumed>)     = 1
[pid  3681] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3679] <... futex resumed>)        = 0
[pid  3681] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3680] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3680] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3680] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3679] exit_group(0 <unfinished ...>
[pid  3681] <... futex resumed>)        = ?
[pid  3679] <... exit_group resumed>)   = ?
[pid  3681] +++ exited with 0 +++
[pid  3680] <... futex resumed>)        = ?
[pid  3680] +++ exited with 0 +++
[pid  3679] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3679, 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=0x5555564235d0) = 3682
./strace-static-x86_64: Process 3682 attached
[pid  3682] set_robust_list(0x5555564235e0, 24) = 0
[pid  3682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3682] setpgid(0, 0)               = 0
[pid  3682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3682] write(3, "1000", 4)         = 4
[pid  3682] close(3)                    = 0
[pid  3682] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3682] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3682] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3682] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3683], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3683
[pid  3682] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3682] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3683 attached
 <unfinished ...>
[pid  3683] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3683] pipe([3, 4])                = 0
[pid  3683] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3682] <... futex resumed>)        = 0
[pid  3682] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3682] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3683] <... futex resumed>)        = 1
[pid  3683] pipe2([5, 6], O_EXCL)       = 0
[pid  3683] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3682] <... futex resumed>)        = 0
[pid  3682] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3682] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3683] <... futex resumed>)        = 1
[pid  3683] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3682] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3682] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3682] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3682] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3682] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3682] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3682] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3684], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3684
[pid  3682] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3682] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3684 attached
 <unfinished ...>
[pid  3684] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3684] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3683] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3683] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3683] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3684] <... vmsplice resumed>)     = 1
[pid  3684] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3682] <... futex resumed>)        = 0
[pid  3682] exit_group(0 <unfinished ...>
[pid  3683] <... futex resumed>)        = ?
[pid  3682] <... exit_group resumed>)   = ?
[pid  3683] +++ exited with 0 +++
[pid  3684] <... futex resumed>)        = ?
[pid  3684] +++ exited with 0 +++
[pid  3682] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3682, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3685
./strace-static-x86_64: Process 3685 attached
[pid  3685] set_robust_list(0x5555564235e0, 24) = 0
[pid  3685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3685] setpgid(0, 0)               = 0
[pid  3685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3685] write(3, "1000", 4)         = 4
[pid  3685] close(3)                    = 0
[pid  3685] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3685] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3685] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3685] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3686], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3686
[pid  3685] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3685] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3686 attached
 <unfinished ...>
[pid  3686] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3686] pipe([3, 4])                = 0
[pid  3686] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3685] <... futex resumed>)        = 0
[pid  3685] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3685] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3686] <... futex resumed>)        = 1
[pid  3686] pipe2([5, 6], O_EXCL)       = 0
[pid  3686] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3685] <... futex resumed>)        = 0
[pid  3685] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3685] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3686] <... futex resumed>)        = 1
[pid  3686] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3685] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3685] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3685] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3685] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3685] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3685] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3687], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3687
[pid  3685] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3685] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3687 attached
 <unfinished ...>
[pid  3687] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3687] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3686] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3686] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3686] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3687] <... vmsplice resumed>)     = 1
[pid  3687] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3685] <... futex resumed>)        = 0
[pid  3685] exit_group(0 <unfinished ...>
[pid  3686] <... futex resumed>)        = ?
[pid  3685] <... exit_group resumed>)   = ?
[pid  3686] +++ exited with 0 +++
[pid  3687] <... futex resumed>)        = ?
[pid  3687] +++ exited with 0 +++
[pid  3685] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3685, 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, child_tidptr=0x5555564235d0) = 3688
./strace-static-x86_64: Process 3688 attached
[pid  3688] set_robust_list(0x5555564235e0, 24) = 0
[pid  3688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3688] setpgid(0, 0)               = 0
[pid  3688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3688] write(3, "1000", 4)         = 4
[pid  3688] close(3)                    = 0
[pid  3688] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3688] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3688] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3688] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3689], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3689
[pid  3688] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3688] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3689 attached
 <unfinished ...>
[pid  3689] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3689] pipe([3, 4])                = 0
[pid  3689] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3688] <... futex resumed>)        = 0
[pid  3688] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3688] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3689] <... futex resumed>)        = 1
[pid  3689] pipe2([5, 6], O_EXCL)       = 0
[pid  3689] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3688] <... futex resumed>)        = 0
[pid  3688] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3688] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3689] <... futex resumed>)        = 1
[pid  3689] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3688] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3688] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3688] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3688] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3688] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3690], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3690
[pid  3688] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3688] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3690 attached
 <unfinished ...>
[pid  3690] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3690] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3689] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3689] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3689] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3690] <... vmsplice resumed>)     = 1
[pid  3690] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3688] <... futex resumed>)        = 0
[pid  3688] exit_group(0 <unfinished ...>
[pid  3689] <... futex resumed>)        = ?
[pid  3688] <... exit_group resumed>)   = ?
[pid  3689] +++ exited with 0 +++
[pid  3690] <... futex resumed>)        = ?
[pid  3690] +++ exited with 0 +++
[pid  3688] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3688, 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, child_tidptr=0x5555564235d0) = 3691
./strace-static-x86_64: Process 3691 attached
[pid  3691] set_robust_list(0x5555564235e0, 24) = 0
[pid  3691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3691] setpgid(0, 0)               = 0
[pid  3691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3691] write(3, "1000", 4)         = 4
[pid  3691] close(3)                    = 0
[pid  3691] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3691] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3691] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3691] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3692 attached
 <unfinished ...>
[pid  3692] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3691] <... clone resumed>, parent_tid=[3692], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3692
[pid  3692] <... set_robust_list resumed>) = 0
[pid  3691] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3692] pipe( <unfinished ...>
[pid  3691] <... futex resumed>)        = 0
[pid  3692] <... pipe resumed>[3, 4])   = 0
[pid  3691] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3692] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3691] <... futex resumed>)        = 0
[pid  3692] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3691] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3692] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3691] <... futex resumed>)        = 0
[pid  3692] pipe2( <unfinished ...>
[pid  3691] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3692] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3692] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3691] <... futex resumed>)        = 0
[pid  3692] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3691] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3692] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3691] <... futex resumed>)        = 0
[pid  3692] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3691] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3691] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3691] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3691] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3691] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3693], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3693
./strace-static-x86_64: Process 3693 attached
[pid  3693] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3693] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3691] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3693] <... futex resumed>)        = 0
[pid  3693] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3693] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3693] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3692] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3692] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3691] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3692] <... futex resumed>)        = 0
[pid  3691] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3692] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3691] exit_group(0 <unfinished ...>
[pid  3692] <... futex resumed>)        = ?
[pid  3691] <... exit_group resumed>)   = ?
[pid  3693] <... futex resumed>)        = ?
[pid  3693] +++ exited with 0 +++
[pid  3692] +++ exited with 0 +++
[pid  3691] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3691, 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=0x5555564235d0) = 3694
./strace-static-x86_64: Process 3694 attached
[pid  3694] set_robust_list(0x5555564235e0, 24) = 0
[pid  3694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3694] setpgid(0, 0)               = 0
[pid  3694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3694] write(3, "1000", 4)         = 4
[pid  3694] close(3)                    = 0
[pid  3694] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3694] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3694] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3694] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3695], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3695
[pid  3694] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3694] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3695 attached
 <unfinished ...>
[pid  3695] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3695] pipe([3, 4])                = 0
[pid  3695] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3694] <... futex resumed>)        = 0
[pid  3694] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3694] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3695] <... futex resumed>)        = 1
[pid  3695] pipe2([5, 6], O_EXCL)       = 0
[pid  3695] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3694] <... futex resumed>)        = 0
[pid  3694] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3694] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3695] <... futex resumed>)        = 1
[pid  3695] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3694] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3694] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3694] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3694] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3694] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3694] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3694] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3696], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3696
[pid  3694] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3694] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3696 attached
 <unfinished ...>
[pid  3696] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3696] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3695] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3695] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3695] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3696] <... vmsplice resumed>)     = 1
[pid  3696] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3694] <... futex resumed>)        = 0
[pid  3694] exit_group(0 <unfinished ...>
[pid  3695] <... futex resumed>)        = ?
[pid  3694] <... exit_group resumed>)   = ?
[pid  3695] +++ exited with 0 +++
[pid  3696] <... futex resumed>)        = ?
[pid  3696] +++ exited with 0 +++
[pid  3694] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3694, 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=0x5555564235d0) = 3697
./strace-static-x86_64: Process 3697 attached
[pid  3697] set_robust_list(0x5555564235e0, 24) = 0
[pid  3697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3697] setpgid(0, 0)               = 0
[pid  3697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3697] write(3, "1000", 4)         = 4
[pid  3697] close(3)                    = 0
[pid  3697] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3697] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3697] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3697] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3698], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3698
[pid  3697] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3697] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3698 attached
 <unfinished ...>
[pid  3698] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3698] pipe([3, 4])                = 0
[pid  3698] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3697] <... futex resumed>)        = 0
[pid  3697] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3697] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3698] <... futex resumed>)        = 1
[pid  3698] pipe2([5, 6], O_EXCL)       = 0
[pid  3698] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3697] <... futex resumed>)        = 0
[pid  3697] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3697] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3698] <... futex resumed>)        = 1
[pid  3698] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3697] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3697] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3697] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3697] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3697] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3697] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3697] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3697] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3699], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3699
[pid  3697] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3697] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3699 attached
 <unfinished ...>
[pid  3699] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3699] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3698] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3698] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3698] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3699] <... vmsplice resumed>)     = 1
[pid  3699] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3697] <... futex resumed>)        = 0
[pid  3697] exit_group(0 <unfinished ...>
[pid  3698] <... futex resumed>)        = ?
[pid  3697] <... exit_group resumed>)   = ?
[pid  3698] +++ exited with 0 +++
[pid  3699] <... futex resumed>)        = ?
[pid  3699] +++ exited with 0 +++
[pid  3697] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3697, 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, child_tidptr=0x5555564235d0) = 3700
./strace-static-x86_64: Process 3700 attached
[pid  3700] set_robust_list(0x5555564235e0, 24) = 0
[pid  3700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3700] setpgid(0, 0)               = 0
[pid  3700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3700] write(3, "1000", 4)         = 4
[pid  3700] close(3)                    = 0
[pid  3700] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3700] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3700] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3700] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3701], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3701
[pid  3700] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3700] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3701 attached
 <unfinished ...>
[pid  3701] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3701] pipe([3, 4])                = 0
[pid  3701] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3700] <... futex resumed>)        = 0
[pid  3700] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3700] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3701] <... futex resumed>)        = 1
[pid  3701] pipe2([5, 6], O_EXCL)       = 0
[pid  3701] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3700] <... futex resumed>)        = 0
[pid  3700] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3700] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3701] <... futex resumed>)        = 1
[pid  3701] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3700] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3700] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3700] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3700] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3700] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3702], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3702
[pid  3700] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3700] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3702 attached
 <unfinished ...>
[pid  3702] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3702] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3701] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3701] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3701] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3702] <... vmsplice resumed>)     = 1
[pid  3702] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3700] <... futex resumed>)        = 0
[pid  3700] exit_group(0 <unfinished ...>
[pid  3701] <... futex resumed>)        = ?
[pid  3700] <... exit_group resumed>)   = ?
[pid  3701] +++ exited with 0 +++
[pid  3702] <... futex resumed>)        = ?
[pid  3702] +++ exited with 0 +++
[pid  3700] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3700, 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, child_tidptr=0x5555564235d0) = 3703
./strace-static-x86_64: Process 3703 attached
[pid  3703] set_robust_list(0x5555564235e0, 24) = 0
[pid  3703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3703] setpgid(0, 0)               = 0
[pid  3703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3703] write(3, "1000", 4)         = 4
[pid  3703] close(3)                    = 0
[pid  3703] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3703] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3703] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3703] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3704], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3704
[pid  3703] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3703] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3704 attached
 <unfinished ...>
[pid  3704] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3704] pipe([3, 4])                = 0
[pid  3704] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3703] <... futex resumed>)        = 0
[pid  3703] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3703] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3704] <... futex resumed>)        = 1
[pid  3704] pipe2([5, 6], O_EXCL)       = 0
[pid  3704] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3703] <... futex resumed>)        = 0
[pid  3703] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3703] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3704] <... futex resumed>)        = 1
[pid  3704] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3703] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3703] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3703] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3703] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3703] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3703] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3703] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3705], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3705
[pid  3703] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3703] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3705 attached
 <unfinished ...>
[pid  3705] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3705] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3704] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3704] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3704] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3705] <... vmsplice resumed>)     = 1
[pid  3705] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3703] <... futex resumed>)        = 0
[pid  3703] exit_group(0 <unfinished ...>
[pid  3704] <... futex resumed>)        = ?
[pid  3703] <... exit_group resumed>)   = ?
[pid  3704] +++ exited with 0 +++
[pid  3705] <... futex resumed>)        = ?
[pid  3705] +++ exited with 0 +++
[pid  3703] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3703, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3706 attached
, child_tidptr=0x5555564235d0) = 3706
[pid  3706] set_robust_list(0x5555564235e0, 24) = 0
[pid  3706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3706] setpgid(0, 0)               = 0
[pid  3706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3706] write(3, "1000", 4)         = 4
[pid  3706] close(3)                    = 0
[pid  3706] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3706] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3706] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3706] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3707 attached
, parent_tid=[3707], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3707
[pid  3707] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3707] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3706] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3707] <... futex resumed>)        = 0
[pid  3707] pipe([3, 4])                = 0
[pid  3707] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3707] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3706] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3706] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3707] <... futex resumed>)        = 0
[pid  3706] <... futex resumed>)        = 1
[pid  3707] pipe2([5, 6], O_EXCL)       = 0
[pid  3706] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3707] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3707] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3706] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3706] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3707] <... futex resumed>)        = 0
[pid  3707] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3706] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3706] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3706] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3706] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3706] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3708 attached
, parent_tid=[3708], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3708
[pid  3708] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3708] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3706] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3706] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3708] <... futex resumed>)        = 0
[pid  3708] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3707] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3707] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3707] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3708] <... vmsplice resumed>)     = 1
[pid  3708] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3706] <... futex resumed>)        = 0
[pid  3706] exit_group(0 <unfinished ...>
[pid  3707] <... futex resumed>)        = ?
[pid  3707] +++ exited with 0 +++
[pid  3706] <... exit_group resumed>)   = ?
[pid  3708] +++ exited with 0 +++
[pid  3706] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3706, 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, child_tidptr=0x5555564235d0) = 3709
./strace-static-x86_64: Process 3709 attached
[pid  3709] set_robust_list(0x5555564235e0, 24) = 0
[pid  3709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3709] setpgid(0, 0)               = 0
[pid  3709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3709] write(3, "1000", 4)         = 4
[pid  3709] close(3)                    = 0
[pid  3709] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3709] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3709] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3709] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3710 attached
, parent_tid=[3710], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3710
[pid  3710] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3710] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3709] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3709] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3710] <... futex resumed>)        = 0
[pid  3710] pipe([3, 4])                = 0
[pid  3710] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3709] <... futex resumed>)        = 0
[pid  3710] pipe2( <unfinished ...>
[pid  3709] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3710] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3709] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3710] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3709] <... futex resumed>)        = 0
[pid  3709] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3710] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3709] <... futex resumed>)        = 0
[pid  3709] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3709] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3709] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3709] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3709] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3709] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3711], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3711
./strace-static-x86_64: Process 3711 attached
[pid  3709] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3711] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3709] <... futex resumed>)        = 0
[pid  3711] <... set_robust_list resumed>) = 0
[pid  3709] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3711] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3711] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3709] <... futex resumed>)        = 0
[pid  3710] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3711] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3710] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3710] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3709] exit_group(0 <unfinished ...>
[pid  3710] <... futex resumed>)        = ?
[pid  3709] <... exit_group resumed>)   = ?
[pid  3710] +++ exited with 0 +++
[pid  3711] <... futex resumed>)        = ?
[pid  3711] +++ exited with 0 +++
[pid  3709] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3709, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3712 attached
, child_tidptr=0x5555564235d0) = 3712
[pid  3712] set_robust_list(0x5555564235e0, 24) = 0
[pid  3712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3712] setpgid(0, 0)               = 0
[pid  3712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3712] write(3, "1000", 4)         = 4
[pid  3712] close(3)                    = 0
[pid  3712] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3712] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3712] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3712] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3713], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3713
[pid  3712] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3712] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3713 attached
 <unfinished ...>
[pid  3713] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3713] pipe([3, 4])                = 0
[pid  3713] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3712] <... futex resumed>)        = 0
[pid  3712] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3712] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3713] <... futex resumed>)        = 1
[pid  3713] pipe2([5, 6], O_EXCL)       = 0
[pid  3713] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3712] <... futex resumed>)        = 0
[pid  3712] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3712] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3713] <... futex resumed>)        = 1
[pid  3713] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3712] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3712] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3712] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3712] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3712] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3712] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3714], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3714
[pid  3712] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3712] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3714 attached
 <unfinished ...>
[pid  3714] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3714] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3713] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3713] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3713] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3714] <... vmsplice resumed>)     = 1
[pid  3714] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3712] <... futex resumed>)        = 0
[pid  3712] exit_group(0 <unfinished ...>
[pid  3713] <... futex resumed>)        = ?
[pid  3712] <... exit_group resumed>)   = ?
[pid  3713] +++ exited with 0 +++
[pid  3714] <... futex resumed>)        = ?
[pid  3714] +++ exited with 0 +++
[pid  3712] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3712, 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, child_tidptr=0x5555564235d0) = 3715
./strace-static-x86_64: Process 3715 attached
[pid  3715] set_robust_list(0x5555564235e0, 24) = 0
[pid  3715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3715] setpgid(0, 0)               = 0
[pid  3715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3715] write(3, "1000", 4)         = 4
[pid  3715] close(3)                    = 0
[pid  3715] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3715] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3715] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3715] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3716], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3716
[pid  3715] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3715] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3716 attached
 <unfinished ...>
[pid  3716] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3716] pipe([3, 4])                = 0
[pid  3716] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3715] <... futex resumed>)        = 0
[pid  3715] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3715] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3716] <... futex resumed>)        = 1
[pid  3716] pipe2([5, 6], O_EXCL)       = 0
[pid  3716] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3715] <... futex resumed>)        = 0
[pid  3715] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3715] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3716] <... futex resumed>)        = 1
[pid  3716] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3715] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3715] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3715] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3715] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3715] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3715] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3717], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3717
[pid  3715] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3715] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3717 attached
 <unfinished ...>
[pid  3717] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3717] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3716] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3716] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3716] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3717] <... vmsplice resumed>)     = 1
[pid  3717] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3715] <... futex resumed>)        = 0
[pid  3715] exit_group(0 <unfinished ...>
[pid  3716] <... futex resumed>)        = ?
[pid  3715] <... exit_group resumed>)   = ?
[pid  3716] +++ exited with 0 +++
[pid  3717] <... futex resumed>)        = ?
[pid  3717] +++ exited with 0 +++
[pid  3715] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3715, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3718
./strace-static-x86_64: Process 3718 attached
[pid  3718] set_robust_list(0x5555564235e0, 24) = 0
[pid  3718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3718] setpgid(0, 0)               = 0
[pid  3718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3718] write(3, "1000", 4)         = 4
[pid  3718] close(3)                    = 0
[pid  3718] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3718] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3718] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3718] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3719], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3719
[pid  3718] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3718] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3719 attached
 <unfinished ...>
[pid  3719] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3719] pipe([3, 4])                = 0
[pid  3719] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3718] <... futex resumed>)        = 0
[pid  3718] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3718] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3719] <... futex resumed>)        = 1
[pid  3719] pipe2([5, 6], O_EXCL)       = 0
[pid  3719] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3718] <... futex resumed>)        = 0
[pid  3718] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3718] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3719] <... futex resumed>)        = 1
[pid  3719] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3718] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3718] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3718] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3718] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3718] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3720], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3720
[pid  3718] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3718] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3720 attached
 <unfinished ...>
[pid  3720] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3720] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3719] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3719] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3719] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3720] <... vmsplice resumed>)     = 1
[pid  3720] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3718] <... futex resumed>)        = 0
[pid  3718] exit_group(0 <unfinished ...>
[pid  3719] <... futex resumed>)        = ?
[pid  3718] <... exit_group resumed>)   = ?
[pid  3719] +++ exited with 0 +++
[pid  3720] <... futex resumed>)        = ?
[pid  3720] +++ exited with 0 +++
[pid  3718] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3718, 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 3721 attached
, child_tidptr=0x5555564235d0) = 3721
[pid  3721] set_robust_list(0x5555564235e0, 24) = 0
[pid  3721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3721] setpgid(0, 0)               = 0
[pid  3721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3721] write(3, "1000", 4)         = 4
[pid  3721] close(3)                    = 0
[pid  3721] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3721] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3721] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3721] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3722], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3722
[pid  3721] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3721] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3722 attached
 <unfinished ...>
[pid  3722] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3722] pipe([3, 4])                = 0
[pid  3722] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3721] <... futex resumed>)        = 0
[pid  3721] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3721] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3722] <... futex resumed>)        = 1
[pid  3722] pipe2([5, 6], O_EXCL)       = 0
[pid  3722] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3721] <... futex resumed>)        = 0
[pid  3721] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3721] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3722] <... futex resumed>)        = 1
[pid  3722] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3721] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3721] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3721] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3721] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3721] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3723 attached
, parent_tid=[3723], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3723
[pid  3723] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3723] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3721] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3723] <... futex resumed>)        = 0
[pid  3721] <... futex resumed>)        = 1
[pid  3723] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3721] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3723] <... vmsplice resumed>)     = 1
[pid  3723] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3721] <... futex resumed>)        = 0
[pid  3723] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3722] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3722] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3721] exit_group(0 <unfinished ...>
[pid  3722] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3721] <... exit_group resumed>)   = ?
[pid  3723] <... futex resumed>)        = ?
[pid  3722] <... futex resumed>)        = ?
[pid  3723] +++ exited with 0 +++
[pid  3722] +++ exited with 0 +++
[pid  3721] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3721, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3724
./strace-static-x86_64: Process 3724 attached
[pid  3724] set_robust_list(0x5555564235e0, 24) = 0
[pid  3724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3724] setpgid(0, 0)               = 0
[pid  3724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3724] write(3, "1000", 4)         = 4
[pid  3724] close(3)                    = 0
[pid  3724] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3724] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3724] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3724] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3725], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3725
[pid  3724] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3724] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3725 attached
 <unfinished ...>
[pid  3725] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3725] pipe([3, 4])                = 0
[pid  3725] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3724] <... futex resumed>)        = 0
[pid  3724] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3724] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3725] <... futex resumed>)        = 1
[pid  3725] pipe2([5, 6], O_EXCL)       = 0
[pid  3725] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3724] <... futex resumed>)        = 0
[pid  3724] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3724] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3725] <... futex resumed>)        = 1
[pid  3725] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3724] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3724] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3724] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3724] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3724] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3724] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3726], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3726
[pid  3724] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3724] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3726 attached
 <unfinished ...>
[pid  3726] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3726] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3725] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3725] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3725] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3726] <... vmsplice resumed>)     = 1
[pid  3726] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3724] <... futex resumed>)        = 0
[pid  3724] exit_group(0 <unfinished ...>
[pid  3725] <... futex resumed>)        = ?
[pid  3724] <... exit_group resumed>)   = ?
[pid  3725] +++ exited with 0 +++
[pid  3726] <... futex resumed>)        = ?
[pid  3726] +++ exited with 0 +++
[pid  3724] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3724, 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, child_tidptr=0x5555564235d0) = 3727
./strace-static-x86_64: Process 3727 attached
[pid  3727] set_robust_list(0x5555564235e0, 24) = 0
[pid  3727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3727] setpgid(0, 0)               = 0
[pid  3727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3727] write(3, "1000", 4)         = 4
[pid  3727] close(3)                    = 0
[pid  3727] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3727] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3727] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3727] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3728], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3728
./strace-static-x86_64: Process 3728 attached
[pid  3727] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3728] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3728] pipe([3, 4])                = 0
[pid  3728] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3728] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3727] <... futex resumed>)        = 1
[pid  3728] <... futex resumed>)        = 0
[pid  3727] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3728] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3727] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3727] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3728] <... futex resumed>)        = 0
[pid  3727] <... futex resumed>)        = 1
[pid  3728] pipe2([5, 6], O_EXCL)       = 0
[pid  3728] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3728] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3727] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3727] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3727] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3728] <... futex resumed>)        = 0
[pid  3728] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3727] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3727] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3727] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3727] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3727] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3727] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3729], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3729
[pid  3727] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3727] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3729 attached
 <unfinished ...>
[pid  3729] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3729] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3729] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3728] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3728] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3727] <... futex resumed>)        = 0
[pid  3728] <... futex resumed>)        = 0
[pid  3727] exit_group(0 <unfinished ...>
[pid  3728] exit_group(0 <unfinished ...>
[pid  3728] +++ exited with 0 +++
[pid  3727] <... exit_group resumed>)   = ?
[pid  3729] <... futex resumed>)        = ?
[pid  3729] +++ exited with 0 +++
[pid  3727] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3727, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3730 attached
, child_tidptr=0x5555564235d0) = 3730
[pid  3730] set_robust_list(0x5555564235e0, 24) = 0
[pid  3730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3730] setpgid(0, 0)               = 0
[pid  3730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3730] write(3, "1000", 4)         = 4
[pid  3730] close(3)                    = 0
[pid  3730] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3730] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3730] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3730] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3731 attached
, parent_tid=[3731], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3731
[pid  3731] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3731] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3730] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3730] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3731] <... futex resumed>)        = 0
[pid  3731] pipe([3, 4])                = 0
[pid  3731] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3730] <... futex resumed>)        = 0
[pid  3731] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3730] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3731] <... futex resumed>)        = 0
[pid  3730] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3731] pipe2([5, 6], O_EXCL)       = 0
[pid  3731] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3731] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3730] <... futex resumed>)        = 0
[pid  3730] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3731] <... futex resumed>)        = 0
[pid  3730] <... futex resumed>)        = 1
[pid  3731] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3730] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3730] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3730] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3730] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3730] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3730] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3732], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3732
[pid  3730] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3730] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3732 attached
 <unfinished ...>
[pid  3732] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3732] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3731] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3731] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3731] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3732] <... vmsplice resumed>)     = 1
[pid  3732] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3730] <... futex resumed>)        = 0
[pid  3730] exit_group(0 <unfinished ...>
[pid  3731] <... futex resumed>)        = ?
[pid  3730] <... exit_group resumed>)   = ?
[pid  3731] +++ exited with 0 +++
[pid  3732] <... futex resumed>)        = ?
[pid  3732] +++ exited with 0 +++
[pid  3730] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3730, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3733
./strace-static-x86_64: Process 3733 attached
[pid  3733] set_robust_list(0x5555564235e0, 24) = 0
[pid  3733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3733] setpgid(0, 0)               = 0
[pid  3733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3733] write(3, "1000", 4)         = 4
[pid  3733] close(3)                    = 0
[pid  3733] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3733] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3733] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3733] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3734], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3734
[pid  3733] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3733] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3734 attached
 <unfinished ...>
[pid  3734] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3734] pipe([3, 4])                = 0
[pid  3734] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3733] <... futex resumed>)        = 0
[pid  3733] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3733] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3734] <... futex resumed>)        = 1
[pid  3734] pipe2([5, 6], O_EXCL)       = 0
[pid  3734] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3733] <... futex resumed>)        = 0
[pid  3733] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3733] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3734] <... futex resumed>)        = 1
[pid  3734] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3733] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3733] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3733] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3733] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3733] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3735], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3735
[pid  3733] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3733] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3735 attached
 <unfinished ...>
[pid  3735] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3735] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3734] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3734] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3734] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3735] <... vmsplice resumed>)     = 1
[pid  3735] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3733] <... futex resumed>)        = 0
[pid  3733] exit_group(0 <unfinished ...>
[pid  3734] <... futex resumed>)        = ?
[pid  3733] <... exit_group resumed>)   = ?
[pid  3734] +++ exited with 0 +++
[pid  3735] <... futex resumed>)        = ?
[pid  3735] +++ exited with 0 +++
[pid  3733] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3733, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3736
./strace-static-x86_64: Process 3736 attached
[pid  3736] set_robust_list(0x5555564235e0, 24) = 0
[pid  3736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3736] setpgid(0, 0)               = 0
[pid  3736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3736] write(3, "1000", 4)         = 4
[pid  3736] close(3)                    = 0
[pid  3736] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3736] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3736] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3736] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3737], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3737
[pid  3736] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3736] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3737 attached
 <unfinished ...>
[pid  3737] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3737] pipe([3, 4])                = 0
[pid  3737] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3736] <... futex resumed>)        = 0
[pid  3736] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3736] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3737] <... futex resumed>)        = 1
[pid  3737] pipe2([5, 6], O_EXCL)       = 0
[pid  3737] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3736] <... futex resumed>)        = 0
[pid  3736] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3736] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3737] <... futex resumed>)        = 1
[pid  3737] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3736] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3736] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3736] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3736] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3736] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3738 attached
, parent_tid=[3738], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3738
[pid  3738] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3738] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3736] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3736] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3738] <... futex resumed>)        = 0
[pid  3738] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3738] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3736] <... futex resumed>)        = 0
[pid  3738] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3737] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3737] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3736] exit_group(0)               = ?
[pid  3738] <... futex resumed>)        = ?
[pid  3738] +++ exited with 0 +++
[pid  3737] +++ exited with 0 +++
[pid  3736] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3736, 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, child_tidptr=0x5555564235d0) = 3739
./strace-static-x86_64: Process 3739 attached
[pid  3739] set_robust_list(0x5555564235e0, 24) = 0
[pid  3739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3739] setpgid(0, 0)               = 0
[pid  3739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3739] write(3, "1000", 4)         = 4
[pid  3739] close(3)                    = 0
[pid  3739] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3739] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3739] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3739] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3740 attached
, parent_tid=[3740], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3740
[pid  3740] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3739] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3740] <... set_robust_list resumed>) = 0
[pid  3739] <... futex resumed>)        = 0
[pid  3740] pipe( <unfinished ...>
[pid  3739] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3740] <... pipe resumed>[3, 4])   = 0
[pid  3740] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3740] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3739] <... futex resumed>)        = 0
[pid  3739] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3740] <... futex resumed>)        = 0
[pid  3739] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3740] pipe2([5, 6], O_EXCL)       = 0
[pid  3740] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3740] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3739] <... futex resumed>)        = 0
[pid  3739] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3740] <... futex resumed>)        = 0
[pid  3739] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3740] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3739] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3739] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3739] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3739] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3739] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3739] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3739] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3739] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3741 attached
, parent_tid=[3741], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3741
[pid  3741] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3739] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3741] <... set_robust_list resumed>) = 0
[pid  3739] <... futex resumed>)        = 0
[pid  3741] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3739] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3740] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3740] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3740] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3741] <... vmsplice resumed>)     = 1
[pid  3741] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3739] <... futex resumed>)        = 0
[pid  3741] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3739] exit_group(0 <unfinished ...>
[pid  3740] <... futex resumed>)        = ?
[pid  3739] <... exit_group resumed>)   = ?
[pid  3740] +++ exited with 0 +++
[pid  3741] <... futex resumed>)        = ?
[pid  3741] +++ exited with 0 +++
[pid  3739] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3739, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3742 attached
, child_tidptr=0x5555564235d0) = 3742
[pid  3742] set_robust_list(0x5555564235e0, 24) = 0
[pid  3742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3742] setpgid(0, 0)               = 0
[pid  3742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3742] write(3, "1000", 4)         = 4
[pid  3742] close(3)                    = 0
[pid  3742] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3742] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3742] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3742] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3743 attached
, parent_tid=[3743], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3743
[pid  3743] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3742] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3743] <... set_robust_list resumed>) = 0
[pid  3742] <... futex resumed>)        = 0
[pid  3743] pipe( <unfinished ...>
[pid  3742] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3743] <... pipe resumed>[3, 4])   = 0
[pid  3743] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3742] <... futex resumed>)        = 0
[pid  3743] pipe2( <unfinished ...>
[pid  3742] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3743] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3742] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3743] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3742] <... futex resumed>)        = 0
[pid  3742] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3742] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3743] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3742] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3742] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3742] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3742] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3742] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3744 attached
, parent_tid=[3744], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3744
[pid  3744] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3742] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3744] <... set_robust_list resumed>) = 0
[pid  3744] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3743] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3744] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3743] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3742] <... futex resumed>)        = 0
[pid  3744] <... futex resumed>)        = 0
[pid  3743] <... futex resumed>)        = 0
[pid  3744] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3743] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3742] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3742] exit_group(0 <unfinished ...>
[pid  3744] <... futex resumed>)        = ?
[pid  3743] <... futex resumed>)        = ?
[pid  3742] <... exit_group resumed>)   = ?
[pid  3744] +++ exited with 0 +++
[pid  3743] +++ exited with 0 +++
[pid  3742] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3742, 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 3745 attached
, child_tidptr=0x5555564235d0) = 3745
[pid  3745] set_robust_list(0x5555564235e0, 24) = 0
[pid  3745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3745] setpgid(0, 0)               = 0
[pid  3745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3745] write(3, "1000", 4)         = 4
[pid  3745] close(3)                    = 0
[pid  3745] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3745] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3745] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3745] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3746], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3746
[pid  3745] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3745] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3746 attached
 <unfinished ...>
[pid  3746] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3746] pipe([3, 4])                = 0
[pid  3746] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3745] <... futex resumed>)        = 0
[pid  3745] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3745] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3746] <... futex resumed>)        = 1
[pid  3746] pipe2([5, 6], O_EXCL)       = 0
[pid  3746] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3745] <... futex resumed>)        = 0
[pid  3745] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3745] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3746] <... futex resumed>)        = 1
[pid  3746] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3745] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3745] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3745] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3745] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3745] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3745] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3745] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3745] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3747], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3747
[pid  3745] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3745] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3747 attached
 <unfinished ...>
[pid  3747] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3747] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3746] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3746] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3746] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3747] <... vmsplice resumed>)     = 1
[pid  3747] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3745] <... futex resumed>)        = 0
[pid  3745] exit_group(0)               = ?
[pid  3746] <... futex resumed>)        = ?
[pid  3747] <... futex resumed>)        = ?
[pid  3746] +++ exited with 0 +++
[pid  3747] +++ exited with 0 +++
[pid  3745] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3745, 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 3748 attached
, child_tidptr=0x5555564235d0) = 3748
[pid  3748] set_robust_list(0x5555564235e0, 24) = 0
[pid  3748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3748] setpgid(0, 0)               = 0
[pid  3748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3748] write(3, "1000", 4)         = 4
[pid  3748] close(3)                    = 0
[pid  3748] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3748] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3748] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3748] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3749], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3749
./strace-static-x86_64: Process 3749 attached
[pid  3749] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3749] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3748] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3749] <... futex resumed>)        = 0
[pid  3749] pipe([3, 4])                = 0
[pid  3748] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3749] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3749] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3748] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3748] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3749] <... futex resumed>)        = 0
[pid  3749] pipe2( <unfinished ...>
[pid  3748] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3749] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3749] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3749] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3748] <... futex resumed>)        = 0
[pid  3748] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3749] <... futex resumed>)        = 0
[pid  3748] <... futex resumed>)        = 1
[pid  3749] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3748] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3748] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3748] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3748] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3748] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3750 attached
, parent_tid=[3750], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3750
[pid  3750] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3750] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3748] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3750] <... futex resumed>)        = 0
[pid  3750] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3749] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3748] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3749] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3750] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3749] <... futex resumed>)        = 0
[pid  3748] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3750] <... futex resumed>)        = 0
[pid  3749] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3748] exit_group(0 <unfinished ...>
[pid  3750] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3749] <... futex resumed>)        = ?
[pid  3749] +++ exited with 0 +++
[pid  3748] <... exit_group resumed>)   = ?
[pid  3750] <... futex resumed>)        = ?
[pid  3750] +++ exited with 0 +++
[pid  3748] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3748, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3751
./strace-static-x86_64: Process 3751 attached
[pid  3751] set_robust_list(0x5555564235e0, 24) = 0
[pid  3751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3751] setpgid(0, 0)               = 0
[pid  3751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3751] write(3, "1000", 4)         = 4
[pid  3751] close(3)                    = 0
[pid  3751] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3751] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3751] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3751] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3752], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3752
[pid  3751] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3751] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3752 attached
 <unfinished ...>
[pid  3752] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3752] pipe([3, 4])                = 0
[pid  3752] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3751] <... futex resumed>)        = 0
[pid  3751] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3751] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3752] <... futex resumed>)        = 1
[pid  3752] pipe2([5, 6], O_EXCL)       = 0
[pid  3752] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3751] <... futex resumed>)        = 0
[pid  3751] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3751] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3752] <... futex resumed>)        = 1
[pid  3752] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3751] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3751] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3751] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3751] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3751] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3751] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3751] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3751] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3753], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3753
[pid  3751] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3751] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3753 attached
 <unfinished ...>
[pid  3753] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3753] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3752] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3752] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3752] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3753] <... vmsplice resumed>)     = 1
[pid  3753] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3751] <... futex resumed>)        = 0
[pid  3751] exit_group(0 <unfinished ...>
[pid  3752] <... futex resumed>)        = ?
[pid  3751] <... exit_group resumed>)   = ?
[pid  3752] +++ exited with 0 +++
[pid  3753] <... futex resumed>)        = ?
[pid  3753] +++ exited with 0 +++
[pid  3751] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3751, 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 3754 attached
, child_tidptr=0x5555564235d0) = 3754
[pid  3754] set_robust_list(0x5555564235e0, 24) = 0
[pid  3754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3754] setpgid(0, 0)               = 0
[pid  3754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3754] write(3, "1000", 4)         = 4
[pid  3754] close(3)                    = 0
[pid  3754] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3754] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3754] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3754] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3755 attached
, parent_tid=[3755], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3755
[pid  3755] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3755] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3754] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3755] <... futex resumed>)        = 0
[pid  3755] pipe([3, 4])                = 0
[pid  3755] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3755] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3754] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3754] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3755] <... futex resumed>)        = 0
[pid  3755] pipe2([5, 6], O_EXCL)       = 0
[pid  3754] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3755] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3755] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3754] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3754] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3755] <... futex resumed>)        = 0
[pid  3755] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3754] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3754] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3754] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3754] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3754] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3754] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3754] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3756], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3756
[pid  3754] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3754] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3756 attached
 <unfinished ...>
[pid  3756] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3756] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3755] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3755] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3755] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3756] <... vmsplice resumed>)     = 1
[pid  3756] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3754] <... futex resumed>)        = 0
[pid  3754] exit_group(0 <unfinished ...>
[pid  3755] <... futex resumed>)        = ?
[pid  3754] <... exit_group resumed>)   = ?
[pid  3755] +++ exited with 0 +++
[pid  3756] <... futex resumed>)        = ?
[pid  3756] +++ exited with 0 +++
[pid  3754] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3754, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3757
./strace-static-x86_64: Process 3757 attached
[pid  3757] set_robust_list(0x5555564235e0, 24) = 0
[pid  3757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3757] setpgid(0, 0)               = 0
[pid  3757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3757] write(3, "1000", 4)         = 4
[pid  3757] close(3)                    = 0
[pid  3757] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3757] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3757] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3757] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3758], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3758
[pid  3757] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3757] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3758 attached
 <unfinished ...>
[pid  3758] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3758] pipe([3, 4])                = 0
[pid  3758] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3757] <... futex resumed>)        = 0
[pid  3757] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3757] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3758] <... futex resumed>)        = 1
[pid  3758] pipe2([5, 6], O_EXCL)       = 0
[pid  3758] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3757] <... futex resumed>)        = 0
[pid  3757] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3757] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3758] <... futex resumed>)        = 1
[pid  3758] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3757] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3757] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3757] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3757] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3757] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3759 attached
, parent_tid=[3759], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3759
[pid  3759] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3757] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3759] <... set_robust_list resumed>) = 0
[pid  3757] <... futex resumed>)        = 0
[pid  3759] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3757] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3758] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3758] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3758] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3759] <... vmsplice resumed>)     = 1
[pid  3759] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3759] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3757] <... futex resumed>)        = 0
[pid  3757] exit_group(0 <unfinished ...>
[pid  3758] <... futex resumed>)        = ?
[pid  3757] <... exit_group resumed>)   = ?
[pid  3758] +++ exited with 0 +++
[pid  3759] <... futex resumed>)        = ?
[pid  3759] +++ exited with 0 +++
[pid  3757] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3757, 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=0x5555564235d0) = 3760
./strace-static-x86_64: Process 3760 attached
[pid  3760] set_robust_list(0x5555564235e0, 24) = 0
[pid  3760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3760] setpgid(0, 0)               = 0
[pid  3760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3760] write(3, "1000", 4)         = 4
[pid  3760] close(3)                    = 0
[pid  3760] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3760] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3760] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3760] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3761], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3761
[pid  3760] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3760] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3761 attached
 <unfinished ...>
[pid  3761] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3761] pipe([3, 4])                = 0
[pid  3761] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3760] <... futex resumed>)        = 0
[pid  3760] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3760] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3761] <... futex resumed>)        = 1
[pid  3761] pipe2([5, 6], O_EXCL)       = 0
[pid  3761] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3760] <... futex resumed>)        = 0
[pid  3760] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3760] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3761] <... futex resumed>)        = 1
[pid  3761] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3760] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3760] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3760] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3760] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3760] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3760] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3762], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3762
[pid  3760] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3760] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3762 attached
 <unfinished ...>
[pid  3762] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3762] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3761] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3761] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3761] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3762] <... vmsplice resumed>)     = 1
[pid  3762] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3760] <... futex resumed>)        = 0
[pid  3760] exit_group(0 <unfinished ...>
[pid  3761] <... futex resumed>)        = ?
[pid  3760] <... exit_group resumed>)   = ?
[pid  3761] +++ exited with 0 +++
[pid  3762] <... futex resumed>)        = ?
[pid  3762] +++ exited with 0 +++
[pid  3760] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3760, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3763
./strace-static-x86_64: Process 3763 attached
[pid  3763] set_robust_list(0x5555564235e0, 24) = 0
[pid  3763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3763] setpgid(0, 0)               = 0
[pid  3763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3763] write(3, "1000", 4)         = 4
[pid  3763] close(3)                    = 0
[pid  3763] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3763] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3763] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3763] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3764], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3764
[pid  3763] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3763] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3764 attached
 <unfinished ...>
[pid  3764] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3764] pipe([3, 4])                = 0
[pid  3764] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3763] <... futex resumed>)        = 0
[pid  3763] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3763] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3764] <... futex resumed>)        = 1
[pid  3764] pipe2([5, 6], O_EXCL)       = 0
[pid  3764] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3763] <... futex resumed>)        = 0
[pid  3763] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3763] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3764] <... futex resumed>)        = 1
[pid  3764] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3763] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3763] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3763] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3763] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3763] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3763] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3763] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3765], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3765
[pid  3763] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3763] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3765 attached
 <unfinished ...>
[pid  3765] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3765] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3764] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3764] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3764] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3765] <... vmsplice resumed>)     = 1
[pid  3765] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3763] <... futex resumed>)        = 0
[pid  3763] exit_group(0 <unfinished ...>
[pid  3764] <... futex resumed>)        = ?
[pid  3763] <... exit_group resumed>)   = ?
[pid  3764] +++ exited with 0 +++
[pid  3765] <... futex resumed>)        = ?
[pid  3765] +++ exited with 0 +++
[pid  3763] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3763, 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, child_tidptr=0x5555564235d0) = 3766
./strace-static-x86_64: Process 3766 attached
[pid  3766] set_robust_list(0x5555564235e0, 24) = 0
[pid  3766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3766] setpgid(0, 0)               = 0
[pid  3766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3766] write(3, "1000", 4)         = 4
[pid  3766] close(3)                    = 0
[pid  3766] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3766] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3766] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3766] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3767], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3767
[pid  3766] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3766] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3767 attached
 <unfinished ...>
[pid  3767] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3767] pipe([3, 4])                = 0
[pid  3767] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3766] <... futex resumed>)        = 0
[pid  3766] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3766] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3767] <... futex resumed>)        = 1
[pid  3767] pipe2([5, 6], O_EXCL)       = 0
[pid  3767] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3766] <... futex resumed>)        = 0
[pid  3766] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3766] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3767] <... futex resumed>)        = 1
[pid  3767] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3766] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3766] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3766] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3766] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3766] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3768], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3768
[pid  3766] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3766] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3768 attached
 <unfinished ...>
[pid  3768] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3768] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3767] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3767] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3767] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3768] <... vmsplice resumed>)     = 1
[pid  3768] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3766] <... futex resumed>)        = 0
[pid  3766] exit_group(0 <unfinished ...>
[pid  3767] <... futex resumed>)        = ?
[pid  3766] <... exit_group resumed>)   = ?
[pid  3767] +++ exited with 0 +++
[pid  3768] <... futex resumed>)        = ?
[pid  3768] +++ exited with 0 +++
[pid  3766] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3766, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3769
./strace-static-x86_64: Process 3769 attached
[pid  3769] set_robust_list(0x5555564235e0, 24) = 0
[pid  3769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3769] setpgid(0, 0)               = 0
[pid  3769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3769] write(3, "1000", 4)         = 4
[pid  3769] close(3)                    = 0
[pid  3769] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3769] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3769] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3769] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3770 attached
, parent_tid=[3770], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3770
[pid  3770] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3770] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3769] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3770] <... futex resumed>)        = 0
[pid  3770] pipe( <unfinished ...>
[pid  3769] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3770] <... pipe resumed>[3, 4])   = 0
[pid  3770] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3770] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3769] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3769] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3770] <... futex resumed>)        = 0
[pid  3770] pipe2( <unfinished ...>
[pid  3769] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3770] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3770] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3769] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3770] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3769] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3770] <... futex resumed>)        = 0
[pid  3769] <... futex resumed>)        = 1
[pid  3770] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3769] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3769] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3769] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3769] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3769] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3769] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3771 attached
, parent_tid=[3771], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3771
[pid  3771] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3771] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3769] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3771] <... futex resumed>)        = 0
[pid  3769] <... futex resumed>)        = 1
[pid  3771] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3770] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3770] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3770] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3771] <... vmsplice resumed>)     = 1
[pid  3771] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3771] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3769] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3769] exit_group(0 <unfinished ...>
[pid  3770] <... futex resumed>)        = ?
[pid  3769] <... exit_group resumed>)   = ?
[pid  3770] +++ exited with 0 +++
[pid  3771] <... futex resumed>)        = ?
[pid  3771] +++ exited with 0 +++
[pid  3769] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3769, 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 3772 attached
, child_tidptr=0x5555564235d0) = 3772
[pid  3772] set_robust_list(0x5555564235e0, 24) = 0
[pid  3772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3772] setpgid(0, 0)               = 0
[pid  3772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3772] write(3, "1000", 4)         = 4
[pid  3772] close(3)                    = 0
[pid  3772] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3772] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3772] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3772] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3773 attached
, parent_tid=[3773], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3773
[pid  3772] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3773] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3772] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3773] <... set_robust_list resumed>) = 0
[pid  3773] pipe([3, 4])                = 0
[pid  3773] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3772] <... futex resumed>)        = 0
[pid  3772] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3772] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3773] pipe2([5, 6], O_EXCL)       = 0
[pid  3773] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3772] <... futex resumed>)        = 0
[pid  3772] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3772] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3773] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3772] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3772] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3772] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3772] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3772] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3774], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3774
[pid  3772] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3772] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3774 attached
 <unfinished ...>
[pid  3774] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3774] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3774] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3773] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3772] <... futex resumed>)        = 0
[pid  3773] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3774] <... futex resumed>)        = 1
[pid  3774] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3773] <... futex resumed>)        = 0
[pid  3773] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3772] exit_group(0)               = ?
[pid  3773] <... futex resumed>)        = ?
[pid  3774] <... futex resumed>)        = ?
[pid  3774] +++ exited with 0 +++
[pid  3773] +++ exited with 0 +++
[pid  3772] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3772, 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, child_tidptr=0x5555564235d0) = 3775
./strace-static-x86_64: Process 3775 attached
[pid  3775] set_robust_list(0x5555564235e0, 24) = 0
[pid  3775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3775] setpgid(0, 0)               = 0
[pid  3775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3775] write(3, "1000", 4)         = 4
[pid  3775] close(3)                    = 0
[pid  3775] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3775] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3775] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3775] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3776], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3776
[pid  3775] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3775] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3776 attached
 <unfinished ...>
[pid  3776] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3776] pipe([3, 4])                = 0
[pid  3776] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3775] <... futex resumed>)        = 0
[pid  3775] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3775] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3776] <... futex resumed>)        = 1
[pid  3776] pipe2([5, 6], O_EXCL)       = 0
[pid  3776] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3775] <... futex resumed>)        = 0
[pid  3775] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3775] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3776] <... futex resumed>)        = 1
[pid  3776] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3775] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3775] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3775] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3775] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3775] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3775] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3777], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3777
[pid  3775] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3775] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3777 attached
 <unfinished ...>
[pid  3777] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3777] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3776] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3776] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3776] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3777] <... vmsplice resumed>)     = 1
[pid  3777] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3775] <... futex resumed>)        = 0
[pid  3775] exit_group(0 <unfinished ...>
[pid  3776] <... futex resumed>)        = ?
[pid  3775] <... exit_group resumed>)   = ?
[pid  3776] +++ exited with 0 +++
[pid  3777] <... futex resumed>)        = ?
[pid  3777] +++ exited with 0 +++
[pid  3775] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3775, 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, child_tidptr=0x5555564235d0) = 3778
./strace-static-x86_64: Process 3778 attached
[pid  3778] set_robust_list(0x5555564235e0, 24) = 0
[pid  3778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3778] setpgid(0, 0)               = 0
[pid  3778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3778] write(3, "1000", 4)         = 4
[pid  3778] close(3)                    = 0
[pid  3778] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3778] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3778] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3778] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3779], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3779
[pid  3778] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3778] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3779 attached
 <unfinished ...>
[pid  3779] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3779] pipe([3, 4])                = 0
[pid  3779] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3778] <... futex resumed>)        = 0
[pid  3778] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3778] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3779] <... futex resumed>)        = 1
[pid  3779] pipe2([5, 6], O_EXCL)       = 0
[pid  3779] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3778] <... futex resumed>)        = 0
[pid  3778] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3778] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3779] <... futex resumed>)        = 1
[pid  3779] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3778] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3778] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3778] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3778] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3778] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3778] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3778] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3778] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3780], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3780
[pid  3778] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3778] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3780 attached
 <unfinished ...>
[pid  3780] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3780] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3779] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3779] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3779] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3780] <... vmsplice resumed>)     = 1
[pid  3780] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3778] <... futex resumed>)        = 0
[pid  3778] exit_group(0 <unfinished ...>
[pid  3779] <... futex resumed>)        = ?
[pid  3778] <... exit_group resumed>)   = ?
[pid  3779] +++ exited with 0 +++
[pid  3780] <... futex resumed>)        = ?
[pid  3780] +++ exited with 0 +++
[pid  3778] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3778, 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, child_tidptr=0x5555564235d0) = 3781
./strace-static-x86_64: Process 3781 attached
[pid  3781] set_robust_list(0x5555564235e0, 24) = 0
[pid  3781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3781] setpgid(0, 0)               = 0
[pid  3781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3781] write(3, "1000", 4)         = 4
[pid  3781] close(3)                    = 0
[pid  3781] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3781] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3781] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3781] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3782], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3782
[pid  3781] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3781] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3782 attached
 <unfinished ...>
[pid  3782] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3782] pipe([3, 4])                = 0
[pid  3782] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3781] <... futex resumed>)        = 0
[pid  3781] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3781] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3782] <... futex resumed>)        = 1
[pid  3782] pipe2([5, 6], O_EXCL)       = 0
[pid  3782] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3781] <... futex resumed>)        = 0
[pid  3781] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3781] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3782] <... futex resumed>)        = 1
[pid  3782] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3781] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3781] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3781] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3781] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3781] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3783], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3783
[pid  3781] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3781] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3783 attached
 <unfinished ...>
[pid  3783] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3783] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3782] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3782] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3782] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3783] <... vmsplice resumed>)     = 1
[pid  3783] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3781] <... futex resumed>)        = 0
[pid  3781] exit_group(0 <unfinished ...>
[pid  3782] <... futex resumed>)        = ?
[pid  3781] <... exit_group resumed>)   = ?
[pid  3782] +++ exited with 0 +++
[pid  3783] <... futex resumed>)        = ?
[pid  3783] +++ exited with 0 +++
[pid  3781] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3781, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3784
./strace-static-x86_64: Process 3784 attached
[pid  3784] set_robust_list(0x5555564235e0, 24) = 0
[pid  3784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3784] setpgid(0, 0)               = 0
[pid  3784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3784] write(3, "1000", 4)         = 4
[pid  3784] close(3)                    = 0
[pid  3784] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3784] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3784] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3784] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3785], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3785
[pid  3784] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3784] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3785 attached
 <unfinished ...>
[pid  3785] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3785] pipe([3, 4])                = 0
[pid  3785] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3784] <... futex resumed>)        = 0
[pid  3784] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3784] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3785] <... futex resumed>)        = 1
[pid  3785] pipe2([5, 6], O_EXCL)       = 0
[pid  3785] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3784] <... futex resumed>)        = 0
[pid  3784] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3784] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3785] <... futex resumed>)        = 1
[pid  3785] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3784] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3784] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3784] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3784] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3784] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3786], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3786
[pid  3784] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3784] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3786 attached
 <unfinished ...>
[pid  3786] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3786] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3785] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3785] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3785] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3786] <... vmsplice resumed>)     = 1
[pid  3786] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3784] <... futex resumed>)        = 0
[pid  3784] exit_group(0 <unfinished ...>
[pid  3785] <... futex resumed>)        = ?
[pid  3784] <... exit_group resumed>)   = ?
[pid  3785] +++ exited with 0 +++
[pid  3786] <... futex resumed>)        = ?
[pid  3786] +++ exited with 0 +++
[pid  3784] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3784, 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 3787 attached
, child_tidptr=0x5555564235d0) = 3787
[pid  3787] set_robust_list(0x5555564235e0, 24) = 0
[pid  3787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3787] setpgid(0, 0)               = 0
[pid  3787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3787] write(3, "1000", 4)         = 4
[pid  3787] close(3)                    = 0
[pid  3787] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3787] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3787] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3787] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3788 attached
, parent_tid=[3788], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3788
[pid  3788] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3787] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3788] <... set_robust_list resumed>) = 0
[pid  3787] <... futex resumed>)        = 0
[pid  3788] pipe( <unfinished ...>
[pid  3787] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3788] <... pipe resumed>[3, 4])   = 0
[pid  3788] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3787] <... futex resumed>)        = 0
[pid  3788] pipe2( <unfinished ...>
[pid  3787] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3787] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3788] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3788] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3787] <... futex resumed>)        = 0
[pid  3788] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3787] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3787] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3787] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3787] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3787] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3787] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3789 attached
, parent_tid=[3789], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3789
[pid  3789] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3789] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3787] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3789] <... futex resumed>)        = 0
[pid  3789] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3787] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3789] <... vmsplice resumed>)     = 1
[pid  3788] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3789] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3788] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3789] <... futex resumed>)        = 1
[pid  3788] <... futex resumed>)        = 0
[pid  3787] <... futex resumed>)        = 0
[pid  3788] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3789] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3787] exit_group(0 <unfinished ...>
[pid  3788] <... futex resumed>)        = ?
[pid  3789] <... futex resumed>)        = ?
[pid  3787] <... exit_group resumed>)   = ?
[pid  3789] +++ exited with 0 +++
[pid  3788] +++ exited with 0 +++
[pid  3787] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3787, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3790
./strace-static-x86_64: Process 3790 attached
[pid  3790] set_robust_list(0x5555564235e0, 24) = 0
[pid  3790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3790] setpgid(0, 0)               = 0
[pid  3790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3790] write(3, "1000", 4)         = 4
[pid  3790] close(3)                    = 0
[pid  3790] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3790] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3790] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3790] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3791], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3791
[pid  3790] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3790] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3791 attached
 <unfinished ...>
[pid  3791] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3791] pipe([3, 4])                = 0
[pid  3791] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3790] <... futex resumed>)        = 0
[pid  3790] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3790] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3791] <... futex resumed>)        = 1
[pid  3791] pipe2([5, 6], O_EXCL)       = 0
[pid  3791] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3790] <... futex resumed>)        = 0
[pid  3790] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3790] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3791] <... futex resumed>)        = 1
[pid  3791] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3790] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3790] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3790] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3790] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3790] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3792 attached
, parent_tid=[3792], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3792
[pid  3792] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3790] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3792] <... set_robust_list resumed>) = 0
[pid  3790] <... futex resumed>)        = 0
[pid  3792] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3790] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3792] <... vmsplice resumed>)     = 1
[pid  3792] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3791] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3792] <... futex resumed>)        = 1
[pid  3790] <... futex resumed>)        = 0
[pid  3791] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3790] exit_group(0 <unfinished ...>
[pid  3791] <... futex resumed>)        = 0
[pid  3790] <... exit_group resumed>)   = ?
[pid  3792] +++ exited with 0 +++
[pid  3791] +++ exited with 0 +++
[pid  3790] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3790, 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 3793 attached
, child_tidptr=0x5555564235d0) = 3793
[pid  3793] set_robust_list(0x5555564235e0, 24) = 0
[pid  3793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3793] setpgid(0, 0)               = 0
[pid  3793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3793] write(3, "1000", 4)         = 4
[pid  3793] close(3)                    = 0
[pid  3793] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3793] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3793] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3793] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3794 attached
 <unfinished ...>
[pid  3794] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3794] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3793] <... clone resumed>, parent_tid=[3794], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3794
[pid  3793] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3794] <... futex resumed>)        = 0
[pid  3793] <... futex resumed>)        = 1
[pid  3794] pipe( <unfinished ...>
[pid  3793] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3794] <... pipe resumed>[3, 4])   = 0
[pid  3794] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3794] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3793] <... futex resumed>)        = 0
[pid  3793] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3794] <... futex resumed>)        = 0
[pid  3794] pipe2([5, 6], O_EXCL)       = 0
[pid  3793] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3794] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3793] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3794] <... futex resumed>)        = 0
[pid  3794] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3793] <... futex resumed>)        = 0
[pid  3793] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3793] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3793] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3793] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3793] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3795 attached
 <unfinished ...>
[pid  3795] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3795] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3793] <... clone resumed>, parent_tid=[3795], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3795
[pid  3793] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3795] <... futex resumed>)        = 0
[pid  3793] <... futex resumed>)        = 1
[pid  3795] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3793] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3794] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3794] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3794] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3795] <... vmsplice resumed>)     = 1
[pid  3795] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3795] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3793] <... futex resumed>)        = 0
[pid  3793] exit_group(0 <unfinished ...>
[pid  3794] <... futex resumed>)        = ?
[pid  3793] <... exit_group resumed>)   = ?
[pid  3794] +++ exited with 0 +++
[pid  3795] <... futex resumed>)        = ?
[pid  3795] +++ exited with 0 +++
[pid  3793] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3793, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3796
./strace-static-x86_64: Process 3796 attached
[pid  3796] set_robust_list(0x5555564235e0, 24) = 0
[pid  3796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3796] setpgid(0, 0)               = 0
[pid  3796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3796] write(3, "1000", 4)         = 4
[pid  3796] close(3)                    = 0
[pid  3796] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3796] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3796] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3796] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3797], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3797
[pid  3796] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3796] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3797 attached
 <unfinished ...>
[pid  3797] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3797] pipe([3, 4])                = 0
[pid  3797] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3796] <... futex resumed>)        = 0
[pid  3796] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3796] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3797] <... futex resumed>)        = 1
[pid  3797] pipe2([5, 6], O_EXCL)       = 0
[pid  3797] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3796] <... futex resumed>)        = 0
[pid  3796] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3796] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3797] <... futex resumed>)        = 1
[pid  3797] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3796] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3796] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3796] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3796] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3796] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3796] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3798], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3798
[pid  3796] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3796] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3798 attached
 <unfinished ...>
[pid  3798] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3798] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3797] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3797] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3797] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3798] <... vmsplice resumed>)     = 1
[pid  3798] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3796] <... futex resumed>)        = 0
[pid  3796] exit_group(0 <unfinished ...>
[pid  3797] <... futex resumed>)        = ?
[pid  3796] <... exit_group resumed>)   = ?
[pid  3797] +++ exited with 0 +++
[pid  3798] <... futex resumed>)        = ?
[pid  3798] +++ exited with 0 +++
[pid  3796] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3796, 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, child_tidptr=0x5555564235d0) = 3799
./strace-static-x86_64: Process 3799 attached
[pid  3799] set_robust_list(0x5555564235e0, 24) = 0
[pid  3799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3799] setpgid(0, 0)               = 0
[pid  3799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3799] write(3, "1000", 4)         = 4
[pid  3799] close(3)                    = 0
[pid  3799] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3799] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3799] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3799] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3800 attached
, parent_tid=[3800], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3800
[pid  3800] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3800] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3799] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3800] <... futex resumed>)        = 0
[pid  3800] pipe([3, 4])                = 0
[pid  3800] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3800] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3799] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3799] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3800] <... futex resumed>)        = 0
[pid  3800] pipe2([5, 6], O_EXCL)       = 0
[pid  3800] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3800] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3799] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3799] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3800] <... futex resumed>)        = 0
[pid  3799] <... futex resumed>)        = 1
[pid  3800] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3799] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3799] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3799] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3799] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3799] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3801], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3801
[pid  3799] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 3801 attached
 <unfinished ...>
[pid  3801] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3801] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3800] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3800] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3800] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3801] <... vmsplice resumed>)     = 1
[pid  3801] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3801] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3799] <... futex resumed>)        = 1
[pid  3801] <... futex resumed>)        = 0
[pid  3801] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3799] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3799] exit_group(0)               = ?
[pid  3800] <... futex resumed>)        = ?
[pid  3801] <... futex resumed>)        = ?
[pid  3801] +++ exited with 0 +++
[pid  3800] +++ exited with 0 +++
[pid  3799] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3799, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3802
./strace-static-x86_64: Process 3802 attached
[pid  3802] set_robust_list(0x5555564235e0, 24) = 0
[pid  3802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3802] setpgid(0, 0)               = 0
[pid  3802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3802] write(3, "1000", 4)         = 4
[pid  3802] close(3)                    = 0
[pid  3802] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3802] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3802] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3802] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3803], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3803
[pid  3802] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3802] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3803 attached
 <unfinished ...>
[pid  3803] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3803] pipe([3, 4])                = 0
[pid  3803] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3802] <... futex resumed>)        = 0
[pid  3802] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3802] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3803] <... futex resumed>)        = 1
[pid  3803] pipe2([5, 6], O_EXCL)       = 0
[pid  3803] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3802] <... futex resumed>)        = 0
[pid  3802] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3802] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3803] <... futex resumed>)        = 1
[pid  3803] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3802] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3802] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3802] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3802] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3802] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3802] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3802] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3802] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3804], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3804
[pid  3802] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3802] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3804 attached
 <unfinished ...>
[pid  3804] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3804] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3803] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3803] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3803] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3804] <... vmsplice resumed>)     = 1
[pid  3804] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3802] <... futex resumed>)        = 0
[pid  3802] exit_group(0 <unfinished ...>
[pid  3803] <... futex resumed>)        = ?
[pid  3802] <... exit_group resumed>)   = ?
[pid  3803] +++ exited with 0 +++
[pid  3804] <... futex resumed>)        = ?
[pid  3804] +++ exited with 0 +++
[pid  3802] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3802, 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, child_tidptr=0x5555564235d0) = 3805
./strace-static-x86_64: Process 3805 attached
[pid  3805] set_robust_list(0x5555564235e0, 24) = 0
[pid  3805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3805] setpgid(0, 0)               = 0
[pid  3805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3805] write(3, "1000", 4)         = 4
[pid  3805] close(3)                    = 0
[pid  3805] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3805] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3805] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3805] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3806], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3806
[pid  3805] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3805] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3806 attached
 <unfinished ...>
[pid  3806] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3806] pipe([3, 4])                = 0
[pid  3806] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3805] <... futex resumed>)        = 0
[pid  3805] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3805] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3806] <... futex resumed>)        = 1
[pid  3806] pipe2([5, 6], O_EXCL)       = 0
[pid  3806] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3805] <... futex resumed>)        = 0
[pid  3805] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3805] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3806] <... futex resumed>)        = 1
[pid  3806] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3805] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3805] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3805] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3805] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3805] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3805] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3805] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3805] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3807], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3807
[pid  3805] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3805] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3807 attached
 <unfinished ...>
[pid  3807] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3807] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3806] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3806] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3806] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3807] <... vmsplice resumed>)     = 1
[pid  3807] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3805] <... futex resumed>)        = 0
[pid  3805] exit_group(0 <unfinished ...>
[pid  3806] <... futex resumed>)        = ?
[pid  3805] <... exit_group resumed>)   = ?
[pid  3806] +++ exited with 0 +++
[pid  3807] <... futex resumed>)        = ?
[pid  3807] +++ exited with 0 +++
[pid  3805] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3805, 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, child_tidptr=0x5555564235d0) = 3808
./strace-static-x86_64: Process 3808 attached
[pid  3808] set_robust_list(0x5555564235e0, 24) = 0
[pid  3808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3808] setpgid(0, 0)               = 0
[pid  3808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3808] write(3, "1000", 4)         = 4
[pid  3808] close(3)                    = 0
[pid  3808] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3808] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3808] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3809], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3809
[pid  3808] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3808] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3809 attached
 <unfinished ...>
[pid  3809] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3809] pipe([3, 4])                = 0
[pid  3809] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3808] <... futex resumed>)        = 0
[pid  3808] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3808] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3809] <... futex resumed>)        = 1
[pid  3809] pipe2([5, 6], O_EXCL)       = 0
[pid  3809] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3808] <... futex resumed>)        = 0
[pid  3808] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3808] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3809] <... futex resumed>)        = 1
[pid  3809] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3808] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3808] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3808] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3808] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3808] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3810], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3810
[pid  3808] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3808] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3810 attached
 <unfinished ...>
[pid  3810] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3810] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3809] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3809] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3809] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3810] <... vmsplice resumed>)     = 1
[pid  3810] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3808] <... futex resumed>)        = 0
[pid  3808] exit_group(0 <unfinished ...>
[pid  3809] <... futex resumed>)        = ?
[pid  3808] <... exit_group resumed>)   = ?
[pid  3809] +++ exited with 0 +++
[pid  3810] <... futex resumed>)        = ?
[pid  3810] +++ exited with 0 +++
[pid  3808] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3808, 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, child_tidptr=0x5555564235d0) = 3811
./strace-static-x86_64: Process 3811 attached
[pid  3811] set_robust_list(0x5555564235e0, 24) = 0
[pid  3811] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3811] setpgid(0, 0)               = 0
[pid  3811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3811] write(3, "1000", 4)         = 4
[pid  3811] close(3)                    = 0
[pid  3811] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3811] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3811] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3811] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3812 attached
, parent_tid=[3812], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3812
[pid  3812] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3812] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3811] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3812] <... futex resumed>)        = 0
[pid  3812] pipe([3, 4])                = 0
[pid  3812] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3812] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3811] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3811] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3812] <... futex resumed>)        = 0
[pid  3812] pipe2([5, 6], O_EXCL)       = 0
[pid  3811] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3812] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3811] <... futex resumed>)        = 0
[pid  3811] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3812] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3811] <... futex resumed>)        = 0
[pid  3811] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3811] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3811] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3811] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3811] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3813], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3813
[pid  3811] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3811] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3813 attached
 <unfinished ...>
[pid  3813] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3813] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3812] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3812] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3812] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3813] <... vmsplice resumed>)     = 1
[pid  3813] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3811] <... futex resumed>)        = 0
[pid  3811] exit_group(0 <unfinished ...>
[pid  3812] <... futex resumed>)        = ?
[pid  3811] <... exit_group resumed>)   = ?
[pid  3812] +++ exited with 0 +++
[pid  3813] <... futex resumed>)        = ?
[pid  3813] +++ exited with 0 +++
[pid  3811] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3811, 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 3814 attached
, child_tidptr=0x5555564235d0) = 3814
[pid  3814] set_robust_list(0x5555564235e0, 24) = 0
[pid  3814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3814] setpgid(0, 0)               = 0
[pid  3814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3814] write(3, "1000", 4)         = 4
[pid  3814] close(3)                    = 0
[pid  3814] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3814] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3814] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3814] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3815], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3815
[pid  3814] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3814] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3815 attached
 <unfinished ...>
[pid  3815] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3815] pipe([3, 4])                = 0
[pid  3815] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3814] <... futex resumed>)        = 0
[pid  3814] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3814] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3815] <... futex resumed>)        = 1
[pid  3815] pipe2([5, 6], O_EXCL)       = 0
[pid  3815] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3814] <... futex resumed>)        = 0
[pid  3814] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3814] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3815] <... futex resumed>)        = 1
[pid  3815] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3814] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3814] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3814] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3814] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3814] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3814] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3816 attached
, parent_tid=[3816], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3816
[pid  3814] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3814] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3816] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3816] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3815] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3815] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3815] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3816] <... vmsplice resumed>)     = 1
[pid  3816] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3816] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3814] <... futex resumed>)        = 0
[pid  3814] exit_group(0 <unfinished ...>
[pid  3815] <... futex resumed>)        = ?
[pid  3814] <... exit_group resumed>)   = ?
[pid  3815] +++ exited with 0 +++
[pid  3816] <... futex resumed>)        = ?
[pid  3816] +++ exited with 0 +++
[pid  3814] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3814, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3817
./strace-static-x86_64: Process 3817 attached
[pid  3817] set_robust_list(0x5555564235e0, 24) = 0
[pid  3817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3817] setpgid(0, 0)               = 0
[pid  3817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3817] write(3, "1000", 4)         = 4
[pid  3817] close(3)                    = 0
[pid  3817] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3817] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3817] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3817] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3818], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3818
[pid  3817] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3817] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3818 attached
 <unfinished ...>
[pid  3818] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3818] pipe([3, 4])                = 0
[pid  3818] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3817] <... futex resumed>)        = 0
[pid  3817] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3817] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3818] <... futex resumed>)        = 1
[pid  3818] pipe2([5, 6], O_EXCL)       = 0
[pid  3818] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3817] <... futex resumed>)        = 0
[pid  3817] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3817] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3818] <... futex resumed>)        = 1
[pid  3818] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3817] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3817] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3817] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3817] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3817] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3817] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3819], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3819
[pid  3817] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3817] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3819 attached
 <unfinished ...>
[pid  3819] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3819] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3818] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3818] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3818] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3819] <... vmsplice resumed>)     = 1
[pid  3819] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3817] <... futex resumed>)        = 0
[pid  3817] exit_group(0)               = ?
[pid  3818] <... futex resumed>)        = ?
[pid  3818] +++ exited with 0 +++
[pid  3819] <... futex resumed>)        = ?
[pid  3819] +++ exited with 0 +++
[pid  3817] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3817, 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 3820 attached
, child_tidptr=0x5555564235d0) = 3820
[pid  3820] set_robust_list(0x5555564235e0, 24) = 0
[pid  3820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3820] setpgid(0, 0)               = 0
[pid  3820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3820] write(3, "1000", 4)         = 4
[pid  3820] close(3)                    = 0
[pid  3820] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3820] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3820] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3820] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3821], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3821
[pid  3820] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3820] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3821 attached
 <unfinished ...>
[pid  3821] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3821] pipe([3, 4])                = 0
[pid  3821] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3820] <... futex resumed>)        = 0
[pid  3820] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3820] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3821] <... futex resumed>)        = 1
[pid  3821] pipe2([5, 6], O_EXCL)       = 0
[pid  3821] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3820] <... futex resumed>)        = 0
[pid  3820] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3820] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3821] <... futex resumed>)        = 1
[pid  3821] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3820] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3820] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3820] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3820] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3820] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3820] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3822 attached
 <unfinished ...>
[pid  3822] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3820] <... clone resumed>, parent_tid=[3822], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3822
[pid  3822] <... set_robust_list resumed>) = 0
[pid  3820] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3822] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3820] <... futex resumed>)        = 0
[pid  3822] <... vmsplice resumed>)     = 1
[pid  3821] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3820] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3822] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3821] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3820] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3822] <... futex resumed>)        = 0
[pid  3821] <... futex resumed>)        = 0
[pid  3822] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3821] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3820] exit_group(0)               = ?
[pid  3821] <... futex resumed>)        = ?
[pid  3821] +++ exited with 0 +++
[pid  3822] <... futex resumed>)        = ?
[pid  3822] +++ exited with 0 +++
[pid  3820] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3820, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3823
./strace-static-x86_64: Process 3823 attached
[pid  3823] set_robust_list(0x5555564235e0, 24) = 0
[pid  3823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3823] setpgid(0, 0)               = 0
[pid  3823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3823] write(3, "1000", 4)         = 4
[pid  3823] close(3)                    = 0
[pid  3823] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3823] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3823] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3823] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3824 attached
 <unfinished ...>
[pid  3824] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3824] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3823] <... clone resumed>, parent_tid=[3824], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3824
[pid  3823] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3824] <... futex resumed>)        = 0
[pid  3824] pipe([3, 4])                = 0
[pid  3824] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3824] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3823] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3823] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3824] <... futex resumed>)        = 0
[pid  3824] pipe2([5, 6], O_EXCL)       = 0
[pid  3824] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3824] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3823] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3823] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3824] <... futex resumed>)        = 0
[pid  3824] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3823] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3823] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3823] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3823] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3823] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3825 attached
, parent_tid=[3825], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3825
[pid  3825] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3825] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3823] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3825] <... futex resumed>)        = 0
[pid  3825] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3824] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3824] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3824] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3825] <... vmsplice resumed>)     = 1
[pid  3825] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3825] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3823] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3823] exit_group(0 <unfinished ...>
[pid  3825] <... futex resumed>)        = ?
[pid  3824] <... futex resumed>)        = ?
[pid  3823] <... exit_group resumed>)   = ?
[pid  3825] +++ exited with 0 +++
[pid  3824] +++ exited with 0 +++
[pid  3823] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3823, 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=0x5555564235d0) = 3826
./strace-static-x86_64: Process 3826 attached
[pid  3826] set_robust_list(0x5555564235e0, 24) = 0
[pid  3826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3826] setpgid(0, 0)               = 0
[pid  3826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3826] write(3, "1000", 4)         = 4
[pid  3826] close(3)                    = 0
[pid  3826] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3826] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3826] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3826] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3827], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3827
[pid  3826] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3826] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3827 attached
 <unfinished ...>
[pid  3827] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3827] pipe([3, 4])                = 0
[pid  3827] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3826] <... futex resumed>)        = 0
[pid  3826] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3826] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3827] <... futex resumed>)        = 1
[pid  3827] pipe2([5, 6], O_EXCL)       = 0
[pid  3827] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3826] <... futex resumed>)        = 0
[pid  3826] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3826] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3827] <... futex resumed>)        = 1
[pid  3827] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3826] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3826] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3826] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3826] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3826] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3826] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3828], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3828
[pid  3826] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3826] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3828 attached
 <unfinished ...>
[pid  3828] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3828] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3827] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3827] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3827] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3828] <... vmsplice resumed>)     = 1
[pid  3828] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3826] <... futex resumed>)        = 0
[pid  3826] exit_group(0 <unfinished ...>
[pid  3827] <... futex resumed>)        = ?
[pid  3826] <... exit_group resumed>)   = ?
[pid  3827] +++ exited with 0 +++
[pid  3828] <... futex resumed>)        = ?
[pid  3828] +++ exited with 0 +++
[pid  3826] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3826, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3829
./strace-static-x86_64: Process 3829 attached
[pid  3829] set_robust_list(0x5555564235e0, 24) = 0
[pid  3829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3829] setpgid(0, 0)               = 0
[pid  3829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3829] write(3, "1000", 4)         = 4
[pid  3829] close(3)                    = 0
[pid  3829] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3829] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3829] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3829] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3830], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3830
[pid  3829] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3829] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3830 attached
 <unfinished ...>
[pid  3830] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3830] pipe([3, 4])                = 0
[pid  3830] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3829] <... futex resumed>)        = 0
[pid  3829] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3829] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3830] <... futex resumed>)        = 1
[pid  3830] pipe2([5, 6], O_EXCL)       = 0
[pid  3830] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3829] <... futex resumed>)        = 0
[pid  3829] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3829] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3830] <... futex resumed>)        = 1
[pid  3830] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3829] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3829] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3829] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3829] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3829] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3831], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3831
[pid  3829] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3829] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3831 attached
 <unfinished ...>
[pid  3831] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3831] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3830] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3830] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3830] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3831] <... vmsplice resumed>)     = 1
[pid  3831] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3829] <... futex resumed>)        = 0
[pid  3829] exit_group(0 <unfinished ...>
[pid  3830] <... futex resumed>)        = ?
[pid  3829] <... exit_group resumed>)   = ?
[pid  3830] +++ exited with 0 +++
[pid  3831] <... futex resumed>)        = ?
[pid  3831] +++ exited with 0 +++
[pid  3829] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3829, 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, child_tidptr=0x5555564235d0) = 3832
./strace-static-x86_64: Process 3832 attached
[pid  3832] set_robust_list(0x5555564235e0, 24) = 0
[pid  3832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3832] setpgid(0, 0)               = 0
[pid  3832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3832] write(3, "1000", 4)         = 4
[pid  3832] close(3)                    = 0
[pid  3832] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3832] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3832] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3832] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3833], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3833
[pid  3832] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3832] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3833 attached
 <unfinished ...>
[pid  3833] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3833] pipe([3, 4])                = 0
[pid  3833] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3832] <... futex resumed>)        = 0
[pid  3832] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3832] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3833] <... futex resumed>)        = 1
[pid  3833] pipe2([5, 6], O_EXCL)       = 0
[pid  3833] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3832] <... futex resumed>)        = 0
[pid  3832] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3832] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3833] <... futex resumed>)        = 1
[pid  3833] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3832] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3832] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3832] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3832] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3832] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3834 attached
 <unfinished ...>
[pid  3834] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3834] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3832] <... clone resumed>, parent_tid=[3834], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3834
[pid  3832] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3834] <... futex resumed>)        = 0
[pid  3834] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3832] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3833] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3833] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3833] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3834] <... vmsplice resumed>)     = 1
[pid  3834] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3832] <... futex resumed>)        = 0
[pid  3834] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3832] exit_group(0)               = ?
[pid  3833] <... futex resumed>)        = ?
[pid  3834] <... futex resumed>)        = ?
[pid  3834] +++ exited with 0 +++
[pid  3833] +++ exited with 0 +++
[pid  3832] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3832, 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, child_tidptr=0x5555564235d0) = 3835
./strace-static-x86_64: Process 3835 attached
[pid  3835] set_robust_list(0x5555564235e0, 24) = 0
[pid  3835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3835] setpgid(0, 0)               = 0
[pid  3835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3835] write(3, "1000", 4)         = 4
[pid  3835] close(3)                    = 0
[pid  3835] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3835] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3835] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3835] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3836], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3836
[pid  3835] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3835] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3836 attached
 <unfinished ...>
[pid  3836] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3836] pipe([3, 4])                = 0
[pid  3836] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3835] <... futex resumed>)        = 0
[pid  3835] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3835] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3836] <... futex resumed>)        = 1
[pid  3836] pipe2([5, 6], O_EXCL)       = 0
[pid  3836] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3835] <... futex resumed>)        = 0
[pid  3835] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3835] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3836] <... futex resumed>)        = 1
[pid  3836] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3835] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3835] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3835] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3835] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3835] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3835] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3837 attached
, parent_tid=[3837], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3837
[pid  3837] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3835] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3837] <... set_robust_list resumed>) = 0
[pid  3835] <... futex resumed>)        = 0
[pid  3837] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3835] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3837] <... vmsplice resumed>)     = 1
[pid  3836] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3837] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3836] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3837] <... futex resumed>)        = 1
[pid  3836] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3835] <... futex resumed>)        = 0
[pid  3837] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3835] exit_group(0 <unfinished ...>
[pid  3837] <... futex resumed>)        = ?
[pid  3836] <... futex resumed>)        = ?
[pid  3835] <... exit_group resumed>)   = ?
[pid  3837] +++ exited with 0 +++
[pid  3836] +++ exited with 0 +++
[pid  3835] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3835, 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=0x5555564235d0) = 3838
./strace-static-x86_64: Process 3838 attached
[pid  3838] set_robust_list(0x5555564235e0, 24) = 0
[pid  3838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3838] setpgid(0, 0)               = 0
[pid  3838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3838] write(3, "1000", 4)         = 4
[pid  3838] close(3)                    = 0
[pid  3838] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3838] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3838] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3838] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3839 attached
, parent_tid=[3839], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3839
[pid  3839] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3839] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3838] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3839] <... futex resumed>)        = 0
[pid  3839] pipe( <unfinished ...>
[pid  3838] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3839] <... pipe resumed>[3, 4])   = 0
[pid  3839] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3839] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3838] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3838] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3839] <... futex resumed>)        = 0
[pid  3839] pipe2([5, 6], O_EXCL)       = 0
[pid  3838] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3839] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3839] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3838] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3838] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3839] <... futex resumed>)        = 0
[pid  3839] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3838] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3838] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3838] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3838] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3838] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3840 attached
 <unfinished ...>
[pid  3840] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3840] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3838] <... clone resumed>, parent_tid=[3840], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3840
[pid  3838] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3840] <... futex resumed>)        = 0
[pid  3840] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3838] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3840] <... vmsplice resumed>)     = 1
[pid  3839] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3840] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3839] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3838] <... futex resumed>)        = 0
[pid  3839] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3838] exit_group(0)               = ?
[pid  3839] <... futex resumed>)        = ?
[pid  3840] <... futex resumed>)        = ?
[pid  3839] +++ exited with 0 +++
[pid  3840] +++ exited with 0 +++
[pid  3838] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3838, 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 3841 attached
 <unfinished ...>
[pid  3841] set_robust_list(0x5555564235e0, 24 <unfinished ...>
[pid  3609] <... clone resumed>, child_tidptr=0x5555564235d0) = 3841
[pid  3841] <... set_robust_list resumed>) = 0
[pid  3841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3841] setpgid(0, 0)               = 0
[pid  3841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3841] write(3, "1000", 4)         = 4
[pid  3841] close(3)                    = 0
[pid  3841] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3841] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3841] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3841] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3842], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3842
[pid  3841] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3841] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3842 attached
 <unfinished ...>
[pid  3842] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3842] pipe([3, 4])                = 0
[pid  3842] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3841] <... futex resumed>)        = 0
[pid  3841] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3841] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3842] <... futex resumed>)        = 1
[pid  3842] pipe2([5, 6], O_EXCL)       = 0
[pid  3842] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3841] <... futex resumed>)        = 0
[pid  3841] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3841] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3842] <... futex resumed>)        = 1
[pid  3842] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3841] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3841] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3841] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3841] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3841] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3841] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3841] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3841] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3843], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3843
[pid  3841] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3841] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3843 attached
 <unfinished ...>
[pid  3843] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3843] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3842] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3842] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3842] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3843] <... vmsplice resumed>)     = 1
[pid  3843] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3841] <... futex resumed>)        = 0
[pid  3841] exit_group(0 <unfinished ...>
[pid  3842] <... futex resumed>)        = ?
[pid  3841] <... exit_group resumed>)   = ?
[pid  3842] +++ exited with 0 +++
[pid  3843] <... futex resumed>)        = ?
[pid  3843] +++ exited with 0 +++
[pid  3841] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3841, 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 3844 attached
 <unfinished ...>
[pid  3844] set_robust_list(0x5555564235e0, 24) = 0
[pid  3609] <... clone resumed>, child_tidptr=0x5555564235d0) = 3844
[pid  3844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3844] setpgid(0, 0)               = 0
[pid  3844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3844] write(3, "1000", 4)         = 4
[pid  3844] close(3)                    = 0
[pid  3844] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3844] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3844] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3844] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3845], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3845
[pid  3844] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3844] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3845 attached
 <unfinished ...>
[pid  3845] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3845] pipe([3, 4])                = 0
[pid  3845] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3844] <... futex resumed>)        = 0
[pid  3844] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3844] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3845] <... futex resumed>)        = 1
[pid  3845] pipe2([5, 6], O_EXCL)       = 0
[pid  3845] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3844] <... futex resumed>)        = 0
[pid  3844] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3844] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3845] <... futex resumed>)        = 1
[pid  3845] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3844] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3844] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3844] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3844] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3844] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3844] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3846 attached
 <unfinished ...>
[pid  3846] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3844] <... clone resumed>, parent_tid=[3846], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3846
[pid  3846] <... set_robust_list resumed>) = 0
[pid  3844] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3846] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3844] <... futex resumed>)        = 0
[pid  3846] <... vmsplice resumed>)     = 1
[pid  3845] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3844] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3846] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3845] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3846] <... futex resumed>)        = 0
[pid  3845] <... futex resumed>)        = 0
[pid  3844] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3845] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3846] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3844] exit_group(0 <unfinished ...>
[pid  3846] <... futex resumed>)        = ?
[pid  3845] <... futex resumed>)        = ?
[pid  3844] <... exit_group resumed>)   = ?
[pid  3846] +++ exited with 0 +++
[pid  3845] +++ exited with 0 +++
[pid  3844] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3844, 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 3847 attached
 <unfinished ...>
[pid  3847] set_robust_list(0x5555564235e0, 24) = 0
[pid  3847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3847] setpgid(0, 0)               = 0
[pid  3847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3609] <... clone resumed>, child_tidptr=0x5555564235d0) = 3847
[pid  3847] <... openat resumed>)       = 3
[pid  3847] write(3, "1000", 4)         = 4
[pid  3847] close(3)                    = 0
[pid  3847] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3847] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3847] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3847] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3848], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3848
[pid  3847] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3847] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3848 attached
 <unfinished ...>
[pid  3848] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3848] pipe([3, 4])                = 0
[pid  3848] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3847] <... futex resumed>)        = 0
[pid  3847] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3847] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3848] <... futex resumed>)        = 1
[pid  3848] pipe2([5, 6], O_EXCL)       = 0
[pid  3848] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3847] <... futex resumed>)        = 0
[pid  3847] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3847] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3848] <... futex resumed>)        = 1
[pid  3848] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3847] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3847] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3847] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3847] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3847] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3847] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3847] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3849 attached
 <unfinished ...>
[pid  3849] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3847] <... clone resumed>, parent_tid=[3849], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3849
[pid  3847] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3849] <... set_robust_list resumed>) = 0
[pid  3847] <... futex resumed>)        = 0
[pid  3849] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3847] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3849] <... vmsplice resumed>)     = 1
[pid  3849] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3847] <... futex resumed>)        = 0
[pid  3848] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3849] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3848] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3848] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3847] exit_group(0 <unfinished ...>
[pid  3848] <... futex resumed>)        = ?
[pid  3847] <... exit_group resumed>)   = ?
[pid  3848] +++ exited with 0 +++
[pid  3849] <... futex resumed>)        = ?
[pid  3849] +++ exited with 0 +++
[pid  3847] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3847, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3850
./strace-static-x86_64: Process 3850 attached
[pid  3850] set_robust_list(0x5555564235e0, 24) = 0
[pid  3850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3850] setpgid(0, 0)               = 0
[pid  3850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3850] write(3, "1000", 4)         = 4
[pid  3850] close(3)                    = 0
[pid  3850] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3850] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3850] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3850] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3851 attached
 <unfinished ...>
[pid  3851] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3850] <... clone resumed>, parent_tid=[3851], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3851
[pid  3851] <... set_robust_list resumed>) = 0
[pid  3850] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3851] pipe( <unfinished ...>
[pid  3850] <... futex resumed>)        = 0
[pid  3850] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3851] <... pipe resumed>[3, 4])   = 0
[pid  3851] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3850] <... futex resumed>)        = 0
[pid  3851] pipe2( <unfinished ...>
[pid  3850] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3851] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3850] <... futex resumed>)        = 0
[pid  3851] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3850] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3851] <... futex resumed>)        = 0
[pid  3850] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3851] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3850] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3850] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3850] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3850] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3850] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3850] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3850] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3850] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3852 attached
, parent_tid=[3852], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3852
[pid  3852] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3850] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3852] <... set_robust_list resumed>) = 0
[pid  3850] <... futex resumed>)        = 0
[pid  3850] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3852] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3851] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3851] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3851] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3852] <... vmsplice resumed>)     = 1
[pid  3852] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3850] <... futex resumed>)        = 0
[pid  3850] exit_group(0 <unfinished ...>
[pid  3851] <... futex resumed>)        = ?
[pid  3850] <... exit_group resumed>)   = ?
[pid  3851] +++ exited with 0 +++
[pid  3852] +++ exited with 0 +++
[pid  3850] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3850, 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, child_tidptr=0x5555564235d0) = 3853
./strace-static-x86_64: Process 3853 attached
[pid  3853] set_robust_list(0x5555564235e0, 24) = 0
[pid  3853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3853] setpgid(0, 0)               = 0
[pid  3853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3853] write(3, "1000", 4)         = 4
[pid  3853] close(3)                    = 0
[pid  3853] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3853] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3853] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3853] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3854 attached
 <unfinished ...>
[pid  3854] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3854] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3853] <... clone resumed>, parent_tid=[3854], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3854
[pid  3853] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3854] <... futex resumed>)        = 0
[pid  3853] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3854] pipe([3, 4])                = 0
[pid  3854] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3853] <... futex resumed>)        = 0
[pid  3854] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3853] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3854] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3854] pipe2( <unfinished ...>
[pid  3853] <... futex resumed>)        = 0
[pid  3853] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3854] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3854] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3853] <... futex resumed>)        = 0
[pid  3854] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3853] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3853] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3853] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3853] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3853] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3853] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3853] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3855 attached
, parent_tid=[3855], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3855
[pid  3855] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3853] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3855] <... set_robust_list resumed>) = 0
[pid  3853] <... futex resumed>)        = 0
[pid  3855] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3853] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3854] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3854] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3854] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3855] <... vmsplice resumed>)     = 1
[pid  3855] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3853] <... futex resumed>)        = 0
[pid  3855] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3853] exit_group(0 <unfinished ...>
[pid  3855] <... futex resumed>)        = ?
[pid  3854] <... futex resumed>)        = ?
[pid  3853] <... exit_group resumed>)   = ?
[pid  3855] +++ exited with 0 +++
[pid  3854] +++ exited with 0 +++
[pid  3853] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3853, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3856
./strace-static-x86_64: Process 3856 attached
[pid  3856] set_robust_list(0x5555564235e0, 24) = 0
[pid  3856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3856] setpgid(0, 0)               = 0
[pid  3856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3856] write(3, "1000", 4)         = 4
[pid  3856] close(3)                    = 0
[pid  3856] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3856] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3856] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3856] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3857], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3857
./strace-static-x86_64: Process 3857 attached
[pid  3856] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3857] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3856] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3857] <... set_robust_list resumed>) = 0
[pid  3857] pipe([3, 4])                = 0
[pid  3857] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3857] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3856] <... futex resumed>)        = 0
[pid  3856] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3857] <... futex resumed>)        = 0
[pid  3857] pipe2([5, 6], O_EXCL)       = 0
[pid  3857] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3856] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3857] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3856] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3857] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3856] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3857] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3856] <... futex resumed>)        = 0
[pid  3856] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3856] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3856] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3856] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3856] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3856] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3858 attached
 <unfinished ...>
[pid  3858] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3856] <... clone resumed>, parent_tid=[3858], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3858
[pid  3858] <... set_robust_list resumed>) = 0
[pid  3858] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3856] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3858] <... vmsplice resumed>)     = 1
[pid  3857] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3856] <... futex resumed>)        = 0
[pid  3858] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3857] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3856] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3858] <... futex resumed>)        = 0
[pid  3857] <... futex resumed>)        = 0
[pid  3858] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3857] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3856] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3856] exit_group(0 <unfinished ...>
[pid  3858] <... futex resumed>)        = ?
[pid  3857] <... futex resumed>)        = ?
[pid  3856] <... exit_group resumed>)   = ?
[pid  3858] +++ exited with 0 +++
[pid  3857] +++ exited with 0 +++
[pid  3856] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3856, 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, child_tidptr=0x5555564235d0) = 3859
./strace-static-x86_64: Process 3859 attached
[pid  3859] set_robust_list(0x5555564235e0, 24) = 0
[pid  3859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3859] setpgid(0, 0)               = 0
[pid  3859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3859] write(3, "1000", 4)         = 4
[pid  3859] close(3)                    = 0
[pid  3859] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3859] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3859] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3859] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3860], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3860
[pid  3859] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3859] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3860 attached
 <unfinished ...>
[pid  3860] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3860] pipe([3, 4])                = 0
[pid  3860] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3859] <... futex resumed>)        = 0
[pid  3859] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3859] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3860] <... futex resumed>)        = 1
[pid  3860] pipe2([5, 6], O_EXCL)       = 0
[pid  3860] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3859] <... futex resumed>)        = 0
[pid  3859] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3859] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3860] <... futex resumed>)        = 1
[pid  3860] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3859] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3859] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3859] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3859] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3859] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3859] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3859] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3859] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3861], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3861
[pid  3859] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3859] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3861 attached
 <unfinished ...>
[pid  3861] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3861] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3860] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3860] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3860] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3861] <... vmsplice resumed>)     = 1
[pid  3861] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3859] <... futex resumed>)        = 0
[pid  3859] exit_group(0 <unfinished ...>
[pid  3860] <... futex resumed>)        = ?
[pid  3859] <... exit_group resumed>)   = ?
[pid  3860] +++ exited with 0 +++
[pid  3861] <... futex resumed>)        = ?
[pid  3861] +++ exited with 0 +++
[pid  3859] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3859, 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, child_tidptr=0x5555564235d0) = 3862
./strace-static-x86_64: Process 3862 attached
[pid  3862] set_robust_list(0x5555564235e0, 24) = 0
[pid  3862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3862] setpgid(0, 0)               = 0
[pid  3862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3862] write(3, "1000", 4)         = 4
[pid  3862] close(3)                    = 0
[pid  3862] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3862] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3862] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3862] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3863], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3863
[pid  3862] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3862] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3863 attached
 <unfinished ...>
[pid  3863] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3863] pipe([3, 4])                = 0
[pid  3863] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3862] <... futex resumed>)        = 0
[pid  3862] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3862] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3863] <... futex resumed>)        = 1
[pid  3863] pipe2([5, 6], O_EXCL)       = 0
[pid  3863] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3862] <... futex resumed>)        = 0
[pid  3862] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3862] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3863] <... futex resumed>)        = 1
[pid  3863] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3862] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3862] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3862] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3862] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3862] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3864], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3864
[pid  3862] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3862] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3864 attached
 <unfinished ...>
[pid  3864] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3864] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3863] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3863] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3863] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3864] <... vmsplice resumed>)     = 1
[pid  3864] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3862] <... futex resumed>)        = 0
[pid  3862] exit_group(0 <unfinished ...>
[pid  3863] <... futex resumed>)        = ?
[pid  3862] <... exit_group resumed>)   = ?
[pid  3863] +++ exited with 0 +++
[pid  3864] <... futex resumed>)        = ?
[pid  3864] +++ exited with 0 +++
[pid  3862] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3862, 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, child_tidptr=0x5555564235d0) = 3865
./strace-static-x86_64: Process 3865 attached
[pid  3865] set_robust_list(0x5555564235e0, 24) = 0
[pid  3865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3865] setpgid(0, 0)               = 0
[pid  3865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3865] write(3, "1000", 4)         = 4
[pid  3865] close(3)                    = 0
[pid  3865] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3865] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3865] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3865] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3866 attached
, parent_tid=[3866], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3866
[pid  3865] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3866] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3865] <... futex resumed>)        = 0
[pid  3866] pipe( <unfinished ...>
[pid  3865] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3866] <... pipe resumed>[3, 4])   = 0
[pid  3866] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3865] <... futex resumed>)        = 0
[pid  3865] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3865] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3866] pipe2([5, 6], O_EXCL)       = 0
[pid  3866] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3865] <... futex resumed>)        = 0
[pid  3865] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3865] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3866] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3865] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3865] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3865] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3865] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3865] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3865] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3865] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3867], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3867
[pid  3865] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3865] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3867 attached
 <unfinished ...>
[pid  3867] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3867] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3867] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3866] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3865] <... futex resumed>)        = 0
[pid  3866] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3867] <... futex resumed>)        = 1
[pid  3866] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3867] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3865] exit_group(0 <unfinished ...>
[pid  3866] <... futex resumed>)        = ?
[pid  3867] <... futex resumed>)        = ?
[pid  3865] <... exit_group resumed>)   = ?
[pid  3866] +++ exited with 0 +++
[pid  3867] +++ exited with 0 +++
[pid  3865] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3865, 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, child_tidptr=0x5555564235d0) = 3868
./strace-static-x86_64: Process 3868 attached
[pid  3868] set_robust_list(0x5555564235e0, 24) = 0
[pid  3868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3868] setpgid(0, 0)               = 0
[pid  3868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3868] write(3, "1000", 4)         = 4
[pid  3868] close(3)                    = 0
[pid  3868] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3868] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3868] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3868] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3869], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3869
[pid  3868] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3868] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3869 attached
 <unfinished ...>
[pid  3869] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3869] pipe([3, 4])                = 0
[pid  3869] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3868] <... futex resumed>)        = 0
[pid  3868] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3868] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3869] <... futex resumed>)        = 1
[pid  3869] pipe2([5, 6], O_EXCL)       = 0
[pid  3869] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3868] <... futex resumed>)        = 0
[pid  3868] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3868] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3869] <... futex resumed>)        = 1
[pid  3869] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3868] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3868] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3868] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3868] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3868] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3870 attached
, parent_tid=[3870], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3870
[pid  3868] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3868] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3870] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3870] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3869] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3869] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3870] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3869] <... futex resumed>)        = 0
[pid  3868] <... futex resumed>)        = 0
[pid  3868] exit_group(0)               = ?
[pid  3869] +++ exited with 0 +++
[pid  3870] +++ exited with 0 +++
[pid  3868] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3868, 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 3871 attached
, child_tidptr=0x5555564235d0) = 3871
[pid  3871] set_robust_list(0x5555564235e0, 24) = 0
[pid  3871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3871] setpgid(0, 0)               = 0
[pid  3871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3871] write(3, "1000", 4)         = 4
[pid  3871] close(3)                    = 0
[pid  3871] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3871] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3871] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3871] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3872 attached
 <unfinished ...>
[pid  3872] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3872] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3871] <... clone resumed>, parent_tid=[3872], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3872
[pid  3871] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3872] <... futex resumed>)        = 0
[pid  3872] pipe([3, 4])                = 0
[pid  3871] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3872] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3872] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3871] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3871] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3872] <... futex resumed>)        = 0
[pid  3872] pipe2([5, 6], O_EXCL)       = 0
[pid  3872] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3872] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3871] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3871] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3872] <... futex resumed>)        = 0
[pid  3872] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3871] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3871] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3871] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3871] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3871] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3873 attached
 <unfinished ...>
[pid  3873] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3873] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3871] <... clone resumed>, parent_tid=[3873], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3873
[pid  3871] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3873] <... futex resumed>)        = 0
[pid  3871] <... futex resumed>)        = 1
[pid  3873] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3871] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3873] <... vmsplice resumed>)     = 1
[pid  3872] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3872] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3872] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3873] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3871] <... futex resumed>)        = 0
[pid  3871] exit_group(0 <unfinished ...>
[pid  3873] ????( <unfinished ...>
[pid  3871] <... exit_group resumed>)   = ?
[pid  3873] <... ???? resumed>)         = ?
[pid  3872] <... futex resumed>)        = ?
[pid  3872] +++ exited with 0 +++
[pid  3873] +++ exited with 0 +++
[pid  3871] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3871, 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=0x5555564235d0) = 3874
./strace-static-x86_64: Process 3874 attached
[pid  3874] set_robust_list(0x5555564235e0, 24) = 0
[pid  3874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3874] setpgid(0, 0)               = 0
[pid  3874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3874] write(3, "1000", 4)         = 4
[pid  3874] close(3)                    = 0
[pid  3874] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3874] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3874] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3875 attached
, parent_tid=[3875], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3875
[pid  3874] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3875] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3874] <... futex resumed>)        = 0
[pid  3875] <... set_robust_list resumed>) = 0
[pid  3874] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3875] pipe([3, 4])                = 0
[pid  3875] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3874] <... futex resumed>)        = 0
[pid  3875] <... futex resumed>)        = 1
[pid  3874] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3875] pipe2( <unfinished ...>
[pid  3874] <... futex resumed>)        = 0
[pid  3874] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3875] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3875] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3874] <... futex resumed>)        = 0
[pid  3875] <... futex resumed>)        = 1
[pid  3874] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3875] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3874] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3874] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3874] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3874] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3874] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3876 attached
, parent_tid=[3876], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3876
[pid  3874] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3874] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3876] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3876] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3875] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3875] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3875] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3876] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3874] <... futex resumed>)        = 0
[pid  3874] exit_group(0)               = ?
[pid  3875] <... futex resumed>)        = ?
[pid  3876] +++ exited with 0 +++
[pid  3875] +++ exited with 0 +++
[pid  3874] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3874, 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 3877 attached
 <unfinished ...>
[pid  3877] set_robust_list(0x5555564235e0, 24 <unfinished ...>
[pid  3609] <... clone resumed>, child_tidptr=0x5555564235d0) = 3877
[pid  3877] <... set_robust_list resumed>) = 0
[pid  3877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3877] setpgid(0, 0)               = 0
[pid  3877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3877] write(3, "1000", 4)         = 4
[pid  3877] close(3)                    = 0
[pid  3877] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3877] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3877] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3877] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3878 attached
, parent_tid=[3878], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3878
[pid  3877] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3877] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3878] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3878] pipe([3, 4])                = 0
[pid  3878] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3877] <... futex resumed>)        = 0
[pid  3877] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3877] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3878] pipe2([5, 6], O_EXCL)       = 0
[pid  3878] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3877] <... futex resumed>)        = 0
[pid  3877] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3877] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3878] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3877] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3877] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3877] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3877] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3877] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3877] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3879], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3879
[pid  3877] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3877] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3879 attached
 <unfinished ...>
[pid  3879] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3879] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3879] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3877] <... futex resumed>)        = 0
[pid  3879] <... futex resumed>)        = 1
[pid  3878] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3879] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3878] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3878] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3877] exit_group(0)               = ?
[pid  3878] <... futex resumed>)        = ?
[pid  3879] <... futex resumed>)        = ?
[pid  3878] +++ exited with 0 +++
[pid  3879] +++ exited with 0 +++
[pid  3877] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3877, 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 3880 attached
, child_tidptr=0x5555564235d0) = 3880
[pid  3880] set_robust_list(0x5555564235e0, 24) = 0
[pid  3880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3880] setpgid(0, 0)               = 0
[pid  3880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3880] write(3, "1000", 4)         = 4
[pid  3880] close(3)                    = 0
[pid  3880] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3880] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3880] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3880] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3881], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3881
./strace-static-x86_64: Process 3881 attached
[pid  3880] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3881] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3880] <... futex resumed>)        = 0
[pid  3881] <... set_robust_list resumed>) = 0
[pid  3881] pipe([3, 4])                = 0
[pid  3881] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3881] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3880] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3880] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3881] <... futex resumed>)        = 0
[pid  3880] <... futex resumed>)        = 1
[pid  3881] pipe2( <unfinished ...>
[pid  3880] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3881] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3881] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3881] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3880] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3880] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3880] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3881] <... futex resumed>)        = 0
[pid  3881] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3880] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3880] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3880] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3880] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3880] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3882 attached
, parent_tid=[3882], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3882
[pid  3880] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3882] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3880] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3882] <... set_robust_list resumed>) = 0
[pid  3882] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3881] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3882] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3881] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3882] <... futex resumed>)        = 1
[pid  3881] <... futex resumed>)        = 0
[pid  3882] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3881] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3880] <... futex resumed>)        = 0
[pid  3880] exit_group(0 <unfinished ...>
[pid  3882] <... futex resumed>)        = ?
[pid  3881] <... futex resumed>)        = ?
[pid  3880] <... exit_group resumed>)   = ?
[pid  3882] +++ exited with 0 +++
[pid  3881] +++ exited with 0 +++
[pid  3880] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3880, 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=0x5555564235d0) = 3883
./strace-static-x86_64: Process 3883 attached
[pid  3883] set_robust_list(0x5555564235e0, 24) = 0
[pid  3883] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3883] setpgid(0, 0)               = 0
[pid  3883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3883] write(3, "1000", 4)         = 4
[pid  3883] close(3)                    = 0
[pid  3883] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3883] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3883] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3883] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3884], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3884
[pid  3883] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3883] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3884 attached
 <unfinished ...>
[pid  3884] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3884] pipe([3, 4])                = 0
[pid  3884] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3883] <... futex resumed>)        = 0
[pid  3883] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3883] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3884] <... futex resumed>)        = 1
[pid  3884] pipe2([5, 6], O_EXCL)       = 0
[pid  3884] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3883] <... futex resumed>)        = 0
[pid  3883] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3883] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3884] <... futex resumed>)        = 1
[pid  3884] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3883] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3883] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3883] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3883] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3883] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3885 attached
 <unfinished ...>
[pid  3885] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3883] <... clone resumed>, parent_tid=[3885], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3885
[pid  3885] <... set_robust_list resumed>) = 0
[pid  3883] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3885] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3883] <... futex resumed>)        = 0
[pid  3885] <... vmsplice resumed>)     = 1
[pid  3884] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3883] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3885] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3884] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3885] <... futex resumed>)        = 0
[pid  3884] <... futex resumed>)        = 0
[pid  3883] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3885] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3884] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3883] exit_group(0 <unfinished ...>
[pid  3885] <... futex resumed>)        = ?
[pid  3884] <... futex resumed>)        = ?
[pid  3883] <... exit_group resumed>)   = ?
[pid  3884] +++ exited with 0 +++
[pid  3885] +++ exited with 0 +++
[pid  3883] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3883, 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 3886 attached
, child_tidptr=0x5555564235d0) = 3886
[pid  3886] set_robust_list(0x5555564235e0, 24) = 0
[pid  3886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3886] setpgid(0, 0)               = 0
[pid  3886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3886] write(3, "1000", 4)         = 4
[pid  3886] close(3)                    = 0
[pid  3886] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3886] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3886] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3886] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3887 attached
 <unfinished ...>
[pid  3887] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3887] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3886] <... clone resumed>, parent_tid=[3887], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3887
[pid  3886] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3887] <... futex resumed>)        = 0
[pid  3887] pipe([3, 4])                = 0
[pid  3887] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3887] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3886] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3886] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3887] <... futex resumed>)        = 0
[pid  3887] pipe2([5, 6], O_EXCL)       = 0
[pid  3887] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3887] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3886] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3886] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3887] <... futex resumed>)        = 0
[pid  3886] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3887] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3886] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3886] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3886] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3886] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3886] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3888], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3888
[pid  3886] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3886] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3888 attached
 <unfinished ...>
[pid  3888] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3888] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3887] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3887] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3887] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3888] <... vmsplice resumed>)     = 1
[pid  3888] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3886] <... futex resumed>)        = 0
[pid  3886] exit_group(0 <unfinished ...>
[pid  3887] <... futex resumed>)        = ?
[pid  3886] <... exit_group resumed>)   = ?
[pid  3887] +++ exited with 0 +++
[pid  3888] <... futex resumed>)        = ?
[pid  3888] +++ exited with 0 +++
[pid  3886] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3886, 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, child_tidptr=0x5555564235d0) = 3889
./strace-static-x86_64: Process 3889 attached
[pid  3889] set_robust_list(0x5555564235e0, 24) = 0
[pid  3889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3889] setpgid(0, 0)               = 0
[pid  3889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3889] write(3, "1000", 4)         = 4
[pid  3889] close(3)                    = 0
[pid  3889] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3889] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3889] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3889] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3890], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3890
[pid  3889] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3889] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3890 attached
 <unfinished ...>
[pid  3890] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3890] pipe([3, 4])                = 0
[pid  3890] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3889] <... futex resumed>)        = 0
[pid  3889] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3889] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3890] <... futex resumed>)        = 1
[pid  3890] pipe2([5, 6], O_EXCL)       = 0
[pid  3890] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3889] <... futex resumed>)        = 0
[pid  3889] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3889] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3890] <... futex resumed>)        = 1
[pid  3890] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3889] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3889] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3889] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3889] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3889] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3889] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3889] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3891], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3891
[pid  3889] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3889] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3891 attached
 <unfinished ...>
[pid  3891] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3891] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3890] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3890] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3890] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3891] <... vmsplice resumed>)     = 1
[pid  3891] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3889] <... futex resumed>)        = 0
[pid  3889] exit_group(0 <unfinished ...>
[pid  3890] <... futex resumed>)        = ?
[pid  3889] <... exit_group resumed>)   = ?
[pid  3890] +++ exited with 0 +++
[pid  3891] <... futex resumed>)        = ?
[pid  3891] +++ exited with 0 +++
[pid  3889] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3889, 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, child_tidptr=0x5555564235d0) = 3892
./strace-static-x86_64: Process 3892 attached
[pid  3892] set_robust_list(0x5555564235e0, 24) = 0
[pid  3892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3892] setpgid(0, 0)               = 0
[pid  3892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3892] write(3, "1000", 4)         = 4
[pid  3892] close(3)                    = 0
[pid  3892] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3892] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3892] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3892] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3893], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3893
[pid  3892] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3892] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3893 attached
 <unfinished ...>
[pid  3893] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3893] pipe([3, 4])                = 0
[pid  3893] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3892] <... futex resumed>)        = 0
[pid  3892] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3892] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3893] <... futex resumed>)        = 1
[pid  3893] pipe2([5, 6], O_EXCL)       = 0
[pid  3893] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3892] <... futex resumed>)        = 0
[pid  3892] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3892] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3893] <... futex resumed>)        = 1
[pid  3893] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3892] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3892] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3892] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3892] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3892] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3892] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3894], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3894
[pid  3892] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3892] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3894 attached
 <unfinished ...>
[pid  3894] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3894] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3893] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3893] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3893] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3894] <... vmsplice resumed>)     = 1
[pid  3894] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3892] <... futex resumed>)        = 0
[pid  3892] exit_group(0 <unfinished ...>
[pid  3893] <... futex resumed>)        = ?
[pid  3892] <... exit_group resumed>)   = ?
[pid  3893] +++ exited with 0 +++
[pid  3894] <... futex resumed>)        = ?
[pid  3894] +++ exited with 0 +++
[pid  3892] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3892, 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, child_tidptr=0x5555564235d0) = 3895
./strace-static-x86_64: Process 3895 attached
[pid  3895] set_robust_list(0x5555564235e0, 24) = 0
[pid  3895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3895] setpgid(0, 0)               = 0
[pid  3895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3895] write(3, "1000", 4)         = 4
[pid  3895] close(3)                    = 0
[pid  3895] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3895] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3895] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3895] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3896], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3896
[pid  3895] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3895] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3896 attached
 <unfinished ...>
[pid  3896] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3896] pipe([3, 4])                = 0
[pid  3896] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3895] <... futex resumed>)        = 0
[pid  3895] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3895] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3896] <... futex resumed>)        = 1
[pid  3896] pipe2([5, 6], O_EXCL)       = 0
[pid  3896] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3895] <... futex resumed>)        = 0
[pid  3895] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3895] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3896] <... futex resumed>)        = 1
[pid  3896] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3895] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3895] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3895] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3895] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3895] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3897], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3897
[pid  3895] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3895] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3897 attached
 <unfinished ...>
[pid  3897] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3897] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3896] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3896] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3896] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3897] <... vmsplice resumed>)     = 1
[pid  3897] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3895] <... futex resumed>)        = 0
[pid  3895] exit_group(0 <unfinished ...>
[pid  3896] <... futex resumed>)        = ?
[pid  3895] <... exit_group resumed>)   = ?
[pid  3896] +++ exited with 0 +++
[pid  3897] <... futex resumed>)        = ?
[pid  3897] +++ exited with 0 +++
[pid  3895] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3895, 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, child_tidptr=0x5555564235d0) = 3898
./strace-static-x86_64: Process 3898 attached
[pid  3898] set_robust_list(0x5555564235e0, 24) = 0
[pid  3898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3898] setpgid(0, 0)               = 0
[pid  3898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3898] write(3, "1000", 4)         = 4
[pid  3898] close(3)                    = 0
[pid  3898] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3898] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3898] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3898] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3899], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3899
[pid  3898] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3898] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3899 attached
 <unfinished ...>
[pid  3899] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3899] pipe([3, 4])                = 0
[pid  3899] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3898] <... futex resumed>)        = 0
[pid  3898] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3898] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3899] <... futex resumed>)        = 1
[pid  3899] pipe2([5, 6], O_EXCL)       = 0
[pid  3899] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3898] <... futex resumed>)        = 0
[pid  3898] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3898] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3899] <... futex resumed>)        = 1
[pid  3899] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3898] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3898] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3898] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3898] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3898] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3898] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3898] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3900], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3900
[pid  3898] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3898] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3900 attached
 <unfinished ...>
[pid  3900] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3900] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3899] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3899] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3899] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3900] <... vmsplice resumed>)     = 1
[pid  3900] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3898] <... futex resumed>)        = 0
[pid  3898] exit_group(0 <unfinished ...>
[pid  3899] <... futex resumed>)        = ?
[pid  3898] <... exit_group resumed>)   = ?
[pid  3899] +++ exited with 0 +++
[pid  3900] <... futex resumed>)        = ?
[pid  3900] +++ exited with 0 +++
[pid  3898] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3898, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3901
./strace-static-x86_64: Process 3901 attached
[pid  3901] set_robust_list(0x5555564235e0, 24) = 0
[pid  3901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3901] setpgid(0, 0)               = 0
[pid  3901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3901] write(3, "1000", 4)         = 4
[pid  3901] close(3)                    = 0
[pid  3901] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3901] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3901] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3901] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3902], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3902
[pid  3901] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3901] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3902 attached
 <unfinished ...>
[pid  3902] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3902] pipe([3, 4])                = 0
[pid  3902] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3901] <... futex resumed>)        = 0
[pid  3901] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3901] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3902] <... futex resumed>)        = 1
[pid  3902] pipe2([5, 6], O_EXCL)       = 0
[pid  3902] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3901] <... futex resumed>)        = 0
[pid  3901] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3901] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3902] <... futex resumed>)        = 1
[pid  3902] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3901] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3901] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3901] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3901] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3901] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3903], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3903
[pid  3901] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3901] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3903 attached
 <unfinished ...>
[pid  3903] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3903] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3902] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3902] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3902] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3903] <... vmsplice resumed>)     = 1
[pid  3903] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3901] <... futex resumed>)        = 0
[pid  3901] exit_group(0 <unfinished ...>
[pid  3902] <... futex resumed>)        = ?
[pid  3901] <... exit_group resumed>)   = ?
[pid  3902] +++ exited with 0 +++
[pid  3903] <... futex resumed>)        = ?
[pid  3903] +++ exited with 0 +++
[pid  3901] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3901, 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, child_tidptr=0x5555564235d0) = 3904
./strace-static-x86_64: Process 3904 attached
[pid  3904] set_robust_list(0x5555564235e0, 24) = 0
[pid  3904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3904] setpgid(0, 0)               = 0
[pid  3904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3904] write(3, "1000", 4)         = 4
[pid  3904] close(3)                    = 0
[pid  3904] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3904] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3904] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3904] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3905 attached
, parent_tid=[3905], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3905
[pid  3905] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3905] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3904] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3905] <... futex resumed>)        = 0
[pid  3905] pipe([3, 4])                = 0
[pid  3904] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3905] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3905] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3904] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3904] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3905] <... futex resumed>)        = 0
[pid  3905] pipe2([5, 6], O_EXCL)       = 0
[pid  3905] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3905] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3904] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3904] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3905] <... futex resumed>)        = 0
[pid  3904] <... futex resumed>)        = 1
[pid  3905] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3904] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3904] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3904] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3904] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3904] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3906], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3906
[pid  3904] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3904] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3906 attached
 <unfinished ...>
[pid  3906] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3906] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3905] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3905] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3905] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3906] <... vmsplice resumed>)     = 1
[pid  3906] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3904] <... futex resumed>)        = 0
[pid  3904] exit_group(0 <unfinished ...>
[pid  3905] <... futex resumed>)        = ?
[pid  3904] <... exit_group resumed>)   = ?
[pid  3905] +++ exited with 0 +++
[pid  3906] <... futex resumed>)        = ?
[pid  3906] +++ exited with 0 +++
[pid  3904] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3904, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3907
./strace-static-x86_64: Process 3907 attached
[pid  3907] set_robust_list(0x5555564235e0, 24) = 0
[pid  3907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3907] setpgid(0, 0)               = 0
[pid  3907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3907] write(3, "1000", 4)         = 4
[pid  3907] close(3)                    = 0
[pid  3907] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3907] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3907] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3907] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3908], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3908
[pid  3907] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3907] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3908 attached
 <unfinished ...>
[pid  3908] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3908] pipe([3, 4])                = 0
[pid  3908] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3907] <... futex resumed>)        = 0
[pid  3907] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3907] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3908] <... futex resumed>)        = 1
[pid  3908] pipe2([5, 6], O_EXCL)       = 0
[pid  3908] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3907] <... futex resumed>)        = 0
[pid  3907] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3907] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3908] <... futex resumed>)        = 1
[pid  3908] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3907] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3907] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3907] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3907] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3907] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3907] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3909], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3909
[pid  3907] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3907] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3909 attached
 <unfinished ...>
[pid  3909] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3909] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3908] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3908] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3908] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3909] <... vmsplice resumed>)     = 1
[pid  3909] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3907] <... futex resumed>)        = 0
[pid  3907] exit_group(0)               = ?
[pid  3908] <... futex resumed>)        = ?
[pid  3908] +++ exited with 0 +++
[pid  3909] <... futex resumed>)        = ?
[pid  3909] +++ exited with 0 +++
[pid  3907] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3907, 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 3910 attached
, child_tidptr=0x5555564235d0) = 3910
[pid  3910] set_robust_list(0x5555564235e0, 24) = 0
[pid  3910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3910] setpgid(0, 0)               = 0
[pid  3910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3910] write(3, "1000", 4)         = 4
[pid  3910] close(3)                    = 0
[pid  3910] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3910] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3910] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3910] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3911], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3911
[pid  3910] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3910] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3911 attached
 <unfinished ...>
[pid  3911] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3911] pipe([3, 4])                = 0
[pid  3911] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3910] <... futex resumed>)        = 0
[pid  3910] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3910] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3911] <... futex resumed>)        = 1
[pid  3911] pipe2([5, 6], O_EXCL)       = 0
[pid  3911] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3910] <... futex resumed>)        = 0
[pid  3910] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3910] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3911] <... futex resumed>)        = 1
[pid  3911] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3910] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3910] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3910] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3910] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3910] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3910] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3912], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3912
[pid  3910] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3910] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3912 attached
 <unfinished ...>
[pid  3912] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3912] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3911] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3911] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3911] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3912] <... vmsplice resumed>)     = 1
[pid  3912] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3910] <... futex resumed>)        = 0
[pid  3910] exit_group(0)               = ?
[pid  3911] <... futex resumed>)        = ?
[pid  3911] +++ exited with 0 +++
[pid  3912] <... futex resumed>)        = ?
[pid  3912] +++ exited with 0 +++
[pid  3910] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3910, 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 3913 attached
, child_tidptr=0x5555564235d0) = 3913
[pid  3913] set_robust_list(0x5555564235e0, 24) = 0
[pid  3913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3913] setpgid(0, 0)               = 0
[pid  3913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3913] write(3, "1000", 4)         = 4
[pid  3913] close(3)                    = 0
[pid  3913] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3913] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3913] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3913] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3914], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3914
[pid  3913] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3913] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3914 attached
 <unfinished ...>
[pid  3914] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3914] pipe([3, 4])                = 0
[pid  3914] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3913] <... futex resumed>)        = 0
[pid  3913] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3913] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3914] <... futex resumed>)        = 1
[pid  3914] pipe2([5, 6], O_EXCL)       = 0
[pid  3914] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3913] <... futex resumed>)        = 0
[pid  3913] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3913] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3914] <... futex resumed>)        = 1
[pid  3914] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3913] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3913] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3913] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3913] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3913] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3915 attached
, parent_tid=[3915], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3915
[pid  3915] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3913] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3915] <... set_robust_list resumed>) = 0
[pid  3913] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3915] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3915] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3913] <... futex resumed>)        = 0
[pid  3915] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3914] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3914] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3914] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3913] exit_group(0)               = ?
[pid  3915] <... futex resumed>)        = ?
[pid  3915] +++ exited with 0 +++
[pid  3914] <... futex resumed>)        = ?
[pid  3914] +++ exited with 0 +++
[pid  3913] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3913, 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 3916 attached
, child_tidptr=0x5555564235d0) = 3916
[pid  3916] set_robust_list(0x5555564235e0, 24) = 0
[pid  3916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3916] setpgid(0, 0)               = 0
[pid  3916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3916] write(3, "1000", 4)         = 4
[pid  3916] close(3)                    = 0
[pid  3916] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3916] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3916] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3916] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3917 attached
, parent_tid=[3917], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3917
[pid  3917] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3916] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3917] <... set_robust_list resumed>) = 0
[pid  3916] <... futex resumed>)        = 0
[pid  3917] pipe( <unfinished ...>
[pid  3916] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3917] <... pipe resumed>[3, 4])   = 0
[pid  3917] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3916] <... futex resumed>)        = 0
[pid  3917] <... futex resumed>)        = 1
[pid  3916] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3917] pipe2( <unfinished ...>
[pid  3916] <... futex resumed>)        = 0
[pid  3916] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3917] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3917] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3916] <... futex resumed>)        = 0
[pid  3917] <... futex resumed>)        = 1
[pid  3916] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3917] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3916] <... futex resumed>)        = 0
[pid  3916] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3916] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3916] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3916] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3916] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3918 attached
 <unfinished ...>
[pid  3918] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3918] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3916] <... clone resumed>, parent_tid=[3918], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3918
[pid  3916] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3918] <... futex resumed>)        = 0
[pid  3916] <... futex resumed>)        = 1
[pid  3918] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3916] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3918] <... vmsplice resumed>)     = 1
[pid  3918] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3916] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3918] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3917] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3917] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3916] exit_group(0 <unfinished ...>
[pid  3918] <... futex resumed>)        = ?
[pid  3916] <... exit_group resumed>)   = ?
[pid  3918] +++ exited with 0 +++
[pid  3917] +++ exited with 0 +++
[pid  3916] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3916, 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, child_tidptr=0x5555564235d0) = 3919
./strace-static-x86_64: Process 3919 attached
[pid  3919] set_robust_list(0x5555564235e0, 24) = 0
[pid  3919] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3919] setpgid(0, 0)               = 0
[pid  3919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3919] write(3, "1000", 4)         = 4
[pid  3919] close(3)                    = 0
[pid  3919] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3919] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3919] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3919] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3920 attached
, parent_tid=[3920], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3920
[pid  3920] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3919] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3920] <... set_robust_list resumed>) = 0
[pid  3919] <... futex resumed>)        = 0
[pid  3919] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3920] pipe([3, 4])                = 0
[pid  3920] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3919] <... futex resumed>)        = 0
[pid  3919] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3919] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3920] pipe2([5, 6], O_EXCL)       = 0
[pid  3920] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3919] <... futex resumed>)        = 0
[pid  3919] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3919] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3920] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3919] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3919] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3919] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3919] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3919] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3921], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3921
[pid  3919] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3919] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3921 attached
 <unfinished ...>
[pid  3921] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3921] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3920] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3920] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3920] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3921] <... vmsplice resumed>)     = 1
[pid  3921] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3919] <... futex resumed>)        = 0
[pid  3919] exit_group(0 <unfinished ...>
[pid  3920] <... futex resumed>)        = ?
[pid  3919] <... exit_group resumed>)   = ?
[pid  3920] +++ exited with 0 +++
[pid  3921] <... futex resumed>)        = ?
[pid  3921] +++ exited with 0 +++
[pid  3919] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3919, 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, child_tidptr=0x5555564235d0) = 3922
./strace-static-x86_64: Process 3922 attached
[pid  3922] set_robust_list(0x5555564235e0, 24) = 0
[pid  3922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3922] setpgid(0, 0)               = 0
[pid  3922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3922] write(3, "1000", 4)         = 4
[pid  3922] close(3)                    = 0
[pid  3922] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3922] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3922] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3922] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3923], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3923
[pid  3922] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3922] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3923 attached
 <unfinished ...>
[pid  3923] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3923] pipe([3, 4])                = 0
[pid  3923] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3922] <... futex resumed>)        = 0
[pid  3922] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3922] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3923] <... futex resumed>)        = 1
[pid  3923] pipe2([5, 6], O_EXCL)       = 0
[pid  3923] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3922] <... futex resumed>)        = 0
[pid  3922] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3922] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3923] <... futex resumed>)        = 1
[pid  3923] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3922] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3922] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3922] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3922] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3922] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3924], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3924
[pid  3922] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3922] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3924 attached
 <unfinished ...>
[pid  3924] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3924] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3923] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3923] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3923] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3924] <... vmsplice resumed>)     = 1
[pid  3924] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3922] <... futex resumed>)        = 0
[pid  3922] exit_group(0 <unfinished ...>
[pid  3923] <... futex resumed>)        = ?
[pid  3922] <... exit_group resumed>)   = ?
[pid  3923] +++ exited with 0 +++
[pid  3924] <... futex resumed>)        = ?
[pid  3924] +++ exited with 0 +++
[pid  3922] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3922, 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, child_tidptr=0x5555564235d0) = 3925
./strace-static-x86_64: Process 3925 attached
[pid  3925] set_robust_list(0x5555564235e0, 24) = 0
[pid  3925] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3925] setpgid(0, 0)               = 0
[pid  3925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3925] write(3, "1000", 4)         = 4
[pid  3925] close(3)                    = 0
[pid  3925] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3925] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3925] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3925] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3926 attached
, parent_tid=[3926], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3926
[pid  3926] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3926] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3925] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3926] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3925] <... futex resumed>)        = 0
[pid  3926] pipe( <unfinished ...>
[pid  3925] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3926] <... pipe resumed>[3, 4])   = 0
[pid  3926] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3925] <... futex resumed>)        = 0
[pid  3926] pipe2( <unfinished ...>
[pid  3925] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3925] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3926] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3926] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3925] <... futex resumed>)        = 0
[pid  3926] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3925] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3926] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3925] <... futex resumed>)        = 0
[pid  3925] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3926] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3925] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3925] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3925] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3925] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3925] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3925] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3927], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3927
[pid  3925] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3925] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3927 attached
 <unfinished ...>
[pid  3927] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3927] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3927] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3925] <... futex resumed>)        = 0
[pid  3927] <... futex resumed>)        = 1
[pid  3927] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3926] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3926] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3926] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3925] exit_group(0)               = ?
[pid  3927] <... futex resumed>)        = ?
[pid  3926] <... futex resumed>)        = ?
[pid  3926] +++ exited with 0 +++
[pid  3927] +++ exited with 0 +++
[pid  3925] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3925, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3928
./strace-static-x86_64: Process 3928 attached
[pid  3928] set_robust_list(0x5555564235e0, 24) = 0
[pid  3928] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3928] setpgid(0, 0)               = 0
[pid  3928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3928] write(3, "1000", 4)         = 4
[pid  3928] close(3)                    = 0
[pid  3928] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3928] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3928] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3928] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3929 attached
, parent_tid=[3929], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3929
[pid  3928] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3929] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3928] <... futex resumed>)        = 0
[pid  3928] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3929] <... set_robust_list resumed>) = 0
[pid  3929] pipe([3, 4])                = 0
[pid  3929] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3928] <... futex resumed>)        = 0
[pid  3928] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3928] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3929] pipe2([5, 6], O_EXCL)       = 0
[pid  3929] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3928] <... futex resumed>)        = 0
[pid  3928] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3928] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3929] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3928] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3928] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3928] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3928] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3928] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3930], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3930
[pid  3928] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3928] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3930 attached
 <unfinished ...>
[pid  3930] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3930] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3929] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3929] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3929] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3930] <... vmsplice resumed>)     = 1
[pid  3930] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3928] <... futex resumed>)        = 0
[pid  3928] exit_group(0 <unfinished ...>
[pid  3929] <... futex resumed>)        = ?
[pid  3928] <... exit_group resumed>)   = ?
[pid  3929] +++ exited with 0 +++
[pid  3930] <... futex resumed>)        = ?
[pid  3930] +++ exited with 0 +++
[pid  3928] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3928, 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, child_tidptr=0x5555564235d0) = 3931
./strace-static-x86_64: Process 3931 attached
[pid  3931] set_robust_list(0x5555564235e0, 24) = 0
[pid  3931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3931] setpgid(0, 0)               = 0
[pid  3931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3931] write(3, "1000", 4)         = 4
[pid  3931] close(3)                    = 0
[pid  3931] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3931] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3931] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3931] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3932 attached
, parent_tid=[3932], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3932
[pid  3932] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3931] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3932] <... set_robust_list resumed>) = 0
[pid  3931] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3932] pipe([3, 4])                = 0
[pid  3932] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3931] <... futex resumed>)        = 0
[pid  3931] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3931] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3932] pipe2([5, 6], O_EXCL)       = 0
[pid  3932] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3931] <... futex resumed>)        = 0
[pid  3931] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3931] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3932] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3931] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3931] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3931] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3931] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3931] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3933 attached
 <unfinished ...>
[pid  3933] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3931] <... clone resumed>, parent_tid=[3933], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3933
[pid  3933] <... set_robust_list resumed>) = 0
[pid  3933] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3931] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3933] <... vmsplice resumed>)     = 1
[pid  3932] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3931] <... futex resumed>)        = 0
[pid  3933] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3931] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3933] <... futex resumed>)        = 0
[pid  3931] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3933] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3932] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3932] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3931] exit_group(0 <unfinished ...>
[pid  3933] <... futex resumed>)        = ?
[pid  3932] <... futex resumed>)        = ?
[pid  3931] <... exit_group resumed>)   = ?
[pid  3932] +++ exited with 0 +++
[pid  3933] +++ exited with 0 +++
[pid  3931] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3931, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3934
./strace-static-x86_64: Process 3934 attached
[pid  3934] set_robust_list(0x5555564235e0, 24) = 0
[pid  3934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3934] setpgid(0, 0)               = 0
[pid  3934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3934] write(3, "1000", 4)         = 4
[pid  3934] close(3)                    = 0
[pid  3934] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3934] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3934] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3934] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3935], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3935
[pid  3934] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3934] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3935 attached
 <unfinished ...>
[pid  3935] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3935] pipe([3, 4])                = 0
[pid  3935] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3934] <... futex resumed>)        = 0
[pid  3934] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3934] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3935] <... futex resumed>)        = 1
[pid  3935] pipe2([5, 6], O_EXCL)       = 0
[pid  3935] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3934] <... futex resumed>)        = 0
[pid  3934] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3934] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3935] <... futex resumed>)        = 1
[pid  3935] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3934] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3934] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3934] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3934] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3934] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3934] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3934] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3936], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3936
[pid  3934] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3934] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3936 attached
 <unfinished ...>
[pid  3936] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3936] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3935] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3935] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3936] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3935] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3934] <... futex resumed>)        = 0
[pid  3934] exit_group(0 <unfinished ...>
[pid  3935] <... futex resumed>)        = ?
[pid  3934] <... exit_group resumed>)   = ?
[pid  3935] +++ exited with 0 +++
[pid  3936] <... futex resumed>)        = ?
[pid  3936] +++ exited with 0 +++
[pid  3934] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3934, 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 3937 attached
, child_tidptr=0x5555564235d0) = 3937
[pid  3937] set_robust_list(0x5555564235e0, 24) = 0
[pid  3937] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3937] setpgid(0, 0)               = 0
[pid  3937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3937] write(3, "1000", 4)         = 4
[pid  3937] close(3)                    = 0
[pid  3937] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3937] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3937] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3937] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3938], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3938
[pid  3937] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3937] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3938 attached
 <unfinished ...>
[pid  3938] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3938] pipe([3, 4])                = 0
[pid  3938] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3938] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3937] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3937] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3938] <... futex resumed>)        = 0
[pid  3938] pipe2([5, 6], O_EXCL)       = 0
[pid  3938] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3938] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3937] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3937] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3938] <... futex resumed>)        = 0
[pid  3938] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3937] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3937] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3937] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3937] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3937] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3937] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3939], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3939
[pid  3937] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3937] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3939 attached
 <unfinished ...>
[pid  3939] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3939] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3938] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3938] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3938] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3939] <... vmsplice resumed>)     = 1
[pid  3939] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3937] <... futex resumed>)        = 0
[pid  3937] exit_group(0 <unfinished ...>
[pid  3938] <... futex resumed>)        = ?
[pid  3937] <... exit_group resumed>)   = ?
[pid  3938] +++ exited with 0 +++
[pid  3939] <... futex resumed>)        = ?
[pid  3939] +++ exited with 0 +++
[pid  3937] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3937, 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, child_tidptr=0x5555564235d0) = 3940
./strace-static-x86_64: Process 3940 attached
[pid  3940] set_robust_list(0x5555564235e0, 24) = 0
[pid  3940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3940] setpgid(0, 0)               = 0
[pid  3940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3940] write(3, "1000", 4)         = 4
[pid  3940] close(3)                    = 0
[pid  3940] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3940] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3940] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3941 attached
 <unfinished ...>
[pid  3941] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3940] <... clone resumed>, parent_tid=[3941], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3941
[pid  3940] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3940] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3941] <... set_robust_list resumed>) = 0
[pid  3941] pipe([3, 4])                = 0
[pid  3941] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3940] <... futex resumed>)        = 0
[pid  3940] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3940] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3941] pipe2([5, 6], O_EXCL)       = 0
[pid  3941] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3940] <... futex resumed>)        = 0
[pid  3940] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3940] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3941] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3940] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3940] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3940] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3940] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3940] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3942 attached
, parent_tid=[3942], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3942
[pid  3942] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3942] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3940] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3940] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3942] <... futex resumed>)        = 0
[pid  3942] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3941] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3941] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3941] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3942] <... vmsplice resumed>)     = 1
[pid  3942] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3940] <... futex resumed>)        = 0
[pid  3940] exit_group(0 <unfinished ...>
[pid  3941] <... futex resumed>)        = ?
[pid  3940] <... exit_group resumed>)   = ?
[pid  3941] +++ exited with 0 +++
[pid  3942] <... futex resumed>)        = ?
[pid  3942] +++ exited with 0 +++
[pid  3940] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3940, 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 3943 attached
, child_tidptr=0x5555564235d0) = 3943
[pid  3943] set_robust_list(0x5555564235e0, 24) = 0
[pid  3943] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3943] setpgid(0, 0)               = 0
[pid  3943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3943] write(3, "1000", 4)         = 4
[pid  3943] close(3)                    = 0
[pid  3943] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3943] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3943] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3943] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3944 attached
 <unfinished ...>
[pid  3944] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  3943] <... clone resumed>, parent_tid=[3944], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3944
[pid  3944] <... set_robust_list resumed>) = 0
[pid  3943] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3944] pipe( <unfinished ...>
[pid  3943] <... futex resumed>)        = 0
[pid  3943] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3944] <... pipe resumed>[3, 4])   = 0
[pid  3944] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3943] <... futex resumed>)        = 0
[pid  3944] pipe2( <unfinished ...>
[pid  3943] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3944] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3943] <... futex resumed>)        = 0
[pid  3944] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3943] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3944] <... futex resumed>)        = 0
[pid  3943] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3944] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3943] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3943] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3943] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3943] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3943] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3943] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3945 attached
, parent_tid=[3945], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3945
[pid  3945] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3943] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3945] <... set_robust_list resumed>) = 0
[pid  3943] <... futex resumed>)        = 0
[pid  3945] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3943] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3945] <... vmsplice resumed>)     = 1
[pid  3944] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3944] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3944] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3945] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3943] <... futex resumed>)        = 0
[pid  3945] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3943] exit_group(0)               = ?
[pid  3944] <... futex resumed>)        = ?
[pid  3944] +++ exited with 0 +++
[pid  3945] <... futex resumed>)        = ?
[pid  3945] +++ exited with 0 +++
[pid  3943] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3943, 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=0x5555564235d0) = 3946
./strace-static-x86_64: Process 3946 attached
[pid  3946] set_robust_list(0x5555564235e0, 24) = 0
[pid  3946] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3946] setpgid(0, 0)               = 0
[pid  3946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3946] write(3, "1000", 4)         = 4
[pid  3946] close(3)                    = 0
[pid  3946] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3946] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3946] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3946] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3947], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3947
[pid  3946] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3946] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3947 attached
 <unfinished ...>
[pid  3947] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3947] pipe([3, 4])                = 0
[pid  3947] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3946] <... futex resumed>)        = 0
[pid  3946] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3946] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3947] <... futex resumed>)        = 1
[pid  3947] pipe2([5, 6], O_EXCL)       = 0
[pid  3947] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3946] <... futex resumed>)        = 0
[pid  3946] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3946] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3947] <... futex resumed>)        = 1
[pid  3947] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3946] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3946] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3946] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3946] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3946] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3946] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3946] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3946] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3948], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3948
[pid  3946] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3946] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3948 attached
 <unfinished ...>
[pid  3948] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3948] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3947] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3947] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3947] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3948] <... vmsplice resumed>)     = 1
[pid  3948] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3946] <... futex resumed>)        = 0
[pid  3946] exit_group(0)               = ?
[pid  3947] <... futex resumed>)        = ?
[pid  3947] +++ exited with 0 +++
[pid  3948] <... futex resumed>)        = ?
[pid  3948] +++ exited with 0 +++
[pid  3946] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3946, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3949 attached
, child_tidptr=0x5555564235d0) = 3949
[pid  3949] set_robust_list(0x5555564235e0, 24) = 0
[pid  3949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3949] setpgid(0, 0)               = 0
[pid  3949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3949] write(3, "1000", 4)         = 4
[pid  3949] close(3)                    = 0
[pid  3949] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3949] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3949] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3949] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3950], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3950
[pid  3949] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3949] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3950 attached
 <unfinished ...>
[pid  3950] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3950] pipe([3, 4])                = 0
[pid  3950] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3949] <... futex resumed>)        = 0
[pid  3949] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3949] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3950] <... futex resumed>)        = 1
[pid  3950] pipe2([5, 6], O_EXCL)       = 0
[pid  3950] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3949] <... futex resumed>)        = 0
[pid  3949] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3949] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3950] <... futex resumed>)        = 1
[pid  3950] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3949] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3949] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3949] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3949] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3949] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3951 attached
, parent_tid=[3951], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3951
[pid  3949] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3951] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  3949] <... futex resumed>)        = 0
[pid  3951] <... set_robust_list resumed>) = 0
[pid  3949] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3951] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3951] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3949] <... futex resumed>)        = 0
[pid  3950] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3951] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3950] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3950] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3949] exit_group(0 <unfinished ...>
[pid  3950] <... futex resumed>)        = ?
[pid  3949] <... exit_group resumed>)   = ?
[pid  3950] +++ exited with 0 +++
[pid  3951] <... futex resumed>)        = ?
[pid  3951] +++ exited with 0 +++
[pid  3949] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3949, 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 3952 attached
, child_tidptr=0x5555564235d0) = 3952
[pid  3952] set_robust_list(0x5555564235e0, 24) = 0
[pid  3952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3952] setpgid(0, 0)               = 0
[pid  3952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3952] write(3, "1000", 4)         = 4
[pid  3952] close(3)                    = 0
[pid  3952] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3952] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3952] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3952] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3953 attached
, parent_tid=[3953], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3953
[pid  3952] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3952] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3953] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3953] pipe([3, 4])                = 0
[pid  3953] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3952] <... futex resumed>)        = 0
[pid  3953] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3952] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3953] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3952] <... futex resumed>)        = 0
[pid  3953] pipe2( <unfinished ...>
[pid  3952] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3953] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3953] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3952] <... futex resumed>)        = 0
[pid  3953] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3952] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3953] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3952] <... futex resumed>)        = 0
[pid  3952] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3952] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3952] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3952] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3952] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3954], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3954
./strace-static-x86_64: Process 3954 attached
[pid  3954] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3954] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3952] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3954] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3954] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3954] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3953] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3952] <... futex resumed>)        = 0
[pid  3954] <... futex resumed>)        = 0
[pid  3954] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3953] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3952] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3953] <... futex resumed>)        = 0
[pid  3953] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3952] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3952] exit_group(0 <unfinished ...>
[pid  3953] <... futex resumed>)        = ?
[pid  3952] <... exit_group resumed>)   = ?
[pid  3953] +++ exited with 0 +++
[pid  3954] <... futex resumed>)        = ?
[pid  3954] +++ exited with 0 +++
[pid  3952] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3952, 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, child_tidptr=0x5555564235d0) = 3955
./strace-static-x86_64: Process 3955 attached
[pid  3955] set_robust_list(0x5555564235e0, 24) = 0
[pid  3955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3955] setpgid(0, 0)               = 0
[pid  3955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3955] write(3, "1000", 4)         = 4
[pid  3955] close(3)                    = 0
[pid  3955] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3955] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3955] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3955] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3956], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3956
[pid  3955] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3955] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3956 attached
 <unfinished ...>
[pid  3956] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3956] pipe([3, 4])                = 0
[pid  3956] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3955] <... futex resumed>)        = 0
[pid  3955] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3955] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3956] <... futex resumed>)        = 1
[pid  3956] pipe2([5, 6], O_EXCL)       = 0
[pid  3956] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3955] <... futex resumed>)        = 0
[pid  3955] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3955] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3956] <... futex resumed>)        = 1
[pid  3956] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3955] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3955] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3955] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3955] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3955] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3955] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3955] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3957], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3957
[pid  3955] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3955] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3957 attached
 <unfinished ...>
[pid  3957] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3957] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3956] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3956] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3956] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3957] <... vmsplice resumed>)     = 1
[pid  3957] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3955] <... futex resumed>)        = 0
[pid  3955] exit_group(0 <unfinished ...>
[pid  3956] <... futex resumed>)        = ?
[pid  3955] <... exit_group resumed>)   = ?
[pid  3956] +++ exited with 0 +++
[pid  3957] <... futex resumed>)        = ?
[pid  3957] +++ exited with 0 +++
[pid  3955] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3955, 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, child_tidptr=0x5555564235d0) = 3958
./strace-static-x86_64: Process 3958 attached
[pid  3958] set_robust_list(0x5555564235e0, 24) = 0
[pid  3958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3958] setpgid(0, 0)               = 0
[pid  3958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3958] write(3, "1000", 4)         = 4
[pid  3958] close(3)                    = 0
[pid  3958] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3958] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3958] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3958] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3959], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3959
[pid  3958] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3958] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3959 attached
 <unfinished ...>
[pid  3959] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3959] pipe([3, 4])                = 0
[pid  3959] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3958] <... futex resumed>)        = 0
[pid  3958] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3958] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3959] <... futex resumed>)        = 1
[pid  3959] pipe2([5, 6], O_EXCL)       = 0
[pid  3959] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3958] <... futex resumed>)        = 0
[pid  3958] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3958] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3959] <... futex resumed>)        = 1
[pid  3959] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3958] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3958] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3958] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3958] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3958] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3958] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3958] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3958] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3958] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3960], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3960
[pid  3958] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3958] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3960 attached
 <unfinished ...>
[pid  3960] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3960] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3959] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3959] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3959] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3960] <... vmsplice resumed>)     = 1
[pid  3960] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3958] <... futex resumed>)        = 0
[pid  3958] exit_group(0 <unfinished ...>
[pid  3959] <... futex resumed>)        = ?
[pid  3958] <... exit_group resumed>)   = ?
[pid  3959] +++ exited with 0 +++
[pid  3960] <... futex resumed>)        = ?
[pid  3960] +++ exited with 0 +++
[pid  3958] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3958, 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, child_tidptr=0x5555564235d0) = 3961
./strace-static-x86_64: Process 3961 attached
[pid  3961] set_robust_list(0x5555564235e0, 24) = 0
[pid  3961] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3961] setpgid(0, 0)               = 0
[pid  3961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3961] write(3, "1000", 4)         = 4
[pid  3961] close(3)                    = 0
[pid  3961] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3961] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3961] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3961] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3962], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3962
[pid  3961] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3961] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3962 attached
 <unfinished ...>
[pid  3962] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3962] pipe([3, 4])                = 0
[pid  3962] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3961] <... futex resumed>)        = 0
[pid  3961] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3961] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3962] <... futex resumed>)        = 1
[pid  3962] pipe2([5, 6], O_EXCL)       = 0
[pid  3962] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3961] <... futex resumed>)        = 0
[pid  3961] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3961] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3962] <... futex resumed>)        = 1
[pid  3962] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3961] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3961] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3961] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3961] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3961] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3961] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3961] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3961] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3963], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3963
[pid  3961] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3961] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3963 attached
 <unfinished ...>
[pid  3963] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3963] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3962] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3962] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3962] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3963] <... vmsplice resumed>)     = 1
[pid  3963] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3961] <... futex resumed>)        = 0
[pid  3961] exit_group(0 <unfinished ...>
[pid  3962] <... futex resumed>)        = ?
[pid  3961] <... exit_group resumed>)   = ?
[pid  3962] +++ exited with 0 +++
[pid  3963] <... futex resumed>)        = ?
[pid  3963] +++ exited with 0 +++
[pid  3961] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3961, 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, child_tidptr=0x5555564235d0) = 3964
./strace-static-x86_64: Process 3964 attached
[pid  3964] set_robust_list(0x5555564235e0, 24) = 0
[pid  3964] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3964] setpgid(0, 0)               = 0
[pid  3964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3964] write(3, "1000", 4)         = 4
[pid  3964] close(3)                    = 0
[pid  3964] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3964] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3964] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3964] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3965], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3965
[pid  3964] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3964] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3965 attached
 <unfinished ...>
[pid  3965] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3965] pipe([3, 4])                = 0
[pid  3965] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3964] <... futex resumed>)        = 0
[pid  3964] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3964] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3965] <... futex resumed>)        = 1
[pid  3965] pipe2([5, 6], O_EXCL)       = 0
[pid  3965] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3964] <... futex resumed>)        = 0
[pid  3964] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3964] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3965] <... futex resumed>)        = 1
[pid  3965] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3964] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3964] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3964] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3964] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3964] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3964] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3966], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3966
[pid  3964] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3964] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3966 attached
 <unfinished ...>
[pid  3966] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3966] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3965] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3965] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3965] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3966] <... vmsplice resumed>)     = 1
[pid  3966] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3964] <... futex resumed>)        = 0
[pid  3964] exit_group(0 <unfinished ...>
[pid  3965] <... futex resumed>)        = ?
[pid  3964] <... exit_group resumed>)   = ?
[pid  3965] +++ exited with 0 +++
[pid  3966] <... futex resumed>)        = ?
[pid  3966] +++ exited with 0 +++
[pid  3964] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3964, 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, child_tidptr=0x5555564235d0) = 3967
./strace-static-x86_64: Process 3967 attached
[pid  3967] set_robust_list(0x5555564235e0, 24) = 0
[pid  3967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3967] setpgid(0, 0)               = 0
[pid  3967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3967] write(3, "1000", 4)         = 4
[pid  3967] close(3)                    = 0
[pid  3967] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3967] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3967] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3967] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3968], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3968
[pid  3967] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3967] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3968 attached
 <unfinished ...>
[pid  3968] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3968] pipe([3, 4])                = 0
[pid  3968] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3967] <... futex resumed>)        = 0
[pid  3967] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3967] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3968] <... futex resumed>)        = 1
[pid  3968] pipe2([5, 6], O_EXCL)       = 0
[pid  3968] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3967] <... futex resumed>)        = 0
[pid  3967] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3967] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3968] <... futex resumed>)        = 1
[pid  3968] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3967] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3967] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3967] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3967] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3967] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3967] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3969], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3969
[pid  3967] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3967] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3969 attached
 <unfinished ...>
[pid  3969] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3969] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3968] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3968] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3968] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3969] <... vmsplice resumed>)     = 1
[pid  3969] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3967] <... futex resumed>)        = 0
[pid  3967] exit_group(0 <unfinished ...>
[pid  3968] <... futex resumed>)        = ?
[pid  3967] <... exit_group resumed>)   = ?
[pid  3968] +++ exited with 0 +++
[pid  3969] <... futex resumed>)        = ?
[pid  3969] +++ exited with 0 +++
[pid  3967] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3967, 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, child_tidptr=0x5555564235d0) = 3970
./strace-static-x86_64: Process 3970 attached
[pid  3970] set_robust_list(0x5555564235e0, 24) = 0
[pid  3970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3970] setpgid(0, 0)               = 0
[pid  3970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3970] write(3, "1000", 4)         = 4
[pid  3970] close(3)                    = 0
[pid  3970] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3970] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3970] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3970] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3971], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3971
[pid  3970] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3970] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3971 attached
 <unfinished ...>
[pid  3971] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3971] pipe([3, 4])                = 0
[pid  3971] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3970] <... futex resumed>)        = 0
[pid  3970] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3970] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3971] <... futex resumed>)        = 1
[pid  3971] pipe2([5, 6], O_EXCL)       = 0
[pid  3971] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3970] <... futex resumed>)        = 0
[pid  3970] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3970] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3971] <... futex resumed>)        = 1
[pid  3971] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3970] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3970] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3970] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3970] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3970] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3970] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3970] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3970] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3972], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3972
[pid  3970] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3970] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3972 attached
 <unfinished ...>
[pid  3972] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3972] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3971] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3971] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3971] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3972] <... vmsplice resumed>)     = 1
[pid  3972] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3970] <... futex resumed>)        = 0
[pid  3970] exit_group(0 <unfinished ...>
[pid  3971] <... futex resumed>)        = ?
[pid  3970] <... exit_group resumed>)   = ?
[pid  3971] +++ exited with 0 +++
[pid  3972] <... futex resumed>)        = ?
[pid  3972] +++ exited with 0 +++
[pid  3970] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3970, 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 3973 attached
, child_tidptr=0x5555564235d0) = 3973
[pid  3973] set_robust_list(0x5555564235e0, 24) = 0
[pid  3973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3973] setpgid(0, 0)               = 0
[pid  3973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3973] write(3, "1000", 4)         = 4
[pid  3973] close(3)                    = 0
[pid  3973] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3973] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3973] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3973] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3974 attached
, parent_tid=[3974], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3974
[pid  3974] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3974] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3973] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3974] <... futex resumed>)        = 0
[pid  3974] pipe([3, 4])                = 0
[pid  3974] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3974] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3973] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3973] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3974] <... futex resumed>)        = 0
[pid  3974] pipe2([5, 6], O_EXCL)       = 0
[pid  3974] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3974] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3973] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3973] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3974] <... futex resumed>)        = 0
[pid  3974] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3973] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3973] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3973] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3973] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3973] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3975], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3975
[pid  3973] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3973] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3975 attached
 <unfinished ...>
[pid  3975] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3975] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3974] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3974] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3974] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3975] <... vmsplice resumed>)     = 1
[pid  3975] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3973] <... futex resumed>)        = 0
[pid  3973] exit_group(0 <unfinished ...>
[pid  3974] <... futex resumed>)        = ?
[pid  3973] <... exit_group resumed>)   = ?
[pid  3974] +++ exited with 0 +++
[pid  3975] <... futex resumed>)        = ?
[pid  3975] +++ exited with 0 +++
[pid  3973] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3973, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3976
./strace-static-x86_64: Process 3976 attached
[pid  3976] set_robust_list(0x5555564235e0, 24) = 0
[pid  3976] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3976] setpgid(0, 0)               = 0
[pid  3976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3976] write(3, "1000", 4)         = 4
[pid  3976] close(3)                    = 0
[pid  3976] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3976] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3976] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3976] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3977 attached
 <unfinished ...>
[pid  3977] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3977] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3976] <... clone resumed>, parent_tid=[3977], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3977
[pid  3976] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3977] <... futex resumed>)        = 0
[pid  3977] pipe([3, 4])                = 0
[pid  3977] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3977] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3976] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3976] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3977] <... futex resumed>)        = 0
[pid  3976] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3977] pipe2([5, 6], O_EXCL)       = 0
[pid  3977] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3977] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3976] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3976] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3977] <... futex resumed>)        = 0
[pid  3977] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3976] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3976] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3976] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3976] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3976] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3976] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3978], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3978
./strace-static-x86_64: Process 3978 attached
[pid  3978] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3978] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3976] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3978] <... futex resumed>)        = 0
[pid  3978] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3977] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3977] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3977] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3978] <... vmsplice resumed>)     = 1
[pid  3978] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3978] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3976] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3976] exit_group(0 <unfinished ...>
[pid  3977] <... futex resumed>)        = ?
[pid  3976] <... exit_group resumed>)   = ?
[pid  3978] <... futex resumed>)        = ?
[pid  3978] +++ exited with 0 +++
[pid  3977] +++ exited with 0 +++
[pid  3976] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3976, 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 3979 attached
, child_tidptr=0x5555564235d0) = 3979
[pid  3979] set_robust_list(0x5555564235e0, 24) = 0
[pid  3979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3979] setpgid(0, 0)               = 0
[pid  3979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3979] write(3, "1000", 4)         = 4
[pid  3979] close(3)                    = 0
[pid  3979] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3979] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3979] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3979] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3980 attached
 <unfinished ...>
[pid  3980] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3980] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3979] <... clone resumed>, parent_tid=[3980], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3980
[pid  3979] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3980] <... futex resumed>)        = 0
[pid  3980] pipe([3, 4])                = 0
[pid  3980] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3980] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3979] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3979] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3980] <... futex resumed>)        = 0
[pid  3980] pipe2( <unfinished ...>
[pid  3979] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3980] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3980] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3980] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3979] <... futex resumed>)        = 0
[pid  3979] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3980] <... futex resumed>)        = 0
[pid  3979] <... futex resumed>)        = 1
[pid  3980] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3979] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3979] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3979] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3979] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3979] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3981], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3981
[pid  3979] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3979] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3981 attached
 <unfinished ...>
[pid  3981] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3981] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3980] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3980] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3980] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3981] <... vmsplice resumed>)     = 1
[pid  3981] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3979] <... futex resumed>)        = 0
[pid  3979] exit_group(0 <unfinished ...>
[pid  3980] <... futex resumed>)        = ?
[pid  3979] <... exit_group resumed>)   = ?
[pid  3980] +++ exited with 0 +++
[pid  3981] <... futex resumed>)        = ?
[pid  3981] +++ exited with 0 +++
[pid  3979] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3979, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3982
./strace-static-x86_64: Process 3982 attached
[pid  3982] set_robust_list(0x5555564235e0, 24) = 0
[pid  3982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3982] setpgid(0, 0)               = 0
[pid  3982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3982] write(3, "1000", 4)         = 4
[pid  3982] close(3)                    = 0
[pid  3982] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3982] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3982] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3982] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3983 attached
, parent_tid=[3983], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3983
[pid  3983] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3983] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3982] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3983] <... futex resumed>)        = 0
[pid  3983] pipe([3, 4])                = 0
[pid  3982] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3983] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3983] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3982] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3982] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3983] <... futex resumed>)        = 0
[pid  3982] <... futex resumed>)        = 1
[pid  3983] pipe2([5, 6], O_EXCL)       = 0
[pid  3983] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3983] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3982] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3982] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3983] <... futex resumed>)        = 0
[pid  3983] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3982] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3982] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3982] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3982] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3982] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3984 attached
, parent_tid=[3984], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3984
[pid  3984] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3982] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3984] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3982] <... futex resumed>)        = 0
[pid  3984] <... vmsplice resumed>)     = 1
[pid  3982] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3983] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3983] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3983] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3984] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3982] <... futex resumed>)        = 0
[pid  3982] exit_group(0 <unfinished ...>
[pid  3983] <... futex resumed>)        = ?
[pid  3982] <... exit_group resumed>)   = ?
[pid  3983] +++ exited with 0 +++
[pid  3984] +++ exited with 0 +++
[pid  3982] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3982, 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=0x5555564235d0) = 3985
./strace-static-x86_64: Process 3985 attached
[pid  3985] set_robust_list(0x5555564235e0, 24) = 0
[pid  3985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3985] setpgid(0, 0)               = 0
[pid  3985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3985] write(3, "1000", 4)         = 4
[pid  3985] close(3)                    = 0
[pid  3985] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3985] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3985] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3985] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3986], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3986
./strace-static-x86_64: Process 3986 attached
[pid  3986] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3986] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3985] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3985] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3986] <... futex resumed>)        = 0
[pid  3986] pipe([3, 4])                = 0
[pid  3986] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3986] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3985] <... futex resumed>)        = 0
[pid  3985] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3986] <... futex resumed>)        = 0
[pid  3986] pipe2([5, 6], O_EXCL)       = 0
[pid  3985] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3986] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3986] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3985] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3985] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3986] <... futex resumed>)        = 0
[pid  3986] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3985] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3985] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3985] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3985] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3985] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3987 attached
, parent_tid=[3987], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3987
[pid  3987] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3987] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3985] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3987] <... futex resumed>)        = 0
[pid  3985] <... futex resumed>)        = 1
[pid  3987] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3986] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3986] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3986] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3987] <... vmsplice resumed>)     = 1
[pid  3987] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3987] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3985] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3985] exit_group(0 <unfinished ...>
[pid  3986] <... futex resumed>)        = ?
[pid  3985] <... exit_group resumed>)   = ?
[pid  3986] +++ exited with 0 +++
[pid  3987] <... futex resumed>)        = ?
[pid  3987] +++ exited with 0 +++
[pid  3985] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3985, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3988 attached
, child_tidptr=0x5555564235d0) = 3988
[pid  3988] set_robust_list(0x5555564235e0, 24) = 0
[pid  3988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3988] setpgid(0, 0)               = 0
[pid  3988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3988] write(3, "1000", 4)         = 4
[pid  3988] close(3)                    = 0
[pid  3988] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3988] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3988] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3988] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3989 attached
, parent_tid=[3989], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3989
[pid  3988] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3988] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3989] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3989] pipe([3, 4])                = 0
[pid  3989] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3988] <... futex resumed>)        = 0
[pid  3988] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3988] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3989] pipe2([5, 6], O_EXCL)       = 0
[pid  3989] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3988] <... futex resumed>)        = 0
[pid  3989] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3988] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3988] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3989] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3989] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3988] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3988] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3988] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3988] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3988] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3988] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3990 attached
, parent_tid=[3990], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3990
[pid  3988] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3988] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3990] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3990] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3989] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3990] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3989] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3990] <... futex resumed>)        = 1
[pid  3988] <... futex resumed>)        = 0
[pid  3988] exit_group(0)               = ?
[pid  3989] +++ exited with 0 +++
[pid  3990] +++ exited with 0 +++
[pid  3988] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3988, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 3991
./strace-static-x86_64: Process 3991 attached
[pid  3991] set_robust_list(0x5555564235e0, 24) = 0
[pid  3991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3991] setpgid(0, 0)               = 0
[pid  3991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3991] write(3, "1000", 4)         = 4
[pid  3991] close(3)                    = 0
[pid  3991] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3991] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3991] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3991] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3992 attached
, parent_tid=[3992], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3992
[pid  3991] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3991] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3992] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3992] pipe([3, 4])                = 0
[pid  3992] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3991] <... futex resumed>)        = 0
[pid  3991] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3992] pipe2( <unfinished ...>
[pid  3991] <... futex resumed>)        = 0
[pid  3991] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3992] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  3992] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3991] <... futex resumed>)        = 0
[pid  3991] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3991] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3992] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3991] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3991] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3991] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3991] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3991] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3991] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3991] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3993], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3993
[pid  3991] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3991] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3993 attached
 <unfinished ...>
[pid  3993] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3993] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  3993] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3992] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3991] <... futex resumed>)        = 0
[pid  3992] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3991] exit_group(0 <unfinished ...>
[pid  3992] <... futex resumed>)        = ?
[pid  3991] <... exit_group resumed>)   = ?
[pid  3992] +++ exited with 0 +++
[pid  3993] <... futex resumed>)        = ?
[pid  3993] +++ exited with 0 +++
[pid  3991] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3991, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3994 attached
, child_tidptr=0x5555564235d0) = 3994
[pid  3994] set_robust_list(0x5555564235e0, 24) = 0
[pid  3994] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3994] setpgid(0, 0)               = 0
[pid  3994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3994] write(3, "1000", 4)         = 4
[pid  3994] close(3)                    = 0
[pid  3994] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3994] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3994] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3994] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3995 attached
, parent_tid=[3995], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3995
[pid  3995] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3995] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3994] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3995] <... futex resumed>)        = 0
[pid  3994] <... futex resumed>)        = 1
[pid  3995] pipe([3, 4])                = 0
[pid  3995] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3995] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3994] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3994] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3995] <... futex resumed>)        = 0
[pid  3995] pipe2([5, 6], O_EXCL)       = 0
[pid  3995] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3995] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3994] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3994] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3995] <... futex resumed>)        = 0
[pid  3995] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3994] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3994] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3994] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3994] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3994] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3996], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3996
[pid  3994] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3994] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3996 attached
 <unfinished ...>
[pid  3996] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3996] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3995] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3995] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3995] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3996] <... vmsplice resumed>)     = 1
[pid  3996] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3994] <... futex resumed>)        = 0
[pid  3994] exit_group(0 <unfinished ...>
[pid  3995] <... futex resumed>)        = ?
[pid  3994] <... exit_group resumed>)   = ?
[pid  3995] +++ exited with 0 +++
[pid  3996] <... futex resumed>)        = ?
[pid  3996] +++ exited with 0 +++
[pid  3994] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3994, 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 3997 attached
, child_tidptr=0x5555564235d0) = 3997
[pid  3997] set_robust_list(0x5555564235e0, 24) = 0
[pid  3997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3997] setpgid(0, 0)               = 0
[pid  3997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3997] write(3, "1000", 4)         = 4
[pid  3997] close(3)                    = 0
[pid  3997] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3997] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  3997] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3997] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3998], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 3998
[pid  3997] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3997] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3998 attached
 <unfinished ...>
[pid  3998] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  3998] pipe([3, 4])                = 0
[pid  3998] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3997] <... futex resumed>)        = 0
[pid  3997] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3997] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3998] <... futex resumed>)        = 1
[pid  3998] pipe2([5, 6], O_EXCL)       = 0
[pid  3998] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3997] <... futex resumed>)        = 0
[pid  3997] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3997] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3998] <... futex resumed>)        = 1
[pid  3998] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  3997] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  3997] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3997] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3997] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  3997] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3997] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  3997] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3997] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3999], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 3999
[pid  3997] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3997] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3999 attached
 <unfinished ...>
[pid  3999] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  3999] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  3998] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  3998] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3998] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3999] <... vmsplice resumed>)     = 1
[pid  3999] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3997] <... futex resumed>)        = 0
[pid  3997] exit_group(0 <unfinished ...>
[pid  3998] <... futex resumed>)        = ?
[pid  3997] <... exit_group resumed>)   = ?
[pid  3998] +++ exited with 0 +++
[pid  3999] <... futex resumed>)        = ?
[pid  3999] +++ exited with 0 +++
[pid  3997] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3997, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 4000
./strace-static-x86_64: Process 4000 attached
[pid  4000] set_robust_list(0x5555564235e0, 24) = 0
[pid  4000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4000] setpgid(0, 0)               = 0
[pid  4000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4000] write(3, "1000", 4)         = 4
[pid  4000] close(3)                    = 0
[pid  4000] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4000] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4000] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4000] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4001], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4001
[pid  4000] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4000] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4001 attached
 <unfinished ...>
[pid  4001] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4001] pipe([3, 4])                = 0
[pid  4001] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4000] <... futex resumed>)        = 0
[pid  4000] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4000] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4001] <... futex resumed>)        = 1
[pid  4001] pipe2([5, 6], O_EXCL)       = 0
[pid  4001] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4000] <... futex resumed>)        = 0
[pid  4000] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4000] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4001] <... futex resumed>)        = 1
[pid  4001] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4000] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  4000] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4000] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4000] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4000] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4002], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4002
[pid  4000] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4000] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4002 attached
 <unfinished ...>
[pid  4002] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  4002] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  4001] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4001] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4001] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4002] <... vmsplice resumed>)     = 1
[pid  4002] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4000] <... futex resumed>)        = 0
[pid  4000] exit_group(0 <unfinished ...>
[pid  4001] <... futex resumed>)        = ?
[pid  4000] <... exit_group resumed>)   = ?
[pid  4001] +++ exited with 0 +++
[pid  4002] <... futex resumed>)        = ?
[pid  4002] +++ exited with 0 +++
[pid  4000] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4000, 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, child_tidptr=0x5555564235d0) = 4003
./strace-static-x86_64: Process 4003 attached
[pid  4003] set_robust_list(0x5555564235e0, 24) = 0
[pid  4003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4003] setpgid(0, 0)               = 0
[pid  4003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4003] write(3, "1000", 4)         = 4
[pid  4003] close(3)                    = 0
[pid  4003] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4003] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4003] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4003] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4004], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4004
[pid  4003] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4003] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4004 attached
 <unfinished ...>
[pid  4004] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4004] pipe([3, 4])                = 0
[pid  4004] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4003] <... futex resumed>)        = 0
[pid  4003] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4003] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4004] <... futex resumed>)        = 1
[pid  4004] pipe2([5, 6], O_EXCL)       = 0
[pid  4004] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4003] <... futex resumed>)        = 0
[pid  4003] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4003] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4004] <... futex resumed>)        = 1
[pid  4004] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4003] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  4003] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4003] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4003] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4003] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4005], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4005
[pid  4003] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4003] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4005 attached
 <unfinished ...>
[pid  4005] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  4005] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  4004] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4004] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4004] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4005] <... vmsplice resumed>)     = 1
[pid  4005] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4003] <... futex resumed>)        = 0
[pid  4003] exit_group(0 <unfinished ...>
[pid  4004] <... futex resumed>)        = ?
[pid  4003] <... exit_group resumed>)   = ?
[pid  4004] +++ exited with 0 +++
[pid  4005] <... futex resumed>)        = ?
[pid  4005] +++ exited with 0 +++
[pid  4003] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4003, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 4006
./strace-static-x86_64: Process 4006 attached
[pid  4006] set_robust_list(0x5555564235e0, 24) = 0
[pid  4006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4006] setpgid(0, 0)               = 0
[pid  4006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4006] write(3, "1000", 4)         = 4
[pid  4006] close(3)                    = 0
[pid  4006] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4006] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4006] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4006] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4007 attached
, parent_tid=[4007], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4007
[pid  4006] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4006] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4007] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4007] pipe([3, 4])                = 0
[pid  4007] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4006] <... futex resumed>)        = 0
[pid  4007] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4006] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4007] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  4006] <... futex resumed>)        = 0
[pid  4007] pipe2([5, 6], O_EXCL)       = 0
[pid  4006] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4007] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4006] <... futex resumed>)        = 0
[pid  4006] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4007] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4006] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  4006] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4006] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4006] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4006] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4008 attached
, parent_tid=[4008], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4008
[pid  4008] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  4008] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4006] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4008] <... futex resumed>)        = 0
[pid  4008] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  4008] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4008] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4007] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4007] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4006] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4007] <... futex resumed>)        = 0
[pid  4006] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  4007] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4006] exit_group(0)               = ?
[pid  4007] <... futex resumed>)        = ?
[pid  4008] <... futex resumed>)        = ?
[pid  4008] +++ exited with 0 +++
[pid  4007] +++ exited with 0 +++
[pid  4006] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4006, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564235d0) = 4009
./strace-static-x86_64: Process 4009 attached
[pid  4009] set_robust_list(0x5555564235e0, 24) = 0
[pid  4009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4009] setpgid(0, 0)               = 0
[pid  4009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4009] write(3, "1000", 4)         = 4
[pid  4009] close(3)                    = 0
[pid  4009] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4009] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4009] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4009] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4010], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4010
[pid  4009] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4009] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4010 attached
 <unfinished ...>
[pid  4010] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4010] pipe([3, 4])                = 0
[pid  4010] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4009] <... futex resumed>)        = 0
[pid  4009] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4009] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4010] <... futex resumed>)        = 1
[pid  4010] pipe2([5, 6], O_EXCL)       = 0
[pid  4010] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4009] <... futex resumed>)        = 0
[pid  4009] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4009] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4010] <... futex resumed>)        = 1
[pid  4010] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4009] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  4009] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  4009] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  4009] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4009] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4009] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4009] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4011 attached
, parent_tid=[4011], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4011
[pid  4011] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  4009] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4011] <... set_robust_list resumed>) = 0
[pid  4009] <... futex resumed>)        = 0
[pid  4011] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  4009] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4010] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4010] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4010] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4011] <... vmsplice resumed>)     = 1
[pid  4011] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4011] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4009] <... futex resumed>)        = 0
[pid  4009] exit_group(0 <unfinished ...>
[pid  4010] <... futex resumed>)        = ?
[pid  4009] <... exit_group resumed>)   = ?
[pid  4010] +++ exited with 0 +++
[pid  4011] <... futex resumed>)        = ?
[pid  4011] +++ exited with 0 +++
[pid  4009] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4009, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4012 attached
 <unfinished ...>
[pid  4012] set_robust_list(0x5555564235e0, 24) = 0
[pid  3609] <... clone resumed>, child_tidptr=0x5555564235d0) = 4012
[pid  4012] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4012] setpgid(0, 0)               = 0
[pid  4012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4012] write(3, "1000", 4)         = 4
[pid  4012] close(3)                    = 0
[pid  4012] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4012] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4012] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4012] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4013], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4013
[pid  4012] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4012] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4013 attached
 <unfinished ...>
[pid  4013] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4013] pipe([3, 4])                = 0
[pid  4013] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4012] <... futex resumed>)        = 0
[pid  4012] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4012] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4013] <... futex resumed>)        = 1
[pid  4013] pipe2([5, 6], O_EXCL)       = 0
[pid  4013] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4012] <... futex resumed>)        = 0
[pid  4012] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4012] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4013] <... futex resumed>)        = 1
[pid  4013] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4012] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  4012] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  4012] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  4012] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4012] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4012] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4012] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4014], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4014
[pid  4012] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4012] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4014 attached
 <unfinished ...>
[pid  4014] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  4014] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  4013] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4013] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4013] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4014] <... vmsplice resumed>)     = 1
[pid  4014] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4012] <... futex resumed>)        = 0
[pid  4012] exit_group(0 <unfinished ...>
[pid  4013] <... futex resumed>)        = ?
[pid  4012] <... exit_group resumed>)   = ?
[pid  4013] +++ exited with 0 +++
[pid  4014] <... futex resumed>)        = ?
[pid  4014] +++ exited with 0 +++
[pid  4012] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4012, 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, child_tidptr=0x5555564235d0) = 4015
./strace-static-x86_64: Process 4015 attached
[pid  4015] set_robust_list(0x5555564235e0, 24) = 0
[pid  4015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4015] setpgid(0, 0)               = 0
[pid  4015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4015] write(3, "1000", 4)         = 4
[pid  4015] close(3)                    = 0
[pid  4015] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4015] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4015] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4015] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4016], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4016
[pid  4015] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4015] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4016 attached
 <unfinished ...>
[pid  4016] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4016] pipe([3, 4])                = 0
[pid  4016] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4015] <... futex resumed>)        = 0
[pid  4015] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4015] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4016] <... futex resumed>)        = 1
[pid  4016] pipe2([5, 6], O_EXCL)       = 0
[pid  4016] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4015] <... futex resumed>)        = 0
[pid  4015] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4015] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4016] <... futex resumed>)        = 1
[pid  4016] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4015] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  4015] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  4015] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4015] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4015] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4015] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4017], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4017
[pid  4015] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4015] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4017 attached
 <unfinished ...>
[pid  4017] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  4017] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  4016] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4016] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4016] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4017] <... vmsplice resumed>)     = 1
[pid  4017] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4015] <... futex resumed>)        = 0
[pid  4015] exit_group(0 <unfinished ...>
[pid  4016] <... futex resumed>)        = ?
[pid  4015] <... exit_group resumed>)   = ?
[pid  4016] +++ exited with 0 +++
[pid  4017] <... futex resumed>)        = ?
[pid  4017] +++ exited with 0 +++
[pid  4015] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4015, 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, child_tidptr=0x5555564235d0) = 4018
./strace-static-x86_64: Process 4018 attached
[pid  4018] set_robust_list(0x5555564235e0, 24) = 0
[pid  4018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4018] setpgid(0, 0)               = 0
[pid  4018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4018] write(3, "1000", 4)         = 4
[pid  4018] close(3)                    = 0
[pid  4018] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4018] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4018] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4018] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4019 attached
, parent_tid=[4019], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4019
[pid  4018] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4018] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4019] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4019] pipe([3, 4])                = 0
[pid  4019] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4018] <... futex resumed>)        = 0
[pid  4018] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4018] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4019] pipe2([5, 6], O_EXCL)       = 0
[pid  4019] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4018] <... futex resumed>)        = 0
[pid  4018] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4018] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4019] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4018] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  4018] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  4018] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4018] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4018] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4018] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4020 attached
 <unfinished ...>
[pid  4020] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  4020] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4018] <... clone resumed>, parent_tid=[4020], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4020
[pid  4018] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4020] <... futex resumed>)        = 0
[pid  4020] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  4019] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4019] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4019] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4020] <... vmsplice resumed>)     = 1
[pid  4020] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4020] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4018] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  4018] exit_group(0 <unfinished ...>
[pid  4019] <... futex resumed>)        = ?
[pid  4018] <... exit_group resumed>)   = ?
[pid  4020] <... futex resumed>)        = ?
[pid  4020] +++ exited with 0 +++
[pid  4019] +++ exited with 0 +++
[pid  4018] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4018, 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, child_tidptr=0x5555564235d0) = 4021
./strace-static-x86_64: Process 4021 attached
[pid  4021] set_robust_list(0x5555564235e0, 24) = 0
[pid  4021] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4021] setpgid(0, 0)               = 0
[pid  4021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4021] write(3, "1000", 4)         = 4
[pid  4021] close(3)                    = 0
[pid  4021] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4021] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4021] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4021] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4022], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4022
[pid  4021] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4021] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4022 attached
 <unfinished ...>
[pid  4022] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4022] pipe([3, 4])                = 0
[pid  4022] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4021] <... futex resumed>)        = 0
[pid  4021] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4021] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4022] <... futex resumed>)        = 1
[pid  4022] pipe2([5, 6], O_EXCL)       = 0
[pid  4022] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4021] <... futex resumed>)        = 0
[pid  4021] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4021] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4022] <... futex resumed>)        = 1
[pid  4022] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4021] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  4021] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  4021] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  4021] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4021] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4021] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4021] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4023], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4023
[pid  4021] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4021] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4023 attached
 <unfinished ...>
[pid  4023] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  4023] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  4023] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4021] <... futex resumed>)        = 0
[pid  4022] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4023] <... futex resumed>)        = 1
[pid  4023] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4022] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4021] exit_group(0)               = ?
[pid  4022] <... futex resumed>)        = ?
[pid  4023] <... futex resumed>)        = ?
[pid  4022] +++ exited with 0 +++
[pid  4023] +++ exited with 0 +++
[pid  4021] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4021, 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 4024 attached
, child_tidptr=0x5555564235d0) = 4024
[pid  4024] set_robust_list(0x5555564235e0, 24) = 0
[pid  4024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4024] setpgid(0, 0)               = 0
[pid  4024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4024] write(3, "1000", 4)         = 4
[pid  4024] close(3)                    = 0
[pid  4024] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4024] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4024] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4025 attached
, parent_tid=[4025], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4025
[pid  4025] set_robust_list(0x7f7d8ec809e0, 24 <unfinished ...>
[pid  4024] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4025] <... set_robust_list resumed>) = 0
[pid  4024] <... futex resumed>)        = 0
[pid  4024] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4025] pipe([3, 4])                = 0
[pid  4025] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4024] <... futex resumed>)        = 0
[pid  4025] <... futex resumed>)        = 1
[pid  4024] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4025] pipe2( <unfinished ...>
[pid  4024] <... futex resumed>)        = 0
[pid  4024] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4025] <... pipe2 resumed>[5, 6], O_EXCL) = 0
[pid  4025] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4024] <... futex resumed>)        = 0
[pid  4025] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4024] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4025] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  4024] <... futex resumed>)        = 0
[pid  4025] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4024] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  4024] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4024] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4024] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4026 attached
, parent_tid=[4026], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4026
[pid  4024] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4026] set_robust_list(0x7f7d8ec5f9e0, 24 <unfinished ...>
[pid  4024] <... futex resumed>)        = 0
[pid  4026] <... set_robust_list resumed>) = 0
[pid  4024] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4026] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  4026] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4024] <... futex resumed>)        = 0
[pid  4025] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4025] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4026] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4025] <... futex resumed>)        = 0
[pid  4025] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4024] exit_group(0 <unfinished ...>
[pid  4025] <... futex resumed>)        = ?
[pid  4024] <... exit_group resumed>)   = ?
[pid  4026] <... futex resumed>)        = ?
[pid  4026] +++ exited with 0 +++
[pid  4025] +++ exited with 0 +++
[pid  4024] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4024, 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 4027 attached
, child_tidptr=0x5555564235d0) = 4027
[pid  4027] set_robust_list(0x5555564235e0, 24) = 0
[pid  4027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4027] setpgid(0, 0)               = 0
[pid  4027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4027] write(3, "1000", 4)         = 4
[pid  4027] close(3)                    = 0
[pid  4027] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4027] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4027] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4027] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4028 attached
 <unfinished ...>
[pid  4028] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4028] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4027] <... clone resumed>, parent_tid=[4028], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4028
[pid  4027] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4028] <... futex resumed>)        = 0
[pid  4028] pipe([3, 4])                = 0
[pid  4027] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4028] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4028] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4027] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  4027] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4028] <... futex resumed>)        = 0
[pid  4028] pipe2([5, 6], O_EXCL)       = 0
[pid  4027] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4028] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4028] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4027] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  4027] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4028] <... futex resumed>)        = 0
[pid  4028] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4027] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  4027] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4027] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4027] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4027] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4029], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4029
./strace-static-x86_64: Process 4029 attached
[pid  4029] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  4029] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4027] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4027] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4029] <... futex resumed>)        = 0
[pid  4029] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  4028] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4028] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4028] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4029] <... vmsplice resumed>)     = 1
[pid  4029] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4027] <... futex resumed>)        = 0
[pid  4027] exit_group(0 <unfinished ...>
[pid  4028] <... futex resumed>)        = ?
[pid  4028] +++ exited with 0 +++
[pid  4027] <... exit_group resumed>)   = ?
[pid  4029] +++ exited with 0 +++
[pid  4027] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4027, 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, child_tidptr=0x5555564235d0) = 4030
./strace-static-x86_64: Process 4030 attached
[pid  4030] set_robust_list(0x5555564235e0, 24) = 0
[pid  4030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4030] setpgid(0, 0)               = 0
[pid  4030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4030] write(3, "1000", 4)         = 4
[pid  4030] close(3)                    = 0
[pid  4030] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4030] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4030] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4030] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4031 attached
, parent_tid=[4031], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4031
[pid  4030] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4030] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4031] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4031] pipe([3, 4])                = 0
[pid  4031] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4031] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4030] <... futex resumed>)        = 0
[pid  4030] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4030] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4031] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  4031] pipe2([5, 6], O_EXCL)       = 0
[pid  4031] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4030] <... futex resumed>)        = 0
[pid  4030] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4030] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4031] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4030] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  4030] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  4030] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4030] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4030] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4030] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4032 attached
, parent_tid=[4032], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4032
[pid  4030] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4030] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4032] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  4032] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  4031] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4032] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4031] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4032] <... futex resumed>)        = 1
[pid  4030] <... futex resumed>)        = 0
[pid  4030] exit_group(0)               = ?
[pid  4031] +++ exited with 0 +++
[pid  4032] +++ exited with 0 +++
[pid  4030] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4030, 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, child_tidptr=0x5555564235d0) = 4033
./strace-static-x86_64: Process 4033 attached
[pid  4033] set_robust_list(0x5555564235e0, 24) = 0
[pid  4033] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4033] setpgid(0, 0)               = 0
[pid  4033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4033] write(3, "1000", 4)         = 4
[pid  4033] close(3)                    = 0
[pid  4033] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4033] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4033] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4033] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4034], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4034
[pid  4033] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4033] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4034 attached
 <unfinished ...>
[pid  4034] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4034] pipe([3, 4])                = 0
[pid  4034] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4033] <... futex resumed>)        = 0
[pid  4033] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4033] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4034] <... futex resumed>)        = 1
[pid  4034] pipe2([5, 6], O_EXCL)       = 0
[pid  4034] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4033] <... futex resumed>)        = 0
[pid  4033] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4033] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4034] <... futex resumed>)        = 1
[pid  4034] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4033] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  4033] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4033] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4033] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4033] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4035 attached
, parent_tid=[4035], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4035
[pid  4033] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4033] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4035] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  4035] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  4034] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4034] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4034] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4035] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4033] <... futex resumed>)        = 0
[pid  4033] exit_group(0 <unfinished ...>
[pid  4034] <... futex resumed>)        = ?
[pid  4033] <... exit_group resumed>)   = ?
[pid  4034] +++ exited with 0 +++
[pid  4035] +++ exited with 0 +++
[pid  4033] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4033, 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, child_tidptr=0x5555564235d0) = 4036
./strace-static-x86_64: Process 4036 attached
[pid  4036] set_robust_list(0x5555564235e0, 24) = 0
[pid  4036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4036] setpgid(0, 0)               = 0
[pid  4036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4036] write(3, "1000", 4)         = 4
[pid  4036] close(3)                    = 0
[pid  4036] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4036] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4036] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4037 attached
, parent_tid=[4037], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4037
[pid  4036] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4037] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4037] pipe( <unfinished ...>
[pid  4036] <... futex resumed>)        = 0
[pid  4036] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4037] <... pipe resumed>[3, 4])   = 0
[pid  4037] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4036] <... futex resumed>)        = 0
[pid  4036] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4036] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4037] pipe2([5, 6], O_EXCL)       = 0
[pid  4037] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4036] <... futex resumed>)        = 0
[pid  4037] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4036] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4037] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  4036] <... futex resumed>)        = 0
[pid  4036] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4037] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4036] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  4036] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  4036] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid  4036] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4036] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4036] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4038 attached
, parent_tid=[4038], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4038
[pid  4036] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4036] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4038] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  4038] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0) = 1
[pid  4037] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4038] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4037] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4038] <... futex resumed>)        = 1
[pid  4037] <... futex resumed>)        = 0
[pid  4036] <... futex resumed>)        = 0
[pid  4037] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4036] exit_group(0)               = ?
[pid  4037] <... futex resumed>)        = ?
[pid  4037] +++ exited with 0 +++
[pid  4038] +++ exited with 0 +++
[pid  4036] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4036, 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, child_tidptr=0x5555564235d0) = 4039
./strace-static-x86_64: Process 4039 attached
[pid  4039] set_robust_list(0x5555564235e0, 24) = 0
[pid  4039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4039] setpgid(0, 0)               = 0
[pid  4039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4039] write(3, "1000", 4)         = 4
[pid  4039] close(3)                    = 0
[pid  4039] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4039] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4039] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4039] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4040 attached
 <unfinished ...>
[pid  4040] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4040] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4039] <... clone resumed>, parent_tid=[4040], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4040
[pid  4039] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4040] <... futex resumed>)        = 0
[pid  4040] pipe( <unfinished ...>
[pid  4039] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4040] <... pipe resumed>[3, 4])   = 0
[pid  4040] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4040] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4039] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  4039] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4040] <... futex resumed>)        = 0
[pid  4040] pipe2([5, 6], O_EXCL)       = 0
[pid  4040] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4040] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4039] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  4039] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4040] <... futex resumed>)        = 0
[pid  4040] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4039] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  4039] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4039] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4039] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4039] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4041 attached
, parent_tid=[4041], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4041
[pid  4041] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  4041] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4039] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4041] <... futex resumed>)        = 0
[pid  4041] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  4040] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4040] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4040] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4041] <... vmsplice resumed>)     = 1
[pid  4041] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4041] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4039] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  4039] exit_group(0 <unfinished ...>
[pid  4040] <... futex resumed>)        = ?
[pid  4039] <... exit_group resumed>)   = ?
[pid  4041] <... futex resumed>)        = ?
[pid  4041] +++ exited with 0 +++
[pid  4040] +++ exited with 0 +++
[pid  4039] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4039, 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 4042 attached
, child_tidptr=0x5555564235d0) = 4042
[pid  4042] set_robust_list(0x5555564235e0, 24) = 0
[pid  4042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4042] setpgid(0, 0)               = 0
[pid  4042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4042] write(3, "1000", 4)         = 4
[pid  4042] close(3)                    = 0
[pid  4042] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4042] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4042] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4042] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4043 attached
 <unfinished ...>
[pid  4043] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4043] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4042] <... clone resumed>, parent_tid=[4043], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4043
[pid  4042] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4043] <... futex resumed>)        = 0
[pid  4043] pipe([3, 4])                = 0
[pid  4043] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4043] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4042] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  4042] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4043] <... futex resumed>)        = 0
[pid  4043] pipe2([5, 6], O_EXCL)       = 0
[pid  4043] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4043] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4042] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  4042] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4043] <... futex resumed>)        = 0
[pid  4043] splice(3, NULL, 6, NULL, 511, 0 <unfinished ...>
[pid  4042] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  4042] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4042] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec3f000
[pid  4042] mprotect(0x7f7d8ec40000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4042] clone(child_stack=0x7f7d8ec5f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 4044 attached
, parent_tid=[4044], tls=0x7f7d8ec5f700, child_tidptr=0x7f7d8ec5f9d0) = 4044
[pid  4044] set_robust_list(0x7f7d8ec5f9e0, 24) = 0
[pid  4044] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4042] futex(0x7f7d8ed56418, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4044] <... futex resumed>)        = 0
[pid  4044] vmsplice(4, [{iov_base="\xb5", iov_len=1}], 1, 0 <unfinished ...>
[pid  4043] <... splice resumed>)       = -1 EXDEV (Invalid cross-device link)
[pid  4043] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4043] futex(0x7f7d8ed56408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4044] <... vmsplice resumed>)     = 1
[pid  4044] futex(0x7f7d8ed5641c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4044] futex(0x7f7d8ed56418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4042] futex(0x7f7d8ed5641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  4042] exit_group(0 <unfinished ...>
[pid  4043] <... futex resumed>)        = ?
[pid  4042] <... exit_group resumed>)   = ?
[pid  4043] +++ exited with 0 +++
[pid  4044] <... futex resumed>)        = ?
[pid  4044] +++ exited with 0 +++
[pid  4042] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4042, 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 4045 attached
, child_tidptr=0x5555564235d0) = 4045
[pid  4045] set_robust_list(0x5555564235e0, 24) = 0
[pid  4045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4045] setpgid(0, 0)               = 0
[pid  4045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4045] write(3, "1000", 4)         = 4
[pid  4045] close(3)                    = 0
[pid  4045] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4045] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8ec60000
[pid  4045] mprotect(0x7f7d8ec61000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4045] clone(child_stack=0x7f7d8ec803f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4046], tls=0x7f7d8ec80700, child_tidptr=0x7f7d8ec809d0) = 4046
[pid  4045] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4045] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4046 attached
 <unfinished ...>
[pid  4046] set_robust_list(0x7f7d8ec809e0, 24) = 0
[pid  4046] pipe([3, 4])                = 0
[pid  4046] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4045] <... futex resumed>)        = 0
[pid  4045] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4045] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4046] <... futex resumed>)        = 1
[pid  4046] pipe2([5, 6], O_EXCL)       = 0
[pid  4046] futex(0x7f7d8ed5640c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4045] <... futex resumed>)        = 0
[pid  4045] futex(0x7f7d8ed56408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4045] futex(0x7f7d8ed5640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  4046] <... futex resumed>)        = 1