diff -r f348cf78072c src/arch/mips/locked_mem.hh
--- a/src/arch/mips/locked_mem.hh	Thu Jan 12 10:15:00 2012 -0500
+++ b/src/arch/mips/locked_mem.hh	Fri Jan 13 03:22:43 2012 +0800
@@ -50,8 +50,8 @@
 inline void
 handleLockedRead(XC *xc, Request *req)
 {
-    xc->setMiscReg(MISCREG_LLADDR, req->getPaddr() & ~0xf);
-    xc->setMiscReg(MISCREG_LLFLAG, true);
+    xc->setMiscRegNoEffect(MISCREG_LLADDR, req->getPaddr() & ~0xf);
+    xc->setMiscRegNoEffect(MISCREG_LLFLAG, true);
     DPRINTF(LLSC, "[tid:%i]: Load-Link Flag Set & Load-Link"
                   " Address set to %x.\n",
             req->threadId(), req->getPaddr() & ~0xf);
@@ -74,7 +74,7 @@
             // Lock flag not set or addr mismatch in CPU;
             // don't even bother sending to memory system
             req->setExtraData(0);
-            xc->setMiscReg(MISCREG_LLFLAG, false);
+            xc->setMiscRegNoEffect(MISCREG_LLFLAG, false);
 
             // the rest of this code is not architectural;
             // it's just a debugging aid to help detect