diff --git a/gql_test.go b/gql_test.go
index a491d7d..71df628 100644
--- a/gql_test.go
+++ b/gql_test.go
@@ -16,7 +16,7 @@ func TestGQL(t *testing.T) {
 }
 
 func TestGQLDB(t * testing.T) {
-  ctx := logTestContext(t, []string{"test", "signal", "policy", "db"})
+  ctx := logTestContext(t, []string{"thread", "test", "signal", "policy", "db"})
 
   TestUserNodeType := NodeType("TEST_USER")
   err := ctx.RegisterNodeType(TestUserNodeType, []ExtType{})
@@ -29,8 +29,8 @@ func TestGQLDB(t * testing.T) {
   err = ctx.RegisterNodeType(TestThreadNodeType, []ExtType{ACLExtType, ThreadExtType})
   fatalErr(t, err)
 
-  t1_policy_1 := NewParentOfPolicy(Actions{"signal.abort", "state.write"})
-  t1_policy_2 := NewPerNodePolicy(NodeActions{
+  t1_p1 := NewParentOfPolicy(Actions{"signal.abort", "signal.stop", "state.write"})
+  t1_p2 := NewPerNodePolicy(NodeActions{
     u1.ID: Actions{"parent.write"},
   })
   t1_thread, err := NewThreadExt(ctx, BaseThreadType, nil,nil, "init", nil)
@@ -38,7 +38,7 @@ func TestGQLDB(t * testing.T) {
   t1 := NewNode(ctx,
                 RandID(),
                 TestThreadNodeType,
-                NewACLExt(&t1_policy_1, &t1_policy_2),
+                NewACLExt(&t1_p1, &t1_p2),
                 t1_thread)
   ctx.Log.Logf("test", "T1_ID: %s", t1.ID)
 
@@ -63,7 +63,7 @@ func TestGQLDB(t * testing.T) {
                  NewGroupExt(nil))
   ctx.Log.Logf("test", "GQL_ID: %s", gql.ID)
 
-  info := ParentInfo{true, "start", "restore"}
+  info := ParentInfo{true, "start", "start"}
   context := NewWriteContext(ctx)
   err = UpdateStates(context, u1, ACLMap{}, func(context *StateContext) error {
     return LinkThreads(context, u1, gql, ChildInfo{t1, map[InfoType]Info{
@@ -101,17 +101,16 @@ func TestGQLDB(t * testing.T) {
   fatalErr(t, err)
   context = NewReadContext(ctx)
   err = UseStates(context, gql_loaded, NewACLInfo(gql_loaded, []string{"users", "children", "requirements"}), func(context *StateContext) error {
-    ser, err := gql_loaded.Serialize()
-    ctx.Log.Logf("test", "\n%s\n\n", ser)
+    var err error
     listener_ext, err = GetExt[*ListenerExt](gql_loaded)
     if err != nil {
       return err
     }
-    gql_loaded.Process(context, gql_loaded.ID, StopSignal)
-    return err
+    return gql_loaded.Process(context, gql_loaded.ID, StopSignal)
   })
+  fatalErr(t, err)
 
-  err = ThreadLoop(ctx, gql_loaded, "start")
+  err = ThreadLoop(ctx, gql_loaded, "restore")
   fatalErr(t, err)
   (*GraphTester)(t).WaitForStatus(ctx, listener_ext.Chan, "stopped", 100*time.Millisecond, "Didn't receive stopped on update_channel_2")
 
diff --git a/lockable.go b/lockable.go
index 654b048..02fa8d0 100644
--- a/lockable.go
+++ b/lockable.go
@@ -131,46 +131,40 @@ func LoadLockableExt(ctx *Context, data []byte) (Extension, error) {
 func (ext *LockableExt) Process(context *StateContext, node *Node, signal Signal) error {
   context.Graph.Log.Logf("signal", "LOCKABLE_PROCESS: %s", node.ID)
 
-  var err error
   switch signal.Direction() {
   case Up:
-    err = UseStates(context, node,
-      NewACLInfo(node, []string{"dependencies", "owner"}), func(context *StateContext) error {
-      owner_sent := false
-      for _, dependency := range(ext.Dependencies) {
-        context.Graph.Log.Logf("signal", "SENDING_TO_DEPENDENCY: %s -> %s", node.ID, dependency.ID)
-        dependency.Process(context, node.ID, signal)
-        if ext.Owner != nil {
-          if dependency.ID == ext.Owner.ID {
-            owner_sent = true
-          }
-        }
+    owner_sent := false
+    for _, dependency := range(ext.Dependencies) {
+      context.Graph.Log.Logf("signal", "SENDING_TO_DEPENDENCY: %s -> %s", node.ID, dependency.ID)
+      err := dependency.Process(context, node.ID, signal)
+      if err != nil {
+        return err
       }
-      if ext.Owner != nil && owner_sent == false {
-        if ext.Owner.ID != node.ID {
-          context.Graph.Log.Logf("signal", "SENDING_TO_OWNER: %s -> %s", node.ID, ext.Owner.ID)
-          return ext.Owner.Process(context, node.ID, signal)
+      if ext.Owner != nil {
+        if dependency.ID == ext.Owner.ID {
+          owner_sent = true
         }
       }
-      return nil
-    })
-  case Down:
-    err = UseStates(context, node, NewACLInfo(node, []string{"requirements"}), func(context *StateContext) error {
-      for _, requirement := range(ext.Requirements) {
-        err := requirement.Process(context, node.ID, signal)
+    }
+    if ext.Owner != nil && owner_sent == false {
+      if ext.Owner.ID != node.ID {
+        context.Graph.Log.Logf("signal", "SENDING_TO_OWNER: %s -> %s", node.ID, ext.Owner.ID)
+        err := ext.Owner.Process(context, node.ID, signal)
         if err != nil {
           return err
         }
       }
-      return nil
-    })
+    }
+  case Down:
+    for _, requirement := range(ext.Requirements) {
+      err := requirement.Process(context, node.ID, signal)
+      if err != nil {
+        return err
+      }
+    }
   case Direct:
-    err = nil
   default:
-    err = fmt.Errorf("invalid signal direction %d", signal.Direction())
-  }
-  if err != nil {
-    return err
+    return fmt.Errorf("invalid signal direction %d", signal.Direction())
   }
   return nil
 }
diff --git a/thread.go b/thread.go
index 875285b..f3a6b6b 100644
--- a/thread.go
+++ b/thread.go
@@ -298,36 +298,31 @@ func (ext *ThreadExt) ChildList() []*Node {
 
 // Assumed that thread is already locked for signal
 func (ext *ThreadExt) Process(context *StateContext, node *Node, signal Signal) error {
-  context.Graph.Log.Logf("signal", "THREAD_PROCESS: %s", node.ID)
+  context.Graph.Log.Logf("signal", "THREAD_PROCESS: %s - %+v", node.ID, signal)
 
-  var err error
   switch signal.Direction() {
   case Up:
-    err = UseStates(context, node, NewACLInfo(node, []string{"parent"}), func(context *StateContext) error {
-      if ext.Parent != nil {
-        if ext.Parent.ID != node.ID {
-          return ext.Parent.Process(context, node.ID, signal)
-        }
-      }
-      return nil
-    })
-  case Down:
-    err = UseStates(context, node, NewACLInfo(node, []string{"children"}), func(context *StateContext) error {
-      for _, info := range(ext.Children) {
-        err := info.Child.Process(context, node.ID, signal)
+    if ext.Parent != nil {
+      if ext.Parent.ID != node.ID {
+        err := ext.Parent.Process(context, node.ID, signal)
         if err != nil {
           return err
         }
       }
-      return nil
-    })
+    }
+  case Down:
+    for _, info := range(ext.Children) {
+      err := info.Child.Process(context, node.ID, signal)
+      if err != nil {
+        return err
+      }
+    }
   case Direct:
-    err = nil
   default:
     return fmt.Errorf("Invalid signal direction %d", signal.Direction())
   }
   ext.SignalChan <- signal
-  return err
+  return nil
 }
 
 func UnlinkThreads(context *StateContext, principal *Node, thread *Node, child *Node) error {