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Cisco Bug: CSCup63080 - [16.1-SGSN]:seg fault@sessmgr_sgsn_pmm_s4_sgsn_egtpc_callback

Last Modified

Dec 26, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

16.1.0.55613 17.0.0.56223 17.1.0.57729 18.0.0.58686

Description (partial)

Symptom:
Fatal Signal 11: Segmentation fault
  PC: [06b7add2/X] sessmgr_sgsn_pmm_s4_sgsn_egtpc_callback()
  Faulty address: 0xb5077a90
  Signal from: kernel
  Signal detail: address not mapped to object
  Process: card=4 cpu=1 arch=X pid=6993 cpu=~9% argv0=sessmgr
  Crash time: 2014-Jun-28+10:27:00 UTC
  Recent errno: 115 Operation now in progress
  Stack (15128@0xffffa000):
    [06b7add2/X] sessmgr_sgsn_pmm_s4_sgsn_egtpc_callback() sp=0xffffad98
    [06cbde1c/X] sessmgr_s4_sgsn_egtpc_callback() sp=0xffffae28
    [077a9695/X] egtpc_tun_abort() sp=0xffffb208
    [077cb105/X] egtpc_cleanup_all_subscriber_sessions() sp=0xffffb258
    [077cb37d/X] egtpc_instance_deinitialize() sp=0xffffb298
    [03d4f3d7/X] sessmgr_stop_egtp_service() sp=0xffffb2e8
    [0356ae04/X] sessmgr_terminate_service() sp=0xffffb348
    [0356c108/X] sessmgr_process_stop_service_req() sp=0xffffb3c8
    [0356c492/X] sessmgr_handle_req_stop_service() sp=0xffffb4f8
    [0ac73c78/X] sn_msg_arriving_handle() sp=0xffffd5e8
    [0ac58da9/X] sn_loop_run() sp=0xffffda98
    [0a9fd31d/X] main() sp=0xffffdb08

Conditions:
After 8hrs of system test run , did the following procedures which results in this crash.
1. demux card migration (planned)
2. task kill npumgr instance ( of demux card)
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