Microsoft KB Archive/892840

= FIX: 17883 errors may be written to the SQL Server error log when you run a query that generates many floating point exception errors in SQL Server 2000 =

Article ID: 892840

Article Last Modified on 11/2/2007

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APPLIES TO


 * Microsoft SQL Server 2000 Desktop Engine (Windows)
 * Microsoft SQL Server 2000 Developer Edition
 * Microsoft SQL Server 2000 Enterprise Edition
 * Microsoft SQL Server 2000 Personal Edition
 * Microsoft SQL Server 2000 Standard Edition
 * Microsoft SQL Server 2000 Workgroup Edition
 * Microsoft SQL Server 2000 Developer Edition
 * Microsoft SQL Server 2000 Enterprise Edition 64-bit

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Bug #: 473639 (SQL Server 8.0)

Bug #: 473673 (SQL Server 8.0)



''Microsoft distributes Microsoft SQL Server 2000 fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2000 fix release.''



SUMMARY
This article describes the following about this hotfix release:
 * The issues that are fixed by this hotfix package.
 * The prerequisites for installing the hotfix package.
 * Whether you must restart the computer after you install the hotfix package.
 * Whether the hotfix package is replaced by any other hotfix package.
 * Whether you must make any registry changes.
 * The files that are contained in the hotfix package.



SYMPTOMS
In Microsoft SQL Server 2000, when you run a query that generates many floating point exception errors, you may experience slow performance and query timeouts when you run other queries. This problem typically occurs when more than 1,000 floating point exceptions are generated.

Additionally, 17883 error reports that are similar to the following may be written to the SQL Server 2000 error log:

Error: 17883, Severity: 1, State: 0

Process 51:0 (dbc) UMS Context 0x018DA930 appears to be non-yielding on Scheduler 0.

You may also receive one or more error messages that are similar to the following on a computer where a 64-bit version of SQL Server 2000 is installed:

Server: Msg 3628, Level 16, State 1, Line 2

A floating point exception occurred in the user process. Current transaction is canceled

For a list of all publicly released SQL Server 2000 Post-Service Pack 3a hotfixes, see the following article in the Microsoft Knowledge Base:

810185 SQL Server 2000 hotfix update for SQL Server 2000 Service Pack 3 and 3a



CAUSE
This problem occurs because the thread that generates the floating point exceptions does not yield the User Mode Schedulers (UMS) scheduler during floating point exception handling.



Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft SQL Server 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
You must have Microsoft SQL Server 2000 Service Pack 3 (SP3) installed to apply this hotfix. For more information about how to obtain SQL Server 2000 Service Pack 3, click the following article number to view the article in the Microsoft Knowledge Base:

290211 How to obtain the latest SQL Server 2000 service pack

Note If you install Microsoft SQL Server Service Pack 4 (SP4), you must obtain a post-SP4 hotfix to have this fix re-applied.

Restart information
You do not have to restart the computer after you apply this hotfix.

Registry information
You do not have to make changes to the registry.

Hotfix file information
This hotfix contains only those files that are required to correct the issues that this article lists. This hotfix may not contain all the files that you must have to fully update a product to the latest build.

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.

SQL Server 2000 32-bit versions
  Date         Time   Version         Size        File name 10-Feb-2005 16:59  2000.80.1007.0     664,128  Autoplt.dll 10-Feb-2005 16:59  2000.80.1007.0      78,400  Console.exe 10-Feb-2005 16:59  2000.80.1007.0     332,352  Ctasksui.dll 10-Feb-2005 16:59  2000.80.1007.0     315,968  Custtask.dll 10-Feb-2005 16:59  2000.80.1007.0      33,340  Dbmslpcn.dll 31-Dec-2004 18:31                     786,432  Distmdl.ldf 31-Dec-2004 18:31                   2,359,296  Distmdl.mdf 31-Dec-2004 18:31                         180  Drop_repl_hotfix.sql 10-Feb-2005 16:59  2000.80.1007.0   1,905,216  Dtspkg.dll 10-Feb-2005 16:59  2000.80.1007.0     528,960  Dtspump.dll 10-Feb-2005 16:59  2000.80.1007.0   1,557,052  Dtsui.dll 10-Feb-2005 16:59  2000.80.1007.0     639,552  Dtswiz.dll 31-Dec-2004 18:31                     747,927  Instdist.sql 31-Dec-2004 18:31                       1,581  Inst_repl_hotfix.sql 10-Feb-2005 16:59  2000.80.1007.0     352,828  Isqlw.exe 10-Feb-2005 16:59  2000.80.1007.0      82,492  Itwiz.exe 10-Feb-2005 16:59  2000.80.1007.0      90,692  Msgprox.dll 31-Dec-2004 18:16  8.11.41022.0       226,304  Mssdi98.dll 10-Feb-2005 16:59  2000.80.1007.0      62,024  Odsole70.dll 10-Feb-2005 17:00  2000.80.1007.0      25,144  Opends60.dll 10-Feb-2005 17:03                      82,944  Opends60.pdb 10-Feb-2005 16:59  2000.80.1007.0      57,904  Osql.exe 10-Feb-2005 16:59  2000.80.1007.0     279,104  Pfutil80.dll 01-Feb-2005 00:46                     551,012  Procsyst.sql 31-Dec-2004 18:31                      12,305  Qfe469315.sql 31-Dec-2004 18:31                      19,195  Qfe469571.sql 31-Dec-2004 18:31                       5,157  Qfe472197.sql 10-Feb-2005 16:59  2000.80.1007.0     143,940  Qrdrsvc.exe 10-Feb-2005 17:44                   1,136,160  Replmerg.sql 10-Feb-2005 16:59  2000.80.1007.0     221,768  Replprov.dll 10-Feb-2005 16:59  2000.80.1007.0     307,784  Replrec.dll 10-Feb-2005 01:56  2000.80.1007.0     159,813  Replres.rll 31-Dec-2004 18:31                   1,088,240  Replsys.sql 14-Jan-2005 00:05                     986,746  Repltran.sql 31-Dec-2004 17:49                          55  Repl_uninstall.sql 10-Feb-2005 16:59  2000.80.1007.0     287,304  Rinitcom.dll 10-Feb-2005 17:00  2000.80.1007.0      78,416  Sdiclnt.dll 10-Feb-2005 17:00  2000.80.1007.0      66,112  Semmap.dll 10-Feb-2005 17:00  2000.80.1007.0      57,916  Semnt.dll 10-Feb-2005 17:00  2000.80.1007.0     492,096  Semobj.dll 10-Feb-2005 02:37  2000.80.1007.0     172,032  Semobj.rll 10-Feb-2005 16:59  2000.80.1007.0      53,832  Snapshot.exe 01-Feb-2005 00:46                     125,540  Sp3_serv_uni.sql 10-Feb-2005 16:58  2000.80.1007.0      28,672  Sqlagent.dll 10-Feb-2005 16:59  2000.80.1007.0     311,872  Sqlagent.exe 10-Feb-2005 16:58  2000.80.1007.0     168,001  Sqlakw32.dll 10-Feb-2005 17:00  2000.80.1007.0      33,344  Sqlctr80.dll 10-Feb-2005 17:00  2000.80.1007.0   4,215,360  Sqldmo.dll 10-Feb-2005 16:59                      25,172  Sqldumper.exe 10-Feb-2005 01:45  2000.80.1007.0      28,672  Sqlevn70.rll 10-Feb-2005 16:59  2000.80.1007.0     156,224  Sqlmaint.exe 10-Feb-2005 17:00  2000.80.1007.0     180,792  Sqlmap70.dll 10-Feb-2005 17:00  2000.80.1007.0     188,992  Sqlmmc.dll 10-Feb-2005 02:44  2000.80.1007.0     479,232  Sqlmmc.rll 10-Feb-2005 17:00  2000.80.1007.0     401,984  Sqlqry.dll 10-Feb-2005 17:00  2000.80.1007.0      57,920  Sqlrepss.dll 10-Feb-2005 17:00  2000.80.1007.0   7,721,041  Sqlservr.exe 10-Feb-2005 17:02                  13,345,792  Sqlservr.pdb 10-Feb-2005 17:00  2000.80.1007.0     590,396  Sqlsort.dll 10-Feb-2005 17:00  2000.80.1007.0      45,644  Sqlvdi.dll 10-Feb-2005 17:00  2000.80.1007.0     106,588  Sqsrvres.dll 10-Feb-2005 17:00  2000.80.1007.0      33,340  Ssmsgnet.dll 10-Feb-2005 17:00  2000.80.1007.0      33,340  Ssmslpcn.dll 10-Feb-2005 17:00  2000.80.1007.0      33,340  Ssmsqlgc.dll 10-Feb-2005 17:00  2000.80.1007.0      82,492  Ssnetlib.dll 10-Feb-2005 17:00  2000.80.1007.0      25,148  Ssnmpn70.dll 10-Feb-2005 17:00  2000.80.1007.0     123,456  Stardds.dll 10-Feb-2005 17:00  2000.80.1007.0     158,240  Svrnetcn.dll 10-Feb-2005 16:59  2000.80.1007.0      76,416  Svrnetcn.exe 10-Feb-2005 17:00  2000.80.1007.0      49,228  Ums.dll 10-Feb-2005 17:03                     132,096  Ums.pdb 10-Feb-2005 17:00  2000.80.1007.0      74,304  Xplog70.dll 10-Feb-2005 17:00  2000.80.1007.0      98,872  Xpweb70.dll

SQL Server 2000 64-bit version
  Date         Time   Version         Size        File name -  15-Mar-2005  02:06  2000.80.1007.0      56,832  Dbmslpcn.dll 15-Mar-2005 02:07                     786,432  Distmdl.ldf 15-Mar-2005 02:07                   2,359,296  Distmdl.mdf 15-Mar-2005 02:07                     747,927  Instdist.sql 15-Mar-2005 02:07  2000.80.1007.0     185,856  Msgprox.dll 15-Mar-2005 02:07  8.11.41022.0       742,912  Mssdi98.dll 15-Mar-2005 02:06  2000.80.1007.0     151,040  Odsole70.dll 15-Mar-2005 02:06  2000.80.1007.0      27,136  Opends60.dll 15-Mar-2005 02:06                      44,032  Opends60.pdb 15-Mar-2005 02:06  2000.80.1007.0     148,992  Osql.exe 15-Mar-2005 02:06                     551,012  Procsyst.sql 15-Mar-2005 02:06                     551,012  Procsyst.sql 15-Mar-2005 02:07  2000.80.1007.0     353,280  Qrdrsvc.exe 15-Mar-2005 02:06                   1,136,160  Replmerg.sql 15-Mar-2005 02:06                   1,136,160  Replmerg.sql 15-Mar-2005 02:07  2000.80.1007.0     534,528  Replprov.dll 15-Mar-2005 02:07  2000.80.1007.0     534,528  Replprov2.dll 15-Mar-2005 02:07  2000.80.1007.0     769,024  Replrec.dll 15-Mar-2005 02:07  2000.80.1007.0     769,024  Replrec2.dll 15-Mar-2005 02:07  2000.80.1007.0     146,432  Replres.rll 15-Mar-2005 02:07  2000.80.1007.0     146,432  Replres2.rll 15-Mar-2005 02:06                   1,088,240  Replsys.sql 15-Mar-2005 02:06                   1,088,240  Replsys.sql 15-Mar-2005 02:06                     986,746  Repltran.sql 15-Mar-2005 02:06                     986,746  Repltran.sql 15-Mar-2005 02:07  2000.80.1007.0     650,240  Rinitcom.dll 15-Mar-2005 02:06  2000.80.1007.0     160,768  Semmap.dll 15-Mar-2005 02:06  2000.80.1007.0      66,112  Semmap.dll 15-Mar-2005 02:07  2000.80.1007.0     160,768  Semmap.dll 15-Mar-2005 02:06  2000.80.1007.0     132,608  Semnt.dll 15-Mar-2005 02:07  2000.80.1007.0     132,608  Semnt.dll 15-Mar-2005 02:07  2000.80.1007.0      88,576  Snapshot.exe 15-Mar-2005 02:06  2000.80.1007.0      10,240  Sqlagent.dll 15-Mar-2005 02:06  2000.80.1007.0   1,055,232  Sqlagent.exe 15-Mar-2005 02:06  2000.80.1007.0      90,112  Sqlboot.dll 15-Mar-2005 02:07  2000.80.1007.0      90,112  Sqlboot.dll 15-Mar-2005 02:06  2000.80.1007.0      32,256  Sqlctr80.dll 15-Mar-2005 02:06  2000.80.1007.0   4,215,360  Sqldmo.dll 15-Mar-2005 02:06  2000.80.1007.0  13,845,504  Sqldmo.dll 15-Mar-2005 02:07                      39,936  Sqldumper.exe 15-Mar-2005 02:07                      39,936  Sqldumper.exe 15-Mar-2005 02:07  2000.80.1007.0      19,968  Sqlevn70.rll 15-Mar-2005 02:07  2000.80.1007.0     493,568  Sqlmaint.exe 15-Mar-2005 02:07  2000.80.1007.0      23,040  Sqlmap70.dll 15-Mar-2005 02:06  2000.80.1007.0     152,064  Sqlrepss.dll 15-Mar-2005 02:06  2000.80.1007.0  25,271,808  Sqlservr.exe 15-Mar-2005 02:06                  21,326,848  Sqlservr.pdb 15-Mar-2005 02:06  2000.80.1007.0     616,960  Sqlsort.dll 15-Mar-2005 02:07  2000.80.1007.0     616,960  Sqlsort.dll 15-Mar-2005 02:07  2000.80.1007.0     616,960  Sqlsort.dll 15-Mar-2005 02:06  2000.80.1007.0     120,320  Sqlvdi.dll 15-Mar-2005 02:06  2000.80.1007.0      45,644  Sqlvdi.dll 15-Mar-2005 02:06  2000.80.1007.0     227,328  Sqsrvres.dll 15-Mar-2005 02:06  2000.80.1007.0      53,760  Ssmslpcn.dll 15-Mar-2005 02:06  2000.80.1007.0      59,904  Ssmsqlgc.dll 15-Mar-2005 02:06  2000.80.1007.0     256,000  Ssnetlib.dll 15-Mar-2005 02:06  2000.80.1007.0      20,992  Ssnmpn70.dll 15-Mar-2005 02:06  2000.80.1007.0     430,080  Svrnetcn.dll 15-Mar-2005 02:06  2000.80.1007.0     185,856  Svrnetcn.exe 15-Mar-2005 02:06  2000.80.1007.0     183,296  Xplog70.dll 15-Mar-2005 02:07  2000.80.1007.0     187,392  Xpweb70.dll Note Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.



WORKAROUND
This problem occurs when the query generates floating point exception errors. To work around this problem, modify the query so that the floating point exceptions do not occur.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
Floating point exception errors are typically handled internally by SQL Server 2000 and the query runs as expected. When SQL Server 2000 handles these errors, no error is returned to the client. The errors will appear in a profiler trace capture.

When a thread does not yield the UMS, other threads cannot access CPU resources. If the handling of floating point exceptions takes longer than 60 seconds, a 17883 error is written to in the SQL Server error log.

For more information about 17883 errors, click the following article number to view the article in the Microsoft Knowledge Base:

319892 New concurrency and scheduling diagnostics added to SQL Server



For more information about the naming schema for Microsoft SQL Server updates, click the following article number to view the article in the Microsoft Knowledge Base:

822499 New naming schema for Microsoft SQL Server software update packages

For more information about the terminology that Microsoft uses when it corrects software after it is released, 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

Keywords: kbbug kbfix kbqfe kbhotfixserver KB892840

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