Article ID: 832977 - Last Review: November 2, 2007 - Revision: 3.6

FIX: The DBCC PSS Command may cause access violations and 17805 errors in SQL Server 2000

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SYMPTOMS

When you run the undocumented DBCC PSS or DBCC STACKDUMP command while the server is processing the input buffer for an incoming query, a variety of access violations and 17805 errors may occur. This problem occurs more frequently when an application submits a large remote procedure call (RPC) input buffer, especially when the RPC input buffer is greater than or equal to 8 KB. However, this problem may occur even if the input buffer is less than 4 KB. The following 17805 error message is logged in the error log:

Error: 17805, Severity: 20, State: 3
Invalid buffer received from client..

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CAUSE

This problem occurs because of a bug that has been discovered in the undocumented DBCC PSS command that can cause access violations in all versions of Microsoft SQL Server under certain circumstances. This command is used by the following utilities, but it has been corrected:

Microsoft SQL Server 2000 Best Practices Analyzer 1.0 Beta
Microsoft SQL Server 2000 blocking detection script
PSSDIAG For more information about the PSSDIAG utility, click the following article number to view the article in the Microsoft Knowledge Base:
830232 (http://support.microsoft.com/kb/830232/ ) PSSDIAG data collection utility

See the "Workaround" section in this article for information about how to obtain the updated utilities.

Note This problem does not occur because of these utilities; the problem occurs because of the DBCC PSS command.

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RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Microsoft SQL Server 2000. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

290211 (http://support.microsoft.com/kb/290211/ ) How to obtain the latest SQL Server 2000 service pack

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Hotfix information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time   Version            Size    File name
   --------------------------------------------------------------
   31-May-2003  18:45  2000.80.818.0      78,400  Console.exe      
   28-Oct-2003  04:21  2000.80.873.0     315,968  Custtask.dll     
   02-Oct-2003  20:59  2000.80.867.0      33,340  Dbmslpcn.dll     
   25-Apr-2003  02:12                    786,432  Distmdl.ldf
   25-Apr-2003  02:12                  2,359,296  Distmdl.mdf
   30-Jan-2003  01:55                        180  Drop_repl_hotfix.sql
   12-Sep-2003  03:26  2000.80.859.0   1,905,216  Dtspkg.dll       
   26-Aug-2003  20:16  2000.80.854.0     528,960  Dtspump.dll      
   23-Jun-2003  22:40  2000.80.837.0   1,557,052  Dtsui.dll        
   23-Jun-2003  22:40  2000.80.837.0     639,552  Dtswiz.dll       
   24-Apr-2003  02:51                    747,927  Instdist.sql
   03-May-2003  01:56                      1,581  Inst_repl_hotfix.sql
   08-Feb-2003  06:40  2000.80.765.0      90,692  Msgprox.dll      
   01-Apr-2003  02:07                      1,873  Odsole.sql
   05-Apr-2003  01:46  2000.80.800.0      62,024  Odsole70.dll     
   07-May-2003  20:41  2000.80.819.0      25,144  Opends60.dll     
   02-Apr-2003  21:48  2000.80.796.0      57,904  Osql.exe         
   02-Apr-2003  23:15  2000.80.797.0     279,104  Pfutil80.dll     
   04-Aug-2003  18:17                    550,780  Procsyst.sql
   12-Sep-2003  00:37                     12,305  Qfe469315.sql
   22-May-2003  22:57                     19,195  Qfe469571.sql
   06-Sep-2003  01:36                  1,090,932  Replmerg.sql
   06-Sep-2003  07:18  2000.80.858.0     221,768  Replprov.dll     
   06-Sep-2003  07:18  2000.80.858.0     307,784  Replrec.dll      
   06-Sep-2003  00:00                  1,087,150  Replsys.sql
   13-Aug-2003  16:28                    986,603  Repltran.sql
   22-Oct-2003  00:08  2000.80.871.0      57,916  Semnt.dll        
   29-Jul-2003  20:13  2000.80.819.0     492,096  Semobj.dll       
   31-May-2003  18:27  2000.80.818.0     172,032  Semobj.rll
   05-Aug-2003  21:06                    127,884  Sp3_serv_uni.sql
   01-Jun-2003  01:01  2000.80.818.0   4,215,360  Sqldmo.dll       
   07-Apr-2003  17:44                     25,172  Sqldumper.exe    
   19-Mar-2003  18:20  2000.80.789.0      28,672  Sqlevn70.rll
   27-Sep-2003  04:42  2000.80.865.0     180,792  Sqlmap70.dll     
   03-Sep-2003  02:56  2000.80.857.0     188,992  Sqlmmc.dll       
   02-Sep-2003  23:03  2000.80.857.0     479,232  Sqlmmc.rll
   22-Oct-2003  00:08  2000.80.871.0     401,984  Sqlqry.dll       
   08-Feb-2003  06:40  2000.80.765.0      57,920  Sqlrepss.dll     
   25-Nov-2003  22:58  2000.80.879.0   7,606,353  Sqlservr.exe     
   25-Jul-2003  21:44  2000.80.845.0     590,396  Sqlsort.dll      
   08-Feb-2003  06:40  2000.80.765.0      45,644  Sqlvdi.dll       
   02-Oct-2003  20:59  2000.80.867.0      33,340  Ssmslpcn.dll     
   01-Jun-2003  01:01  2000.80.818.0      82,492  Ssnetlib.dll     
   01-Jun-2003  01:01  2000.80.818.0      25,148  Ssnmpn70.dll     
   28-Oct-2003  04:21  2000.80.873.0     123,456  Stardds.dll      
   01-Jun-2003  01:01  2000.80.818.0     158,240  Svrnetcn.dll     
   31-May-2003  18:59  2000.80.818.0      76,416  Svrnetcn.exe     
   30-Apr-2003  23:52  2000.80.816.0      45,132  Ums.dll          
   02-Jul-2003  00:19  2000.80.834.0      98,816  Xpweb70.dll

Note Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.

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WORKAROUND

Until a fix that addresses the problem with the DBCC PSS command is released, Microsoft recommends that you not use this command on production instances of SQL Server. The use of the DBCC PSS command has been removed from these utilities. To work around this problem, use the following information (depending on the utility that you are using):

If you are using the SQL Server 2000 Best Practices Analyzer 1.0 Beta, download the latest version immediately. To do so, visit the following Microsoft Web site: http://www.microsoft.com/downloads/details.aspx?amp;displaylang=en&familyid=B352EB1F-D3CA-44EE-893E-9E07339C1F22&displaylang=en (http://www.microsoft.com/downloads/details.aspx?FamilyId=B352EB1F-D3CA-44EE-893E-9E07339C1F22&displaylang=en)
If you are using the SQL Server 2000 blocking detection script, obtain the updated script from the following Microsoft Knowledge Base article:
271509 (http://support.microsoft.com/kb/271509/ ) How to monitor SQL Server 2000 blocking
If you are using the PSSDIAG utility, contact Microsoft Product Support Services (PSS) to obtain a version of the tool that does not call the DBCC PSS command. For information about how to contact PSS, visit to the following Microsoft Web site: http://support.microsoft.com/default.aspx?pr=cntactms (http://support.microsoft.com/default.aspx?pr=cntactms)

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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. This problem was first corrected in Microsoft SQL Server 2000 Service Pack 4.

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