Microsoft KB Archive/291781

= &quot;Stop 0x50&quot; in IopReportResourceUsage If Resource List Is Parsed Incorrectly While Loading Sysmgmt.sys =

Article ID: 291781

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT 4.0 Service Pack 5
 * Microsoft Windows NT 4.0 Service Pack 6a
 * Microsoft Windows NT 4.0 Service Pack 5
 * Microsoft Windows NT 4.0 Service Pack 6a
 * Microsoft Windows NT Workstation 4.0
 * Microsoft Windows NT Workstation 4.0 Developer Edition

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This article was previously published under Q291781



SYMPTOMS
During Windows startup, a &quot;Stop 0x00000050&quot; (e1400004,0,0,2) error may occur. This problem is known to occur on Compaq Proliant DL580 multiple-processor computers in the early stages of startup when loading the Compaq Sysmgmt.sys driver. At this stage, no memory dump is generated; a live debug session is required to clearly identify this problem. The problem occurs only when the Sysmgmt.sys Startup mode is &quot;system&quot; (the default), and is intermittent (about 1 in 10 tries). If Sysmgmt.sys is started in &quot;automatic&quot; mode, the problem does not occur.



CAUSE
Resource lists (CM_RESOURCE_LIST) that are provided by Sysmgmt.sys are parsed incorrectly in IopReportResourceUsage. Therefore, the parser may address a non-mapped area of memory, generating the problem.



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:

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 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 -  03/15/2001  05:36p    957,120  Ntkrnlmp.exe  Intel 03/15/2001 05:36p    936,768  Ntoskrnl.exe  Intel 03/15/2001 05:32p  1,403,200  Ntkrnlmp.exe  Alpha 03/15/2001 05:32p  1,375,104  Ntoskrnl.exe  Alpha NOTE: Because of file dependencies, this hotfix requires Windows NT 4.0 Service Pack 6a (SP6a).



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

Additional query words: sysmgmt.sys DL580 IopReportResourceUsage 0x50 blue screen bluescreen

Keywords: kbbug kbfix kbqfe kbhotfixserver KB291781

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