* try to only update vm if detach a non-existing disk when got <200, error> after detach disk operation
* kubeadm: fix a regression related to taints not being applied from JoinConfiguration ([#79107](https://github.com/kubernetes/kubernetes/pull/79107), [@joerocklin](https://github.com/joerocklin))

	md5sumCurr := p.rawReader.MD5Current()
	var appendHyphen bool
	// md5sumcurr is not empty in two scenarios
	// - server is running in strict compatibility mode
	// - client set Content-Md5 during PUT operation
	if len(md5sumCurr) == 0 {
		// md5sumCurr is only empty when we are running
		// in non-compatibility mode.
		md5sumCurr = make([]byte, 16)
		rand.Read(md5sumCurr)
		appendHyphen = true
	}

* Updates Cinder AttachDisk operation to be more reliable by delegating Detaches to volume manager. ([#50042](https://github.com/kubernetes/kubernetes/pull/50042), [@jingxu97](https://github.com/jingxu97))

protobuf you will be forced to restore from backup, and you will lose any changes
since you converted to protobuf.  After conversion to protobuf, you should
validate the correct operation of your cluster thoroughly before returning it
to normal operation.

Backups are always a good precaution, particularly around upgrades, but this
upgrade has multiple known issues where the only remedy is to restore from
backup.

        CIFSContext deleteContext = createFreshContext();
        SmbFile fileToDelete = new SmbFile(baseUrl + "shared/" + filename, deleteContext);

        // Retry logic for delete operation
        boolean deleted = false;
        for (int i = 0; i < 3 && !deleted; i++) {
            try {
                fileToDelete.delete();
                deleted = true;
            } catch (SmbException e) {

	volume := r.Form.Get(storageRESTVolume)
	err := s.getStorage().MakeVol(r.Context(), volume)
	if err != nil {
		s.writeErrorResponse(w, err)
	}
}

// MakeVolBulkHandler - create multiple volumes as a bulk operation.
func (s *storageRESTServer) MakeVolBulkHandler(w http.ResponseWriter, r *http.Request) {
	if !s.IsValid(w, r) {
		return
	}
	volumes := strings.Split(r.Form.Get(storageRESTVolumes), ",")

resource-intensive in ‘iptables’ mode.
  * Node stability can be improved by reserving [resources](https://github.com/kubernetes/kubernetes/blob/release-1.2/docs/proposals/node-allocatable.md) for the base operating system using --system-reserved and --kube-reserved Kubelet flags
  * Liveness and readiness probes now support more configuration parameters:
periodSeconds, successThreshold, failureThreshold

    * try to only update vm if detach a non-existing disk when got <200, error> after detach disk operation
* fix pod stuck issue due to corrupt mnt point in flexvol plugin, call Unmount if PathExists returns any error ([#75234](https://github.com/kubernetes/kubernetes/pull/75234), [@andyzhangx](https://github.com/andyzhangx))

    assertThat(cache["a"]).isNull()
  }

  /**
   * We had a long-lived bug where [DiskLruCache.trimToSize] could infinite loop if entries
   * being edited required deletion for the operation to complete.
   */
  @Test
  fun trimToSizeWithActiveEdit() {
    val expectedByteCount = if (windows) 10L else 0L
    val afterRemoveFileContents = if (windows) "a1234" else null

and instruction selection occurs partly after code generation.
The assembler works on the semi-abstract form, so
when you see an instruction like <code>MOV</code>
what the toolchain actually generates for that operation might
not be a move instruction at all, perhaps a clear or load.
Or it might correspond exactly to the machine instruction with that name.