[jdk17u-dev] RFR: 8303942: os::write should write completely

[Aleksey Shipilev]

On Thu, 23 May 2024 19:33:35 GMT, Elif Aslan <duke at openjdk.org> wrote:

> This is not a clean backport. There were multiple merge conflicts related to undefined parameters and existing methods. This backport is required to address a crash observed in Amazon production. Please refer to the related [PR](https://github.com/openjdk/jdk17u-dev/pull/2281), which has already been merged.
> 
> 
> In addition to GHA Tier 1, runtime hotspot, JFR, and hotspot GC tests have been run on macOS.
> 
> 
>    TEST                                              TOTAL  PASS  FAIL ERROR
>    jtreg:test/hotspot/jtreg:hotspot_runtime            880   880     0     0
> ==============================
> TEST SUCCESS
> 
> Finished building target 'test' in configuration 'macosx-x86_64-server-release'

There is a P2 regression from this fix: [JDK-8316468](https://bugs.openjdk.org/browse/JDK-8316468). It needs to go in this PR as well to avoid non-atomic breakage of 17u-dev.

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PR Comment: https://git.openjdk.org/jdk17u-dev/pull/2490#issuecomment-2132935645