RHEL7: NFSv4 client loops with WRITE / NFS4ERR_STALE_STATEID - if NFS server restarts multiple times within the grace period

Solution Verified - Updated -


  • NFS client can't execute open/write systemcall against NFS filesystem after NFS service restart
  • While NFS client is repeatedly executing I/O sequence (open/write/read/close) against a file that exists on the NFS filesystem, NFS server restart.
    • When executing open systemcall, EIO error occurs, and when executing write systemcall, EAGAIN error occurs
    • We must restart NFS client machine to recover
  • NFS4 server restarts multiple times within the grace period results in NFS client hangs
  • If NFS server restarts at interval longer than the NFS4 grace period, this problem does not occur


  • Red Hat Enterprise 7 (NFS client)
    • kernel prior to 3.10.0-229.11.1.el7
    • seen on kernels 3.10.0-123.el7 and 3.10.0-229.el7
  • NFS4
  • NFS server
    • Seen with RHEL6u6 kernel-2.6.32-504.el6, nfs-utils-1.2.3-54.el6

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