[jdk11u-dev] RFR: 8268773: Improvements related to: Failed to start thread - pthread_create failed (EAGAIN)

[Basil Crow]

On Sat, 7 May 2022 07:43:08 GMT, Basil Crow <duke at openjdk.java.net> wrote:

> Hi all,
> 
> This pull request contains a backport of [JDK-8268773](https://bugs.openjdk.java.net/browse/JDK-8268773) (commit [e35005d5ce383ddd108096a3079b17cb0bcf76f1](https://github.com/openjdk/jdk/commit/e35005d5ce383ddd108096a3079b17cb0bcf76f1)) from the [openjdk/jdk](https://git.openjdk.java.net/jdk) repository.
> 
> There was a trivial merge conflict in `thread.hpp`. In addition, I had to drop the change to `Thread::is_JavaThread_protected` in `thread.cpp`, because `Thread::is_JavaThread_protected` does not exist on `jdk11u-dev`.
> 
> The commit being backported was authored by @dholmes-ora on July 15, 2021, and was reviewed by @tstuefe and @iklam.
> 
> See [JENKINS-65873](https://issues.jenkins.io/browse/JENKINS-65873) for the motivation behind this backport.
> 
> Thanks!

I do not have JBS access. Can someone please submit the following comment with the `jdk11u-fix-request` label:

> Backporting https://github.com/openjdk/jdk/commit/e35005d5ce383ddd108096a3079b17cb0bcf76f1 shows a very significant reduction of the number of occurrences of [JENKINS-65873](https://issues.jenkins.io/browse/JENKINS-65873) (0.04% instead of 0.2% over 5000-6000 builds). The patch applies after resolving a trivial merge conflict in `thread.hpp` and dropping the change to `Thread::is_JavaThread_protected` in `thread.cpp` (because `Thread::is_JavaThread_protected` does not exist on `jdk11u-dev`).

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PR: https://git.openjdk.java.net/jdk11u-dev/pull/1074