[8u-dev] Request for approval JDK-8165489: Missing G1 barrier in Unsafe_GetObjectVolatile

[Rob McKenna]

Thanks Aleksey, approved.

    -Rob

On 08/05/18 10:50, Aleksey Shipilev wrote:
> Hi Rob,
> 
> Review had finally happened at hotspot-dev@, see:
>   http://mail.openjdk.java.net/pipermail/hotspot-dev/2018-May/032092.html
> 
> Thomas ran this through JPRT as well.
> 
> -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
> 
>