FIX: Exception Access Violation Encountered in PrintWarnings Function (303950)

SYMPTOMS

A computer that is running SQL Server with Address Windowing Extensions (AWE) enabled may experience an Access Violation when attempting to generate a latch warning if the buffer is not currently mapped. For more information about AWE mapping, refer to the Win32 documentation about the MapUserPhysicalPages function.

The following stack trace is logged in the SQL Server error log:

0082CA07 Module(sqlservr+0042CA07) (LatchBase::PrintWarning+0000003E)       
0082C984 Module(sqlservr+0042C984) (LatchBase::Suspend+00000466)            
004018CB Module(sqlservr+000018CB) (LatchBase::Acquire+00000098)            
004290A0 Module(sqlservr+000290A0) (BUF::AcquireIOLatch+00000018)           
.
.

RESOLUTION

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next SQL Server service pack that contains this hotfix.

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

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

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 typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:

   File name       Platform
   ------------------------

   S80404i.exe     Intel

NOTE: Due to file dependencies, the most recent hotfix or feature that contains the preceding files may also contain additional files.

STATUS

Microsoft has confirmed this to be a problem in SQL Server 2000.

REFERENCES

For additional information about latch timeout problems, click the article number below to view the article in the Microsoft Knowledge Base:

303640 FIX: Latch Timeout Warnings Appear in Error Log and Slow SQL Server Response Occurs with AWE Enabled