If you do something like:

for(1.. $large_integer) {
  findEAsForGivenRAAndContext($arg1, $arg2, $arg3, \@eaArray);
}
[download]

then @eaArray is going to get bigger and bigger, consuming more and more memory.
I suppose this could perhaps be misinterpreted as a memory leak ... but it's not.

*I* can't see anything else. (But I don't really understand this form of XS code.)

Cheers,
Rob