Microsoft KB Archive/271076

= &quot;Stop 0x50&quot; in Cache Manager Under High Input/Output Stress =

PSS ID Number: 271076

Article Last Modified on 5/14/2003

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The information in this article applies to:


 * Microsoft Windows NT Server 4.0
 * Microsoft Windows NT Server 4.0 SP1
 * Microsoft Windows NT Server 4.0 SP2
 * Microsoft Windows NT Server 4.0 SP3
 * 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 4.0 SP6a
 * Microsoft Windows NT Workstation 4.0
 * Microsoft Windows NT Workstation 4.0 SP1
 * Microsoft Windows NT Workstation 4.0 SP2
 * Microsoft Windows NT Workstation 4.0 SP3
 * Microsoft Windows NT Workstation 4.0 SP4
 * Microsoft Windows NT Workstation 4.0 SP5
 * Microsoft Windows NT Workstation 4.0 SP6
 * Microsoft Windows NT Workstation 4.0 SP6a

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This article was previously published under Q271076



SYMPTOMS
During periods of high input/output (I/O) stress, you may receive a &quot;Stop 0x00000050&quot; error message. The parameters may vary based on your computer and software configuration, but may be similar to:

Stop 0x00000050 (0xf936a018, 0x00000000, 0x00000000, 0x00000000)

-or-

Stop 0x00000050 (0xf9077020, 0x00000000, 0x00000000, 0x00000000)



CAUSE
Under high stress, a condition occurs in which a buffer is released and then is accessed by another thread. This results in an access violation.



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 Windows NT 4.0 service pack that contains this fix.

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:   Date         Time     Size        File name      Platform -  08/30/2000   09:35p     955,264   Ntkrnlmp.exe   Intel 08/30/2000  09:35p     934,784   Ntoskrnl.exe   Intel 08/30/2000  09:34p   1,401,856   Ntkrnlmp.exe   Alpha 08/30/2000  09:34p   1,373,760   Ntoskrnl.exe   Alpha



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Keywords: kbbug kbfix kbQFE KB271076

Technology: kbWinNT400search kbWinNTS400 kbWinNTS400search kbWinNTS400sp1 kbWinNTS400sp2 kbWinNTS400sp3 kbWinNTS400sp4 kbWinNTS400sp5 kbWinNTS400sp6 kbWinNTsearch kbWinNTSsearch kbWinNTW400 kbWinNTW400search kbWinNTW400sp1 kbWinNTW400sp2 kbWinNTW400sp3 kbWinNTW400sp4 kbWinNTW400sp5 kbWinNTW400sp6 kbWinNTW400SP6a kbWinNTWsearch

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