Integrated: 8348909: [BACKOUT] Implement a better allocator for downcalls

[Jorn Vernee]

On Fri, 31 Jan 2025 15:01:08 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

> This reverts https://github.com/openjdk/jdk/pull/23142
> 
> See the JBS issue. It seems that the changes are occasionally causing heap corruption, potentially due to use after free, which occasionally results in corrupt malloc headers being caught on mac. This failure was observed once in about 500 runs of this test, so it is quite intermittent.
> 
> Backing this change out seems the easiest/safest to clear up the tier 1 failure, until we've had a chance to investigate the issue further.

This pull request has now been integrated.

Changeset: 77647421
Author:    Jorn Vernee <jvernee at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/77647421c5b13738f6fa145bf30cbb9dd741e164
Stats:     492 lines in 7 files changed: 18 ins; 472 del; 2 mod

8348909: [BACKOUT] Implement a better allocator for downcalls

Reviewed-by: shade, liach

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PR: https://git.openjdk.org/jdk/pull/23391