diff --git a/groundtest b/groundtest
index f398b321..49a2e33a 160000
--- a/groundtest
+++ b/groundtest
@@ -1 +1 @@
-Subproject commit f398b3213e3e9411f9014b418a8e7cfa669c5f8b
+Subproject commit 49a2e33ad9a91d3dbf58b0342b43d4e60db87104
diff --git a/src/main/scala/TestConfigs.scala b/src/main/scala/TestConfigs.scala
index a1cf3a02..af10599f 100644
--- a/src/main/scala/TestConfigs.scala
+++ b/src/main/scala/TestConfigs.scala
@@ -57,6 +57,7 @@ class WithBroadcastRegressionTest extends Config(
       (id: Int, p: Parameters) => Module(new RegressionTest()(p))
     case GroundTestRegressions =>
       (p: Parameters) => RegressionTests.broadcastRegressions(p)
+    case GroundTestMaxXacts => 3
   })
 
 class WithCacheRegressionTest extends Config(
@@ -65,6 +66,7 @@ class WithCacheRegressionTest extends Config(
       (id: Int, p: Parameters) => Module(new RegressionTest()(p))
     case GroundTestRegressions =>
       (p: Parameters) => RegressionTests.cacheRegressions(p)
+    case GroundTestMaxXacts => 3
   })
 
 class GroundTestConfig extends Config(new WithGroundTest ++ new DefaultConfig)
diff --git a/uncore b/uncore
index f9eda0eb..3bb143cc 160000
--- a/uncore
+++ b/uncore
@@ -1 +1 @@
-Subproject commit f9eda0ebb010a4bf99609d2ef6f93b85756e3ccb
+Subproject commit 3bb143cc36fba3433b0ceb4256ea11a8a00155ea