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Cisco Bug: CSCvs21696 - Segmentation fault while handling packet matching ruledef

Last Modified

Jan 21, 2020

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

21.12.9.72306

Description (partial)

Symptom:
Sessmgr restart due to Segmentation fault with similar stack:
<div style="font-family:monospace;background-color: #f5f5f5;border-radius: 4px;padding: 6px;">Fatal Signal 11: Segmentation fault
  PC: [f692dfa0/X] libc.so.6/__memcmp_sse4_2()
  Faulty address: 0x80000003
  Signal from: kernel
  Signal detail: address not mapped to object
  Process: card=2 cpu=1 arch=X pid=10001 cpu=~29% argv0=sessmgr
  Crash time: 2019-Nov-16+21:25:13 UTC
  Recent errno: 11 Resource temporarily unavailable
  Build_number: 72306
  Stack (14648@0x0xffb58000):
    [f692dfa0/X] libc.so.6/__memcmp_sse4_2() sp=0xffb58fc8
    [0933927f/X] check_ruledef_for_hash_opt_match() sp=0xffb59028
    [09339b7b/X] actsm_search_p2p_app_identifier() sp=0xffb59088
    [09339d0c/X] acs_aho_corasick_match() sp=0xffb590c8
    [096db06f/X] acsmgr_match_rule() sp=0xffb591e8
    [09755c24/X] acsmgr_trm_match_rule() sp=0xffb592e8
    [099181ac/X] acsmgr_process_tcp_packet() sp=0xffb59818
    [0991e810/X] acs_process_tcp_packet_normal_path() sp=0xffb59868
    [0991e9af/X] acs_tcp_analyzer() sp=0xffb598e8
    [09852354/X] do_acsmgr_process_packet() sp=0xffb599e8
    [0986332e/X] acs_ip_lean_path() sp=0xffb59a68
    [0975b149/X] acsmgr_data_receive_merge_mode() sp=0xffb59f38
    [0975ee56/X] acs_handle_datapath_events_from_sm_interface() sp=0xffb59f68
    [0395397d/X] sessmgr_sef_initiate_data_packet_ind() sp=0xffb5a0c8
    [03953b01/X] sessmgr_pcc_intf_send_data_packet_ind() sp=0xffb5a168
    [0653aefe/X] sessmgr_pcc_fwd_packet() sp=0xffb5a1d8
    [065f6043/X] sessmgr_ipv4_process_user_pkt_pgw_ggsn.isra.290() sp=0xffb5a7d8
    [049c6b5f/X] sessmgr_ggsndrv_handle_inbound_data_packet() sp=0xffb5a9b8
    [064ec3c7/X] sessmgr_egtpu_receive_gtpu_packet() sp=0xffb5ae48
    [067174d8/X] sessmgr_med_proto_processing() sp=0xffb5b338
    [0671d683/X] sessmgr_med_data_receive() sp=0xffb5b3b8
    [0cb6efb4/X] sn_epoll_run_events() sp=0xffb5b408
    [0cb7baaa/X] sn_loop_run() sp=0xffb5b8b8
    [0c86eef5/X] main() sp=0xffb5b928
  Last Bounce:</div>

Conditions:
NA
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