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Cisco Bug: CSCup71812 - sessmgr Segmentation fault mme_app_remove_pdn_from_pgwlist

Last Modified

Mar 02, 2018

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

17.0.0.55664 17.0.0.55739 17.0.0.55857

Description (partial)

Symptom:
Foll crash will be seen
Fatal Signal 11: Segmentation fault
  PC: [07e68e79/X] mme_app_remove_pdn_from_pgwlist()
  Faulty address: 0xc4d3dd2c
  Signal from: kernel
  Signal detail: address not mapped to object
  Process: card=3 cpu=0 arch=X pid=6767 cpu=~8% argv0=sessmgr
  Crash time: 2014-Jul-03+07:18:32 UTC
  Recent errno: 11 Resource temporarily unavailable
  Stack (68376@0xfffed000):
    [07e68e79/X] mme_app_remove_pdn_from_pgwlist() sp=0xfffedf68
    [07ec0f6a/X] mme_app_destroy_ue_pdn_ctxt_from_pdn_list() sp=0xfffedfb8
    [07ec14b3/X] mme_app_send_del_session_scope_sgw() sp=0xffffa838
    [07f18165/X] mme_app_destroy_ue_ctxt() sp=0xffffce18
    [07f185dd/X] mme_disp_handle_destroy_action_codes() sp=0xffffce58
    [07f478c3/X] mme_disp_timer_callback() sp=0xffffcf48
    [07f1b912/X] mme_fsm_event_handler() sp=0xffffd3f8
    [07f5b091/X] mme_fsm_guard_timer_event_handler() sp=0xffffd4c8
    [05345460/X] tlib_serv() sp=0xffffd518
    [0534510c/X] tlib_tmr_tick() sp=0xffffd568
    [0479d962/X] snx_timer_service() sp=0xffffd578
    [0479b86f/X] snx_fast_service() sp=0xffffd5a8
    [05f6e46a/X] sessmgr_snx_tick_callback() sp=0xffffd5e8
    [0ad426a9/X] sn_loop_run() sp=0xffffda98
    [0aae4d0d/X] main() sp=0xffffdb08

Conditions:
When callmodels are running,introduce S11 path failure by shutting down the port
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