Microsoft KB Archive/821548

= FIX: A Parallel Query May Generate an Access Violation After You Install SQL Server 2000 SP3 =

Article ID: 821548

Article Last Modified on 10/25/2005

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APPLIES TO


 * Microsoft SQL Server 2000 Service Pack 3

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BUG #: 469252 ( SQL Server 8.0 )



SYMPTOMS
After you install SQL Server 2000 Service Pack 3 (SP3), a query that uses a parallel plan may fail and cause an access violation in the ParallelPageSharedData::AddRef function.



Service pack information
To resolve this problem, obtain the latest service pack for Microsoft SQL Server 2000. For additional information, 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

Hotfix information
The English version of this fix has the file attributes (or later) 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 25-Jun-2003 01:01  2000.80.818.0      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 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 22-May-2003 22:57                     19,195  Qfe469571.sql 12-Jun-2003 16:37                  1,083,989  Replmerg.sql 04-Apr-2003 21:53  2000.80.798.0     221,768  Replprov.dll 08-Feb-2003 06:40  2000.80.765.0     307,784  Replrec.dll 05-May-2003 00:05                  1,085,874  Replsys.sql 01-Jun-2003 01:01  2000.80.818.0     492,096  Semobj.dll 31-May-2003 18:27  2000.80.818.0     172,032  Semobj.rll 29-May-2003 00:29                    115,944  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 02-Jul-2003 00:18  2000.80.834.0     180,736  Sqlmap70.dll 08-Feb-2003 06:40  2000.80.765.0      57,920  Sqlrepss.dll 23-Jun-2003 22:40  2000.80.837.0   7,553,105  Sqlservr.exe 08-Feb-2003 06:40  2000.80.765.0      45,644  Sqlvdi.dll 25-Jun-2003 01:01  2000.80.818.0      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 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.



WORKAROUND
To work around this problem, use one of the following methods:
 * Disable parallelism for the specific query by using the OPTION (MAXDOP 1) clause.

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 * Disable parallelism server-wide by setting the sp_configure parameter max degree of parallelism to 1.

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 * Use trace flag 683 that in included in SQL Server Post SP3 hotfix builds 8.00.0765 and later. If you enable this trace flag, the pre-SQL Server 2000 SP3 parallel scan behavior is enabled, and the access violation does not occur.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft SQL Server 2000 Service Pack 4.



MORE INFORMATION
A stack dump file that is similar to the following dump file may be logged in the SQL Server error log:

2003-03-24 17:23:31.73 spid51 SqlDumpExceptionHandler: Process 1504 generated fatal exception c0000005 EXCEPTION_ACCESS_VIOLATION. SQL Server is terminating this process.



BEGIN STACK DUMP:

03/24/03 17:23:31 spid 51

Exception Address = 00810EC0 (ParallelPageSharedData::AddRef + 0000001C Line 0+00000000)

Exception Code = c0000005 EXCEPTION_ACCESS_VIOLATION

Access Violation occurred writing address 00000004 0



Short Stack Dump

00810EC0 Module(sqlservr+00410EC0) (ParallelPageSharedData::AddRef+0000001C)

00810F80 Module(sqlservr+00410F80) (ParallelPageSupplier::ParallelPageSupplier+00000032)

008115D4 Module(sqlservr+004115D4) (AllocSisterParallelPageSupplier+00000033)

00800F08 Module(sqlservr+00400F08) (RowsetSS::Init+000005E4)

0042307C Module(sqlservr+0002307C) (OpenRowsetSS::OpenRowset+00000174)

00490705 Module(sqlservr+00090705) (GetTableCursor+00000056)

006F127A Module(sqlservr+002F127A) (CQScanRowset::ParallelGetRowset+0000015C)

006F9C3C Module(sqlservr+002F9C3C) (CQScanTableScan::CQScanTableScan+00000084)

004EA3B6 Module(sqlservr+000EA3B6) (CXteTableScan::QScanGet+00000089)

006FC902 Module(sqlservr+002FC902) (CQScanXProducer::CQScanXProducer+0000014E)

006FC588 Module(sqlservr+002FC588) (FnProducerThread+0000013C)

0051274C Module(sqlservr+0011274C) (subproc_main+000000C2)

41075002 Module(UMS+00005002) (ProcessWorkRequests+00000272)

41074698 Module(UMS+00004698) (ThreadStartRoutine+00000098)

7800C9EB Module(MSVCRT+0000C9EB) (beginthread+000000CE)

77E887DD Module(KERNEL32+000087DD) (GetModuleFileNameA+000001D1)



Keywords: kbbug kbfix kbstoredproc kbqfe kbsqlserv2000presp4fix kbconfig kbquery kbhotfixserver KB821548

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