Integrated: 8324983: race in CompileBroker::possibly_add_compiler_threads

[Tom Rodriguez]

On Wed, 31 Jan 2024 21:35:05 GMT, Tom Rodriguez <never at openjdk.org> wrote:

> The number of active compiler threads is decremented before the compiler thread has actually activated so possibly_add_compiler_thread might start a new thread on the existing JavaThread.  This adds a check that it's really exiting before proceeding and some new guarantees that ensure threads aren't started on top running threads.

This pull request has now been integrated.

Changeset: 19936526
Author:    Tom Rodriguez <never at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/1993652653eab8dd7ce2221a97cd2e401f2dcf56
Stats:     12 lines in 2 files changed: 10 ins; 1 del; 1 mod

8324983: race in CompileBroker::possibly_add_compiler_threads

Reviewed-by: kvn, dholmes, dnsimon

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PR: https://git.openjdk.org/jdk/pull/17662