RHEL7: Deadlock between threads going for shrinker_rwsem rw_semaphore and xfs cil->xc_ctx_lock rw_semaphore

Solution Verified - Updated -

Issue

  • frequent system lockups involving processes doing xfs operations, kswapd, and kworker tasks

Environment

  • Red Hat Enterprise Linux 7
    • seen on 3.10.0-514.*el7
  • xfs

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