[aarch64-port-dev ] RFR: Critical Shenandoah patch for interpreter

[Roman Kennke]

Am Donnerstag, den 14.07.2016, 17:36 +0200 schrieb Roman Kennke:
> The aarch64-port/jdk8u-shenandoah forest already has the ztos
> handling
> code in the interpreter, that we don't yet have in Shenandoah's jdk8u
> repository, and for that reason was lacking a write-barrier in the
> bool
> putfield handler.
> 
> http://cr.openjdk.java.net/~rkennke/interpr-boolean-wb/webrev.00/
> 
> You might need to do the same for aarch64's interpreter?

Ping?

Also, the following changesets need to be included into the integration
repository:

http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/51d8c9b5de87
http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/bf65b0423b2d
http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/306ff307a68d
http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/80821b48a837
http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/b67217ccdc3c
http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/01d7999614f6
http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/1e2c94c741bb
http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/9b261ed40799
http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/fa985a203d39
http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/a75014eb896d
http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/7cc5667f2121
http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/597d20bb52fb
http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/92d0c4de9788

Those fix:
- Growing of the heap (i.e. when -Xms and -Xmx are different)
- Add some missing barriers
- Make CAS-obj a loop
- Fix freeze in JNI critical region support code

All of those are straightforward backports of corresponding code in
jdk9, where the patches have baked for a while. All of them fix some
important issues (freezes, failures in concurrency code, etc). Can
those be included into the integration repository, together with the
original boolean putfield patch asap?

Roman