Microsoft KB Archive/257299

= Memory.dmp File Is Missing or Contains Corrupted Data =

Article ID: 257299

Article Last Modified on 10/30/2006

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APPLIES TO


 * Microsoft Windows 2000 Server

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This article was previously published under Q257299



SYMPTOMS
If the system partition is built with the dynamic mirrored volume, the Memory.dmp file may not be generated or may contain corrupted data.

If you run Dumpchk.exe against the Memory.dmp file, the following error message is displayed:

Validating the integrity of the PsLoadedModuleList

Error: Could not read base of PsLoadedModuleList

Error: The module list is not valid

Error: The media is write protected

This dump file is bad.



CAUSE
The crash dump driver saves the information in the paging file only to the primary disk and causes the mirrored volume to go out of synchronization. On the first reboot after the crash, the system (Savedump.exe) reads the paging file to save the dump information in the Memory.dmp file.

By default, the disk read calls are optimized by performing round-robin reads from both of the disks in the mirror set. In this process, the Memory.dmp file receives corrupted data when the system reads the data from the second disk in the mirror set, which does not really have the dump information.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack



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

This problem was first corrected in Windows 2000 Service Pack 1.



MORE INFORMATION
For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Keywords: kbhotfixserver kbqfe kbbug kbenv kberrmsg kbfix kbwin2000sp1fix KB257299

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