--- 2.6/mm/slab.c	2003-11-18 18:18:20.000000000 +0100
+++ build-2.6/mm/slab.c	2003-11-21 19:50:02.000000000 +0100
@@ -153,9 +153,9 @@
  * is less than 512 (PAGE_SIZE<<3), but greater than 256.
  */
 
-#define BUFCTL_END	0xffffFFFF
-#define BUFCTL_FREE	0xffffFFFE
-#define	SLAB_LIMIT	0xffffFFFD
+#define BUFCTL_END	0xfeffFFFF
+#define BUFCTL_FREE	0xf7ffFFFE
+#define	SLAB_LIMIT	0xf0ffFFFD
 typedef unsigned int kmem_bufctl_t;
 
 /* Max number of objs-per-slab for caches which use off-slab slabs.