Version 4.5.103.15 (cherry-pick)

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index 86b546940a40e13674804efa90e58d49ada01738..d0b29f6b0f35b0d84cae3a58d51fff8baf22bb52 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -966,7 +966,9 @@ bool Heap::CollectGarbage(GarbageCollector collector, const char* gc_reason,
           (committed_memory_before - committed_memory_after) > MB ||
           HasHighFragmentation(used_memory_after, committed_memory_after) ||
           (detached_contexts()->length() > 0);
-      memory_reducer_.NotifyMarkCompact(event);
+      if (deserialization_complete_) {
+        memory_reducer_.NotifyMarkCompact(event);
+      }
     }
 
     tracer()->Stop(collector);