| Subject: | memory leak in XS uniq() on error from overloaded stringize |
| Date: | Fri, 18 Sep 2009 07:10:36 +1000 |
| To: | bug-List-MoreUtils [...] rt.cpan.org |
| From: | Kevin Ryde <user42 [...] zip.com.au> |
With recent debian i386 perl 5.10.0 and List::MoreUtils 0.25_02 the
program foo.pl below consumes ever more memory, where I hoped it would
be a fixed amount.
The memory remains constant if using the pure-perl moreutils (commented
out line at the start).
I suspect the "undef" and hash are not freed if an overloaded stringize
throws an error under hv_exists_ent() and so jumps out across the C code
not giving it a chance to SvREFCNT_dec. Although this is unlikely, I
think it can be addressed easily by having perl's freetmps release those
two vars, per diff below.
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