--- Net2/vm/vm_fault.c	2018/04/24 18:03:57	1.1
+++ Net2/vm/vm_fault.c	2018/04/24 18:09:15	1.1.1.3
@@ -62,6 +62,8 @@
  * rights to redistribute these changes.
  */
 
+static char rcsid[] = "$Header: /var/lib/cvsd/net2/Net2/vm/vm_fault.c,v 1.1.1.3 2018/04/24 18:09:15 root Exp $";
+
 /*
  *	Page fault handling module.
  */
@@ -244,6 +246,7 @@ vm_fault(map, vaddr, fault_type, change_
 
 				PAGE_ASSERT_WAIT(m, !change_wiring);
 				UNLOCK_THINGS;
+thread_wakeup(&vm_pages_needed); /* XXX! -- what does this do? */
 				thread_block();
 				wait_result = current_thread()->wait_result;
 				vm_object_deallocate(first_object);
@@ -253,6 +256,7 @@ vm_fault(map, vaddr, fault_type, change_
 #else
 				PAGE_ASSERT_WAIT(m, !change_wiring);
 				UNLOCK_THINGS;
+thread_wakeup(&vm_pages_needed); /* XXX! */
 				thread_block();
 				vm_object_deallocate(first_object);
 				goto RetryFault;
@@ -276,6 +280,7 @@ vm_fault(map, vaddr, fault_type, change_
 
 				PAGE_ASSERT_WAIT(m, !change_wiring);
 				UNLOCK_THINGS;
+thread_wakeup(&vm_pages_needed); /* XXX! -- what does this do? */
 				thread_block();
 				wait_result = current_thread()->wait_result;
 				vm_object_deallocate(first_object);
@@ -288,6 +293,7 @@ vm_fault(map, vaddr, fault_type, change_
 
 				PAGE_ASSERT_WAIT(m, !change_wiring);
 				UNLOCK_THINGS;
+thread_wakeup(&vm_pages_needed); /* XXX */
 				thread_block();
 				vm_object_deallocate(first_object);
 				goto RetryFault;
@@ -524,7 +530,7 @@ vm_fault(map, vaddr, fault_type, change_
 			 */
 
 			vm_page_lock_queues();
-			vm_page_deactivate(m);
+			vm_page_activate(m);
 			pmap_page_protect(VM_PAGE_TO_PHYS(m), VM_PROT_NONE);
 			vm_page_unlock_queues();
 
@@ -621,6 +627,7 @@ vm_fault(map, vaddr, fault_type, change_
 					copy_object->ref_count--;
 					vm_object_unlock(copy_object);
 					UNLOCK_THINGS;
+thread_wakeup(&vm_pages_needed); /* XXX! -- what does this do? */
 					thread_block();
 					wait_result = current_thread()->wait_result;
 					vm_object_deallocate(first_object);
@@ -637,6 +644,7 @@ vm_fault(map, vaddr, fault_type, change_
 					copy_object->ref_count--;
 					vm_object_unlock(copy_object);
 					UNLOCK_THINGS;
+thread_wakeup(&vm_pages_needed); /* XXX */
 					thread_block();
 					vm_object_deallocate(first_object);
 					goto RetryFault;