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Cisco Bug: CSCus35376 - SM Crash:Assertion failure at sess/mme/mme-app/app/mme_auth_proc.c:3985

Last Modified

Dec 26, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

16.3.1 16.3.2 16.4.0 17.2.0

Description (partial)

Symptom:
Session manager task restarts sometimes with the following assert failure signature

Assertion failure at sess/mme/mme-app/app/mme_auth_proc.c:3985
  Function: mme_start_auth_procedure()
  Expression: ((((mme_ue_enb_ctxt_t*)mpl->mpl_access_src) != ((void *)0)) && (((mme_ue_enb_ctxt_t*)mpl->mpl_access_src)->uec_magic == (('M'<<
  Proclet: sessmgr (f=87000,i=218)
  Process: card=6 cpu=0 arch=X pid=12700 cpu=~21% argv0=sessmgr
  Crash time: 2014-Dec-22+05:22:29 UTC
  Recent errno: 11 Resource temporarily unavailable
  Stack (26568@0xffff7000):
    [ffffe430/X] __kernel_vsyscall() sp=0xffff7558
    [0ac41b2f/X] sn_assert() sp=0xffff7598
    [07cf5099/X] mme_start_auth_procedure() sp=0xffff75f8
    [07bd017a/X] mme_start_procedure() sp=0xffff7698
    [07d2c283/X] mme_attach_req_idle() sp=0xffff77a8
    [07cc6102/X] mme_fsm_event_handler() sp=0xffff7c58
    [07cf4ba1/X] mme_start_attach_procedure() sp=0xffff7ca8
    [07bd017a/X] mme_start_procedure() sp=0xffff7d48
    [07cf6b3e/X] mme_disp_handle_emm_evt() sp=0xffff7e48
    [07cfe133/X] mme_disp_attached_handle_s1nas_msg() sp=0xffff7ef8
    [07cc6102/X] mme_fsm_event_handler() sp=0xffff83a8
    [07bb4cde/X] nas_access_recv_uplink_tpt.isra.5() sp=0xffff90a8
    [07bb9a68/X] nas_access_recv_msg() sp=0xffff9108
    [07ba45c0/X] UzLiSztDatInd() sp=0xffff91d8
    [0cb65ca7/X] SzUiSztDatInd() sp=0xffff91f8
    [0cb6da03/X] szUiSndDatInd() sp=0xffff9258
    [0cb66e7f/X] szSmRcvEstStMsg() sp=0xffff92e8
    [0cb518fa/X] szLiCOMsgHandler() sp=0xffff9368
    [0cb524fc/X] szLiRcvFromLower() sp=0xffff95f8
    [0cb549da/X] SzLiSctDatInd() sp=0xffff9758
    [069d2686/X] sn_ccpu_s1ap_handle_data_ind() sp=0xffff97e8
    [041078b7/X] sessmgr_mmemgr_data_ind() sp=0xffff9888
    [04107fe4/X] sessmgr_handle_mmemgr_req_bulk_data_ind.part.12() sp=0xffffb168
    [041083de/X] sessmgr_handle_mmemgr_req_bulk_data_ind() sp=0xffffb1a8

Conditions:
When Attach Complete is received from UE  while S1 Handover procedure is in progress at MME.
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