[8u-dev] RFA: 8201509: Zero: S390 31bit atomic_copy64 inline assembler is wrong

[Rob McKenna]

Approved

    -Rob

On 26/06/18 16:37, Severin Gehwolf wrote:
> Hi,
> 
> Please approve this Zero-only JDK 8u backport which fixes random SEGVs
> on S390 (31 bit). We have been using this patch for months in Fedora
> and would like to get this upstream. The patch is in JDK 10u and in JDK
> 11. The JDK 11 patch applies with minor patch context changes post
> path-unshuffeling and after JDK-8185723[1] and JDK-8186461[2] have been
> applied.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8201509
> webrev: http://cr.openjdk.java.net/~sgehwolf/webrevs/JDK-8201509/webrev.01/
> Original review-thread:
> http://mail.openjdk.java.net/pipermail/hotspot-dev/2018-April/031626.html
> 
> Thanks,
> Severin
> 
> [1] http://mail.openjdk.java.net/pipermail/jdk8u-dev/2018-June/007579.html
> [2] http://mail.openjdk.java.net/pipermail/jdk8u-dev/2018-June/007580.html