NFS4 client can hang indefinitely with RENEW / NFS4ERR_EXPIRED loop when NFS server responses are delayed long enough to expire the lease or dropped silently
Issue
An NFS4 client hangs with a repeated pattern of RENEW / NFS4ERR_EXPIRED coming back but no other intervening operations
Environment
- Red Hat Enterprise Linux 7 (NFS4 client)
- NFSv4
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