For the curious, here is the leaky code fixed with WeakRef: 
use strict;
use WeakRef;

while(1) {
  &leak();
}

sub leak {
  my $sub_ref;
  $sub_ref = sub { &$sub_ref(); };
  weaken($sub_ref);                 # <- This fixes the leak
  return 0;
}

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In reply to Re: Re: Memory leak on definition of anonymous code? by tilly
in thread Memory leak on definition of anonymous code? by octothorpe

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