diff -r cdfe09f9bdee -r 0589d3ba9809 src/arch/x86/tlb.cc
--- a/src/arch/x86/tlb.cc	Mon Jun 04 10:57:23 2012 -0700
+++ b/src/arch/x86/tlb.cc	Wed May 30 21:35:41 2012 -0500
@@ -270,7 +270,7 @@
             Addr base = tc->readMiscRegNoEffect(MISCREG_SEG_BASE(seg));
             Addr limit = tc->readMiscRegNoEffect(MISCREG_SEG_LIMIT(seg));
             bool sizeOverride = (flags & (AddrSizeFlagBit << FlagShift));
-            int logSize = sizeOverride ? m5Reg.altAddr : m5Reg.defAddr;
+            unsigned int logSize = sizeOverride ? (unsigned int)m5Reg.altAddr : (unsigned int)m5Reg.defAddr;
             int size = (1 << logSize) * 8;
             Addr offset = bits(vaddr - base, size - 1, 0);
             Addr endOffset = offset + req->getSize() - 1;