--- researchv9/sys/sundev/kbdld.c	2018/04/24 17:21:59	1.1
+++ researchv9/sys/sundev/kbdld.c	2018/04/24 17:30:59	1.1.1.2
@@ -23,6 +23,7 @@ extern int nkeytables;
 extern struct keyboard	*keytables[];
 extern char keystringtab[16][KTAB_STRLEN];
 
+#define	BUSY	02
 #define	TIMEOUT	04
 
 struct	kbdld {
@@ -165,14 +166,25 @@ register struct kbdld *k;
 kbdstart(k)
 register struct kbdld *k;
 {
-	register s;
+	int kbdtocons();
+
+	if (k->cons_q==NULL)
+		return;
+	if ((k->c_state & (BUSY|TIMEOUT|TTSTOP))==0 && k->cons_q->count) {
+		k->c_state |= BUSY;
+		softcall(kbdtocons, (caddr_t)k);
+	}
+}
+
+kbdtocons(k)
+register struct kbdld *k;
+{
 	register struct block *bp;
 	register u_char *cp;
 
 	if (k->cons_q==NULL)
 		return;
-	s = spl1();
-	while ((k->c_state & (TIMEOUT|TTSTOP))==0 && k->cons_q->count) {
+	while ((k->c_state & TTSTOP)==0 && k->cons_q->count) {
 		bp = getq(k->cons_q);
 		switch (bp->type) {
 
@@ -186,17 +198,17 @@ register struct kbdld *k;
 			break;
 
 		case M_DELAY:
-			timeout(kbdtime, (caddr_t)k, (int)*bp->rptr);
 			k->c_state |= TIMEOUT;
+			k->c_state &= ~BUSY;
+			timeout(kbdtime, (caddr_t)k, (int)*bp->rptr);
 			freeb(bp);
-			splx(s);
 			return;
 		default:
 			freeb(bp);
 			break;
 		}
 	}
-	splx(s);
+	k->c_state &= ~BUSY;
 }
 
 kbdldin(q, bp)