Clusdisk.sys May Corrupt Pool Memory

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

SYMPTOMS

Clusdisk.sys may corrupt pool memory if you are running Microsoft Cluster Server with an EMC single-node disk array. The failover is handled manually by EMC tools and can go unnoticed. When special pool overrun protection is enabled for all tags, you may receive a "Stop 0x00000050" error message on boot.

For additional information about enabling pool overrun protection, click the article number below to view the article in the Microsoft Knowledge Base:

Q192486 Introduction to Windows NT Kernel Special Pool

CAUSE

This behavior occurs when Clusdisk.sys attempts to write past its allocation memory.

RESOLUTION

A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem. If you are not severely affected by this specific 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 on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp

   Date       Time      Size    File name      Platform
   ----------------------------------------------------
   11/05/99   4:38 PM   28 KB   Clusdisk.sys   Intel
   11/05/99   4:37 PM   47 KB   Clusdisk.sys   Alpha 

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article.

Additional query words:

Keywords : kbbug4.00 kbfix4.00
Version : winnt:4.0,4.0 SP4,4.0 SP5,4.0 SP6
Platform : winnt
Issue type : kbbug