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Security Gateway / Active cluster member freezes / locks up randomly
Symptoms
  • Security Gateway / Active cluster member freezes / locks up randomly.

  • During the issue, even a console access is not responsive.

  • After rebooting the frozen Security Gateway / cluster member, the /var/log/messages file showed these lines for the time of the issue:

    • kernel: Call Trace:
      kernel: [<...>] :fw_0:h_hash+...
      kernel: [<...>] :fw_0:h_delete+...
      kernel: [<...>] :fw_0:ld_del_ex+...
      kernel: [<...>] :fw_0:ld2_get_wto_ttl_aggr+...
      kernel: [<...>] :fw_0:fwconn_conn6_remove_conn__legacy__+...
      kernel: [<...>] :fw_0:fwconn_del_compound_tree__legacy__+...
      kernel: [<...>] :fw_0:fwh323_cpas_free_func+...
      kernel: [<...>] :fw_0:cpas_end_h+...
      kernel: [<...>] :fw_0:cpas_glue_end_h+...
      kernel: [<...>] :fw_0:fwconn_freefunc+...
      kernel: [<...>] :fw_0:hi_deleted+...
      kernel: [<...>] :fw_0:h_delete_item+...
      kernel: [<...>] :fw_0:h_delete+...
      kernel: [<...>] :fw_0:ld_del_ex+...
      kernel: [<...>] :fw_0:fwconn_ent_eligible_for_del+...
      ... ... ...
    • kernel: Call Trace:
      kernel: [<...>] :fw_0:fwconn_record_conn+...
      kernel: [<...>] :fw_0:nrb_handle_abs_lst_free+...
      kernel: [<...>] :fw_0:b_get+...
      kernel: [<...>] :fw_0:fw_kfunc_record_conn+...
      kernel: [<...>] :fw_0:fw_runfilter_ex+...
      kernel: [<...>] :fw_0:fwconn_chain_get_kbuf_buf+...
      kernel: [<...>] :fw_0:fwx_key_get_client_conn_key+...
      kernel: [<...>] :fw_0:fwx_get_original_conn_key_ex+...
      kernel: [<...>] :fw_0:vm_exec_filter+...
      kernel: [<...>] :fw_0:fw_handle_first_packet+...
      kernel: [<...>] :fw_0:b_get+...
      kernel: [<...>] :fw_0:sd_resolve_attr_value+...
      kernel: [<...>] :fw_0:fw_filter_chain+...
      ... ...
Solution
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