diff -r 21eede796ebc -r 30307bfe1e8c src/arch/x86/pagetable_walker.hh
--- a/src/arch/x86/pagetable_walker.hh	Mon Jan 05 16:43:24 2015 +0000
+++ b/src/arch/x86/pagetable_walker.hh	Mon Jan 05 16:44:25 2015 +0000
@@ -183,6 +183,11 @@
         // Wrapper for checking for squashes before starting a translation.
         void startWalkWrapper();
 
+        /**
+         * Event used to call startWalkWrapper.
+         **/
+        EventWrapper<Walker, &Walker::startWalkWrapper> startWalkWrapperEvent;
+
         // Functions for dealing with packets.
         bool recvTimingResp(PacketPtr pkt);
         void recvRetry();
@@ -207,7 +212,8 @@
             MemObject(params), port(name() + ".port", this),
             funcState(this, NULL, NULL, true), tlb(NULL), sys(params->system),
             masterId(sys->getMasterId(name())),
-            numSquashable(params->num_squash_per_cycle)
+            numSquashable(params->num_squash_per_cycle),
+            startWalkWrapperEvent(this)
         {
         }
     };
diff -r 21eede796ebc -r 30307bfe1e8c src/arch/x86/pagetable_walker.cc
--- a/src/arch/x86/pagetable_walker.cc	Mon Jan 05 16:43:24 2015 +0000
+++ b/src/arch/x86/pagetable_walker.cc	Mon Jan 05 16:44:25 2015 +0000
@@ -124,8 +124,10 @@
         delete senderWalk;
         // Since we block requests when another is outstanding, we
         // need to check if there is a waiting request to be serviced
-        if (currStates.size())
-            startWalkWrapper();
+        if (currStates.size() && !startWalkWrapperEvent.scheduled())
+            // delay sending any new requests until we are finished
+            // with the responses
+            schedule(startWalkWrapperEvent, clockEdge());
     }
     return true;
 }