--- zzzz-none-000/linux-2.6.32.61/lib/Kconfig.debug	2013-06-10 09:43:48.000000000 +0000
+++ virian-300e-630/linux-2.6.32.61/lib/Kconfig.debug	2014-01-29 14:24:59.000000000 +0000
@@ -314,6 +314,13 @@
 	  allocation as well as poisoning memory on free to catch use of freed
 	  memory. This can make kmalloc/kfree-intensive workloads much slower.
 
+config DEBUG_SLAB_DOUBLE_FREE
+	bool "SLAB double free check enabled"
+	depends on DEBUG_KERNEL && SLAB && !DEBUG_SLAB
+	help
+	  Say Y here if you hit BUG or BUG_ON in slab.c, to find the problem.
+	  This makes kmalloc/kfree-intensive workloads only a little bit slower.
+
 config DEBUG_SLAB_LEAK
 	bool "Memory leak debugging"
 	depends on DEBUG_SLAB