Description of problem:

machine config daemon pods cordon node but it does not start un-cordon process

  Issue is not observed in master and infra type of nodes 

Tried keeping "maxUnavailable: 1" on worker mcp but results are same.

We had suggested workaround :

• pause worker mcp

~~~

 oc patch mcp worker  --type=merge -p '{"spec":{"paused":true }}'

~~~

• perform version upgrade to 4.7 from stable release (wait till all operators are upgraded)

• check recently rendered worker and chance node annotation "machineconfiguration.openshift.io/desiredConfig" manually

 - unpause worker mcp 

• re-pause worker mcp (repeat process till the final worker node is updated)

  >> in this case, when worker mcp is un-paused three worker marked for drain 

Version-Release number of selected component (if applicable):

issue appeared in version upgrade 

How reproducible:

everytime 

Steps to Reproduce:

1.
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Actual results:

Expected results:

Additional info: