The Srv2.sys breaks when the computer responds to the SMB client in Windows Server 2012 R2

Symptoms

Consider the following scenario:

The Windows Server 2012 R2-based computer uses the server message block (SMB) 2.0 protocol over a remote direct memory access (RDMA) connection.
The connection is disconnected, or the computer uses the RDMA under a heavy load.

In this scenario, the computer sends a response unsuccessful message. Additionally, the Srv2.sys file breaks.

To resolve this issue, install update 2975719.

For more information about update 2975719, click the following article number to view the article in the Microsoft Knowledge Base:

2975719 August 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2

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

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

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