RFR: 8325937: runtime/handshake/HandshakeDirectTest.java causes "monitor end should be strictly below the frame pointer" assertion failure on AArch64

[Andrew Haley]

On Wed, 2 Oct 2024 10:39:27 GMT, Andrew Haley <aph at openjdk.org> wrote:

> > SC is stronger than acquire/release.
> 
> Yes. What we have is SC.

Just to clarify things, I would be very surprised if any pthread mutex operation were not SC, because they're the building blocks for C++ mutexes.

Hans Boehm has this historical info, 
https://hboehm.info/misc_slides/reordering.pdf

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PR Comment: https://git.openjdk.org/jdk/pull/21295#issuecomment-2388349018