diff -r f348cf78072c src/arch/mips/stacktrace.cc
--- a/src/arch/mips/stacktrace.cc	Thu Jan 12 10:15:00 2012 -0500
+++ b/src/arch/mips/stacktrace.cc	Fri Jan 13 03:22:43 2012 +0800
@@ -37,6 +37,7 @@
 #include "base/trace.hh"
 #include "cpu/base.hh"
 #include "cpu/thread_context.hh"
+#include "mem/vport.hh"
 #include "sim/system.hh"
 
 using namespace std;