commit a1a486d70ebcc47a686ff5846875eacad0940e41 Author: Eyal Itkin <eyalit@checkpoint.com> Date: Fri Mar 20 21:19:17 2020 +0200 Add Safe-Linking to fastbins and tcache breaks GCC coroutines: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96504
It is a GCC bug.