---
 mm/slub.c |   15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

Index: linux-2.6/mm/slub.c
===================================================================
--- linux-2.6.orig/mm/slub.c	2008-03-07 00:22:55.115938033 -0800
+++ linux-2.6/mm/slub.c	2008-03-07 00:29:27.513739441 -0800
@@ -1689,11 +1689,14 @@ static __always_inline void *slab_alloc(
 		object = c->base + offset(old);
 		if (unlikely(is_end(object) || !node_match(c, node))) {
 			object = __slab_alloc(s, gfpflags, node, addr, c);
+			printk(KERN_CRIT "slow alloc %s object=%p\n", s->name, object);
 			break;
 		}
 		stat(c, ALLOC_FASTPATH);
-		/* No need to increment the MSB counter here, because only
-		 * object free will lead to counter re-use. */
+		/*
+		 * No need to increment the MSB counter here, because only
+		 * object free will lead to counter re-use.
+		 */
 		new = make_version(sequence(old), object[c->offset]);
 		result = cmpxchg_local(&c->freelist, old, new);
 #ifdef CONFIG_DEBUG_VM
@@ -1708,6 +1711,8 @@ static __always_inline void *slab_alloc(
 		 */
 		WARN_ON(sequence(result) - sequence(old) > HALF_MASK);
 #endif
+		printk(KERN_CRIT "alloc %s old=%p new=%p result=%p object=%p\n",
+				s->name, old, new, result, object);
 	} while (result != old);
 #else
 	unsigned long flags;
@@ -1844,6 +1849,8 @@ static __always_inline void slab_free(st
 #ifdef SLUB_FASTPATH
 	void *old, *new, *result;
 
+	printk(KERN_CRIT "slab_free %s object=%p\n", s->name, object);
+
 	c = get_cpu_slab(s, raw_smp_processor_id());
 	debug_check_no_locks_freed(object, s->objsize);
 	do {
@@ -1861,6 +1868,7 @@ static __always_inline void slab_free(st
 		 * since the freelist pointers are unique per slab.
 		 */
 		if (unlikely(page != c->page || c->node < 0)) {
+			printk("slow free\n");
 			__slab_free(s, page, x, addr, c->offset);
 			break;
 		}
@@ -1880,6 +1888,8 @@ static __always_inline void slab_free(st
 		 */
 		WARN_ON(sequence(result) - sequence(old) > HALF_MASK);
 #endif
+		printk(KERN_CRIT "slab_free %s old=%p new=%p result=%p object=%p\n",
+			s->name, old, new, result, object);
 	} while (result != old);
 #else
 	unsigned long flags;
@@ -2927,6 +2937,7 @@ int kmem_cache_shrink(struct kmem_cache 
 		kmalloc(sizeof(struct list_head) * s->max_objects, GFP_KERNEL);
 	unsigned long flags;
 
+	printk("kmem_cache_shrink %s\n", s->name);
 	if (!slabs_by_inuse)
 		return -ENOMEM;