This access violation is triggered when you use transparent data encryption (TDE) together with the buffer pool extension (BPE) feature in an instance of SQL Server 2012.
Service pack information for SQL Server 2012
To fix this issue, get Service Pack 3 for SQL Server 2012:
For more information about SQL Server 2012 Service Pack 3 (SP3), see bugs that are fixed in SQL Server 2012 Service Pack 3.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.