Set maximum length of FixedArray in terms of elements instead an absolute number of bytes.

src/objects.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2080 matching lines @@
 
   // Code Generation support.
   static int OffsetOfElementAt(int index) { return SizeFor(index); }
 
   // Casting.
   static inline FixedArray* cast(Object* obj);
 
   // Maximal allowed size, in bytes, of a single FixedArray.
   // Prevents overflowing size computations, as well as extreme memory
   // consumption.
-  static const int kMaxSize = 512 * MB;
+  static const int kMaxSize = 128 * MB * kPointerSize;
   // Maximally allowed length of a FixedArray.
   static const int kMaxLength = (kMaxSize - kHeaderSize) / kPointerSize;
 
   // Dispatched behavior.
 #ifdef OBJECT_PRINT
   inline void FixedArrayPrint() {
     FixedArrayPrint(stdout);
   }
   void FixedArrayPrint(FILE* out);
 #endif
@@ skipping 1220 matching lines @@
   void FreeSpaceVerify();
 #endif
 
   // Layout description.
   // Size is smi tagged when it is stored.
   static const int kSizeOffset = HeapObject::kHeaderSize;
   static const int kHeaderSize = kSizeOffset + kPointerSize;
 
   static const int kAlignedSize = OBJECT_POINTER_ALIGN(kHeaderSize);
 
-  // Maximal size of a single FreeSpace.
-  static const int kMaxSize = 512 * MB;
-
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(FreeSpace);
 };
 
 
 // An ExternalArray represents a fixed-size array of primitive values
 // which live outside the JavaScript heap. Its subclasses are used to
 // implement the CanvasArray types being defined in the WebGL
 // specification. As of this writing the first public draft is not yet
 // available, but Khronos members can access the draft at:
@@ skipping 4532 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_