Partial fix for issue 173:...

src/zone.h

 // Copyright 2006-2008 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 56 matching lines @@
 
   static inline void adjust_segment_bytes_allocated(int delta);
 
  private:
 
   // All pointers returned from New() have this alignment.
   static const int kAlignment = kPointerSize;
 
   // Never allocate segments smaller than this size in bytes.
   static const int kMinimumSegmentSize = 8 * KB;
+  
+  // Never allocate segments larger than this size in bytes.
+  static const int kMaximumSegmentSize = 1 * MB;
 
   // Never keep segments larger than this size in bytes around.
   static const int kMaximumKeptSegmentSize = 64 * KB;
 
   // Report zone excess when allocation exceeds this limit.
   static int zone_excess_limit_;
 
   // The number of bytes allocated in segments.  Note that this number
   // includes memory allocated from the OS but not yet allocated from
   // the zone.
@@ skipping 101 matching lines @@
 
  private:
   ZoneScopeMode mode_;
   static int nesting_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ZONE_H_