Article ID: 311278 - Last Review: January 31, 2007 - Revision: 3.3

A "Stop 0x0000001e, 0xC0000005, 0x00000009" Error Occurs in the Classpnp.sys Driver

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This article was previously published under Q311278

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SYMPTOMS

A "Stop 0x0000001e, 0xC0000005, 0x00000009" error may occur in the Classpnp.sys driver on multiprocessor computers.

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CAUSE

This error occurs because a linked list is being traversed while the list is not locked. Therefore, the list can be modified while a thread is searching it.

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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 (http://support.microsoft.com/kb/260910/EN-US/ ) How to Obtain the Latest Windows 2000 Service Pack

The English version of this fix should have the following file attributes or later:

   Date         Time   Version        Size    File name
   -------------------------------------------------------
   16-Nov-2001  12:23  5.0.2195.4643  34,415  Classpnp.sys

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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 3.

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MORE INFORMATION

For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:

265173 (http://support.microsoft.com/kb/265173/EN-US/ ) The Datacenter Program and Windows 2000 Datacenter Server Product

For additional information about how to install multiple hotfixes with only one reboot, click the article number below to view the article in the Microsoft Knowledge Base:

296861 (http://support.microsoft.com/kb/296861/EN-US/ ) Use QChain.exe to Install Multiple Hotfixes with One Reboot

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 (http://support.microsoft.com/kb/249149/EN-US/ ) Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

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