diff --git a/services/core/java/com/android/server/am/ProcessList.java b/services/core/java/com/android/server/am/ProcessList.java
index ca16f579609a9..1257f1f4bc104 100644
--- a/services/core/java/com/android/server/am/ProcessList.java
+++ b/services/core/java/com/android/server/am/ProcessList.java
@@ -2897,6 +2897,15 @@ public final class ProcessList {
         }
 
         int N = procs.size();
+        for (int i = 0; i < N; ++i) {
+            final ProcessRecord proc = procs.get(i).first;
+            try {
+                Process.setProcessFrozen(proc.getPid(), proc.uid, true);
+            } catch (Exception e) {
+                Slog.w(TAG, "Unable to freeze " + proc.getPid() + " " + proc.processName);
+            }
+        }
+
         for (int i=0; i<N; i++) {
             final Pair<ProcessRecord, Boolean> proc = procs.get(i);
             removeProcessLocked(proc.first, callerWillRestart, allowRestart || proc.second,