diff --git a/panda/src/cocoadisplay/cocoaGraphicsPipe.mm b/panda/src/cocoadisplay/cocoaGraphicsPipe.mm
index 3734f37af8..5ab3d64341 100644
--- a/panda/src/cocoadisplay/cocoaGraphicsPipe.mm
+++ b/panda/src/cocoadisplay/cocoaGraphicsPipe.mm
@@ -177,7 +177,7 @@ load_display_information() {
 
   // Get processor information
   const NXArchInfo *ainfo = NXGetLocalArchInfo();
-  _display_information->_cpu_brand_string = strdup(ainfo->description);
+  _display_information->_cpu_brand_string.assign(ainfo->description);
 
   // Get version of Mac OS X
   SInt32 major, minor, bugfix;
diff --git a/panda/src/display/graphicsEngine.cxx b/panda/src/display/graphicsEngine.cxx
index 27b8c2bf28..eb346a2b7d 100644
--- a/panda/src/display/graphicsEngine.cxx
+++ b/panda/src/display/graphicsEngine.cxx
@@ -63,6 +63,13 @@
   #include <sys/time.h>
 #endif
 
+#ifdef __APPLE__
+extern "C" {
+  void *objc_autoreleasePoolPush();
+  void objc_autoreleasePoolPop(void *);
+};
+#endif
+
 using std::string;
 
 PT(GraphicsEngine) GraphicsEngine::_global_ptr;
@@ -2586,6 +2593,11 @@ void GraphicsEngine::WindowRenderer::
 do_frame(GraphicsEngine *engine, Thread *current_thread) {
   LightReMutexHolder holder(_wl_lock);
 
+#ifdef __APPLE__
+  // Enclose the entire frame in an autorelease pool.
+  void *pool = objc_autoreleasePoolPush();
+#endif
+
   if (!_cull.empty()) {
     engine->cull_to_bins(_cull, current_thread);
   }
@@ -2599,6 +2611,10 @@ do_frame(GraphicsEngine *engine, Thread *current_thread) {
     engine->process_events(_window, current_thread);
   }
 
+#ifdef __APPLE__
+  objc_autoreleasePoolPop(pool);
+#endif
+
   // If any GSG's on the list have no more outstanding pointers, clean them
   // up.  (We are in the draw thread for all of these GSG's.)
   if (any_done_gsgs()) {
@@ -2630,10 +2646,18 @@ void GraphicsEngine::WindowRenderer::
 do_windows(GraphicsEngine *engine, Thread *current_thread) {
   LightReMutexHolder holder(_wl_lock);
 
+#ifdef __APPLE__
+  void *pool = objc_autoreleasePoolPush();
+#endif
+
   engine->process_events(_window, current_thread);
 
   engine->make_contexts(_cdraw, current_thread);
   engine->make_contexts(_draw, current_thread);
+
+#ifdef __APPLE__
+  objc_autoreleasePoolPop(pool);
+#endif
 }
 
 /**