diff -urpN -X /home/fletch/.diff.exclude 880-gcov/arch/i386/kernel/irq.c 890-stack_fix/arch/i386/kernel/irq.c
--- 880-gcov/arch/i386/kernel/irq.c	Wed Jul  2 22:02:19 2003
+++ 890-stack_fix/arch/i386/kernel/irq.c	Thu Jul  3 07:04:10 2003
@@ -430,7 +430,7 @@ struct pt_regs * do_IRQ(struct pt_regs *
 		long esp;
 
 		__asm__ __volatile__("andl %%esp,%0" :
-					"=r" (esp) : "0" (8191));
+					"=r" (esp) : "0" (THREAD_SIZE-1));
 		if (unlikely(esp < (sizeof(struct thread_info) + 1024))) {
 			printk("do_IRQ: stack overflow: %ld\n",
 				esp - sizeof(struct thread_info));