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Cisco Bug: CSCuq53052 - [16.2-MME]:segFault@PC: [07ce1f69/X]:mme_app_mme_dns_rsp_cb

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

16.2.0.56422

Description (partial)

[16.2-MME]:segFault@mme_app_mme_dns_rsp_cb

Symptom:
Fatal Signal 11: Segmentation fault
  PC: [07ce1f69/X] mme_app_mme_dns_rsp_cb()
  Faulty address: 0xda19f06c
  Signal from: kernel
  Signal detail: address not mapped to object
  Process: card=3 cpu=0 arch=X pid=7231 cpu=~54% argv0=sessmgr
  Crash time: 2014-Aug-24+12:05:26 UTC
  Recent errno: 11 Resource temporarily unavailable
  Stack (2840@0xffffd000):
    [07ce1f69/X] mme_app_mme_dns_rsp_cb() sp=0xffffd028
    [08af93e9/X] snaptr_procedure_complete.part.2() sp=0xffffd488
    [08af249d/X] async_return_cbk() sp=0xffffd4c8
    [051b3720/X] tlib_serv() sp=0xffffd518
    [051b3360/X] tlib_tmr_tick() sp=0xffffd568
    [0460d1f2/X] snx_timer_service() sp=0xffffd578
    [0460b0ff/X] snx_fast_service() sp=0xffffd5a8
    [05d9d5da/X] sessmgr_snx_tick_callback() sp=0xffffd5e8
    [0acad3f9/X] sn_loop_run() sp=0xffffda98
    [0aa505fd/X] main() sp=0xffffdb08

Conditions:
When mme-service gets restarted due to change in critical parameter of service, while UE transactions are in progress. For example when the config CLI - [no] statistics collection-mode tai is configured under mme-service, while UE transactions are in progress.
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