[jdk21u-dev] RFR: 8369946: Bytecode rewriting causes Java heap corruption on PPC

[Martin Doerr]

On Sat, 25 Oct 2025 18:47:34 GMT, Goetz Lindenmaier <goetz at openjdk.org> wrote:

> Hi @TheRealMDoerr this is brand new, and the aarch change referenced is not yet backported, either. Should we really proceed? Or rather await the April update?

The memory barriers are needed for correctness. The risk is low because only memory barriers are added and they don't break anything. The interpreter performance impact is not very high. An aarch64 fix is also in preparation and I assume that we want all platform fixes ASAP.

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/2384#issuecomment-3450686308