FIX: When an ADO.NET-connected application uses the System.Data.SqlClient namespace, the application may experience high CPU use and may stop responding (912731)


The information in this article applies to:

  • Microsoft .NET Framework 2.0

SYMPTOMS

When a Microsoft ADO.NET-connected application uses the System.Data.SqlClient namespace, the application may experience high CPU use. Also, the application may stop responding.

This problem may occur if the following conditions are true:
  • The ADO.NET-connected application is in a high-stress scenario.
  • The ADO.NET-connected application has sent an attention signal to Microsoft SQL Server. (The attention signal is usually sent in response to a query time-out.)
  • The client connection shuts down before it receives the acknowledgement of the attention signal from SQL Server.

RESOLUTION

To resolve this issue, download the appropriate file for your computer:

For an x86-based computer

The following file is available for download from the Microsoft Download Center:
http://download.microsoft.com/download/2/C/5/2C5BCDC9-3241-443A-9F96-4E0B0EDFA727/NDP20-KB916002-X86.exe

For an x64-based computer

The following file is available for download from the Microsoft Download Center:
http://download.microsoft.com/download/D/3/9/D39C79DF-4158-45DF-9031-92C52AB0ED19/NDP20-KB916002-X64.exe

For an Itanium-based computer

The following file is available for download from the Microsoft Download Center:
http://download.microsoft.com/download/0/0/3/00392DD3-5B4F-4D99-94E8-6827B8F8D7EF/NDP20-KB916002-IA64.exe For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services

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STATUS

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

MORE INFORMATION

For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:

912151 FIX: The connection may time out before the first try to connect to the failover partner server when you try to connect to a SQL Server 2005 mirrored database by using an ADO.NET 2.0-based application

912732 FIX: An error may occur when you start a new transaction in ADO.NET 2.0 on a connection that is open to a SQL Server 2005 database

913177 FIX: You may receive an error message when an ADO.NET-connected application uses the SqlBulkCopy class

913764 FIX: Error message when you try to run a UNION ALL query or to call the DeriveParameters method: "Internal connection fatal error"

913765 FIX: An SqlException exception may occur when you call one of the Execute methods on the instance of the SqlCommand class in an ADO.NET 2.0 application

913766 FIX: A DateTime column that does not contain any data is incorrectly represented by a DateTime.MinValue field when a .NET Framework 2.0 DataSet object is deserialized on a client computer

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

Modification Type:MajorLast Reviewed:10/10/2006
Keywords:kbBug kbfix kbtshoot kbQFE kbpubtypekc KB912731 kbAudITPRO kbAudDeveloper
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