Microsoft KB Archive/827080

= FIX: An Exception Occurs in a TFAT Driver on a MIPS IV FP-Based Operating System =

Article ID: 827080

Article Last Modified on 5/27/2005

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APPLIES TO


 * Microsoft Windows CE .NET 4.2

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SYMPTOMS
When the option to use the cluster 1 entry for transaction data is enabled, an exception may occur in the TFAT driver on MIPS IV FP microprocessor-based operating systems.



CAUSE
The exception occurs because of a data alignment problem. The ULONGULONG type structure element alignment in the 64-bit processor build is different from the 32-bit processor build.



Hotfix Information
A supported software update is now available from Microsoft as Windows CE 4.2 Core OS QFE 827080. 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 fix is supported only when all previously released fixes for this product have also been installed.

Restart Requirement
After you apply this update, you must perform a clean operation and then rebuild the platform.

Hotfix Replacement Information
This hotfix does not replace any other hotfixes.

File Information
The English version of this package has the file attributes (or later) that are listed in the following table.   Date         Time   Version  Size    File name --

19-Sep-2003 23:26  4.21     911,976  Wincepb42-030919-kb827080-armv4.exe 19-Sep-2003 23:26  4.21     911,976  Wincepb42-030919-kb827080-armv4i.exe 19-Sep-2003 23:26  4.21     928,360  Wincepb42-030919-kb827080-mipsii.exe 19-Sep-2003 23:26  4.21     928,360  Wincepb42-030919-kb827080-mipsii_fp.exe 19-Sep-2003 23:27  4.21     940,648  Wincepb42-030919-kb827080-mipsiv.exe 19-Sep-2003 23:27  4.21     940,648  Wincepb42-030919-kb827080-mipsiv_fp.exe 19-Sep-2003 23:26  4.21     887,400  Wincepb42-030919-kb827080-sh3.exe 19-Sep-2003 23:26  4.21     887,400  Wincepb42-030919-kb827080-sh4.exe 19-Sep-2003 23:26  4.21     838,248  Wincepb42-030919-kb827080-x86.exe 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                      Size    File name --

Path: Public\Common\Oak\Lib\Armv4\Debug 11-Sep-2003 15:30                    715,704  Tfat.lib 11-Sep-2003 15:30                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Armv4\Retail 11-Sep-2003 15:30                    402,264  Tfat.lib 11-Sep-2003 15:30                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Armv4i\Debug 11-Sep-2003 15:30                    716,476  Tfat.lib 11-Sep-2003 15:30                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Armv4i\Retail 11-Sep-2003 15:30                    402,740  Tfat.lib 11-Sep-2003 15:30                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Mipsii\Debug 11-Sep-2003 15:31                    731,396  Tfat.lib 11-Sep-2003 15:31                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Mipsii\Retail 11-Sep-2003 15:31                    410,190  Tfat.lib 11-Sep-2003 15:31                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Mipsii_fp\Debug 11-Sep-2003 15:31                    731,482  Tfat.lib 11-Sep-2003 15:31                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Mipsii_fp\Retail 11-Sep-2003 15:31                    410,344  Tfat.lib 11-Sep-2003 15:31                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Mipsiv\Debug 11-Sep-2003 15:31                    741,178  Tfat.lib 11-Sep-2003 15:31                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Mipsiv\Retail 11-Sep-2003 15:31                    413,820  Tfat.lib 11-Sep-2003 15:31                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Mipsiv_fp\Debug 11-Sep-2003 15:31                    741,264  Tfat.lib 11-Sep-2003 15:31                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Mipsiv_fp\Retail 11-Sep-2003 15:31                    413,972  Tfat.lib 11-Sep-2003 15:31                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Sh3\Debug 11-Sep-2003 15:32                    628,022  Tfat.lib 11-Sep-2003 15:32                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Sh3\Retail 11-Sep-2003 15:32                    373,042  Tfat.lib 11-Sep-2003 15:32                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Sh4\Debug 11-Sep-2003 15:32                    627,646  Tfat.lib 11-Sep-2003 15:32                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\Sh4\Retail 11-Sep-2003 15:32                    372,298  Tfat.lib 11-Sep-2003 15:32                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\X86\Debug 11-Sep-2003 15:30                    613,998  Tfat.lib 11-Sep-2003 15:30                     86,016  Tfat.pdb

Path: Public\Common\Oak\Lib\X86\Retail 11-Sep-2003 15:30                    330,006  Tfat.lib 11-Sep-2003 15:30                     86,016  Tfat.pdb



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



MORE INFORMATION
The problematic code was rewritten to use an alignment-independent method for comparing values.

Keywords: kbbug kbfix kbqfe KB827080

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