Index: linux-2.6.21-mm1/mm/slub.c
===================================================================
--- linux-2.6.21-mm1.orig/mm/slub.c	2007-05-07 16:55:41.000000000 -0700
+++ linux-2.6.21-mm1/mm/slub.c	2007-05-07 17:08:12.000000000 -0700
@@ -1354,6 +1354,7 @@ static void *__slab_alloc(struct kmem_ca
 	void **object;
 	int cpu = smp_processor_id();
 
+	printk(KERN_CRIT "__slab_alloc(%s, %x,%d,%p,%p)\n", s->name, gfpflags, node, addr, page);
 	if (!page)
 		goto new_slab;
 
@@ -1370,6 +1371,7 @@ load_freelist:
 	object = page->freelist;
 	page->cpu_freelist = object[page->offset];
 	page->inuse = s->objects;
+	page->freelist = NULL;
 	slab_unlock(page);
 	return object;
 
@@ -2457,6 +2459,7 @@ void __init kmem_cache_init(void)
  */
 static int slab_unmergeable(struct kmem_cache *s)
 {
+	printk(KERN_CRIT "slab_unmergeable(%s)\n", s->name);
 	if (slub_nomerge || (s->flags & SLUB_NEVER_MERGE))
 		return 1;
 
@@ -2473,6 +2476,8 @@ static struct kmem_cache *find_mergeable
 {
 	struct list_head *h;
 
+	printk("find_mergeable(%d,%d,%x)\n", size, align, flags);
+
 	if (slub_nomerge || (flags & SLUB_NEVER_MERGE))
 		return NULL;
 
@@ -2518,6 +2523,7 @@ struct kmem_cache *kmem_cache_create(con
 {
 	struct kmem_cache *s;
 
+	printk(KERN_CRIT "kmem_cache_create(%s, %d, %d)\n", name, size, align);
 	down_write(&slub_lock);
 	s = find_mergeable(size, align, flags, dtor, ctor);
 	if (s) {