The information in this article applies to:
SYMPTOMS
Under Windows 386 Enhanced mode a workstation can crash or lock up during
an SQL query using RAS, most frequently when Microsoft Access uses ODBC
to get data from an SQL Server over a RAS connection with links 9600 baud
or faster. Front-end database applications including Microsoft Access can
be used to perform such queries. These symptoms are seen:
CAUSE
The redirector, netwksta.*, requires a larger internal stack. Commonly
these failures occur under stress and are worsened by long distance or
slow links, resulting in serial port data overruns. The real-mode LAN
Manager redirector acts as a catalyst.
RESOLUTION
Note: Many internal modems avoid this problem because they have a UART
chip that acts as a buffer to prevent serial device data overruns.
STATUSResolved. MORE INFORMATIONConfigurationLAN Manager 2.2RAS 1.1 MS-DOS 5.0, 6.0 Microsoft Access 1.1 RAS Debug TraceThe following trace was obtained using Net Start Raserver /debug:FILEThe two commands listed below are completed continuously until the session hangs as a result of workstation problems. Rc 18h indicates that a NetBIOS session ended abnormally.
At this point, the RAS server disconnects the session between the asynch
clint and the LAN Sql server, but the asynch client session hangup
completes with rc 8h indicating an invalid local session number.
VCCloseComplete: Entered Additional query words: wfw wfwg 2.10 2.1 2.20 2.2 2.10a 2.1a 2.20a 2.2a
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Last Reviewed: November 5, 1999 © 2000 Microsoft Corporation. All rights reserved. Terms of Use. |