1 files changed, 2 insertions, 0 deletions
diff --git a/runtime/gc/heap.cc b/runtime/gc/heap.cc
index ba18699168..918b8db301 100644
--- a/runtime/gc/heap.cc
+++ b/runtime/gc/heap.cc
@@ -2490,6 +2490,8 @@ void Heap::PreZygoteFork() {
     } else {
       if (collector_type_ == kCollectorTypeCC) {
         region_space_->GetMemMap()->Protect(PROT_READ | PROT_WRITE);
+        // Evacuated everything out of the region space, clear the mark bitmap.
+        region_space_->GetMarkBitmap()->Clear();
       } else {
         bump_pointer_space_->GetMemMap()->Protect(PROT_READ | PROT_WRITE);
       }