RFR: 8369622: GlobalChunkPoolMutex is recursively locked during error handling

[David Holmes]

On Fri, 17 Oct 2025 17:04:58 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> This change disables recursive locking for the ChunkPoolLocker during error handling for NMT callers.  The patch is written by Johan as an alternative to supporting another recursive locker for this lock.
> Tested with tier1-4, tier5 on aarch64 (product and debug).

This is the same kind of strategy used by ZGC. It seems a good idiom to use for dealing with error reporting.

Looks good.

Thanks

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Marked as reviewed by dholmes (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/27869#pullrequestreview-3354680283