RHEL7: Hard lockup was detected in swapper kernel thread

Solution Unverified - Updated -

Issue

Hard lockup was detected on swapper kernel thread. It caused kernel panic.

  <from vmcore-dmesg.txt>
  [5851047.421170]  [<ffffffff8105166c>] ? start_secondary+0x1fc/0x270
  [18446744073704143752.18446744073709352916] NMI watchdog: Watchdog detected hard LOCKUP on cpu 6

Please note that one of the time stamps if very much off.

Environment

  • Red Hat Enterprise Linux (RHEL) 7
  • kernel

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