Version 3.30.33.6 (cherry-pick)

src/heap/mark-compact.cc

Index: src/heap/mark-compact.cc
diff --git a/src/heap/mark-compact.cc b/src/heap/mark-compact.cc
index 2cefebf980ea1625a81e9e097623c68f12320363..23f259c0563eb67436ea9d9e01aee787d536ad21 100644
--- a/src/heap/mark-compact.cc
+++ b/src/heap/mark-compact.cc
@@ -4222,6 +4222,10 @@ void MarkCompactCollector::SweepSpaces() {
 
   // Deallocate evacuated candidate pages.
   ReleaseEvacuationCandidates();
+  CodeRange* code_range = heap()->isolate()->code_range();
+  if (code_range != NULL && code_range->valid()) {
+    code_range->ReserveEmergencyBlock();
+  }
 
   if (FLAG_print_cumulative_gc_stat) {
     heap_->tracer()->AddSweepingTime(base::OS::TimeCurrentMillis() -