diff -r 81f2654d015b -r d489a78d1848 configs/common/FSConfig.py
--- a/configs/common/FSConfig.py	Thu Feb 23 00:30:10 2012 -0800
+++ b/configs/common/FSConfig.py	Sun Feb 26 05:38:19 2012 -0800
@@ -354,7 +354,7 @@
     IO_address_space_base = 0x8000000000000000
     return IO_address_space_base + port
 
-def connectX86ClassicSystem(x86_sys):
+def connectX86ClassicSystem(x86_sys, numCPUs):
     # Constants similar to x86_traits.hh
     IO_address_space_base = 0x8000000000000000
     pci_config_address_space_base = 0xc000000000000000
@@ -390,7 +390,8 @@
     x86_sys.apicbridge.master = x86_sys.membus.slave
     x86_sys.apicbridge.ranges = [AddrRange(interrupts_address_space_base,
                                            interrupts_address_space_base +
-                                           APIC_range_size - 1)]
+                                           numCPUs * APIC_range_size
+                                           - 1)]
 
     # connect the io bus
     x86_sys.pc.attachIO(x86_sys.iobus)
@@ -435,7 +436,7 @@
         # dma controllers
         self._dma_devices = [self.pc.south_bridge.ide]
     else:
-        connectX86ClassicSystem(self)
+        connectX86ClassicSystem(self, numCPUs)
 
     self.intrctrl = IntrControl()