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  1. OpenShift Bugs
  2. OCPBUGS-46039

Azure Cloud Controller Manager Panic

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      Cause: In certain scenarios, an event may be missed by the informer watch stream. If an object is deleted while this disconnection occurs, the informer may return a different type, to signify that the state may be stale, but the object is now deleted
      Consequence: The returned type was not as expeceted and caused a panic
      Fix: Ensure that unexpected types are correctly handled, and avoid panics
      Result: The temporary disconnection possibilities are now handled correctly
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      Cause: In certain scenarios, an event may be missed by the informer watch stream. If an object is deleted while this disconnection occurs, the informer may return a different type, to signify that the state may be stale, but the object is now deleted Consequence: The returned type was not as expeceted and caused a panic Fix: Ensure that unexpected types are correctly handled, and avoid panics Result: The temporary disconnection possibilities are now handled correctly
    • Bug Fix
    • In Progress

      This is a clone of issue OCPBUGS-45972. The following is the description of the original issue:
      —
      This is a clone of issue OCPBUGS-45859. The following is the description of the original issue:
      —
      The following test is failing more than expected:

      Undiagnosed panic detected in pod

      See the sippy test details for additional context.

      Observed in 4.18-e2e-azure-ovn/1864410356567248896 as well as pull-ci-openshift-installer-master-e2e-azure-ovn/1864312373058211840

      : Undiagnosed panic detected in pod
{  pods/openshift-cloud-controller-manager_azure-cloud-controller-manager-5788c6f7f9-n2mnh_cloud-controller-manager_previous.log.gz:E1204 22:27:54.558549       1 iface.go:262] "Observed a panic" panic="interface conversion: interface {} is cache.DeletedFinalStateUnknown, not *v1.EndpointSlice" panicGoValue="&runtime.TypeAssertionError{_interface:(*abi.Type)(0x291daa0), concrete:(*abi.Type)(0x2b73880), asserted:(*abi.Type)(0x2f5cc20), missingMethod:\"\"}" stacktrace=<}

            [OCPBUGS-46039] Azure Cloud Controller Manager Panic

            Errata Tool added a comment -

            Since the problem described in this issue should be resolved in a recent advisory, it has been closed.

            For information on the advisory (OpenShift Container Platform 4.17.11 bug fix update), 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/RHBA-2025:0023

            Errata Tool added a comment - Since the problem described in this issue should be resolved in a recent advisory, it has been closed. For information on the advisory (OpenShift Container Platform 4.17.11 bug fix update), 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/RHBA-2025:0023

            Zhaohua Sun added a comment -

            no panic in ccm logs, move to verified. clusterversion 4.17.0-0.nightly-2024-12-29-132610 

            Zhaohua Sun added a comment - no panic in ccm logs, move to verified. clusterversion 4.17.0-0.nightly-2024-12-29-132610 

              joelspeed Joel Speed
              openshift-crt-jira-prow OpenShift Prow Bot
              Zhaohua Sun Zhaohua Sun
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                Created:
                Updated:
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