The below commits need to be applied to OVS 2.6, we will provide a hotfix for this: ++ a1d6cce78 2017-09-06 | ofproto-dpif-upcall: Transition ukey on dp_ops error. [Joe Stringer] ++b5a758781 2017-04-26 | revalidator: Improve logging for transition_ukey(). [Joe Stringer] ++ 6997d54e1 2017-04-26 | revalidator: Avoid assert in transition_ukey(). [Joe Stringer] ++ e34bbe31b 2017-03-20 | ofproto-dpif-upcall: Fix flow setup/delete race. [Joe Stringer] ++ 353fe1e14 2017-01-10 | revalidator: Complain for more ukey transitions. [Joe Stringer] ++ 154781666 2017-01-10 | revalidator: Prevent double-delete of ukey. [Joe Stringer]
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2018:2102