2017-07-15 21:13:33.133 6 DEBUG ....openflow.native.ofswitch [ - - - - -] Reserved cookies for br-ex: set([13674996511809417037L]) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
So 0xbdc758dfcf1b2f4d is one of the reserved cookies of br-ex, but was also found when listing flows on br-ex2. A flow was created on a bridge (be-ex2) with a cookie that is a registered cookie on another bridge (br-ex). This, of course, is not supposed to happen.
I haven't yet looked further what could be the root cause.
I've had a look at Margin's last trace.
(only the lines related to cookies and stale flow deletion, edited for readability)
2017-07-15 21:13:27.052 6 INFO neutron. common. config [-] /usr/bin/ neutron- openvswitch- agent version 10.0.1 native. ofswitch [ - - - - -] Reserved cookies for br-int: set([1038556402 0546830277L] ) native. ofswitch [ - - - - -] Reserved cookies for provision: set([1090050281 8113047970L] ) native. ofswitch [ - - - - -] Reserved cookies for br-ex2: set([9707595023 152995281L] )
2017-07-15 21:13:33.118 6 DEBUG ....openflow.
2017-07-15 21:13:33.120 6 DEBUG ....openflow.
2017-07-15 21:13:33.124 6 DEBUG ....openflow.
2017-07-15 21:13:33.125 6 WARNING ....openflow. native. ofswitch [ - - - - -] Deleting flow with cookie 0x0 native. ofswitch [ - - - - -] Deleting flow with cookie 0xbdc758dfcf1b2f4d
^^^ ^^^^^^^ ^^^^^^^ ^
2017-07-15 21:13:33.128 6 WARNING ....openflow.
2017-07-15 21:13:33.133 6 DEBUG ....openflow. native. ofswitch [ - - - - -] Reserved cookies for br-ex: set([1367499651 1809417037L] )
^^^^ ^^^^^^^ ^^^^^^^ ^^^^^^^ ^^^
So 0xbdc758dfcf1b2f4d is one of the reserved cookies of br-ex, but was also found when listing flows on br-ex2. A flow was created on a bridge (be-ex2) with a cookie that is a registered cookie on another bridge (br-ex). This, of course, is not supposed to happen.
I haven't yet looked further what could be the root cause.