RFR: 8295666: Linux x86 build fails after 8292591

[David Holmes]

On Wed, 19 Oct 2022 16:15:18 GMT, Boris Ulasevich <bulasevich at openjdk.org> wrote:

> I have got build failure similar to recent [Linux aarch64](https://github.com/openjdk/jdk/pull/10265) and [Linux Alpha Zero](https://github.com/openjdk/jdk/pull/10721) failures:
> 
> 
> src/hotspot/os/linux/systemMemoryBarrier_linux.cpp:65:18: error: 'SYS_membarrier' was not declared in this scope
>    return syscall(SYS_membarrier, cmd, flags, cpu_id); // cpu_id only on >= 5.10
>                   ^~~~~~~~~~~~~~ 
> 
> 
> The failure is known to be fixed by adding missing ` SYS_membarrier` definition. The raw constant 375 is taken from the `linux-libc-dev_6.0.2-1_i386.deb' cross-compilation headers:

Seems okay - and trivial. But I would have expected this to be reported weeks ago - has the linux-x86 build in GHA been failing all this time?

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Marked as reviewed by dholmes (Reviewer).

PR: https://git.openjdk.org/jdk/pull/10771