> Source: [sk114977](https://support.checkpoint.com/results/sk/sk114977)

# sk114977 - Security Gateway / Active cluster member freezes / locks up randomly

| Property | Value |
|----------|-------|
| Solution ID | sk114977 |
| Date Created | 2017-01-02 |
| Last Modified | 2018-10-02 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |

## 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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