# New Ticket Created by Zoffix Znet # Please include the string: [perl #132326] # in the subject line of all future correspondence about this issue. # <URL: https://rt.perl.org/Ticket/Display.html?id=132326 >
Today we had to revert an `is default` use in Promise.pm: https://github.com/rakudo/rakudo/commit/d20e972a12 The commit caused a reproducible hang in S17-promise/lock-async-stress.t and S17-promise/lock-async-stress2.t tests while running stresstests, although when running the test files on their own, they passed (each takes ~50s to run) It's possible there's some issue in `is default` that occurs under stress. IRC: https://irclog.perlgeek.de/perl6-dev/2017-10-20#i_15330009
