FIX: A memory assertion failure occurs, and the server can't make new connections in SQL Server

Applies to: SQL Server 2017 DeveloperSQL Server 2017 EnterpriseSQL Server 2017 Enterprise Core More

Symptoms


When you run an instance of Microsoft SQL Server, you receive the following memory assertion failure:

After the memory assertion failure, the server is unable to make any new connections. Additionally, the server deadlocks the scheduler, and the instance of SQL Server has to be restarted.

Resolution


This fix is included in the following updates for SQL Server:

Cumulative Update 7 for SQL Server 2017

Cumulative Update 1 for SQL Server 2016 Service Pack 2

Note This fix addresses only the server deadlock issue that leaves the server unable to make any new connections.

Status


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

References


Learn about the standard terminology Microsoft uses to describe software updates.