diff --git a/libs/binder/ProcessState.cpp b/libs/binder/ProcessState.cpp
index 4f21cda..9abe4b5 100644
--- a/libs/binder/ProcessState.cpp
+++ b/libs/binder/ProcessState.cpp
@@ -176,6 +176,11 @@
 {
     AutoMutex _l(mLock);
     if (!mThreadPoolStarted) {
+        if (mMaxThreads == 0) {
+            ALOGW("Extra binder thread started, but 0 threads requested. Do not use "
+                  "*startThreadPool when zero threads are requested.");
+        }
+
         mThreadPoolStarted = true;
         spawnPooledThread(true);
     }