Index: uspace/lib/posix/src/sys/mman.c
===================================================================
--- uspace/lib/posix/src/sys/mman.c	(revision 1433ecda9b732f3f185f902feb26826ec2496e03)
+++ uspace/lib/posix/src/sys/mman.c	(revision aa0c8b24160b1e5af03a3ef9039095a71bccfeb7)
@@ -45,6 +45,8 @@
 		start = AS_AREA_ANY;
 
-//	if (!((flags & MAP_SHARED) ^ (flags & MAP_PRIVATE)))
-//		return MAP_FAILED;
+#if 0
+	if (!((flags & MAP_SHARED) ^ (flags & MAP_PRIVATE)))
+		return MAP_FAILED;
+#endif
 
 	if (!(flags & MAP_ANONYMOUS))