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  1. OpenShift Bugs
  2. OCPBUGS-62475

ovn-kubernetes control plane crashes when ovn bridge mapping is changed

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    • CORENET Sprint 277, CORENET Sprint 278
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      Description of problem:

      When changing ovn bridge mapping following error apears at ovn-kubernetes and it's restarted

      E0930 09:27:13.938412 1695315 openflow_manager.go:252] Fatal error: patch port patch-br-ex_worker-1-to-br-int ofport changed from 9 to 10

       

      Version-Release number of selected component (if applicable): 4.20

      How reproducible: Always

      Steps to Reproduce:

      Apply the following nmstates in order 

       

      1)
      
        desiredState:
          interfaces:
          - controller: ovsbr1
            name: ovsbr1-iface
            state: up
            type: ovs-interface
          - bridge:
              port:
              - name: ovsbr1-iface
            name: ovsbr1
            state: up
            type: ovs-bridge
          ovn:
            bridge-mappings:
            - bridge: ovsbr1
              localnet: net1
              state: present
      2)
      
       
          desiredState:
            interfaces:
            - name: ovsbr1-iface
              state: absent
              type: ovs-interface
            - name: ovsbr1
              state: absent
              type: ovs-bridge
            ovn:
              bridge-mappings:
              - localnet: net1
                state: absent
      

       

      Actual results:

      ovn-kubernetes control plane pod crashes with 

       

      E0930 09:27:13.938412 1695315 openflow_manager.go:252] Fatal error: patch port patch-br-ex_worker-1-to-br-int ofport changed from 9 to 10 

      Expected results:

       

      Everything should be fine

      Additional info:

      • This is blocking kubernetes-nmstate downstream CI
      • working release, controller-revision-hash": "7fcd97d866
      • failing release openvswitch3.5-3.5.1-33.el9fdp.x86_64controller-revision-hash: 6f6c59cfb5

      must gather https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/test-platform-results/logs/periodic-ci-openshift-kubernetes-nmstate-release-4.20-e2e-handler-ovn-ipv4-nightly-periodic/1972843185721839616/artifacts/e2e-handler-ovn-ipv4-nightly-periodic/gather-must-gather/artifacts/

              pdiak@redhat.com Patryk Diak
              ellorent Felix Enrique Llorente Pastora
              None
              None
              Anurag Saxena Anurag Saxena
              None
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                Created:
                Updated: