--- p4_head/sys/pc98/cbus/clock.c	Sun Jan 21 15:20:29 2007
+++ p4_head_intr/sys/pc98/cbus/clock.c	Fri Jan 26 13:54:09 2007
@@ -139,7 +139,7 @@
 	0			/* quality */
 };
 
-static void
+static int
 clkintr(struct trapframe *frame)
 {
 
@@ -156,6 +156,7 @@
 	}
 	KASSERT(!using_lapic_timer, ("clk interrupt enabled with lapic timer"));
 	hardclock(TRAPF_USERMODE(frame), TRAPF_PC(frame));
+	return (FILTER_HANDLED);
 }
 
 int
@@ -703,8 +704,8 @@
 	 * timecounter to user a simpler algorithm.
 	 */
 	if (!using_lapic_timer) {
-		intr_add_handler("clk", 0, (driver_intr_t *)clkintr, NULL,
-		    INTR_TYPE_CLK | INTR_FAST, NULL);
+		intr_add_handler("clk", 0, (driver_filter_t *)clkintr, NULL,
+		    NULL, INTR_TYPE_CLK | INTR_FAST, NULL);
 		i8254_intsrc = intr_lookup_source(0);
 		if (i8254_intsrc != NULL)
 			i8254_pending =
--- p4_head/sys/pc98/cbus/fdc.c	Sun Jan 21 15:20:29 2007
+++ p4_head_intr/sys/pc98/cbus/fdc.c	Fri Jan 26 13:54:09 2007
@@ -822,7 +822,7 @@
 	fdc = device_get_softc(dev);
 	fdc->fdc_dev = dev;
 	error = bus_setup_intr(dev, fdc->res_irq,
-			       INTR_TYPE_BIO | INTR_ENTROPY, fdc_intr, fdc,
+			       INTR_TYPE_BIO | INTR_ENTROPY, NULL, fdc_intr, fdc,
 			       &fdc->fdc_intr);
 	if (error) {
 		device_printf(dev, "cannot setup interrupt\n");
--- p4_head/sys/pc98/cbus/pckbd.c	Sun Jan 21 15:20:30 2007
+++ p4_head_intr/sys/pc98/cbus/pckbd.c	Fri Jan 26 13:54:09 2007
@@ -137,7 +137,7 @@
 	res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
 	if (res == NULL)
 		return ENXIO;
-	bus_setup_intr(dev, res, INTR_TYPE_TTY, pckbd_isa_intr, kbd, &ih);
+	bus_setup_intr(dev, res, INTR_TYPE_TTY, NULL, pckbd_isa_intr, kbd, &ih);
 
 	return 0;
 }
--- p4_head/sys/pc98/cbus/sio.c	Sun Jan 21 15:20:30 2007
+++ p4_head_intr/sys/pc98/cbus/sio.c	Fri Jan 26 13:54:09 2007
@@ -350,7 +350,7 @@
 static	int	comopen(struct tty *tp, struct cdev *dev);
 static	void	sioinput(struct com_s *com);
 static	void	siointr1(struct com_s *com);
-static	void	siointr(void *arg);
+static	int	siointr(void *arg);
 static	int	commodem(struct tty *tp, int sigon, int sigoff);
 static	int	comparam(struct tty *tp, struct termios *t);
 static	void	siopoll(void *);
@@ -1739,12 +1739,13 @@
 	com->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
 	if (com->irqres) {
 		ret = bus_setup_intr(dev, com->irqres,
-				     INTR_TYPE_TTY | INTR_FAST,
-				     siointr, com, &com->cookie);
+				     INTR_TYPE_TTY,
+				     siointr, NULL, com, &com->cookie);
 		if (ret) {
 			ret = bus_setup_intr(dev,
 					     com->irqres, INTR_TYPE_TTY,
-					     siointr, com, &com->cookie);
+					     NULL, (driver_intr_t *)siointr, 
+					     com, &com->cookie);
 			if (ret == 0)
 				device_printf(dev, "unable to activate interrupt in fast mode - using normal mode\n");
 		}
@@ -2155,7 +2156,7 @@
 #endif
 }
 
-static void
+static int
 siointr(arg)
 	void		*arg;
 {
@@ -2221,6 +2222,7 @@
 	} while (possibly_more_intrs);
 	mtx_unlock_spin(&sio_lock);
 #endif /* COM_MULTIPORT */
+	return (FILTER_HANDLED);
 }
 
 static struct timespec siots[8];