Public bug reported:
== Comment: #0 - Gustavo Bueno Romero <grom...@br.ibm.com> - 2017-03-30
08:16:11 ==
---Problem Description---
Some open sources (such as Spark 2.0) check java.nio.Bits.unaligned() to
recognize support of unaligned memory access in the platform but ppc64 arch is
not included although it supports it
---uname output---
Linux gromero16 4.4.0-67-generic #88-Ubuntu SMP Wed Mar 8 16:33:13 UTC 2017
ppc64le ppc64le ppc64le GNU/Linux
Machine Type = not relevant
---Debugger---
A debugger is not configured
---Steps to Reproduce---
The following test-case returns "false" but must return "true" if the problem
is fixed:
import java.lang.reflect.Field;
public class UnalignedTest {
public static void main(String[] args) throws Exception {
Class clazz = Class.forName("java.nio.DirectByteBuffer");
Field field = clazz.getDeclaredField("unaligned");
field.setAccessible(true);
System.out.println(field.getBoolean(null));
}
}
Contact Information = grom...@br.ibm.com
Userspace tool common name: java
The userspace tool has the following bit modes: 64-bit
Userspace rpm: 8u121-b13-0ubuntu1.16.04.2
Userspace tool obtained from project website: na
*Additional Instructions for grom...@br.ibm.com:
-Attach ltrace and strace of userspace application.
== Comment: #1 - Gustavo Bueno Romero <grom...@br.ibm.com> - 2017-03-30
08:18:20 ==
Dear maintainer, please consider applying the fix that is already upstream on
8u:
https://bugs.openjdk.java.net/browse/JDK-8165231
** Affects: openjdk-8 (Ubuntu)
Importance: Undecided
Assignee: Taco Screen team (taco-screen-team)
Status: New
** Tags: architecture-ppc64 bugnameltc-153037 severity-medium
targetmilestone-inin16043
** Tags added: architecture-ppc64 bugnameltc-153037 severity-medium
targetmilestone-inin16043
** Changed in: ubuntu
Assignee: (unassigned) => Taco Screen team (taco-screen-team)
** Package changed: ubuntu => openjdk-8 (Ubuntu)
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https://bugs.launchpad.net/bugs/1677612
Title:
java.nio.Bits.unaligned() doesn't return true on ppc
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