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Cisco Bug: CSCup22558 - Port channel service crashes after many 'show run' commands

Last Modified

Mar 03, 2020

Products (1)

  • Cisco MDS 9000 Series Multilayer Switches

Known Affected Releases

6.2(11)FM(0.18) 6.2(9)FM(0.75) 6.2(9)S1 6.2(9)S31

Description (partial)

The port-channel service crashes after running for a long time. The following type of syslog messages are logged and a core file is produced.

  %SYSMGR-2-SERVICE_CRASHED: Service "port-channel" (PID 3467) hasn't caught signal 6 (core will be saved).
  %CALLHOME-2-EVENT: SW_CRASH port-channel in slot 7 crashed with crash type : stateful crash

  switch# show cores
  Module  Instance  Process-name     PID       
  ------  --------  ---------------  --------  
  7       1         port-channel     3348

This issue only occurs when port channels are configured. A small memory leak occurs each time a 'show run' command is executed leading to the service crashing after many such commands. The service is automatically restarted nondisruptively.
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