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Date: Mon, 29 Aug 2011 14:20:38 +0000 (UTC)
From: "Li Pi (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
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 <1971071269.3259.1314627638494.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] [Created] (HBASE-4278) Race condition in Slab.java that
 occurs due to spinlock unlocking early.
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Race condition in Slab.java that occurs due to spinlock unlocking early.
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                 Key: HBASE-4278
                 URL: https://issues.apache.org/jira/browse/HBASE-4278
             Project: HBase
          Issue Type: Sub-task
            Reporter: Li Pi
            Assignee: Li Pi


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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