Index: kernel/test/mm/slab2.c
===================================================================
--- kernel/test/mm/slab2.c	(revision 4a23cb650b633ef8faebd9c7694211d254eba3cd)
+++ kernel/test/mm/slab2.c	(revision d987fd7b2c19e5d3b03a6f6ffdd7564c01fc2469)
@@ -217,5 +217,5 @@
 	
 	condvar_initialize(&thread_starter);
-	mutex_initialize(&starter_mutex);
+	mutex_initialize(&starter_mutex, MUTEX_PASSIVE);
 
 	thr_cache = slab_cache_create("thread_cache", size, 0, NULL, NULL, 0);