1 files changed, 4 insertions, 1 deletions
diff --git a/js/src/gc/Nursery.cpp b/js/src/gc/Nursery.cpp
index 4753848c56..e3afd5d055 100644
--- a/js/src/gc/Nursery.cpp
+++ b/js/src/gc/Nursery.cpp
@@ -613,6 +613,9 @@ void js::Nursery::leaveZealMode() {
 
   MOZ_ASSERT(isEmpty());
 
+  // Reset the nursery size.
+  setCapacity(minSpaceSize());
+
   toSpace.moveToStartOfChunk(this, 0);
   toSpace.setStartToCurrentPosition();
 
@@ -1810,7 +1813,7 @@ void Nursery::requestMinorGC(JS::GCReason reason) {
   } else if (heapState == JS::HeapState::MajorCollecting) {
     // The GC runs sweeping tasks that may access the storebuffer in parallel
     // and these require taking the store buffer lock.
-    MOZ_ASSERT(CurrentThreadIsGCSweeping());
+    MOZ_ASSERT(!CurrentThreadIsGCMarking());
     runtime()->gc.assertCurrentThreadHasLockedStoreBuffer();
   } else {
     MOZ_CRASH("Unexpected heap state");