RFR: 8351334: [ubsan] memoryReserver.cpp:552:60: runtime error: applying non-zero offset 1073741824 to null pointer [v7]

[Afshin Zafari]

On Mon, 20 Oct 2025 07:34:39 GMT, Afshin Zafari <azafari at openjdk.org> wrote:

>> Afshin Zafari has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   fixed MAX2 template parameter
>
> It seems that this PR is diverging in some (un)related changes. I suggest to define separate new RFEs per issues found here.

> Sorry @afshin-zafari but this PR has me quite confused. The code changes do not reflect the PR description. The PR description does not obviously connect to the JBS problem statement. And the code changes in the PR seem unrelated to the value of aligned_heap_base_min_address as referenced in JBS.
> 
> And the cast changes in memoryReserver.cpp seem completely unrelated.
> 
> That said, I do not know how all of these heap variables interact and relate, so you really need the GC folk to understand and approve this.

PR description is updated.

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PR Comment: https://git.openjdk.org/jdk/pull/26955#issuecomment-3467587577