ruby_gc_stressful 1852 gc.c               if (UNLIKELY(during_gc || ruby_gc_stressful)) {
ruby_gc_stressful 1859 gc.c           	if (ruby_gc_stressful) {
ruby_gc_stressful 1903 gc.c           	  ruby_gc_stressful ||
ruby_gc_stressful 6290 gc.c               if (ruby_gc_stressful) {
ruby_gc_stressful 7664 gc.c               if (ruby_gc_stressful && ruby_native_thread_p()) {
ruby_gc_stressful 8539 gc.c           	record->flags = reason | (ruby_gc_stressful ? GPR_FLAG_STRESS : 0);