[also CCing Joe on the chance that he wants to comment] On Fri, Apr 06, 2018 at 09:34:38AM +0000, Jan Scheurich wrote: > > -----Original Message----- > > From: Ben Pfaff [mailto:[email protected]] > > Sent: Wednesday, 04 April, 2018 22:28 > > > > Oh, that's weird. It's as if I didn't read the patch. Maybe I just > > read some preliminary version in another thread. > > > > Anyway, you're totally right. I applied this to master. If you're > > seeing problems in another branch, let me know and I will backport. > > Thanks! > > I think the issue was introduced into OVS by the following commit a long time > ago. > > commit 23597df052262dec961fd86eb7c54d10984a1ec0 > Author: Joe Stringer <[email protected]> > Date: Fri Jul 25 13:54:24 2014 +1200 > > It's a temporary glitch that can cause unexpected behavior only within > the first few hundred milliseconds after datapath flow creation. It is > most likely to affect "reactive" controller use cases (MAC learning, > ARP handling), like the OVN test case that now failed with a small > change of timing. So it is possible that one could notice short packet > drops or duplicate PACKET_INs in real SDN deployments when looking > close enough. > > My preference would be to backport it all the way to OVS 2.5. But of > course I don't have proof that there are actual problems out in the > field that it would solve.
OK. I am going to sit on this for a few days and see whether anyone reports unusual issues. If nothing arises, I'll backport as far as reasonable. Thanks, Ben. _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
