http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59733
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- It doesn't matter which change triggered it, this looks like libsanitizer internal error, it assumes no internal allocations will need to be large, but apparently some are. So, the question is what is the backtrace for this error.