Symptoms

Microsoft SQL Server 2014 or SQL Server 2012 restarts when you change an extended events session. When this problem occurs, you receive the following error messages:

SqlDumpExceptionHandler: Process <process id> generated fatal exception c0000005 EXCEPTION_ACCESS_VIOLATION. SQL Server is terminating this process. Error: 3449, Severity: 21, State: 1.
SQL Server must shut down in order to recover a database (database ID 1). The database is either a user database that could not be shut down or a system database. Restart SQL Server. If the database fails to recover after another startup, repair or restore the database.

Resolution

Cumulative Update information

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

Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. We recommend that you download and install the latest cumulative updates for SQL Server:


Status

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

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