Index: linux-2.6.20-mm2/include/asm/io_apic.h
===================================================================
--- linux-2.6.20-mm2.orig/include/asm/io_apic.h	2007-02-21 19:26:14.000000000 -0800
+++ linux-2.6.20-mm2/include/asm/io_apic.h	2007-02-21 19:26:26.000000000 -0800
@@ -54,6 +54,7 @@
 	} __attribute__ ((packed)) bits;
 };
 
+#define MAX_IO_APICS 128
 /*
  * # of IO-APICs and # of IRQ routing registers
  */