RHEL: System paniced with softirq stuck message

Solution In Progress - Updated -


  • we had 16 production serves core dumped last night around the same time.
  • The vmcore shows that the softirq was stuck for 67s.


  • Red Hat Enterprise Linux
    • kernel 2.6.32-431.20.3.el6
  • UDP
  • Multicast
  • 3rd party Infiniband
    • ipoib module

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