diff --git a/core/java/android/os/BinderProxy.java b/core/java/android/os/BinderProxy.java
index 16d041ac60f2e..d026e959905c5 100644
--- a/core/java/android/os/BinderProxy.java
+++ b/core/java/android/os/BinderProxy.java
@@ -34,6 +34,9 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
 
 /**
  * Java proxy for a native IBinder object.
@@ -262,27 +265,45 @@ public final class BinderProxy implements IBinder {
                 Log.e(Binder.TAG, "RemoteException while disabling app freezer");
             }
 
-            for (WeakReference<BinderProxy> weakRef : proxiesToQuery) {
-                BinderProxy bp = weakRef.get();
-                String key;
-                if (bp == null) {
-                    key = "<cleared weak-ref>";
-                } else {
-                    try {
-                        key = bp.getInterfaceDescriptor();
-                        if ((key == null || key.isEmpty()) && !bp.isBinderAlive()) {
-                            key = "<proxy to dead node>";
+            // We run the dump on a separate thread, because there are known cases where
+            // a process overrides getInterfaceDescriptor() and somehow blocks on it, causing
+            // the calling thread (usually AMS) to hit the watchdog.
+            // Do the dumping on a separate thread instead, and give up after a while.
+            ExecutorService executorService = Executors.newSingleThreadExecutor();
+            executorService.submit(() -> {
+                for (WeakReference<BinderProxy> weakRef : proxiesToQuery) {
+                    BinderProxy bp = weakRef.get();
+                    String key;
+                    if (bp == null) {
+                        key = "<cleared weak-ref>";
+                    } else {
+                        try {
+                            key = bp.getInterfaceDescriptor();
+                            if ((key == null || key.isEmpty()) && !bp.isBinderAlive()) {
+                                key = "<proxy to dead node>";
+                            }
+                        } catch (Throwable t) {
+                            key = "<exception during getDescriptor>";
                         }
-                    } catch (Throwable t) {
-                        key = "<exception during getDescriptor>";
+                    }
+                    Integer i = counts.get(key);
+                    if (i == null) {
+                        counts.put(key, 1);
+                    } else {
+                        counts.put(key, i + 1);
                     }
                 }
-                Integer i = counts.get(key);
-                if (i == null) {
-                    counts.put(key, 1);
-                } else {
-                    counts.put(key, i + 1);
+            });
+
+            try {
+                executorService.shutdown();
+                boolean dumpDone = executorService.awaitTermination(20, TimeUnit.SECONDS);
+                if (!dumpDone) {
+                    Log.e(Binder.TAG, "Failed to complete binder proxy dump,"
+                            + " dumping what we have so far.");
                 }
+            } catch (InterruptedException e) {
+                // Ignore
             }
             try {
                 ActivityManager.getService().enableAppFreezer(true);