RFR: 8201826: G1: Don't invoke WeakProcessor if mark stack has overflowed

[Kim Barrett]

> On Apr 19, 2018, at 3:21 AM, Thomas Schatzl <thomas.schatzl at oracle.com> wrote:
> 
> Hi Kim,
> 
> On Thu, 2018-04-19 at 00:56 -0400, Kim Barrett wrote:
>> Please review this change to G1 concurrent marking to not invoke the
>> WeakProcessor when the mark stack has overflowed, as the is-alive
>> closure is not accurate in that situation.
>> 
>> CR:
>> https://bugs.openjdk.java.net/browse/JDK-8201826
>> 
>> Webrev:
>> http://cr.openjdk.java.net/~kbarrett/8201826/open.00/
>> 
>> Testing:
>> {jdk,hs}-tier{1,2,3} on all Oracle supported platforms.
>> 
> 
>  looks good.
> 
> Thomas

Thanks.