Index: head/sys/compat/cloudabi/cloudabi_vdso.c
===================================================================
--- head/sys/compat/cloudabi/cloudabi_vdso.c
+++ head/sys/compat/cloudabi/cloudabi_vdso.c
@@ -59,9 +59,10 @@
 	addr = kva_alloc(PAGE_SIZE);
 	for (i = 0; i < pages; ++i) {
 		VM_OBJECT_WLOCK(obj);
-		m = vm_page_grab(obj, i, VM_ALLOC_NOBUSY | VM_ALLOC_ZERO);
-		m->valid = VM_PAGE_BITS_ALL;
+		m = vm_page_grab(obj, i, VM_ALLOC_ZERO);
 		VM_OBJECT_WUNLOCK(obj);
+		vm_page_valid(m);
+		vm_page_xunbusy(m);
 
 		pmap_qenter(addr, &m, 1);
 		memcpy((void *)addr, begin + i * PAGE_SIZE,
Index: head/sys/compat/linux/linux_vdso.c
===================================================================
--- head/sys/compat/linux/linux_vdso.c
+++ head/sys/compat/linux/linux_vdso.c
@@ -83,9 +83,10 @@
 	obj = vm_pager_allocate(OBJT_PHYS, 0, PAGE_SIZE,
 	    VM_PROT_DEFAULT, 0, NULL);
 	VM_OBJECT_WLOCK(obj);
-	m = vm_page_grab(obj, 0, VM_ALLOC_NOBUSY | VM_ALLOC_ZERO);
-	m->valid = VM_PAGE_BITS_ALL;
+	m = vm_page_grab(obj, 0, VM_ALLOC_ZERO);
 	VM_OBJECT_WUNLOCK(obj);
+	vm_page_valid(m);
+	vm_page_xunbusy(m);
 	addr = kva_alloc(PAGE_SIZE);
 	pmap_qenter(addr, &m, 1);
 	*mapping = (char *)addr;
Index: head/sys/kern/kern_sharedpage.c
===================================================================
--- head/sys/kern/kern_sharedpage.c
+++ head/sys/kern/kern_sharedpage.c
@@ -114,9 +114,10 @@
 	shared_page_obj = vm_pager_allocate(OBJT_PHYS, 0, PAGE_SIZE,
 	    VM_PROT_DEFAULT, 0, NULL);
 	VM_OBJECT_WLOCK(shared_page_obj);
-	m = vm_page_grab(shared_page_obj, 0, VM_ALLOC_NOBUSY | VM_ALLOC_ZERO);
-	m->valid = VM_PAGE_BITS_ALL;
+	m = vm_page_grab(shared_page_obj, 0, VM_ALLOC_ZERO);
 	VM_OBJECT_WUNLOCK(shared_page_obj);
+	vm_page_valid(m);
+	vm_page_xunbusy(m);
 	addr = kva_alloc(PAGE_SIZE);
 	pmap_qenter(addr, &m, 1);
 	shared_page_mapping = (char *)addr;