Unable to set protectKernelDefaults from "true" to "false" in kubelet.conf on the nodes in RHOCP4.13 although this was possible in RHOCP4.12.

   Red Hat OpenShift Container Platform Version Number: 4
   Release Number: 13
   Kubernetes Version: v1.26.3+b404935
   Docker Version: N/A
   Related Package Version: 
	   - cri-o-1.26.3-3.rhaos4.13.git641290e.el9.x86_64
   Related Middleware/Application: none
   Underlying RHEL Release Number: Red Hat Enterprise Linux CoreOS release 4.13
   Underlying RHEL Architecture: x86_64
   Underlying RHEL Kernel Version: 5.14.0-284.13.1.el9_2.x86_64
   
Drivers or hardware or architecture dependency: none

 always

    1. Deploy OCP cluster using RHCOS
    2. Set protectKernelDefaults as true using the document [1]

protectKernelDefaults can't be set.

 protectKernelDefaults can be set.

protectKernelDefaults in NOT set in kubelet.conf

    ---
    # oc debug node/ocp4-worker1

    # chroot /host

    # cat /etc/kubernetes/kubelet.conf
      ...
      "protectKernelDefaults": true, <- NOT modified. Moreover, the format is changed to json.
      ...
    ---

Also    "protectKernelDefaults: false" does not seem to be set into the machineConfig created by kubeletConfig Kind. See below:

    ---
    # oc get mc 99-worker-generated-kubelet -o yaml
    ...
    storage:
      files:
      - contents:
          compression: "" 
          source: data:text/plain;charset=utf-8;base64, [The contents of kubelet.conf encoded with base64]
        mode: 420
        overwrite: true
        path: /etc/kubernetes/kubelet.conf

    // Write [The contents of kubelet.conf encoded with base64] to the file.
    # vim kubelet.conf 

    // Decode [The contents of kubelet.conf encoded with base64]
    # cat kubelet.conf | base64 -d
    ...
    "protectKernelDefaults": true, <- "protectKernelDefaults: false" is not set.
    ----



[1] https://access.redhat.com/solutions/6974438