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Cisco Bug: CSCuj32887 - Assertion failure at sess/sgsn/sgsn-app/pmm/pmm_fsm.c:6431

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

14.0(1)

Description (partial)

Doesn't translate to tangible external behavior change

Symptom:
The task "session manager" restarts to recover from an unexpected event handling in MM FSM with the following signature

Assertion failure at sess/sgsn/sgsn-app/pmm/pmm_fsm.c:6431
  Note: Invalid/unhandled event PMM_EVT_T3313 in state PMM_APP_ST_INTER_RAT_ONGOING_IN_2G
  Function: pmm_ms_fsm_invalid_event_handler()

Conditions:
This behavior is seen during the following scenario:-
1. Ms does succesful 3G attach and activate
2. Old SRNS procedure, proceed till relocation command
3. DPCQ from GGSN 
6. IRAT to 2G.
-After 2G rau request SGSN send Iu release command and 3G paging request, if we did not response of that paging then it is retrying and after Page Timer Expired, this restart of sessmgr is seen
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