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Cisco Bug: CSCvv90937 - CUPS-UP: sessmgr restart at sess_udp_mtree_lookup

Last Modified

Oct 24, 2020

Products (1)

  • Cisco PGW Packet Data Network Gateway

Known Affected Releases

21.18.13 21.18.7.77000

Description (partial)

CUPS-UP: sessmgr restart at sess_udp_mtree_lookup

Symptom:
Following sessmgr signature seen for CUPS -UP node.

Fatal Signal 11: 11
  PC: [048b3001/X] sess_udp_mtree_lookup()
  Faulty address: 0xf0ce32b4
  Signal from: kernel
  Signal detail: address not mapped to object
  Process: card=1 cpu=0 arch=X pid=30117 cpu=~3% argv0=sessmgr
  Recent errno: 11 Resource temporarily unavailable
  Build_number: 77000
  Stack (9080@0x0xffd89000):
    [048b3001/X] sess_udp_mtree_lookup() sp=0xffd89468
    [04a40549/X] smgr_match_pdr() sp=0xffd89558
    [04a40d70/X] uplane_match_pdr() sp=0xffd89658
    [04850c55/X] uplane_execute_service_chain() sp=0xffd89688
    [04ab26ee/X] uplane_process_packet() sp=0xffd89a28
    [06c17c51/X] sessmgr_uplane_ipv6_process_user_pkt() sp=0xffd8a278
    [04a557f8/X] sessmgr_uplane_handle_inbound_data_packet() sp=0xffd8a338
    [069d9a0c/X] sessmgr_egtpu_receive_gtpu_packet() sp=0xffd8a838
    [06c2f0ee/X] sessmgr_med_proto_processing() sp=0xffd8ad38
    [06c34e6d/X] sessmgr_med_data_process_memif_pri() sp=0xffd8ade8
    [06c354b7/X] sessmgr_med_data_receive_memif() sp=0xffd8adf8
    [0cd8d744/X] sn_epoll_run_events() sp=0xffd8ae48
    [0cd9a34a/X] sn_loop_run() sp=0xffd8b2f8
    [0ca6e1f5/X] main() sp=0xffd8b368
  Last Bounce:

Conditions:
sessmgr crash on 21.18.7_77000 build
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