Microsoft KB Archive/264247

= &quot;Stop 0x0a&quot; Error Message When Using the QLogic Fibre Channel Driver (Ql2100.sys) =

Article ID: 264247

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Server 4.0 Enterprise Edition
 * Microsoft Windows NT Workstation 4.0 Developer Edition

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This article was previously published under Q264247



SYMPTOMS
Under heavy system load, a multiprocessor computer using the QLogic Fibre Channel disk array controller may experience &quot;Stop 0x0a&quot; error messages involving the Scsiport.sys and Ql2100.sys drivers.

NOTE: The observed frequency of this behavior is once/twice per week of system stress.



CAUSE
The memory becomes corrupted when the virtual address that is returned by the Scsiport.sys driver overlaps the QLogic PhysicalCommonBuffer.



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-language version of this fix should have the following file attributes or later:   Date        Time    Size    File name     Platform --  05-15-2000  02:23p  35,568  Scsiport.sys  x86 05-15-2000 02:22p  56,592  Scsiport.sys  Alpha

The problem is fixed in Scsiport.sys, which no longer returns a virtual address that overlaps the QLogic CommonBuffer area.



STATUS
Microsoft has confirmed that this is a problem in Windows NT 4.0.

Keywords: kbhotfixserver kbqfe kbbug kbenv kbfix KB264247

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