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Cisco Bug: CSCtd94318 - MCS-7845-I3 server locks up after IMM is restarted

Last Modified

Jan 29, 2017

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases

7.1(3.21004.1)

Description (partial)

Symptom:

CUCM Server becomes unresponsive after restarting the IMM module.

Conditions:

MCS-7845-I3 type servers  if the module is restarted while the OS is operational on rare occurrence,the server will become unresponsive. It has been observed under this condition existing SSH sessions may remain connected for a period of time however no new connections will be made. CPU will be spiking to 100% where khubd or kipmi0 processes will be the top CPU consumers. The only way to recover a server in this unresponsive condition is to reboot the server which can be done via IMM.
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