Integrated: 8320331: G1 Full GC Heap verification relies on metadata not reset before verification

[Thomas Schatzl]

On Mon, 20 Nov 2023 11:24:12 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

> Hi all,
> 
>   please review this fix to full gc to properly set `parsable_bottom` for the heap regions marked through so that "during" verification (`-XX:+VerifyDuringGC`) does not access metadata already unlinked but not yet completely purged.
> 
> The test case reproduces crashes fairly well without the patch; the new test case is run with debug VMs only purely to save testing time.
> 
> Testing: gha, test case
> 
> Thanks,
>   Thomas

This pull request has now been integrated.

Changeset: 1629a905
Author:    Thomas Schatzl <tschatzl at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/1629a9059bd2e0f07559a384be4276c7dc13eff2
Stats:     33 lines in 5 files changed: 25 ins; 0 del; 8 mod

8320331: G1 Full GC Heap verification relies on metadata not reset before verification

Reviewed-by: iwalulya, ayang

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PR: https://git.openjdk.org/jdk/pull/16733