[pid 2406] accept4(3, <unfinished ...> [pid 2407] sched_yield( <unfinished ...> [pid 2406] <... accept4 resumed> {sa_family=AF_INET, sin_port=htons(42741), sin_addr=inet_addr("127.0.0.1")}, [16], SOCK_CLOEXEC|SOCK_NONBLOCK) = 5 [pid 2406] epoll_ctl(4, EPOLL_CTL_ADD, 5, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=1105458016, u64=139991269503840}}) = 0 [pid 2406] getsockname(5, {sa_family=AF_INET, si