diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 66148cc..40d05c5 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -1171,6 +1171,7 @@ static void htb_qlen_notify(struct Qdisc *sch, unsigned long arg)
 {
 	struct htb_class *cl = (struct htb_class *)arg;
 
+	printk("htb_qlen_notify classid=%x\n", cl->classid);
 	if (cl->un.leaf.q->q.qlen == 0)
 		htb_deactivate(qdisc_priv(sch), cl);
 }