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https://issues.apache.org/jira/browse/HBASE-4278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092864#comment-13092864
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Li Pi commented on HBASE-4278:
------------------------------
oh, whoops, will resubmit patch.
> Race condition in Slab.java that occurs due to spinlock unlocking early.
> ------------------------------------------------------------------------
>
> Key: HBASE-4278
> URL: https://issues.apache.org/jira/browse/HBASE-4278
> Project: HBase
> Issue Type: Sub-task
> Reporter: Li Pi
> Assignee: Li Pi
> Fix For: 0.92.0
>
> Attachments: 4278.diff, 4278.diff
>
>
> Just a race condition in 4027. Occurs due to a spinlock that happens if the
> slab allocator is empty. When the slab allocator gets gets a slice of memory
> returned, if multiple threads are locked, both can be freed at the same time,
> leading one to throw an exception.
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