diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index d772780..5b40acf 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -6391,15 +6391,23 @@
         return NO_ERROR;
     }
 
-    // Traversal of drawing state must happen on the main thread.
-    // Otherwise, SortedVector may have shared ownership during concurrent
-    // traversals, which can result in use-after-frees.
+    // Collect debug data from main thread
     std::string compositionLayers;
     mScheduler
             ->schedule([&]() FTL_FAKE_GUARD(mStateLock) FTL_FAKE_GUARD(kMainThreadContext) {
                 dumpVisibleFrontEnd(compositionLayers);
             })
             .get();
+    // get window info listener data without the state lock
+    auto windowInfosDebug = mWindowInfosListenerInvoker->getDebugInfo();
+    compositionLayers.append("Window Infos:\n");
+    StringAppendF(&compositionLayers, "  max send vsync id: %" PRId64 "\n",
+                  ftl::to_underlying(windowInfosDebug.maxSendDelayVsyncId));
+    StringAppendF(&compositionLayers, "  max send delay (ns): %" PRId64 " ns\n",
+                  windowInfosDebug.maxSendDelayDuration);
+    StringAppendF(&compositionLayers, "  unsent messages: %zu\n",
+                  windowInfosDebug.pendingMessageCount);
+    compositionLayers.append("\n");
     dumpAll(args, compositionLayers, result);
     write(fd, result.c_str(), result.size());
     return NO_ERROR;
@@ -6982,15 +6990,6 @@
 
     result.append(mTimeStats->miniDump());
     result.append("\n");
-
-    result.append("Window Infos:\n");
-    auto windowInfosDebug = mWindowInfosListenerInvoker->getDebugInfo();
-    StringAppendF(&result, "  max send vsync id: %" PRId64 "\n",
-                  ftl::to_underlying(windowInfosDebug.maxSendDelayVsyncId));
-    StringAppendF(&result, "  max send delay (ns): %" PRId64 " ns\n",
-                  windowInfosDebug.maxSendDelayDuration);
-    StringAppendF(&result, "  unsent messages: %zu\n", windowInfosDebug.pendingMessageCount);
-    result.append("\n");
 }
 
 mat4 SurfaceFlinger::calculateColorMatrix(float saturation) {