Index: /trunk/source/lib/misc.lisp
===================================================================
--- /trunk/source/lib/misc.lisp	(revision 13580)
+++ /trunk/source/lib/misc.lisp	(revision 13581)
@@ -422,7 +422,9 @@
          (info #>task_events_info))
     (#_task_info (#_mach_task_self) #$TASK_EVENTS_INFO info count)
-    (values (pref info #>task_events_info.cow_faults)
-            (pref info #>task_events_info.faults)
-            (pref info #>task_events_info.pageins)))
+    (let* ((faults (pref info #>task_events_info.faults))
+           (pageins (pref info #>task_events_info.pageins)))
+      (values (- faults pageins)
+              pageins
+              0)))
   #+windows-target
   ;; Um, don't know how to determine this, or anything like it.