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Cisco Bug: CSCvu90470 - Fatal Signal 11: Segmentation fault mme_hss_request_fill_data_UPDATE_LOCATION

Last Modified

Oct 13, 2020

Products (1)

  • Cisco MME Mobility Management Entity

Known Affected Releases

21.11.9

Description (partial)

Symptom:
Following sessmgr restart should be investigated:

Fatal Signal 11: Segmentation fault
  PC: [05f53a88/X] mme_hss_request_fill_data_UPDATE_LOCATION()
  Faulty address: (nil)
  Signal from: kernel
  Signal detail: address not mapped to object
  Process: card=12 cpu=0 arch=X pid=33446 cpu=~4% argv0=sessmgr
  time: 2020-Jun-23+03:25:58 UTC
  Recent errno: 11 Resource temporarily unavailable
  Build_number: 73403
  Stack (72136@0x0xffe47000):
    [05f53a88/X] mme_hss_request_fill_data_UPDATE_LOCATION() sp=0xffe477f8
    [05f62ece/X] mme_hss_request_cb_idle_user_req() sp=0xffe47878
    [05f4e111/X] mme_hss_request_run() sp=0xffe47b88
    [05f6c101/X] mme_hss_session_cb_open_user_request() sp=0xffe4d158
    [05f4fd43/X] mme_hss_session_run() sp=0xffe4d568
    [05f5d902/X] mme_hss_update_location_request() sp=0xffe4d5e8
    [08b06ab0/X] mme_app_hss_if_ulr() sp=0xffe50978
    [08b079e3/X] mme_app_hss_if_upd_hss() sp=0xffe50998
    [08b08f73/X] mme_emm_registered_idle_handle_im_exit_trigger() sp=0xffe50a58
    [08b24768/X] mme_fsm_event_handler() sp=0xffe50f18
    [08ba76b0/X] mme_disp_handle_emm_evt() sp=0xffe515b8
    [08bb87a1/X] mme_disp_attached_handle_s1nas_msg() sp=0xffe518b8
    [08b24768/X] mme_fsm_event_handler() sp=0xffe51d78
    [088fe6ec/X] nas_access_recv_init_ue.isra.10() sp=0xffe535a8
    [08905a43/X] nas_access_recv_msg() sp=0xffe53628
    [088ec7b0/X] UzLiSztConInd() sp=0xffe543c8
    [0f19dc97/X] SzUiSztConInd() sp=0xffe543e8
    [0f1a5d57/X] szUiSndConInd() sp=0xffe54458
    [0f19ed04/X] szSmRcvIdleStMsg() sp=0xffe544c8
    [0f188b40/X] szLiCOMsgHandler() sp=0xffe54558
    [0f1898f9/X] szLiRcvFromLower() sp=0xffe547e8
    [0f18be54/X] SzLiSctDatInd() sp=0xffe54948
    [0715b54a/X] sn_ccpu_s1ap_handle_data_ind() sp=0xffe549d8
    [0493a0c9/X] sessmgr_mmemgr_data_ind() sp=0xffe54a88

Conditions:
UE has greater than 4 multiple pdn's and each pdn have active apn config associated.
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