Integrated: 8328168: Epsilon: Premature OOM when allocating object larger than uncommitted heap size

[Guoxiong Li]

On Thu, 14 Mar 2024 14:06:45 GMT, Guoxiong Li <gli at openjdk.org> wrote:

> Hi all,
> 
> When an object size meets the following three conditions, the allocation will fail unexpectedly.
> 
> 1. `object_size` > `uncommitted_size`
> 2. `object_size` > `committed_but_unused_size`
> 3. `object_size` < `unused_size` (`unused_size` equals `uncommitted_size + committed_but_unused_size`)
> 
> Please read the newly added test of this patch for the concrete case.
> 
> Thanks for taking the time to review.
> 
> Best Regrads,
> -- Guoxiong

This pull request has now been integrated.

Changeset: 7baec662
Author:    Guoxiong Li <gli at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/7baec6622254fc21e315b974a213605a7605daac
Stats:     51 lines in 2 files changed: 47 ins; 0 del; 4 mod

8328168: Epsilon: Premature OOM when allocating object larger than uncommitted heap size

Reviewed-by: shade, tschatzl

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PR: https://git.openjdk.org/jdk/pull/18304