DOCUMENT:Q239575 10-AUG-2001 [winnt] TITLE :Err Msg: STOP: 0X00002B PANIC_STACK_SWITCH PRODUCT :Microsoft Windows NT PROD/VER:winnt:4.0,4.0 SP4,4.0 SP5 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0 SP5 - Microsoft Windows NT Server, Enterprise Edition version 4.0 SP5 - Microsoft Windows NT Server versions 4.0, 4.0 SP4, 4.0 SP5, Terminal Server Edition ------------------------------------------------------------------------------- SYMPTOMS ======== When you are installing Microsoft SQL Server 7.0 Service Pack 1 (SP1) on an Alpha-based computer with a Powerstorm 4d20 video adapter (using the Tga2 driver), the computer may stop responding (hang) with the following error message shortly after the user validation phase of SQL 7.0 SP1 Setup: STOP: 0X00002B (0xDE05CFA4,0x00000003,0Xfffffff0,0xf657c000) PANIC_STACK_SWITCH Microsoft Windows NT [0xf0000565] Machine State at Call to Bug Check PC : 800c0364 PSR : 0000001E Callee-Sp Return -Ra Dll Base - Name 806d9e00 800c0364 : 80080000 - ntoskrnl.exe FFFFFFF0 DE05CFA8 80080000 - ntoskrnl.exe Callee-SP Return-RA Call Site 806d90f0 800b854c : ntkrnlmp!DbgBreakPointWithStatus+0x4 806d90f0 800bfde0 : ntkrnlmp!KeBugCheckEx+0x254 806d9620 800c2694 : ntkrnlmp!KiMemoryManagementException+0xf4 806d9820 800c255c : ntkrnlmp!KiLookupFunctionEntry+0x74 806d9840 800b84a0 : ntkrnlmp!KeDumpMachineState+0x17c 806d98d0 800c0360 : ntkrnlmp!KeBugCheckEx+0x1a8 806d9e00 de05cfa4 : ntkrnlmp!KiPanicException+0x8 fffffff0 80174230 : win32k!W32pThreadCallout+0x4 00000010 00000000 : ntkrnlmp!PsConvertToGuiThread+0x250 WORKAROUND ========== To work around this behavior, use the standard VGA video driver on the computer instead of the Powerstorm 4d20 (Tga2) driver. The files for the Powerstorm 4d20 video driver are listed below. Date Time File name ----------------------------- 01/22/1998 10:14a Tga2.dll 01/22/1998 10:18a Tga2.sys MORE INFORMATION ================ This problem can occur on the following Alpha-based computers: - AlphaServer 1200 - AlphaServer 4000/4100 - AlphaServer 8200/8400 - Digital Ultimate Workstation Additional query words: ====================================================================== Keywords : Technology : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400sp5 kbWinNTS400sp5 kbWinNTS400search kbNTTermServ400 kbNTTermServ400sp4 kbNTTermServ400sp5 kbNTTermServSearch Version : winnt:4.0,4.0 SP4,4.0 SP5 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.