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Cisco Bug: CSCum60898 - sessmgr Assertion egtpc_handle_rel_access_bearers_req_evt()

Last Modified

Jan 28, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

14.0(43) 15.0(16)

Description (partial)

Symptom:
******** show version verbose *******
Active Software:
  Image Version:                  14.0 (52795)
  Image Description:              Production_Build
  Image Date:                     Tue Dec 10 01:49:46 EST 2013
  Boot Image:                     /flash/production.14.0.52795.asr5000.bin

Assertion failure at sess/egtp/egtpc/egtpc_evt_handler_func.c:3711
  Note: Event EGTPC_REL_ACCESS_BEARERS_REQ_EVT in bearer state EGTPC_BEARER_STATE_MOD_BEARER_CMD_PENDING not handled yet
  Function: egtpc_handle_rel_access_bearers_req_evt()
  Expression: 0
  Code: CRASH

  Proclet: sessmgr (f=87000,i=134)
  Process: card=11 cpu=0 arch=X pid=5183 cpu=~12% argv0=sessmgr
  Crash time: 2014-Jan-10+09:48:46 UTC
  Recent errno: 11 Resource temporarily unavailable
  Stack (93176@0xfffe7000):
    [f7e285a1/X] libc.so.6/kill() sp=0xfffe7268
    [0a1d3ba7/X] sn_assert() sp=0xfffe7298
    [06d5761e/X] egtpc_handle_rel_access_bearers_req_evt() sp=0xfffe76e8
    [06cf78c0/X] egtpc_handle_user_sap_event() sp=0xfffe7ce8
    [070c6b17/X] mme_app_go_idle_in_a_single_function() sp=0xfffef3b8
    [07082b96/X] mme_emm_registered_conn_handle_im_exit_trigger() sp=0xffff6ab8
    [070529b9/X] mme_fsm_event_handler() sp=0xffff6f18
    [070912c2/X] mme_disp_handle_emm_evt() sp=0xffff7008
    [07097cd8/X] mme_disp_attached_handle_s1nas_msg() sp=0xffff7098
    [070529b9/X] mme_fsm_event_handler() sp=0xffff74f8
    [0704b29e/X] nas_access_recv_init_ue() sp=0xffff8528
    [0704d60f/X] nas_access_recv_msg() sp=0xffff8578
    [070369de/X] UzLiSztConInd() sp=0xffff9138
    [0bdec69f/X] SzUiSztConInd() sp=0xffff9158
    [0bdf2fae/X] szUiSndConInd() sp=0xffff9188
    [0bded726/X] szSmRcvIdleStMsg() sp=0xffff91d8
    [0bdee2fa/X] szSmExcMt() sp=0xffff9208
    [0bddb783/X] szLiCOMsgHandler() sp=0xffff9288
    [0bddb301/X] szLiRcvFromLower() sp=0xffff9478
    [0bdddb31/X] SzLiSctDatInd() sp=0xffff95d8
    [06293c28/X] sn_ccpu_s1ap_handle_data_ind() sp=0xffff9668
    [03eb51e6/X] sessmgr_mmemgr_data_ind() sp=0xffff96c8
    [03eb503c/X] sessmgr_handle_mmemgr_req_bulk_data_ind() sp=0xffffaf68
    [0a26ba2b/X] sn_msg_arriving_handle() sp=0xffffd618

Conditions:
Collision with a NAS Service Request being received on one S1AP connection while a different S1AP connection is active, and at the same time a Modify Bearer Command is pending with the SGW/PGW.
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