Index: arch/ia64/src/interrupt.c
===================================================================
--- arch/ia64/src/interrupt.c	(revision dbd10599b1ec788ec24d5cd56409f18e77eb8882)
+++ arch/ia64/src/interrupt.c	(revision dbd10599b1ec788ec24d5cd56409f18e77eb8882)
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2005 Jakub Jermar
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <arch/interrupt.h>
+#include <panic.h>
+#include <arch/types.h>
+#include <arch/asm.h>
+#include <arch/barrier.h>
+
+void external_interrupt(void)
+{
+	__u8 ivr;
+	
+	srlz_d();
+	ivr = read_ivr();
+	srlz_d();
+	
+	switch(ivr) {
+	    default:
+		panic("\nUnhandled External Interrupt Vector %d\n", ivr);
+	}
+}
Index: arch/ia64/src/ivt.S
===================================================================
--- arch/ia64/src/ivt.S	(revision 37e9dbd5a7af25bc32f775aad0e1301bf5df7289)
+++ arch/ia64/src/ivt.S	(revision dbd10599b1ec788ec24d5cd56409f18e77eb8882)
@@ -386,5 +386,5 @@
 Handler2 0x2800
 Handler 0x2c00 break_instruction
-Handler2 0x3000
+Handler 0x3000 external_interrupt
 Handler2 0x3400
 Handler2 0x3800