FIX: IoBuildPartialMdl API does not propagate the device memory flag (828274)

SYMPTOMS

A device driver that uses device I/O MDL, as opposed to a regular memory MDL, and then passes the MDL to the IoBuildPartialMdl function as the SourceMdl parameter, may crash the system. The crash may occur when the resulting partial MDL is referenced later.

When the crash occurs, you may receive the following error message on the stop error screen:
Stop 0x00000050 PAGE_FAULT_IN_NONPAGED_AREA

RESOLUTION

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

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.

File information

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time   Version            Size    File name
   --------------------------------------------------------------
   08-Sep-2003  23:28  5.1.2600.1267   1,896,960  Ntkrnlmp.exe
   08-Sep-2003  23:29  5.1.2600.1267   1,953,024  Ntkrnlpa.exe
   08-Sep-2003  23:29  5.1.2600.1267   1,924,608  Ntkrpamp.exe
   09-Sep-2003  00:56  5.1.2600.1267   2,049,408  Ntoskrnl.exe

MORE INFORMATION

For additional information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

816915 New file naming schema for Microsoft Windows software update packages

For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates