Gentoo's Bugzilla –
Attachment 352422 Details for
Bug 475454>=dev-lang/perl-5.16 causes module Carp.pm to crash, when started from Pidgin with Perl plugin support. - #0 0x00007fffe5368a25 in Perl__invlist_union_maybe_complement_2nd () from /usr/lib64/libperl.so.5.16