perlquestion edan I am trying to call a perl subroutine from C, passing it an array ref. I am not managing to do this correctly without leaking memory. Can someone please tell me why? <p/> If I mortalize the "AV" (commented line below), I get "Attempt to free unreferenced scalar". But If I don't, I'm leaking memory, as evidenced by [cpan://Devel::Leak] (though for some reason it isn't telling me that the AV is left around, rather the SV containing the name of the subroutine being called, "MyModule::test" in the below code - weird). It seems like I should be mortalizing it, but I can't figure out why it's getting "over-decremented" when I do. <p/> <code> dSP; ENTER; SAVETMPS; PUSHMARK(SP); AV *arr = newAV(); // AV *arr = (AV *) sv_2mortal((SV *) newAV()); av_push( arr, sv_2mortal(newSVpv("test", 0))); XPUSHs(sv_2mortal(newRV((SV *)arr))); PUTBACK; call_sv(sv_2mortal(newSVpv("MyModule::subroutine", 0)), G_SCALAR); SPAGAIN; SV *retval = POPs; PUTBACK; FREETMPS; LEAVE; </code> <p/> Can someone help clear this up for me, please? <p/> <b>Update:</b> I have tinkered some more, and found a formula that seems to work, but I don't understand why. The following sub-snippet appears to work: <p/> <code> AV *arr = (AV *) sv_2mortal((SV *) newAV()); av_push( arr, newSVpv("test", 0)); </code> <p/> So I'm not supposed to mortalize the scalars that I push onto the array? Why is that? It makes my problem disappear, which I like, but I don't understand it, which I don't like. Any further thoughts are appreciated. <p/> <div class="pmsig"><div class="pmsig-236234"> --<br />[edan]<br /><br /> </div></div>