http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59302
--- Comment #1 from Kostya Serebryany <kcc at gcc dot gnu.org> --- This isn't expected to happen and so we did not write a better warning message. We may be able to fix it, but the underlying problem is in your tests: it has a race that tsan is trying to report and which is suppressed (probably because a similar races was reported before). How many race reports do you see before tsan crashes? Did you suppress any of those?
