https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106949
--- Comment #1 from Anton Fedorov <iam at datacompboy dot ru> --- Dunno, is this related to this point? https://github.com/gcc-mirror/gcc/blob/master/libgcc/generic-morestack.c#L796 /* If we are still on the initial stack, then we have a space leak. FIXME. */