RFR: 8266453: Shenandoah: Some tests failed on MacOSX/AArch64

[Zhengyu Gu]

On Mon, 3 May 2021 19:24:19 GMT, Roman Kennke <rkennke at openjdk.org> wrote:

> Err, what does it do?
> I'd prefer if the commit message describes what the fix does, not what the failure is.

Added line disables write protections, before nmethod barrier can patch nmethod code (see  https://developer.apple.com/documentation/apple-silicon/porting-just-in-time-compilers-to-apple-silicon for details)

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PR: https://git.openjdk.java.net/jdk/pull/3843