As Corion and Podmaster already pointed out, it seems something in the XS code. I'm no XS expert, but I can confirm that commenting out the SvREFCNT_inc(cv) statement solved the problem, as adding a SvREFCNT_dec(cv) at the end of the main loop does. Either way, the List::Util extension builds and executes correctly.
The first() function seems to have the same problem...

Looks like the CPAN RT bug is still open.

In reply to Re: Massive memory leak (AS 810) by cosimo
in thread Massive memory leak (AS 810) by BrowserUk

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