tf_dlar
s->tf_dsap, s->tf_duap, s->tf_dsr, s->tf_dlar, s->tf_dpar);
f->tf_dsap, f->tf_duap, f->tf_dsr, f->tf_dlar, f->tf_dpar);
frame->tf_exip, frame->tf_dsr, frame->tf_dlar);
fault_addr = frame->tf_dlar;
fault_addr = frame->tf_dlar;
frame->tf_exip, frame->tf_dsr, frame->tf_dlar);