Unlink pages from the space page list after evacuation.

src/heap/spaces.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/base/bits.h"
 #include "src/base/platform/platform.h"
 #include "src/full-codegen.h"
 #include "src/heap/mark-compact.h"
@@ skipping 1092 matching lines @@
     page->ClearFlag(MemoryChunk::SCAN_ON_SCAVENGE);
   }
 
   DCHECK(!free_list_.ContainsPageFreeListItems(page));
 
   if (Page::FromAllocationTop(allocation_info_.top()) == page) {
     allocation_info_.set_top(NULL);
     allocation_info_.set_limit(NULL);
   }
 
-  page->Unlink();
+  // If page is still in a list, unlink it from that list.
+  if (page->next_chunk() != NULL) {
+    DCHECK(page->prev_chunk() != NULL);
+    page->Unlink();
+  }
+
   if (page->IsFlagSet(MemoryChunk::CONTAINS_ONLY_DATA)) {
     heap()->isolate()->memory_allocator()->Free(page);
   } else {
     heap()->QueueMemoryChunkForFree(page);
   }
 
   DCHECK(Capacity() > 0);
   accounting_stats_.ShrinkSpace(AreaSize());
 }
 
@@ skipping 2006 matching lines @@
     object->ShortPrint();
     PrintF("\n");
   }
   printf(" --------------------------------------\n");
   printf(" Marked: %x, LiveCount: %x\n", mark_size, LiveBytes());
 }
 
 #endif  // DEBUG
 }
 }  // namespace v8::internal