Hi,

The warning is not particularly bad. A "revalidator" might fail to delete
a flow for good reasons (especially under heavy load).
It would be interesting to know more about the problems you're facing:

- What is your setup? (output of ovs-vsctl show)
- Are you working with OVS from current master? Which commit are you using?
- What exactly is not working? Are you trying to ping between two ports?

Thanks,

Daniele

On 10/9/14, 6:51 AM, "MCGRATH, GIL" <gm2...@att.com> wrote:

>All,
>
>
>I created two servers with DPDK on ubuntu 14.04 from trunk.
>
>
>I have a bridge and port configured.
>
>
>But I am getting the a warning message every second on both servers.
>Below is output when restarting ovs from ovs-vswitchd.log. The last
>warning repeats every second.
>Can someone tell what I may have done wrong?
>
>
># cat  /usr/local/var/log/openvswitch/ovs-vswitchd.log
>2014-10-09T13:38:54.331Z|00001|vlog|INFO|opened log file
>/usr/local/var/log/openvswitch/ovs-vswitchd.log
>2014-10-09T13:38:54.331Z|00002|ovs_numa|INFO|Discovered 20 CPU cores on
>NUMA node 0
>2014-10-09T13:38:54.332Z|00003|ovs_numa|INFO|Discovered 20 CPU cores on
>NUMA node 1
>2014-10-09T13:38:54.332Z|00004|ovs_numa|INFO|Discovered 2 NUMA nodes and
>40 CPU cores
>2014-10-09T13:38:54.332Z|00005|reconnect|INFO|unix:/usr/local/var/run/open
>vswitch/db.sock: connecting...
>2014-10-09T13:38:54.332Z|00006|dpdk|INFO|Ethernet Device Count: 1
>2014-10-09T13:38:54.332Z|00007|reconnect|INFO|unix:/usr/local/var/run/open
>vswitch/db.sock: connected
>2014-10-09T13:38:54.340Z|00008|ofproto_dpif|INFO|netdev@ovs-netdev:
>Datapath supports recirculation
>2014-10-09T13:38:54.340Z|00009|ofproto_dpif|INFO|netdev@ovs-netdev: MPLS
>label stack length probed as 3
>2014-10-09T13:38:54.342Z|00010|bridge|INFO|bridge br-p1p1: added
>interface br-p1p1 on port 65534
>2014-10-09T13:38:54.343Z|00011|dpif_netlink|ERR|Generic Netlink family
>'ovs_datapath' does not exist. The Open vSwitch kernel module is probably
>not loaded.
>2014-10-09T13:38:54.574Z|00012|dpdk|INFO|Port 0: 38:ea:a7:8f:21:54
>2014-10-09T13:38:54.765Z|00013|dpdk|INFO|Port 0: 38:ea:a7:8f:21:54
>2014-10-09T13:38:54.765Z|00014|dpif_netdev|INFO|Created 1 pmd threads on
>numa node 0
>2014-10-09T13:38:54.765Z|00015|bridge|INFO|bridge br-p1p1: added
>interface dpdk0 on port 3
>2014-10-09T13:38:54.765Z|00016|bridge|INFO|bridge br-p1p1: using datapath
>ID 000038eaa78f2154
>2014-10-09T13:38:54.765Z|00017|connmgr|INFO|br-p1p1: added service
>controller "punix:/usr/local/var/run/openvswitch/br-p1p1.mgmt"
>2014-10-09T13:38:54.767Z|00018|dpif_netdev|INFO|Created 1 pmd threads on
>numa node 0
>2014-10-09T13:38:54.769Z|00019|bridge|INFO|ovs-vswitchd (Open vSwitch)
>2.3.90
>2014-10-09T13:39:04.339Z|00020|memory|INFO|7520 kB peak resident set size
>after 10.0 seconds
>2014-10-09T13:39:04.339Z|00021|memory|INFO|handlers:14 ports:2
>revalidators:6 rules:6 udpif keys:2
>2014-10-09T13:41:00.349Z|00001|dpif(revalidator33)|WARN|netdev@ovs-netdev:
> failed to flow_del (No such file or directory)
>skb_priority(0),skb_mark(0),recirc_id(0),dp_hash(0),in_port(2),eth(src=b4:
>b5:2f:70:b3:60,dst=01:00:5e:00:00:01),eth_type(0x8100),vlan(vid=103,pcp=0)
>,encap(eth_type(0x0800),ipv4(src=0.0.0.0,dst=224.0.0.1,proto=2,tos=0xc0,tt
>l=1,frag=no))
>2014-10-09T13:41:10.860Z|00002|dpif(revalidator33)|WARN|netdev@ovs-netdev:
> failed to flow_del (No such file or directory)
>skb_priority(0),skb_mark(0),recirc_id(0),dp_hash(0),in_port(2),eth(src=b4:
>b5:2f:70:b3:60,dst=01:00:5e:00:00:01),eth_type(0x8100),vlan(vid=103,pcp=0)
>,encap(eth_type(0x0800),ipv4(src=0.0.0.0,dst=224.0.0.1,proto=2,tos=0xc0,tt
>l=1,frag=no))
>

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