RFR (M): 8160897: Concurrent mark mark stack memory allocation leaks memory

[Thomas Schatzl]

Hi Sangheon,

On Thu, 2016-07-14 at 15:46 -0700, sangheon wrote:
> Hi Thomas,
> 
> 01 version looks good.
> 
> At first, I felt something strange from removing 'line158
> _saved_index = 
> -1;' from the original g1ConcurrentMark.cpp.
> But I understood that there's no problem as we allocate only 1 time.

Yes. Thanks for the review.

Thomas