RFR: 8263476: Use reserved memory for stack guard pages [v2]

[snake66]

On Fri, 8 Aug 2025 15:17:40 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

>> Previously, we require stack-guard-pages to be committed, and mmap MAP_STACK does "lazy" commit, so we have to perform commit explicitly. Now, we switch to reserve-only stack-guard-pages, so no explicit commit is needed.
>
> Have you tested that on FreeBSD?

@tstuefe I have, and so far I can't see any negative effect of it.

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PR Review Comment: https://git.openjdk.org/jdk/pull/26571#discussion_r2275996829