diff --git a/sys/arch/i386/i386/pmap.c b/sys/arch/i386/i386/pmap.c
index c43cffab1ac8..12e082121e19 100644
--- a/sys/arch/i386/i386/pmap.c
+++ b/sys/arch/i386/i386/pmap.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: pmap.c,v 1.90 2000/05/19 04:34:40 thorpej Exp $	*/
+/*	$NetBSD: pmap.c,v 1.91 2000/06/02 17:46:37 thorpej Exp $	*/
 
 /*
  *
@@ -3647,6 +3647,7 @@ pmap_growkernel(maxkvaddr)
 
 			if (uvm_page_physget(&ptaddr) == FALSE)
 				panic("pmap_growkernel: out of memory");
+			pmap_zero_page(ptaddr);
 
 			kpm->pm_pdir[PDSLOT_KERN + nkpde] =
 				ptaddr | PG_RW | PG_V;
diff --git a/sys/arch/pc532/pc532/pmap.c b/sys/arch/pc532/pc532/pmap.c
index 325052b281e2..93eb367d0d01 100644
--- a/sys/arch/pc532/pc532/pmap.c
+++ b/sys/arch/pc532/pc532/pmap.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: pmap.c,v 1.49 2000/04/12 06:23:21 matthias Exp $	*/
+/*	$NetBSD: pmap.c,v 1.50 2000/06/02 17:46:45 thorpej Exp $	*/
 
 /*
  *
@@ -3385,6 +3385,7 @@ pmap_growkernel(maxkvaddr)
 
 			if (uvm_page_physget(&ptaddr) == FALSE)
 				panic("pmap_growkernel: out of memory");
+			pmap_zero_page(ptaddr);
 
 			kpm->pm_pdir[PDSLOT_KERN + nkpde] =
 				ptaddr | PG_RW | PG_V;
diff --git a/sys/arch/sh3/sh3/pmap.c b/sys/arch/sh3/sh3/pmap.c
index 736dd7b54375..f7499ef57947 100644
--- a/sys/arch/sh3/sh3/pmap.c
+++ b/sys/arch/sh3/sh3/pmap.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: pmap.c,v 1.7 2000/04/24 08:40:21 tsubai Exp $	*/
+/*	$NetBSD: pmap.c,v 1.8 2000/06/02 17:46:43 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -3337,6 +3337,7 @@ pmap_growkernel(maxkvaddr)
 
 			if (uvm_page_physget(&ptaddr) == FALSE)
 				panic("pmap_growkernel: out of memory");
+			pmap_zero_page(ptaddr);
 
 			kpm->pm_pdir[PDSLOT_KERN + nkpde] =
 				ptaddr | PG_RW | PG_V | PG_N | PG_4K | PG_M;