On Fri, 30 Mar 2018 00:00:04 +0800 Jeff Guo <jia.guo at intel.com> wrote: > + ret = ioctl(netlink_fd, FIONBIO, &nonblock); > + if (ret != 0) { > + RTE_LOG(ERR, EAL, "ioctl(FIONBIO) failed.\n"); > + goto err; > + } > + retu Since you use NOWAIT option, this is unnecessary.