Index: arch/ia64/include/context.h
===================================================================
--- arch/ia64/include/context.h	(revision 83817ea09bba71fa68c9bb90026e69d99a93c894)
+++ arch/ia64/include/context.h	(revision 2a40908ef0af2d3fc848456fa9243213ccf4ea60)
@@ -41,5 +41,5 @@
  * One item is put onto the stack to support get_stack_base().
  */
-#define SP_DELTA	(0+STACK_ITEM_SIZE)
+#define SP_DELTA	(0+ALIGN(STACK_ITEM_SIZE, STACK_ALIGNMENT))
 
 #define PFM_MASK	(~0x3fffffffff)
Index: arch/ia64/include/drivers/it.h
===================================================================
--- arch/ia64/include/drivers/it.h	(revision 83817ea09bba71fa68c9bb90026e69d99a93c894)
+++ arch/ia64/include/drivers/it.h	(revision 2a40908ef0af2d3fc848456fa9243213ccf4ea60)
@@ -36,5 +36,5 @@
  *
  */
-#define IT_DELTA        1000
+#define IT_DELTA        100000
 
 extern void it_init(void);