diff -r 6385cf85bf12 -r 8a7aa00b20a4 src/arch/x86/decoder.hh
--- a/src/arch/x86/decoder.hh	Thu May 31 13:30:04 2012 -0400
+++ b/src/arch/x86/decoder.hh	Sun Jun 03 02:02:02 2012 -0700
@@ -159,6 +159,7 @@
         outOfBytes(true), instDone(false),
         state(ResetState)
     {
+        memset(&emi, 0, sizeof(emi));
         emi.mode.mode = LongMode;
         emi.mode.submode = SixtyFourBitMode;
         m5Reg = 0;