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

Aleksey Shipilev shade at redhat.com
Tue Apr 17 16:04:18 UTC 2018


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 UnsafeGetObject140 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: x8664 build, Shenandoah tests Thanks, -Aleksey



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