Index: generic/src/proc/task.c
===================================================================
--- generic/src/proc/task.c	(revision 1068f6a33444f5917a7f47f13b57ebe76e675eb3)
+++ generic/src/proc/task.c	(revision fd4d8c080e51030459c861e84ddbc47663832efa)
@@ -155,5 +155,5 @@
 	 */
 	a = as_area_create(as, AS_AREA_READ | AS_AREA_WRITE, LOADED_PROG_STACK_PAGES_NO*PAGE_SIZE,
-		USTACK_ADDRESS, AS_AREA_ATTR_NONE);
+		USTACK_ADDRESS, AS_AREA_ATTR_NONE, &anon_backend, NULL);
 
 	t = thread_create(uinit, kernel_uarg, task, 0, "uinit");