Microsoft KB Archive/888610

= FIX: Memory data may not match the contents of a memory-mapped file in Windows CE .NET 4.1 =

Article ID: 888610

Article Last Modified on 5/27/2005

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APPLIES TO


 * Microsoft Windows CE .NET 4.1

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SYMPTOMS
In Microsoft Windows CE .NET 4.1, if an application accesses memory that is mapped to a memory-mapped file, the memory data may not match the actual contents of the file. If the application reads the same memory again, the correct file contents are read.



CAUSE
This problem occurs because memory data that is paged in from the memory-mapped file was not flushed from the cache before the memory data is accessed from the application.



Software update information
A supported software update is now available from Microsoft as Windows CE .NET 4.1 Core OS QFE 888610. To resolve this problem immediately, click the following article number for information about obtaining Windows CE Platform Builder and core operating system software updates:

837392 How to locate core operating system fixes for Microsoft Windows CE Platform Builder products

Prerequisites
This software update is supported only if all previously issued software updates for this product have also been installed.

Restart requirement
After you install this software update, you must perform a clean build of the whole platform. To clean the platform, click Clean on the Build menu. To build the platform, click Build Platform on the Build menu. You do not have to restart your computer after you apply this software update.

Software update replacement information
This software update does not replace any other software updates.

File information
The English version of this package has the file attributes or later file attributes that are listed in the following table:   Date         Time   Version     Size     File name

Path: Signed 07-Dec-2004 02:09  4.1.4.1207  617,208  Wincepb41-041207-kb888610-armv4.exe 07-Dec-2004 02:11  4.1.4.1207  617,208  Wincepb41-041207-kb888610-armv4i.exe 07-Dec-2004 02:09  4.1.4.1207  617,208  Wincepb41-041207-kb888610-armv4t.exe 07-Dec-2004 02:09  4.1.4.1207  617,208  Wincepb41-041207-kb888610-mips16.exe 07-Dec-2004 02:09  4.1.4.1207  621,304  Wincepb41-041207-kb888610-mipsii.exe 07-Dec-2004 02:11  4.1.4.1207  621,304  Wincepb41-041207-kb888610-mipsii_fp.exe 07-Dec-2004 02:09  4.1.4.1207  621,304  Wincepb41-041207-kb888610-mipsiv.exe 07-Dec-2004 02:11  4.1.4.1207  621,304  Wincepb41-041207-kb888610-mipsiv_fp.exe 07-Dec-2004 02:09  4.1.4.1207  613,112  Wincepb41-041207-kb888610-sh3.exe 07-Dec-2004 02:11  4.1.4.1207  613,112  Wincepb41-041207-kb888610-sh4.exe 07-Dec-2004 02:09  4.1.4.1207  609,016  Wincepb41-041207-kb888610-x86.exe The English version of this update has the file attributes (or later file attributes) 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   Size     File name --

Path: Public\Common\Oak\Lib\Armv4\Debug 16-Nov-2004 17:40  123,896  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Armv4\Retail 16-Nov-2004 17:40   54,860  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Armv4i\Debug 16-Nov-2004 17:40  124,002  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Armv4i\Retail 16-Nov-2004 17:40   55,034  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Armv4t\Debug 16-Nov-2004 17:40  114,162  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Armv4t\Retail 16-Nov-2004 17:40   54,070  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Mips16\Debug 16-Nov-2004 17:40  127,438  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Mips16\Retail 16-Nov-2004 17:40   52,282  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Mipsii\Debug 16-Nov-2004 17:40  127,438  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Mipsii\Retail 16-Nov-2004 17:40   58,058  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Mipsii_fp\Debug 16-Nov-2004 17:40  127,446  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Mipsii_fp\Retail 16-Nov-2004 17:40   58,064  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Mipsiv\Debug 16-Nov-2004 17:40  129,482  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Mipsiv\Retail 16-Nov-2004 17:40   58,926  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Mipsiv_fp\Debug 16-Nov-2004 17:40  129,490  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Mipsiv_fp\Retail 16-Nov-2004 17:40   58,934  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Sh3\Debug 16-Nov-2004 17:40  103,724  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Sh3\Retail 16-Nov-2004 17:40   47,846  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Sh4\Debug 16-Nov-2004 17:40  103,674  Nkmapfile.lib

Path: Public\Common\Oak\Lib\Sh4\Retail 16-Nov-2004 17:40   47,724  Nkmapfile.lib

Path: Public\Common\Oak\Lib\X86\Debug 16-Nov-2004 17:40  104,450  Nkmapfile.lib

Path: Public\Common\Oak\Lib\X86\Retail 16-Nov-2004 17:40   44,502  Nkmapfile.lib



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Keywords: kbbug kbfix kbqfe KB888610

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