DOCUMENT:Q244925 08-MAY-2002 [winnt] TITLE :Csrss.exe Stops Responding with a Stop 0xc000021A Error Message PRODUCT :Microsoft Windows NT PROD/VER:winnt:4.0,4.0 SP4,4.0 SP5,4.0 SP6 OPER/SYS: KEYWORDS:kbenv kberrmsg kbWinNT400PreSP7Fixkbfixlist ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server versions 4.0, 4.0 SP4, 4.0 SP5, 4.0 SP6 - Microsoft Windows NT Server, Enterprise Edition versions 4.0, 4.0 SP4, 4.0 SP5, 4.0 SP6 - Microsoft Windows NT Workstation versions 4.0, 4.0 SP4, 4.0 SP5, 4.0 SP6 ------------------------------------------------------------------------------- SYMPTOMS ======== When you receive an access violation in the Csrss.exe file, your computer may generate a "stop 0xc000021a" error message (bugcheck). If you perform a user dump, it displays the following register contents and the thread call stack at the time of failure: > r EAX=00000000 EBX=00297848 ECX=f000ff47 EDX=000000b0 ESI=00285ac8 EDI=00285ac8 EIP=5ffb5d04 ESP=0062feb8 EBP=0062fef8 EFL=00013246 CS=001b DS=0023 ES=0023 SS=0023 FS=0038 GS=0000 > kb FramePtr RetAddr Param1 Param2 Param3 Function Name 0062feb8 5ffc0f9a 00000000 00285ac8 00000cec WINSRV!AddProcessToList+0x24 0062fef8 5ff927a4 0062ff14 0062ffd0 00000005 WINSRV!SrvAllocConsole+0x18a 0062fff4 00000000 00000088 00000000 00000000 CSRSRV!CsrApiRequestThread+0x5a5 CAUSE ===== This problem can occur under low memory conditions. When this occurs, creation of the console window can fail, and the "FreeConsoleHandle" call is made without locking the console handle table. RESOLUTION ========== A supported fix is now available from Microsoft, but it is only intended to correct the problem described in this article and should be applied only to systems experiencing this specific problem. To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web: http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS NOTE: In special cases, charges that are normally incurred for support calls may be canceled, if a Microsoft Support Professional determines that a specific update will resolve your problem. Normal 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: Date Time Size File name Platform ------------------------------------------------------------- 10/25/1999 4:14 pm 175,376 Winsrv.dll x86 10/25/1999 4:13 pm 314,128 Winsrv.dll Alpha 10/18/1999 4:41 pm 1,250,896 Win32k.sys x86 10/18/1999 4:39 pm 2,049,904 Win32k.sys Alpha 10/18/1999 6:54 pm 335,120 User32.dll x86 10/18/1999 6:52 pm 577,296 User32.dll Alpha 10/18/1999 6:53 pm 166,160 Gdi32.dll x86 10/18/1999 6:52 pm 307,984 Gdi32.dll Alpha STATUS ====== Microsoft has confirmed this to be a problem in Windows NT 4.0. Additional query words: ====================================================================== Keywords : kbenv kberrmsg kbWinNT400PreSP7Fix kbfixlist Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTW400sp5 kbWinNTW400sp4 kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400sp6 kbWinNTSEnt400sp5 kbWinNTSEnt400sp4 kbWinNTSEnt400 kbWinNTS400sp6 kbWinNTS400sp5 kbWinNTS400sp4 kbWinNTS400search kbWinNTS400 kbWinNTW400sp6 Version : winnt:4.0,4.0 SP4,4.0 SP5,4.0 SP6 Hardware : ALPHA x86 Issue type : kbprb Solution Type : kbfix ============================================================================= 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 2002.