RFR: Enable remembered set verification during global collections [v3]

[William Kemper]

On Thu, 9 Sep 2021 20:28:52 GMT, Kelvin Nilsen <kdnilsen at openjdk.org> wrote:

>> William Kemper has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 15 commits:
>> 
>>  - Merge branch 'shenandoah' into verify-rset-during-global-gc
>>  - Simplify object iteration and respond to review feedback.
>>  - Merge branch 'earthling-master' into verify-rset-during-global-gc
>>  - Merge branch 'shenandoah' into verify-rset-during-global-gc
>>  - Coalesce and fill old objects after final mark in a global collect
>>  - Only verify first object on next card when last object spans cards
>>  - Fix infinite loop scenario and invalid limit in verifier
>>  - Use safe offset when card runs past region top
>>  - Also use mark context when verifying rset at init mark for global collects
>>  - Do not read past top of region when looking for last object in card
>>  - ... and 5 more: https://git.openjdk.java.net/shenandoah/compare/ad15b6b5...7136de8c
>
> src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp line 2645:
> 
>> 2643:             obj_addr += obj->size();
>> 2644:           } else {
>> 2645:             // This object is not live so we don'top verify dirty cards contained therein
> 
> typo here in the comment.

Fixed, thanks.

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PR: https://git.openjdk.java.net/shenandoah/pull/64