diff --git a/doc/ReleaseNotes b/doc/ReleaseNotes
index 3a02861ab3..26ab1d8813 100644
--- a/doc/ReleaseNotes
+++ b/doc/ReleaseNotes
@@ -17,6 +17,10 @@ This issue fixes several bugs that were still found in 1.9.2.
 * Improve performance of texture load and store operations
 * Fix crashes with pbuffers on Intel cards on Windows
 * Support for Autodesk Maya 2016.5
+* Add shadow-depth-bits config var to control shadow map depth
+* Fix cull issue when rendering cube map (or any multi-lens setup)
+* Fix crash rendering with the same camera to different contexts
+* Fix compile error when making static build with DX9 renderer
 
 ------------------------  RELEASE 1.9.2  ------------------------
 
diff --git a/panda/src/display/graphicsEngine.cxx b/panda/src/display/graphicsEngine.cxx
index ac2c194195..7e56778f2c 100644
--- a/panda/src/display/graphicsEngine.cxx
+++ b/panda/src/display/graphicsEngine.cxx
@@ -118,6 +118,23 @@ PStatCollector GraphicsEngine::_occlusion_passed_pcollector("Occlusion results:V
 PStatCollector GraphicsEngine::_occlusion_failed_pcollector("Occlusion results:Occluded");
 PStatCollector GraphicsEngine::_occlusion_tests_pcollector("Occlusion tests");
 
+// This is used to keep track of which scenes we have already culled.
+struct CullKey {
+  GraphicsStateGuardian *_gsg;
+  NodePath _camera;
+  int _lens_index;
+};
+
+INLINE static bool operator < (const CullKey &a, const CullKey &b) {
+  if (a._gsg != b._gsg) {
+    return a._gsg < b._gsg;
+  }
+  if (a._camera != b._camera) {
+    return a._camera < b._camera;
+  }
+  return a._lens_index < b._lens_index;
+}
+
 /**
  * Creates a new GraphicsEngine object.  The Pipeline is normally left to
  * default to NULL, which indicates the global render pipeline, but it may be
@@ -1375,7 +1392,6 @@ cull_to_bins(const GraphicsEngine::Windows &wlist, Thread *current_thread) {
 
   // Keep track of the cameras we have already used in this thread to render
   // DisplayRegions.
-  typedef pair<NodePath, int> CullKey;
   typedef pmap<CullKey, DisplayRegion *> AlreadyCulled;
   AlreadyCulled already_culled;
 
@@ -1390,10 +1406,13 @@ cull_to_bins(const GraphicsEngine::Windows &wlist, Thread *current_thread) {
         if (dr != (DisplayRegion *)NULL) {
           DisplayRegionPipelineReader *dr_reader =
             new DisplayRegionPipelineReader(dr, current_thread);
-          NodePath camera = dr_reader->get_camera();
-          int lens_index = dr_reader->get_lens_index();
 
-          AlreadyCulled::iterator aci = already_culled.insert(AlreadyCulled::value_type(CullKey(camera, lens_index), (DisplayRegion *)NULL)).first;
+          CullKey key;
+          key._gsg = win->get_gsg();
+          key._camera = dr_reader->get_camera();
+          key._lens_index = dr_reader->get_lens_index();
+
+          AlreadyCulled::iterator aci = already_culled.insert(AlreadyCulled::value_type(key, (DisplayRegion *)NULL)).first;
           if ((*aci).second == NULL) {
             // We have not used this camera already in this thread.  Perform
             // the cull operation.
diff --git a/panda/src/event/pythonTask.cxx b/panda/src/event/pythonTask.cxx
index 61068759f1..fb508307df 100644
--- a/panda/src/event/pythonTask.cxx
+++ b/panda/src/event/pythonTask.cxx
@@ -188,6 +188,19 @@ get_upon_death() {
  */
 void PythonTask::
 set_owner(PyObject *owner) {
+#ifndef NDEBUG
+  if (owner != Py_None) {
+    PyObject *add = PyObject_GetAttrString(owner, "_addTask");
+    PyObject *clear = PyObject_GetAttrString(owner, "_clearTask");
+
+    if (add == NULL || !PyCallable_Check(add) ||
+        clear == NULL || !PyCallable_Check(clear)) {
+      Dtool_Raise_TypeError("owner object should have _addTask and _clearTask methods");
+      return;
+    }
+  }
+#endif
+
   if (_owner != NULL && _owner != Py_None && _state != S_inactive) {
     unregister_from_owner();
   }
@@ -494,10 +507,16 @@ do_python_task() {
   ostringstream strm;
 #if PY_MAJOR_VERSION >= 3
   PyObject *str = PyObject_ASCII(result);
+  if (str == NULL) {
+    str = PyUnicode_FromString("<repr error>");
+  }
   strm
     << *this << " returned " << PyUnicode_AsUTF8(str);
 #else
   PyObject *str = PyObject_Repr(result);
+  if (str == NULL) {
+    str = PyString_FromString("<repr error>");
+  }
   strm
     << *this << " returned " << PyString_AsString(str);
 #endif
@@ -606,18 +625,9 @@ call_owner_method(const char *method_name) {
   if (_owner != Py_None) {
     PyObject *func = PyObject_GetAttrString(_owner, (char *)method_name);
     if (func == (PyObject *)NULL) {
-#if PY_MAJOR_VERSION >= 3
-      PyObject *str = PyObject_ASCII(_owner);
       task_cat.error()
-        << "Owner object " << PyUnicode_AsUTF8(str) << " added to "
-        << *this << " has no method " << method_name << "().\n";
-#else
-      PyObject *str = PyObject_Repr(_owner);
-      task_cat.error()
-        << "Owner object " << PyString_AsString(str) << " added to "
-        << *this << " has no method " << method_name << "().\n";
-#endif
-      Py_DECREF(str);
+        << "Owner object added to " << *this << " has no method "
+        << method_name << "().\n";
 
     } else {
       call_function(func);
diff --git a/panda/src/framework/pandaFramework.cxx b/panda/src/framework/pandaFramework.cxx
index 3703793fac..d5c6b49829 100644
--- a/panda/src/framework/pandaFramework.cxx
+++ b/panda/src/framework/pandaFramework.cxx
@@ -94,7 +94,7 @@ open_framework(int &argc, char **&argv) {
   extern EXPCL_PANDAGL void init_libpandagl();
   init_libpandagl();
   #elif defined(HAVE_DX9)
-  extern EXPCL_PANDADX9 void init_libpandadx9();
+  extern EXPCL_PANDADX void init_libpandadx9();
   init_libpandadx9();
   #elif defined(HAVE_TINYDISPLAY)
   extern EXPCL_TINYDISPLAY void init_libtinydisplay();