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Cisco Bug: CSCvu97116 - [BP-CUPS]sessmgr crash-sessmgr_match_static_predef_group() on data pkt.

Last Modified

Oct 23, 2020

Products (1)

  • Cisco PGW Packet Data Network Gateway

Known Affected Releases

21.19.n4 21.19.n4.77284 21.19.n5.77876 21.20.N1.76524 21.21.G0.76937 21.21.G0.77268 21.22.G0.77694 21.22.G0.77886 21.22.G0.77919

Description (partial)

********************* FAILURE #01 ***********************
SW Version          : 21.18.11
Similar Crash Count : 2
Time of First Crash : 2020-Sep-16+08:25:01

Fatal Signal 11: 11
  PC: [04851369/X] sessmgr_match_static_predef_group()
  Faulty address: 0x98
  Signal from: kernel
  Signal detail: address not mapped to object
  Process: card=1 cpu=0 arch=X pid=29978 cpu=~39% argv0=sessmgr
  Crash time: 2020-Sep-16+08:25:10 UTC
  Recent errno: 11 Resource temporarily unavailable
  Build_number: 77427
  Stack (10520@0x0xffc79000):
    [04851369/X] sessmgr_match_static_predef_group() sp=0xffc79a28
    [04a14e9b/X] smgr_match_pdr() sp=0xffc79b18
    [04a15b4f/X] uplane_match_pdr() sp=0xffc79c18
    [048257f5/X] uplane_execute_service_chain() sp=0xffc79c48
    [04a875c6/X] uplane_process_packet() sp=0xffc79fe8
    [06bec931/X] sessmgr_uplane_ipv6_process_user_pkt() sp=0xffc7a838
    [04a2a5c8/X] sessmgr_uplane_handle_inbound_data_packet() sp=0xffc7a8f8
    [069ae9d2/X] sessmgr_egtpu_receive_gtpu_packet() sp=0xffc7ade8
    [06c03ce5/X] sessmgr_med_proto_processing() sp=0xffc7b2e8
    [06c09b4d/X] sessmgr_med_data_process_memif_pri() sp=0xffc7b388
    [06c0a187/X] sessmgr_med_data_receive_memif() sp=0xffc7b398
    [0cd65444/X] sn_epoll_run_events() sp=0xffc7b3e8
    [0cd7204a/X] sn_loop_run() sp=0xffc7b898
    [0ca45ef5/X] main() sp=0xffc7b908

Observation- This problem is seen when we do sx association release /up , two three times. if i do it one time and send data, issue is not seen.
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