It got a packet loss on iperf test. WRLinux-5.0.1 seems send a invaild packet to the peer. Please see the packet capture.
[SabreSDB/WRLinux-5.0.1] [Linux Host/Ubuntu 12.04] 192.168.0.90/iperf client <== 100BASE-TX HUB ==> 192.168.0.100/iperf server [Linux Host/Ubuntu 12.04] 1) iperf -s -u -i 1 2) Wireshark(*1) *1: Wireshark's Filter: !udp && !tcp && !arp && !igmp && !icmpv6 && !icmp && !ip [SabreSDB/WRLinux-5.0.1] 1) build malloc_loop.c 2) ./run_malloc_loop.sh 3) iperf -c 192.168.0.100 -u -i 1 -b 90M -t 9999999 ==> Wireshark got the attached packet capture. The packet data seems u-boot code(address is 0). If you can not reproduce this issue, please use the attached iperf-2.0.5_for_imx6.tar.gz on WRLinux-5.0.1.