Index: kernel/generic/src/mm/frame.c
===================================================================
--- kernel/generic/src/mm/frame.c	(revision 5f7a0efdf9317065441dea283bfb70a495d7634c)
+++ kernel/generic/src/mm/frame.c	(revision 498b20153808a4296ace87eaa357438dc95949e5)
@@ -266,5 +266,5 @@
 	
 	/* Mask off flags that are not applicable. */
-	flags &= FRAME_LOW_16_GiB;
+	flags &= FRAME_LOW_4_GiB;
 
 	spinlock_lock(&zones.lock);
@@ -824,8 +824,8 @@
 
 	/* Mask off flags that are calculated automatically. */
-	flags &= ~FRAME_LOW_16_GiB;
+	flags &= ~FRAME_LOW_4_GiB;
 	/* Determine calculated flags. */
-	if (z->base + count < (1ULL << (34 - FRAME_WIDTH)))	/* 16 GiB */
-		flags |= FRAME_LOW_16_GiB;
+	if (z->base + count < (1ULL << (32 - FRAME_WIDTH)))	/* 4 GiB */
+		flags |= FRAME_LOW_4_GiB;
 
 	z->flags = flags;