prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x0, 0x0, &(0x7f0000000000)) r0 = epoll_create(0x9) epoll_pwait(r0, &(0x7f0000000040)=[{}], 0x1, 0x0, 0x0, 0x0)