diff --git a/[refs] b/[refs]
index ab125dd31129..684ae0aee280 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2b9e0aae1d50e880c58d46788e5e3ebd89d75d62
+refs/heads/master: df1bdc0667eb3132fe60b3562347ca9133694ee0
diff --git a/trunk/arch/x86/lib/copy_user_nocache_64.S b/trunk/arch/x86/lib/copy_user_nocache_64.S
index 4620efb12f13..5196762b3b0e 100644
--- a/trunk/arch/x86/lib/copy_user_nocache_64.S
+++ b/trunk/arch/x86/lib/copy_user_nocache_64.S
@@ -117,6 +117,7 @@ ENTRY(__copy_user_nocache)
 	popq %rbx
 	CFI_ADJUST_CFA_OFFSET -8
 	CFI_RESTORE rbx
+	sfence
 	ret
 	CFI_RESTORE_STATE