RHEL8.4: ls -l hangs when accessing a z/OS NFS export

Solution Verified - Updated -

Issue

  • Listing contents on a z/OS NFS share hangs indefinitely on RHEL 8.4 when the z/OS rdrverf option is used.
  • The hang is not observed when accessing the same NFS share from the same NFS client on RHEL 8.3 or when the z/OS rdrverf option is not used.

Environment

  • Red Hat Enterprise Linux
    • 8.4
  • NFS
    • v3
    • v4.x
  • NFS server supporting READDIR verifiers
    • z/OS

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