diff --git a/src/mem/ruby/system/RubyPort.cc b/src/mem/ruby/system/RubyPort.cc
index e03d23774..b2fb8d72d 100644
--- a/src/mem/ruby/system/RubyPort.cc
+++ b/src/mem/ruby/system/RubyPort.cc
@@ -505,13 +505,14 @@ void
 RubyPort::ruby_eviction_callback(Addr address)
 {
     DPRINTF(RubyPort, "Sending invalidations.\n");
-    // This request is deleted in the stack-allocated packet destructor
-    // when this function exits
+    // Allocate the invalidate request and packet on the stack, as it is
+    // assumed they will not be modified or deleted by receivers.
     // TODO: should this really be using funcMasterId?
-    RequestPtr req = new Request(address, 0, 0, Request::funcMasterId);
+    Request request(address, RubySystem::getBlockSizeBytes(), 0,
+                    Request::funcMasterId);
     // Use a single packet to signal all snooping ports of the invalidation.
     // This assumes that snooping ports do NOT modify the packet/request
-    Packet pkt(req, MemCmd::InvalidateReq);
+    Packet pkt(&request, MemCmd::InvalidateReq);
     for (CpuPortIter p = slave_ports.begin(); p != slave_ports.end(); ++p) {
         // check if the connected master port is snooping
         if ((*p)->isSnooping()) {