What does "kernel: hpwdt: Unexpected close, not stopping watchdog!" message imply?

Solution Unverified - Updated -

Issue

  • Server got rebooted unexpectedly with following message:
kernel: hpwdt: Unexpected close, not stopping watchdog!

Environment

  • Red Hat Linux Enterprise 6
  • kernel-2.6.32-279.el6.x86_64
  • kernel- 2.6.32-358.23.2.el6.x86_64

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