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

[David Holmes]

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
> 
>