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Cisco Bug: CSCun24349 - Sessmgr crashes Assertion failure at sess/smgr/sessmgr_ggsn.c:27011

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

15.0

Description (partial)

Symptom:
Sessmgr crash after upgrade to 15.53496 with following stack trace:

********************* CRASH #01 ***********************
SW Version          : 15.0(53496)
Similar Crash Count : 585
Time of First Crash : 2014-Feb-20+09:08:32

Assertion failure at sess/smgr/sessmgr_ggsn.c:27011
  Function: sessmgr_ggsn_fill_update_ind_trans_info()
  Expression: trans_info->u.update_ind.earp != 0
  Proclet: sessmgr (f=87000,i=186)
  Process: card=10 cpu=0 arch=X pid=19855 cpu=~50% argv0=sessmgr
  Crash time: 2014-Feb-20+04:04:36 UTC
  Recent errno: 11 Resource temporarily unavailable
  Stack (52152@0xffff1000):
    [f7e285a1/X] libc.so.6/kill() sp=0xffff1b08
    [0aa52423/X] sn_assert() sp=0xffff1b38
    [05d2de28/X] sessmgr_ggsn_fill_update_ind_trans_info() sp=0xffff1fa8
    [05d2d4bc/X] sessmgr_ggsn_fill_trans_info() sp=0xffff1fd8
    [05c9445c/X] smgr_fsm_handle_sgsn_initiated_updated_req() sp=0xffff29d8
    [036e3161/X] smgr_fsm_state_connected() sp=0xffff4cf8
    [036dae77/X] smgr_callline_fsm() sp=0xffff4d38
    [05caca73/X] sessmgr_app_svr_event_control_dispatch() sp=0xffff53d8
    [046d73e2/X] snx_pppdrv_event_control_dispatch() sp=0xffff5428
    [07873e44/X] ggsnapp_event_control_dispatch() sp=0xffff5458
    [07892b2f/X] ggsnapp_send_update_ind() sp=0xffff59f8
    [078c321c/X] ggsnapp_fsm_handle_siupc_req() sp=0xffff5a48
    [078db274/X] ggsnapp_tun_fsm_pass_evt_to_pdp_fsm() sp=0xffff5aa8
    [078b2e83/X] ggsnapp_handle_upc_req() sp=0xffff5e38
    [078b1a80/X] ggsnapp_process_gtp_request_msg() sp=0xffff6278
    [07880848/X] ggsnapp_recv_msg() sp=0xffffb3d8
    [05d943d1/X] sessmgr_med_data_receive() sp=0xffffd5d8
    [0aae26c7/X] sn_loop_run() sp=0xffffdb68
    [0a8cbee4/X] main() sp=0xffffdba8

Conditions:
upgrade from 14.0 to 15.0, and earp is enable, then an invalid earp value of  PVI, PL and PCI all are set to zero in CPC or UPC request arrives, we see a crash.
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