GitHub user kiszk opened a pull request:
https://github.com/apache/spark/pull/17509
[BACKPORT-2.1][SPARK-19999][core] Workaround JDK-8165231 to identify PPC64
architectures as supporting unaligned access
## What changes were proposed in this pull request?
This PR is backport of #17472 to Spark 2.1
java.nio.Bits.unaligned() does not return true for the ppc64le arch.
see
[https://bugs.openjdk.java.net/browse/JDK-8165231](https://bugs.openjdk.java.net/browse/JDK-8165231)
Check architecture in Platform.java
## How was this patch tested?
unit test
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kiszk/spark branch-2.1
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/17509.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #17509
----
commit 5c9319727fe60e567e28870d2fa47a9cc6578199
Author: Kazuaki Ishizaki <[email protected]>
Date: 2017-04-02T07:07:19Z
backport #17472
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