RFR: 8261660: AArch64: Race condition in stub code generation for LSE Atomics

Fri Feb 12 16:45:40 UTC 2021

On Fri, 12 Feb 2021 16:27:09 GMT, Andrew Haley <aph at openjdk.org> wrote:

> Temporary fix for race condition.
> 
> There's a narrow race condition in the code which generates LSE Atomic stubs and enables them for use by the runtime. DIsable LSE stub generation for now.

Looks okay, but I have to wonder if the rest of the template changes
in src/hotspot/os_cpu/linux_aarch64/atomic_linux_aarch64.hpp
that were made by https://bugs.openjdk.java.net/browse/JDK-8261027
also need to be backed out? Please clarify.

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Changes requested by dcubed (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/2553