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498e3efe74
The test relied on a 100ms sleep to ensure that controller was done. If that race was lost, one goroutine was intentionally prevented from completing by locking a mutex permanently. A TODO was left about detecting that. Adding goroutine leak checking in https://github.com/kubernetes/kubernetes/pull/126387 revealed that this race indeed sometimes is lost because the goroutine leaked (https://github.com/kubernetes/kubernetes/issues/129400). Waiting for controller shutdown instead of relying on timing should fix this. Kubernetes-commit: 8e1403563a60f3b7a258e3bbb64b5c3a7f6548fb