--- linux/arch/ia64/kernel/irq.c.foo	Wed Mar 28 21:08:20 2001
+++ linux/arch/ia64/kernel/irq.c	Wed Mar 28 21:10:59 2001
@@ -185,7 +185,7 @@
 unsigned int global_irq_holder = NO_PROC_ID;
 volatile unsigned long global_irq_lock; /* long for set_bit --RR */
 
-extern void show_stack(unsigned long* esp);
+extern void show_stack(struct task_struct *task);
 
 static void show(char * str)
 {