Index: arch/ia64/include/arch.h
===================================================================
--- arch/ia64/include/arch.h	(revision bafbb4b43db5d981b61c64d723a95e91306b90fb)
+++ arch/ia64/include/arch.h	(revision a84af84b414d895aeccb89cb23f05172505dd693)
@@ -30,3 +30,5 @@
 #define __ia64_ARCH_H__
 
+#define LOADED_PROG_STACK_PAGES_NO 2
+
 #endif
Index: generic/include/arch.h
===================================================================
--- generic/include/arch.h	(revision bafbb4b43db5d981b61c64d723a95e91306b90fb)
+++ generic/include/arch.h	(revision a84af84b414d895aeccb89cb23f05172505dd693)
@@ -31,4 +31,5 @@
 
 #include <arch/types.h>
+#include <arch/arch.h>
 #include <typedefs.h>
 
Index: generic/src/proc/task.c
===================================================================
--- generic/src/proc/task.c	(revision bafbb4b43db5d981b61c64d723a95e91306b90fb)
+++ generic/src/proc/task.c	(revision a84af84b414d895aeccb89cb23f05172505dd693)
@@ -44,5 +44,7 @@
 
 
-#define LOADED_PROG_STACK_PAGES_NO 2
+#ifndef LOADED_PROG_STACK_PAGES_NO
+#define LOADED_PROG_STACK_PAGES_NO 1
+#endif
 
 SPINLOCK_INITIALIZE(tasks_lock);