diff --git a/src/mem/ruby/system/RubySystem.cc b/src/mem/ruby/system/RubySystem.cc
index 572f5fe..83fa4c7 100644
--- a/src/mem/ruby/system/RubySystem.cc
+++ b/src/mem/ruby/system/RubySystem.cc
@@ -432,7 +432,6 @@
                  access_perm == AccessPermission_NotPresent)
             num_invalid++;
     }
-    assert(num_rw <= 1);
 
     // This if case is meant to capture what happens in a Broadcast/Snoop
     // protocol where the block does not exist in the cache hierarchy. You
@@ -451,7 +450,14 @@
                 return true;
             }
         }
-    } else if (num_ro > 0 || num_rw == 1) {
+    } else if (num_ro > 0 || num_rw >= 1) {
+        if (num_rw > 1) {
+            // We iterate over the vector of abstract controllers, and return
+            // the first copy found. If we have more than one cache with block
+            // in writable permission, the first one found would be returned.
+            warn("More than one Abstract Controller with RW permission for "
+                 "addr: %#x on cacheline: %#x.", address, line_address);
+        }
         // In Broadcast/Snoop protocols, this covers if you know the block
         // exists somewhere in the caching hierarchy, then you want to read any
         // valid RO or RW block.  In directory protocols, same thing, you want