diff --git a/[refs] b/[refs]
index 3bbda5787840..998c07039edc 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: cbbf437a8de3192739334eb8cae7c9acee38590f
+refs/heads/master: 1e9505279a8a2303d8feef4e464e6f48ea644f03
diff --git a/trunk/arch/x86_64/Kconfig b/trunk/arch/x86_64/Kconfig
index 445f436688f3..28df7d88ce2c 100644
--- a/trunk/arch/x86_64/Kconfig
+++ b/trunk/arch/x86_64/Kconfig
@@ -24,6 +24,10 @@ config X86
 	bool
 	default y
 
+config LOCKDEP_SUPPORT
+	bool
+	default y
+
 config STACKTRACE_SUPPORT
 	bool
 	default y