diff --git a/[refs] b/[refs]
index 05e7c58bd561..4d8693346903 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ac5b33c9bcf1c05ae949b026a51d7f8f9573591c
+refs/heads/master: 515bae9cdc6a78eda0879e1f158056d73ec808b7
diff --git a/trunk/arch/ppc64/mm/hash_utils.c b/trunk/arch/ppc64/mm/hash_utils.c
index 87d0525f56fa..1647b1c6f28e 100644
--- a/trunk/arch/ppc64/mm/hash_utils.c
+++ b/trunk/arch/ppc64/mm/hash_utils.c
@@ -195,7 +195,7 @@ void __init htab_initialize(void)
 		memset((void *)table, 0, htab_size_bytes);
 	}
 
-	mode_rw = _PAGE_ACCESSED | _PAGE_COHERENT | PP_RWXX;
+	mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX;
 
 	/* On U3 based machines, we need to reserve the DART area and
 	 * _NOT_ map it to avoid cache paradoxes as it's remapped non