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+...
... ...