Herman van Hövell created SPARK-38675:
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             Summary: Race condition in BlockInfoManager during unlock
                 Key: SPARK-38675
                 URL: https://issues.apache.org/jira/browse/SPARK-38675
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 3.3.0
            Reporter: Herman van Hövell
            Assignee: Herman van Hövell


There is a race condition between unlock and releaseAllLocksForTask in the 
block manager. This can lead to negative reader counts (which trip an 
assertion).



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