[jdk21u-dev] RFR: 8315373: Change VirtualThread to unmount after freezing, re-mount before thawing

[Andrew John Hughes]

On Mon, 19 Feb 2024 13:26:41 GMT, Severin Gehwolf <sgehwolf at openjdk.org> wrote:

> So in a nutshell, the question was whether to allow for 21.0.3 or push to 21.0.4. It'll have about 2 months before the release in April (21.0.3). 

It's five weeks until code freeze for 21.0.3 and so five weeks to both find any issues and get any follow-on fixes in. The release happens on 2024-04-16 so in two months time it will be out.

> If it was pushed to 21.0.4 we'd have some more testing in the `jdk21u-dev` tree, but to me the first merge to `jdk21u`
> matters. Going by that, we'd have similarly about 2 months of testing with public EA builds. So the characteristics don't change much. Therefore, approved for `21.0.3`.

That would be a full two months. Even going from the initial build promotion, you've lost three weeks of development with 21.0.3 compared with 21.0.4 (the fourth build promotion is due to happen tomorrow).

If you want this in 21.0.3, I think it's imperative it gets merged as soon as possible to maximise the time available, ideally today.  Personally, I would still prefer 21.0.4.

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/245#issuecomment-1952600728