rb_thread_raised_p  443 gc.c           	(rb_thread_raised_p(th, RAISED_NOMEMORY) && rb_safe_level() < 4)) {
rb_thread_raised_p  447 gc.c               if (rb_thread_raised_p(th, RAISED_NOMEMORY)) {
rb_thread_raised_p  172 vm_eval.c          if (!rb_thread_raised_p(th, RAISED_STACKOVERFLOW) && ruby_stack_check()) {