--- init/Kconfig.000	2013-06-10 11:18:35.000000000 +0200
+++ init/Kconfig.000	2013-06-10 11:19:26.000000000 +0200
@@ -342,6 +342,7 @@ 
 config VIRT_CPU_ACCOUNTING_GEN
 	bool "Full dynticks CPU time accounting"
 	depends on HAVE_CONTEXT_TRACKING && 64BIT
+	depends on !SCHED_BFS
 	select VIRT_CPU_ACCOUNTING
 	select CONTEXT_TRACKING
 	help