Systems hang due to leap-second livelock.

Solution Verified - Updated -

Issue

  • Systems repeatedly crash due to NMI Watchdog detecting a hang. There are two similar backtraces that appear to be related to this issue.
  1. The first backtrace appears to be in ktime_get.
  2. The second backtrace appears to be in getnstimeofday.

Environment

  • Red Hat Enterprise Linux 6.1 through 6.3

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