linux - Error in the systemtap script -

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I'm trying to execute a systemtap script. But during execution I got the following error error 

  stap -v g pass netfilter.stp 1:. Parse user scripts and 96 library script (s) using 150164virt / 25896res / 2100shr / 24504data KB, 230usr / 20sys / 243real warning MS: 26 :: 10 Source: function __get_mac_addr: identifier netfilter.stp '__get_mac_addr': eliding unused function '__get_mac_addr' string (addr: long) {^ Warning: identifier '__get_skb_arphdr' :: 37 unused function eliding '__get_skb_arphdr': 10 source: function __get_skb_arphdr: long (addr: long) ^ Warning: identifier '__ip6_skb_proto' :: 43: 10 Source: function __ip6_skb_proto: unused commencement The eliding '__ip6_skb_proto' long (addr: long) ^ ** means error: An investigation found ** have 2 of the script: 0 Investigation Analysis (s), 0 event (s), 2 Tweet (s), 0 Global (s) / 98268res / 3352shr / 95492data in KB, using 950usr / 250sys / 2047real MS 352168virt. Pass 2: Analyze failed [Man error :: have 2]   
 Please help me on this   
 
 
 It seems that you have a tapeet Trying to run the STP file (which is the library of reusable parts, such as libc), instead of a script which is tested and amp; work to do. See  netfilter_drop.stp  and  netfilter_summary.stp  files for some sample use.

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