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Cisco Bug: CSCum74670 - ASR5K 15.0.52633 - sessmgr Assertion mme_send_s1_ue_release().

Last Modified

Jan 30, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

15.0(16)

Description (partial)

Symptom:
******** show crash list *******
Tuesday January 21 16:43:34 EST 2014
==         ====         =======  ========== =========== ================
#          Time         Process   Card/CPU/     SW         HW_SER_NUM
                                     PID      VERSION   SMC / Crash Card
==         ====         =======  ========== =========== ================
1  2014-Jan-20+19:26:57 sessmgr  03/0/20715 14.0(51469) SAD151701GD/SAD151903ND
2  2014-Jan-20+18:19:52 sessmgr  02/0/04389 14.0(51469) SAD151701GD/SAD1516024K
3  2014-Jan-20+18:07:16 sessmgr  03/0/26695 14.0(51469) SAD151701GD/SAD151903ND
4  2014-Jan-21+00:39:09 sessmgr  03/0/05060 15.0(52633) SAD151701GD/SAD151903ND
5  2014-Jan-21+16:40:20 sessmgr  03/0/04969 15.0(52633) SAD151701GD/SAD151903ND
6  2014-Jan-21+16:29:26 sessmgr  03/0/02611 15.0(52633) SAD151701GD/SAD151903ND
7  2014-Jan-21+10:53:28 sessmgr  02/0/04800 15.0(52633) SAD151701GD/SAD1516024K
********************* CRASH #07 ***********************
SW Version          : 15.0(52633)
Similar Crash Count : 1
Time of First Crash : 2014-Jan-21+10:53:28
Assertion failure at sess/mme/mme-app/app/mme_msg_utils.c:4683
  Function: mme_send_s1_ue_release()
  Expression: (((ue_enb_ctxt) != ((void *)0)) && ((ue_enb_ctxt)->uec_magic == (('M'<<24)|('U'<<16)|('E'<<8)|('C'))))
  Proclet: sessmgr (f=87000,i=3)
  Process: card=2 cpu=0 arch=X pid=4800 cpu=~6% argv0=sessmgr
  Crash time: 2014-Jan-21+15:53:28 UTC
  Recent errno: 11 Resource temporarily unavailable
  Stack (68568@0xfffed000):
    [f7e285a1/X] libc.so.6/kill() sp=0xfffedca8
    [0a9cfcf3/X] sn_assert() sp=0xfffedcd8
    [076a3665/X] mme_send_s1_ue_release() sp=0xfffee778
    [077584c1/X] mme_s1_ho_mod_brrs_finished_with_success() sp=0xffff7588
    [0775a8b8/X] mme_abort_s1_ho_procedure() sp=0xffff7a18
    [0769339e/X] mme_abort_procedure() sp=0xffff7a58
    [076d2cba/X] mme_disp_handle_emm_evt() sp=0xffff7b38
    [076d902c/X] mme_disp_attached_handle_s1nas_msg() sp=0xffff7bc8
    [07692709/X] mme_fsm_event_handler() sp=0xffff8028
    [0768d6b3/X] s1_access_recv_msg() sp=0xffff8c38
    [0767985e/X] UzLiSztDatInd() sp=0xffff90f8
    [0c63cdef/X] SzUiSztDatInd() sp=0xffff9118
    [0c643a06/X] szUiSndDatInd() sp=0xffff9148
    [0c63e0c2/X] szSmRcvEstStMsg() sp=0xffff91b8
    [0c63e8fa/X] szSmExcMt() sp=0xffff91e8
    [0c62c163/X] szLiCOMsgHandler() sp=0xffff9268
   [0c62bcd1/X] szLiRcvFromLower() sp=0xffff9458
    [0c62e566/X] SzLiSctDatInd() sp=0xffff95b8
    [0673728e/X] sn_ccpu_s1ap_handle_data_ind() sp=0xffff9648
    [042384e6/X] sessmgr_mmemgr_data_ind() sp=0xffff96a8
    [04238346/X] sessmgr_handle_mmemgr_req_bulk_data_ind() sp=0xffffaf48
    [0aa81a8b/X] sn_msg_arriving_handle() sp=0xffffd5f8
    [0aa5f495/X] sn_loop_run() sp=0xffffdb88
    [0a8497b4/X] main() sp=0xffffdbc8

Conditions:
Crash seen after upgrade from 14.0 to 15.0.52633 build.
Issue with collision between S1 Handover procedure and UE Context Release Request from the target eNodeB while waiting for the an S11 Delete Indirect Data Forwarding Tunnel Request.
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