FIX: Assertion and Error Message 3314 Occurs If You Try to Roll Back a Text Operation with READ UNCOMMITTED

Article ID: 319851 - View products that this article applies to.
This article was previously published under Q319851
BUG #: 102483 (SQLBUG_70) BUG #: 102483 (SHILOH)
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SYMPTOMS

SQL Server may experience the following assertion, and a 3314 error message occurs if SQL Server tries to roll back a text operation when a connection is running with the READ UNCOMMITTED transaction isolation level set on the connection: 
2002-03-14 10:31:48.95 kernel    SQL Server Assertion: File: <page.cpp>, line=2825 
Failed Assertion = 'sid >= m_slotCnt || m_slots[-sid].offset ==0'.
Additionally, on SQL Server 2000, the following assertion may also be present in the SQL Server error log:
2002-08-23 10:21:14.39 spid54    SQL Server Assertion: File: <logscan.cpp>, line=3049 
Failed Assertion = '(m_lastLSN == NullLSN) || (m_lastLSN > m_curLSN)'.

2002-03-14 10:32:03.02 spid9    Error: 3314, Severity: 21, State: 4
2002-03-14 10:32:03.02 spid9    Error while undoing logged operation in database 'myDB'. Error at log record ID (8976:897:74)..
On SQL Server 2000, the following message may accompany the 3314 error message: 
2002-08-23 10:21:14.68 spid54    Error: 9004, Severity: 23, State: 7
2002-08-23 10:21:14.68 spid54    An error occurred while processing the log for database 'myDB'..
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RESOLUTION

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
(http://support.microsoft.com/contactus/?ws=support)
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language. The English version of the SQL Server 2000 fix should have the following file attributes or later: 
   Date          Version    Size              File name    
   -----------------------------------------------------------------------

   05-SEP-2002   8.00.682   7,467,089 bytes   Sqlservr.exe  SP2-Based Fix
NOTE: The SQL Server 2000 based fix will be included in Microsoft SQL Server 2000 Service Pack 3 (SP3).

The English version of the SQL Server 7.0 fix should have the following file attributes or later: 
   Date          Version     Size              File name    
   -----------------------------------------------------------------------

   15-MAR-2002   7.00.1026   5,054,736 bytes   Sqlservr.exe  SP3-Based Fix
   14-FEB-2002   7.00.1021     586,000 bytes   Sqlsort.dll   SP3-Based Fix
   14-MAY-2002   7.00.1071   5,058,832 bytes   Sqlservr.exe  SP4-Based Fix
NOTE: Because of file dependencies, the most recent hotfix or feature that contains the files may also contain additional files.
NOTE: The fix for this bug will be included in SQL Server 2000 Service Pack 3.
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WORKAROUND

To work around the behavior, set the isolation level of the connection to READ COMMITTED by using a Transact-SQL SET statement. For example: 
SET TRANSACTION ISOLATION LEVEL READ COMMITTED
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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
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Properties

Article ID: 319851 - Last Review: October 18, 2005 - Revision: 3.5
APPLIES TO
  • Microsoft SQL Server 2000 Standard Edition
  • Microsoft SQL Server 7.0 Standard Edition
Keywords: 
kbautohotfix kbhotfixserver kbqfe kbbug kbfix kbqfe kbsqlserv2000sp3fix kbsqlserv700presp5fix KB319851
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