FIX: Inserts on SMP Computer Can Cause Error Message 1203

Last reviewed: May 2, 1997
Article ID: Q141539

The information in this article applies to:

Microsoft SQL Server, version 6.0

BUG# NT: 11223 (6.00)

SYMPTOMS

If a table has a non-unique clustered index and is running on a multiprocessor computer with SMP support on, INSERTs can cause the following 1203 error message to occur:

   Msg  1203 Level 20 State 1
   Caller of lock manager is incorrectly trying to unlock an unlocked
   object. spid=%d locktype=%d dbid=%d lockid=%ld.

WORKAROUND

There are several options available to avoid this problem, including:

Turn off dedicated multiprocessor support to allow the INSERT to complete.
Replace the clustered index on the problem table with a nonclustered index.
Make the non-unique clustered index into a unique clustered index.

STATUS

Microsoft has confirmed this to be a problem in SQL Server versions 4.21a and 6.0. This problem was corrected in Service Pack 2 for SQL Server version 6.0. For more information, contact your primary support provider.

Additional query words: sql6 smp winnt
Keywords : kbbug4.21a kbbug6.00 kbenv kbfix6.00.sp2 SSrvGen SSrvProg
Version : 4.21a 6.0
Platform : WINDOWS
Issue type : kberrmsg

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Last reviewed: May 2, 1997
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