Hangs occur if a Red Hat Enterprise Linux system is used as both NFS server and NFS client for the same mount

Solution Verified - Updated -

Issue

  • Mounting an NFS share over loopback (i.e. the system is both the NFS server and the NFS client for the same mount) can result in a deadlock when the system is under memory pressure.

Environment

  • Red Hat Enterprise Linux 4, 5, 6, 7
  • NFS server and client on same server for the same mount

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