TRACE_SEQ_BUF_LEFT
if (len > TRACE_SEQ_BUF_LEFT(s)) {
if (TRACE_SEQ_BUF_LEFT(s) < 1) {
if (len > TRACE_SEQ_BUF_LEFT(s)) {
if (len * 2 > TRACE_SEQ_BUF_LEFT(s)) {
if (TRACE_SEQ_BUF_LEFT(s) < 1) {
if (TRACE_SEQ_BUF_LEFT(s) < 1) {