https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92836
--- Comment #16 from Thomas Koenig <tkoenig at gcc dot gnu.org> --- (In reply to Jerry DeLisle from comment #15) > Did we conclude that this is an expected race condition? > > I run the example comment 14 and it just hangs for me. It's certainly not mandated to work, but I think that, as a quality of implementation issue, it should not hang or crash.