Public bug reported:

I set up a nicely working OVS-DPDK with KVM Guests.
Then in a loop I
   - add up to 512 ports
   - test connectivity
   - remove up to 512 ports

The effective error is like the issues discussed upstream about >1023 file 
descriptors - OVS-DPDK crashes due to that.
A lot in the log afterwards are just follow on issues.

But the problem of this bug is that there has to be some sort of leak of file 
descriptors (or something else depending on analysis).
Because one would expect that adding/removing the same amount of ports should 
not exceed any "more" of a limit than in the first iteration.

Of 12 planned iterations in 2 of 2 tries I now always failed at iteration 6.
So I hope it is rather reproducible and will start debugging it.

** Affects: dpdk (Ubuntu)
     Importance: Medium
         Status: Triaged

** Affects: openvswitch-dpdk (Ubuntu)
     Importance: High
     Assignee: ChristianEhrhardt (paelzer)
         Status: Triaged

** Also affects: openvswitch-dpdk (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: dpdk (Ubuntu)
       Status: New => Triaged

** Changed in: dpdk (Ubuntu)
   Importance: Undecided => Medium

** Changed in: openvswitch-dpdk (Ubuntu)
       Status: New => Triaged

** Changed in: openvswitch-dpdk (Ubuntu)
   Importance: Undecided => High

** Changed in: openvswitch-dpdk (Ubuntu)
     Assignee: (unassigned) => ChristianEhrhardt (paelzer)

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https://bugs.launchpad.net/bugs/1570466

Title:
  Adding removing/ports leaks file descriptors

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