__NR_epoll_wait 60 opal/mca/event/libevent2022/libevent/epoll_sub.c #if !defined(__NR_epoll_wait) && defined(__NR_epoll_pwait) __NR_epoll_wait 63 opal/mca/event/libevent2022/libevent/epoll_sub.c return (syscall(__NR_epoll_wait, epfd, events, maxevents, timeout));