I modified the UM-OLSR protocol to add some security elements. it works fine 
until the number nodes crosses 20. with more nodes i am getting a segmentation 

can anybody help me , why segmentation fault may occur? help with some causes 
and remedies.  how can i debug it? i think the memory is not overloaded, as 
OLSR runs with more than 50/100 nodes. 
thanks in advance.



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