On Thu, Jun 6, 2019 at 11:35 PM David Ahern <dsah...@gmail.com> wrote: > > On 6/2/19 5:10 AM, Xin Long wrote: > > In Jianlin's testing, netperf was broken with 'Connection reset by peer', > > as the cookie check failed in rt6_check() and ip6_dst_check() always > > returned NULL. > > Any particular test or setup that is causing the reset? I do not see > that problem in general. > by running the script below, netperf ends up with:
Connection reset by peer netperf: remote error 104 -------------------------- #!/bin/bash ip netns add client ip netns add server ip netns add route ip link add veth0_c type veth peer name veth0_cr ip link add veth0_s type veth peer name veth0_sr ip link set veth0_c netns client ip link set veth0_s netns server ip link set veth0_cr netns route ip link set veth0_sr netns route ip netns exec client ip link set lo up ip netns exec client ip link set veth0_c up ip netns exec server ip link set lo up ip netns exec server ip link set veth0_s up ip netns exec route ip link set lo up ip netns exec route ip link set veth0_cr up ip netns exec route ip link set veth0_sr up ip netns exec client ip addr add 2000::1/64 dev veth0_c ip netns exec client ip addr add 10.10.0.1/24 dev veth0_c ip netns exec route ip addr add 2000::a/64 dev veth0_cr ip netns exec route ip addr add 10.10.0.254/24 dev veth0_cr ip netns exec server ip addr add 2001::1/64 dev veth0_s ip netns exec server ip addr add 10.10.1.1/24 dev veth0_s ip netns exec route ip addr add 2001::a/64 dev veth0_sr ip netns exec route ip addr add 10.10.1.254/24 dev veth0_sr ip netns exec client ip route add default via 10.10.0.254 ip netns exec client ip -6 route add default via 2000::a ip netns exec server ip route add default via 10.10.1.254 ip netns exec server ip -6 route add default via 2001::a ip netns exec route sysctl -w net.ipv4.conf.all.forwarding=1 ip netns exec route sysctl -w net.ipv6.conf.all.forwarding=1 ip netns exec client ping 10.10.1.1 -c 2 ip netns exec client ping6 2001::1 -c 2 ip netns exec route ip link set veth0_sr mtu 1400 ip netns exec server ip link set veth0_s mtu 1400 ip netns exec server netserver -d ip netns exec client ping6 2001::1 -c 1 -s 1400 -M do ip netns exec client ip route get 2001::1 ip netns exec client ip link set veth0_c mtu 1300 ip netns exec client ip route get 2001::1 ip netns exec client ip link set veth0_c mtu 1600 ip netns exec client ip route get 2001::1 ip netns exec client ping6 2001::1 -c 1 -s 1400 -M do ip netns exec client ip route get 2001::1 ip netns exec client netperf -6 -H 2001::1 -t SCTP_STREAM -l 30 -- -m 16k & #ip netns exec client netperf -6 -H 2001::1 -t TCP_STREAM -l 30 -- -m 16k & #ip netns exec client netperf -6 -H 2001::1 -t UDP_STREAM -l 30 -- -R 1 & pid=$! for i in `seq 1 5` do ip netns exec client ip link set veth0_c mtu 1300 sleep 1 ip netns exec client ip link set veth0_c mtu 1600 sleep 1 done wait $pid
