Delayed NFS4 RENEW Reply leads to expired NFS4 lease and triggers NFS4 state recovery

Issue

• I see errors in /var/log/messages indicating the NFS 4 client has entered NFS4 state recovery, for example
  • "nfs4_reclaim_open_state: Lock reclaim failed!"
• A tcpdump shows a RENEW Reply that takes longer than 1/3 of the NFS4 lease time, and tcpdump shows NFS4ERR_EXPIRED responses to RENEW requests.