Index: linux-2.6/mm/slab.c
===================================================================
--- linux-2.6.orig/mm/slab.c	2007-01-29 10:41:56.000000000 -0800
+++ linux-2.6/mm/slab.c	2007-01-29 10:45:27.000000000 -0800
@@ -1270,6 +1270,7 @@ static int __cpuinit cpuup_callback(stru
 #ifdef CONFIG_HOTPLUG_CPU
 	case CPU_DOWN_PREPARE:
 		mutex_lock(&cache_chain_mutex);
+		per_cpu(reap_work, cpu).func = NULL;
 		break;
 	case CPU_DOWN_FAILED:
 		mutex_unlock(&cache_chain_mutex);