When the scheduling queue receives a cluster event, before moving each Pod from unschedulable pod pool to activeQ/backoffQ, it will call QueueingHintFn of plugins that rejected each Pod in the previous scheduling cycle.
  Depending on the value returned from QueueingHintFn, the scheduling queue changes how it queues each Pod:
  - if more than one QueueingHintFn returns QueueImmediately, it queues Pod to activeQ.

- `process_start_time_seconds` has been added to kubelet’s '/metrics/probes' endpoint ([#77975](https://github.com/kubernetes/kubernetes/pull/77975), [@logicalhan](https://github.com/logicalhan))

          [n]T, *[n]T      array length (== n)
          []T              slice length
          map[K]T          map length (number of defined keys)
          chan T           number of elements queued in channel buffer
          type parameter   see below

cap(s)    [n]T, *[n]T      array length (== n)
          []T              slice capacity
          chan T           channel buffer capacity

    String INDEX_DOCUMENT_CRAWLER_INDEX = "index.document.crawler.index";

    /** The key of the configuration. e.g. 10 */
    String INDEX_DOCUMENT_CRAWLER_QUEUE_number_of_shards = "index.document.crawler.queue.number_of_shards";

    /** The key of the configuration. e.g. 10 */
    String INDEX_DOCUMENT_CRAWLER_DATA_number_of_shards = "index.document.crawler.data.number_of_shards";

Fixed a situation when, sometimes, the scheduler incorrectly placed a pod in the `unschedulable` queue instead of the `backoff` queue. This happened when some plugin previously declared the pod as `unschedulable` and then in a later attempt encounters some other error. Scheduling of that pod then got delayed by up to five minutes, after which periodic flushing moved the pod back into the `active` queue. ([#120334](https://github.com/kubernetes/kubernetes/pull/120334), [@pohly](https://github.com/pohly))...

- Sometimes, the scheduler incorrectly placed a pod in the "unschedulable" queue instead of the "backoff" queue. This happened when some plugin previously declared the pod as "unschedulable" and then in a later attempt encounters some other error. Scheduling of that pod then got delayed by up to five minutes, after which periodic flushing moved the pod back into the "active" queue. ([#120334](https://github.com/kubernetes/kubernetes/pull/120334), [@pohly](https://github.com/pohly))...

        * `{WorkQueueName}_queue_latency`
        * `{WorkQueueName}_work_duration`
        * `{WorkQueueName}_unfinished_work_seconds`
        * `{WorkQueueName}_longest_running_processor_microseconds`
        * `{WorkQueueName}_retries`
    * Please convert to the following metrics:
        * `workqueue_depth`
        * `workqueue_adds_total`
        * `workqueue_queue_latency_seconds`

- Sometimes, the scheduler incorrectly placed a pod in the "unschedulable" queue instead of the "backoff" queue. This happened when some plugin previously declared the pod as "unschedulable" and then in a later attempt encounters some other error. Scheduling of that pod then got delayed by up to five minutes, after which periodic flushing moved the pod back into the "active" queue. ([#120334](https://github.com/kubernetes/kubernetes/pull/120334), [@pohly](https://github.com/pohly))...

- Sometimes, the scheduler incorrectly placed a pod in the "unschedulable" queue instead of the "backoff" queue. This happened when some plugin previously declared the pod as "unschedulable" and then in a later attempt encounters some other error. Scheduling of that pod then got delayed by up to five minutes, after which periodic flushing moved the pod back into the "active" queue. ([#120334](https://github.com/kubernetes/kubernetes/pull/120334), [@pohly](https://github.com/pohly))...

pkg syscall (netbsd-arm64-cgo), const SYS_KILL ideal-int
pkg syscall (netbsd-arm64-cgo), const SYS_KQUEUE1 = 455
pkg syscall (netbsd-arm64-cgo), const SYS_KQUEUE1 ideal-int
pkg syscall (netbsd-arm64-cgo), const SYS_KQUEUE = 344
pkg syscall (netbsd-arm64-cgo), const SYS_KQUEUE ideal-int
pkg syscall (netbsd-arm64-cgo), const SYS_KTRACE = 45
pkg syscall (netbsd-arm64-cgo), const SYS_KTRACE ideal-int