Hi OVS-team, We had just met a problem in our customer environments, the ovs-vswitchd log appears in everyday like this: WARN|system@ovs-system: lost packet on port channel 5 of handler 8
OVS version: # ovs-vsctl --version ovs-vsctl (Open vSwitch) 2.9.0 DB Schema 7.15.1 >From the ovs-dpctl show command, all the port channel is Linux bond bridged in >OVS as our tenant network in OpenStack product. >From the ovs-vswitchd log, we searched the OVS code, it seems the netlink >socket receive buffer overflowed: https://github.com/openvswitch/ovs/blob/branch-2.9/lib/dpif-netlink.c#L2595-L2603 We noticed that the value had changed to 1024kB * 1024kB (1MB) in version v1.4: https://github.com/openvswitch/ovs/blob/branch-1.4/lib/netlink-socket.c#L126 >From the mail list, there is a method using hping3 to generated lots of new >flows per second: https://mail.openvswitch.org/pipermail/ovs-git/2012-March/012015.html I try it in out test environment, but not see the previous warnning log. Can someone provides more detail method of using hping3 try to reproduce the problem in the ovs-vswitchd log? Thanks. _______________________________________________ discuss mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
