RFR: 8377179: Improve and document racy use of start/end in ThreadLocalAllocBuffer [v2]

[Ivan Walulya]

On Thu, 5 Feb 2026 15:21:04 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

>> Hi all,
>> 
>>   please review this change that tries to document and streamline the racy use of `ThreadLocalAllocBuffer` internals.
>> 
>> Testing: gha
>> 
>> Thanks,
>>   Thomas
>
> Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:
> 
>   * ayang review

Marked as reviewed by iwalulya (Reviewer).

failing tests

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PR Review: https://git.openjdk.org/jdk/pull/29573#pullrequestreview-3759290717
Changes requested by iwalulya (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/29573#pullrequestreview-3759294802