I don't know, but I suggest you use valgrind to debug it. Best Regards, Pedro Fortuna INESC Porto On 8/13/06, Hichem AYARI <ayari.hichem at gnet.tn> wrote: > > Hi, > > Did any one know why when trying > God::instance()->IsNeighbor(actualnode->nodeid() , i) > i got a segmentation fault > > Hichem AYARI >