一台Linux服务器的系统错误日志出现大量的“ kernel: NET: Registered protocol family 36”错误信息，如下所示：
Jul 2 05:27:45 xxxxxx kernel: NET: Registered protocol family 36
Jul 2 05:27:45 xxxxxx kernel: NET: Unregistered protocol family 36
Jul 2 05:28:29 xxxxxx kernel: NET: Registered protocol family 36
Jul 2 05:28:29 xxxxxx kernel: NET: Unregistered protocol family 36
Jul 2 05:29:10 xxxxxx kernel: NET: Registered protocol family 36
Jul 2 05:29:10 xxxxxx kernel: NET: Unregistered protocol family 36
Jul 2 05:30:02 xxxxxx kernel: NET: Registered protocol family 36
Jul 2 05:30:02 xxxxxx kernel: NET: Unregistered protocol family 36