Description of problem:

While running conformance on MicroShift 4.17 and 4.18 we came across this log (which produces hundreds of events):

2024-09-01T00:40:09.211425034Z E0901 00:40:09.211403 82433 obj_retry.go:671] Failed to update *v1.Node, old=i-092bdd4684a07552a.us-west-2.compute.internal, new=i-092bdd4684a07552a.us-west-2.compute.internal, error: error creating gateway for node i-092bdd4684a07552a.us-west-2.compute.internal: failed to configure the policy based routes for network "default": invalid host address: 10.44.0.0/32
2024-09-01T00:40:09.211454405Z I0901 00:40:09.211448 82433 default_network_controller.go:723] Recording error event for node i-092bdd4684a07552a.us-west-2.compute.internal
2024-09-01T00:40:09.211477486Z I0901 00:40:09.211466 82433 ovn.go:104] Posting a Warning event for node i-092bdd4684a07552a.us-west-2.compute.internal 

Was informed by a network team member that the issue was fixed upstream here: https://github.com/ovn-org/ovn-kubernetes/pull/4659

Opening this bug because we are impacted in both 4.18 and 4.17.
 
Version-Release number of selected component (if applicable):

How reproducible:

Running conformance on MicroShift.

Steps to Reproduce:

1.

2.

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Actual results:

Expected results:

Additional info:

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Affected Platforms:

Is it an

1. internal CI failure
2. customer issue / SD
3. internal RedHat testing failure

If it is an internal RedHat testing failure:

• Please share a kubeconfig or creds to a live cluster for the assignee to debug/troubleshoot along with reproducer steps (specially if it's a telco use case like ICNI, secondary bridges or BM+kubevirt).

If it is a CI failure:

• Did it happen in different CI lanes? If so please provide links to multiple failures with the same error instance
• Did it happen in both sdn and ovn jobs? If so please provide links to multiple failures with the same error instance
• Did it happen in other platforms (e.g. aws, azure, gcp, baremetal etc) ? If so please provide links to multiple failures with the same error instance
• When did the failure start happening? Please provide the UTC timestamp of the networking outage window from a sample failure run
• If it's a connectivity issue,
• What is the srcNode, srcIP and srcNamespace and srcPodName?
• What is the dstNode, dstIP and dstNamespace and dstPodName?
• What is the traffic path? (examples: pod2pod? pod2external?, pod2svc? pod2Node? etc)

If it is a customer / SD issue:

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  • If the issue is in a customer namespace then provide a namespace inspect.
  • If it is a connectivity issue:
    • What is the srcNode, srcNamespace, srcPodName and srcPodIP?
    • What is the dstNode, dstNamespace, dstPodName and dstPodIP?
    • What is the traffic path? (examples: pod2pod? pod2external?, pod2svc? pod2Node? etc)
    • Please provide the UTC timestamp networking outage window from must-gather
    • Please provide tcpdump pcaps taken during the outage filtered based on the above provided src/dst IPs
  • If it is not a connectivity issue:
    • Describe the steps taken so far to analyze the logs from networking components (cluster-network-operator, OVNK, SDN, openvswitch, ovs-configure etc) and the actual component where the issue was seen based on the attached must-gather. Please attach snippets of relevant logs around the window when problem has happened if any.

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