Symptoms
In Microsoft SQL Server 2008, an access violation occurs intermittently during message processing for service broker,and the session may be disconnected. When this problem occurs, a mini-dump file is generated in the SQL Server log folder, and the following error message is logged in the SQL Server log file:

<Date><Time> spid18s***Stack Dump being sent to <drive>:\Program Files\Microsoft SQL Server\MSSQL10.MSSQLSERVER\MSSQL\LOG\SQLDump0005.txt
<Date><Time> spid18sSqlDumpExceptionHandler: Process 18 generated fatal exception c0000005 EXCEPTION_ACCESS_VIOLATION. SQL Server is terminating this process.
<Date><Time> spid18s* *******************************************************************************
<Date><Time> spid18s*
<Date><Time> spid18s* BEGIN STACK DUMP:
<Date><Time> spid18s*<Date><Time> spid <spid>
<Date><Time> spid18s*
<Date><Time> spid18s*
<Date><Time> spid18s*Exception Address = 0000000002164AC2 Module(sqlservr+0000000001164AC2)
<Date><Time> spid18s*Exception Code= c0000005 EXCEPTION_ACCESS_VIOLATION
<Date><Time> spid18s*Access Violation occurred reading address 0000000000000000
<Date><Time> spid18sStack Signature for the dump is 0×00000001CCC51BCC
<Date><Time> spid18sExternal dump process return code 0×20000001.External dump process returned no errors.
<Date><Time> spid15sThe Service Broker protocol transport has stopped listening for connections.
<Date><Time> spid15sService Broker manager has shut down.
Resolution
The fix for this issue was first released in Cumulative Update5 for SQL Server 2008 Service Pack 1. For more information about this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
975977?(http://support.microsoft.com/kb/975977/LN/) Cumulative update package 5 for SQL Server 2008 Service Pack 1Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 fix release. Microsoft recommends that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
970365?(http://support.microsoft.com/kb/970365/LN/) The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 1 was releasedMicrosoft SQL Server 2008hotfixes are created for specific SQL Server service packs. You must apply a SQL Server 2008 Service Pack 1 hotfix to an installation of SQL Server 2008 Service Pack 1. By default, any hotfix that is provided in a SQL Server service pack is included in the next SQL Server service pack.