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https://issues.apache.org/jira/browse/SPARK-12181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Yu updated SPARK-12181:
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Attachment: spark-12181.txt
> Check Cached unaligned-access capability before using Unsafe
> ------------------------------------------------------------
>
> Key: SPARK-12181
> URL: https://issues.apache.org/jira/browse/SPARK-12181
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Reporter: Ted Yu
> Attachments: spark-12181.txt
>
>
> For MemoryMode.OFF_HEAP, Unsafe.getInt etc. are used with no restriction.
> However, the Oracle implementation uses these methods only if the class
> variable unaligned (commented as "Cached unaligned-access capability") is
> true, which seems to be calculated whether the architecture is i386, x86,
> amd64, or x86_64.
> I think we should perform similar check for the use of Unsafe.
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