diff --git a/sys/pc98/i386/machdep.c b/sys/pc98/i386/machdep.c
index 297061ba3e5..ed46bc2d548 100644
--- a/sys/pc98/i386/machdep.c
+++ b/sys/pc98/i386/machdep.c
@@ -35,7 +35,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)machdep.c	7.4 (Berkeley) 6/3/91
- *	$Id: machdep.c,v 1.34 1997/03/31 11:11:12 davidg Exp $
+ *	$Id: machdep.c,v 1.35 1997/04/07 11:00:45 kato Exp $
  */
 
 #include "npx.h"
@@ -311,6 +311,8 @@ again:
 		if (bouncepages == 0) {
 			bouncepages = 64;
 			bouncepages += ((Maxmem - 4096) / 2048) * 32;
+			if (bouncepages > 128)
+				bouncepages = 128;
 		}
 		v = (caddr_t)((vm_offset_t)round_page(v));
 		valloc(bouncememory, char, bouncepages * PAGE_SIZE);
diff --git a/sys/pc98/pc98/machdep.c b/sys/pc98/pc98/machdep.c
index 297061ba3e5..ed46bc2d548 100644
--- a/sys/pc98/pc98/machdep.c
+++ b/sys/pc98/pc98/machdep.c
@@ -35,7 +35,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)machdep.c	7.4 (Berkeley) 6/3/91
- *	$Id: machdep.c,v 1.34 1997/03/31 11:11:12 davidg Exp $
+ *	$Id: machdep.c,v 1.35 1997/04/07 11:00:45 kato Exp $
  */
 
 #include "npx.h"
@@ -311,6 +311,8 @@ again:
 		if (bouncepages == 0) {
 			bouncepages = 64;
 			bouncepages += ((Maxmem - 4096) / 2048) * 32;
+			if (bouncepages > 128)
+				bouncepages = 128;
 		}
 		v = (caddr_t)((vm_offset_t)round_page(v));
 		valloc(bouncememory, char, bouncepages * PAGE_SIZE);