---
 mm/slub.c |   11 +++++++++++
 1 file changed, 11 insertions(+)

Index: linux-2.6.22-rc6-mm1/mm/slub.c
===================================================================
--- linux-2.6.22-rc6-mm1.orig/mm/slub.c	2007-07-07 18:13:00.000000000 -0700
+++ linux-2.6.22-rc6-mm1/mm/slub.c	2007-07-07 18:13:26.000000000 -0700
@@ -1480,6 +1480,10 @@ static void *__slab_alloc(struct kmem_ca
 		/* Slab was flushed */
 		goto new_slab;
 
+	WARN_ON(c->objsize != s->objsize);
+	WARN_ON(c->freelist && virt_to_head_page(c->freelist)!= c->page);
+	WARN_ON(page_to_nid(c->page) != c->node);
+
 	object = xchg(&c->freelist, NULL);
 
 	slab_lock(c->page);
@@ -1591,6 +1595,10 @@ redo:
 				object[c->offset]) != object))
 		goto redo;
 
+	WARN_ON(c->objsize != s->objsize);
+	WARN_ON(c->freelist && virt_to_head_page(c->freelist)!= c->page);
+	WARN_ON(page_to_nid(c->page) != c->node);
+
 	if (unlikely((gfpflags & __GFP_ZERO)))
 		memset(object, 0, c->objsize);
 
@@ -1717,6 +1725,9 @@ redo:
 
 	if (unlikely(cmpxchg(&c->freelist, freelist, object) != freelist))
 		goto redo;
+	WARN_ON(c->objsize != s->objsize);
+	WARN_ON(c->freelist && virt_to_head_page(c->freelist)!= c->page);
+	WARN_ON(page_to_nid(c->page) != c->node);
 
 	return;