BUG: soft lockup in nfs_iocounter_wait - CPU#0 stuck for 68s! while trying to unlock files on a NFS mountpoint

Solution Verified - Updated -

Issue

  • `BUG: soft lockup - CPU#0 stuck for 68s! while trying to unlock files on a NFS mountpoint in Red Hat Enterprise Linux 6.5
  • soft lockup unlocking an NFS file in nfs_iocounter_wait

Environment

  • Red Hat Enterprise Linux 6 (NFS client)

    • kernels prior to kernel-2.6.32-504.el6 and kernel-2.6.32-431.40.1.el6
  • Red Hat Enterprise Linux 7 (NFS client)

    • kernels prior to kernel-3.10.0-229.el6
  • NFS (both NFSv3 and NFSv4 are affected)

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