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Cisco Bug: CSCup21524 - Crash after switchover with PPPoA load

Last Modified

Apr 18, 2019

Products (17)

  • Cisco IOS
  • Cisco ASR 901-6CZ-F-D Router
  • Cisco ASR 901-4C-FT-D Router
  • Cisco ME 3600X-24TS-M Switch
  • Cisco ASR 901-6CZ-F-A Router
  • Cisco ASR 901-6CZ-FT-A Router
  • Cisco ASR 901-12C-FT-D Router
  • Cisco 7600 Series Route Switch Processor 720 with 10 Gigabit Ethernet Uplinks
  • Cisco 7600 Series Route Switch Processor 720 with Multilayer Switch Feature Card
  • Cisco ME 3600X-24CX-M Switch
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Known Affected Releases

15.3(3)S2

Description (partial)

Symptom: A crash is observed with the following error messages:


Exception to Fastpath Thread:
Frame pointer 0x7FEA1735D570, PC = 0x7FEB1F732559

-Traceback= 1#bb8f9a461a7850b52eefb2d5dc713d87  c:7FEB1F701000+31559 c:7FEB1F701000+32A09 :400000+442C515 :400000+4430C38 iosd_unix:7FEB1FED3000+1B0B6 :400000+6D46665 :400000+7AD419 :400000+2534AFB :400000+4422F8B :400000+70D1E1F :400000+7117396 :400000+71154E6 :400000+6D6801F :400000+6D6787F :400000+4417B48 :400000+441AE07 

IOS Thread backtrace: 
UNIX-EXT-SIGNAL: User defined signal 2(12), Process = SSM connection manager
-Traceback= 1#bb8f9a461a7850b52eefb2d5dc713d87  pthread:7FEB1D279000+83BF 

Auxiliary Thread backtrace: 
-Traceback= 1#bb8f9a461a7850b52eefb2d5dc713d87  pthread:7FEB1D279000+A7C9

Conditions: This symptom occurs after a switchover from the active RP to the standby RP and the device has 1000 PPPoA sessions. Call Admission Control (CAC) is also configured.
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Bug Details Include

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