FIX: Parallel deadlock or self-deadlock occurs when you run a query that results in parallelism in SQL Server

Applies to: SQL Server 2012 EnterpriseSQL Server 2012 DeveloperSQL Server 2012 Standard More

This issue occurs when parallelism is allowed at server or query level.

(Process ID 85) was deadlocked on thread | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.

Resolution


The issue was first fixed in the following cumulative update of SQL Server.

Cumulative Update 4 for SQL Server 2014

Cumulative Update 1 for SQL Server 2012 SP2

Cumulative Update 10 for SQL Server 2012 SP1

Status


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.