diff -urp linux-2.6.3-mm4/mm/slab.c linux-2.6.3-mm4.new/mm/slab.c
--- linux-2.6.3-mm4/mm/slab.c	2004-02-27 12:09:48.000000000 -0600
+++ linux-2.6.3-mm4.new/mm/slab.c	2004-02-27 12:26:09.000000000 -0600
@@ -1973,7 +1973,7 @@ cache_alloc_debugcheck_after(kmem_cache_
 		slabp = GET_PAGE_SLAB(virt_to_page(objp));
 
 		objnr = (objp - slabp->s_mem) / cachep->objsize;
-		slab_bufctl(slabp)[objnr] = (int)caller;
+		slab_bufctl(slabp)[objnr] = (unsigned long)caller;
 	}
 	objp += obj_dbghead(cachep);
 	if (cachep->ctor && cachep->flags & SLAB_POISON) {