Sample fail report: http://www.cpantesters.org/cpan/report/a5e741b8-968b-11e1-8755-e63c2a028b78
I just reproduced this result on a dozen bleadperls on linux.
Cross ref https://rt.perl.org:443/rt3/Ticket/Display.html?id=112780
Thanks for the report.
I'm going to hope that's a bleadperl regression and that it gets fixed. Because I'll cry if I have to find another way to make filehandles work with threads.
5.16.0 works, so I guess they fixed it.