[8u-dev] RFR (S) JDK-8165489: Missing G1 barrier in Unsafe_GetObjectVolatile

[Aleksey Shipilev]

OK, trying again with copying hotspot-dev at .

-Aleksey

On 04/16/2018 11:55 PM, David Holmes wrote:
> On 17/04/2018 12:05 AM, Aleksey Shipilev wrote:
>> Resending with better subject line, hopefully HS reviewers would see it.
> 
> You need to send to hotspot alias to get a code review.
> 
> David
> 
>> -Aleksey
>>
>> On 04/16/2018 03:41 PM, Rob McKenna wrote:
>>> This change requires a codereview. As one hasn't been explicitly
>>> requested in the subject line, then HS reviewers may overlook this
>>> email.
>>>
>>>      -Rob
>>>
>>> On 13/04/18 18:45, Aleksey Shipilev wrote:
>>>> Hi,
>>>>
>>>> Please approve this fix for 8u. This improves G1 stability in 8u, and provides the base for
>>>> Shenandoah JDK 8 backport that piggybacks on G1 pre-barriers. The fix does not apply cleanly,
>>>> because there is also Unsafe_GetObject140 that needs fixing too.
>>>>
>>>> JDK 9 bug:
>>>>    https://bugs.openjdk.java.net/browse/JDK-8165489
>>>>
>>>> JDK 9 fix:
>>>>    http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/a696583f5ddb
>>>>
>>>> JDK 8u fix:
>>>>    http://cr.openjdk.java.net/~shade/8165489-8u/webrev.01/
>>>>
>>>> Testing: x86_64 build, Shenandoah tests
>>>>
>>>> Thanks,
>>>> -Aleksey
>>
>>