Windows NT 4.0 Csrss.exe Stops Responding with a Stop 0xc000021A Error Message (244925)



The information in this article applies to:

  • Microsoft Windows NT Server 4.0
  • Microsoft Windows NT Server 4.0 SP4
  • Microsoft Windows NT Server 4.0 SP5
  • Microsoft Windows NT Server 4.0 SP6
  • Microsoft Windows NT Server, Enterprise Edition 4.0
  • Microsoft Windows NT Server, Enterprise Edition 4.0 SP4
  • Microsoft Windows NT Server, Enterprise Edition 4.0 SP5
  • Microsoft Windows NT Server, Enterprise Edition 4.0 SP6
  • Microsoft Windows NT Workstation 4.0
  • Microsoft Windows NT Workstation 4.0 SP4
  • Microsoft Windows NT Workstation 4.0 SP5
  • Microsoft Windows NT Workstation 4.0 SP6

This article was previously published under Q244925

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 that is described in this article. Apply it only to computers that are 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 about support costs, visit the following Microsoft Web site: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 usual 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 that this is a problem in Windows NT 4.0.

Modification Type:MinorLast Reviewed:9/26/2005
Keywords:kbHotfixServer kbQFE kbenv kberrmsg kbfix kbprb KB244925