A data alignment exception occurs in DCOM on a MIPS IV FP-based system (831671)


The information in this article applies to:

  • Microsoft Windows CE .NET 4.1

SYMPTOMS

When a program uses distributed component object model (DCOM) services on Microsoft Windows CE operating systems that are based on the MIPS IV FP microprocessor, an exception may occur.

Debug information shows that the exception occurs in the PingServer function call.

CAUSE

This problem occurs because the calculation of a pointer into an allocation may cause a pointer not to be aligned on an 8-byte boundary. Alignment varies among microprocessors, as follows:
  • On the MIPS IV FP microprocessor, data access must be aligned to 64-bit (8-byte) boundaries.
  • On most other microprocessors that are supported by Windows CE, data access must be aligned to 32-bit (4-byte) boundaries.

RESOLUTION

Hotfix Information

A supported software update is now available from Microsoft as Windows CE 4.1 Core OS QFE 031219_KB831671. 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 issued 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-Dec-2003  23:25  4.10            1,063,664  Wincepb41-031219-kb831671-armv4.exe
   19-Dec-2003  23:25  4.10            1,063,664  Wincepb41-031219-kb831671-armv4i.exe
   19-Dec-2003  23:25  4.10            1,059,568  Wincepb41-031219-kb831671-armv4t.exe
   19-Dec-2003  23:25  4.10            1,039,088  Wincepb41-031219-kb831671-mips16.exe  
   19-Dec-2003  23:25  4.10            1,071,856  Wincepb41-031219-kb831671-mipsii.exe
   19-Dec-2003  23:25  4.10            1,071,856  Wincepb41-031219-kb831671-mipsii_fp.exe
   19-Dec-2003  23:25  4.10            1,075,952  Wincepb41-031219-kb831671-mipsiv.exe
   19-Dec-2003  23:25  4.10            1,075,952  Wincepb41-031219-kb831671-mipsiv_fp.exe
   19-Dec-2003  23:25  4.10            1,047,280  Wincepb41-031219-kb831671-sh3.exe
   19-Dec-2003  23:25  4.10            1,047,280  Wincepb41-031219-kb831671-sh4.exe
   19-Dec-2003  23:25  4.10            1,002,224  Wincepb41-031219-kb831671-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   Version            Size    File name
   --------------------------------------------------------------

   Path: Public\Dcom\Oak\Lib\Armv4\Debug
   15-Dec-2003  23:47                    712,536  Objex.lib
   15-Dec-2003  23:47                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Armv4\Retail
   15-Dec-2003  23:46                    380,662  Objex.lib
   15-Dec-2003  23:46                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Armv4i\Debug
   15-Dec-2003  23:46                    714,506  Objex.lib
   15-Dec-2003  23:46                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Armv4i\Retail
   15-Dec-2003  23:46                    381,996  Objex.lib
   15-Dec-2003  23:46                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Armv4t\Debug
   15-Dec-2003  23:46                    673,516  Objex.lib
   15-Dec-2003  23:46                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Armv4t\Retail
   15-Dec-2003  23:46                    377,108  Objex.lib
   15-Dec-2003  23:46                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Mips16\Debug
   15-Dec-2003  23:47                    652,012  Objex.lib
   15-Dec-2003  23:47                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Mips16\Retail
   15-Dec-2003  23:47                    335,928  Objex.lib
   15-Dec-2003  23:47                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Mipsii\Debug
   15-Dec-2003  23:47                    736,746  Objex.lib
   15-Dec-2003  23:47                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Mipsii\Retail
   15-Dec-2003  23:47                    384,150  Objex.lib
   15-Dec-2003  23:47                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Mipsii_fp\Debug
   15-Dec-2003  23:47                    736,962  Objex.lib
   15-Dec-2003  23:47                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Mipsii_fp\Retail
   15-Dec-2003  23:47                    384,364  Objex.lib
   15-Dec-2003  23:47                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Mipsiv\Debug
   15-Dec-2003  23:48                    740,592  Objex.lib
   15-Dec-2003  23:48                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Mipsiv\Retail
   15-Dec-2003  23:48                    386,084  Objex.lib
   15-Dec-2003  23:48                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Mipsiv_fp\Debug
   15-Dec-2003  23:47                    740,808  Objex.lib
   15-Dec-2003  23:47                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Mipsiv_fp\Retail
   15-Dec-2003  23:47                    386,298  Objex.lib
   15-Dec-2003  23:47                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Sh3\Debug
   15-Dec-2003  23:47                    645,194  Objex.lib
   15-Dec-2003  23:47                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Sh3\Retail
   15-Dec-2003  23:47                    349,668  Objex.lib
   15-Dec-2003  23:47                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Sh4\Debug
   15-Dec-2003  23:48                    645,170  Objex.lib
   15-Dec-2003  23:48                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\Sh4\Retail
   15-Dec-2003  23:48                    349,168  Objex.lib
   15-Dec-2003  23:48                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\X86\Debug
   15-Dec-2003  23:46                    551,980  Objex.lib
   15-Dec-2003  23:46                    307,200  Objex.pdb

   Path: Public\Dcom\Oak\Lib\X86\Retail
   15-Dec-2003  23:46                    318,828  Objex.lib
   15-Dec-2003  23:46                    307,200  Objex.pdb

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article.

MORE INFORMATION

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

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.
Modification Type:MinorLast Reviewed:5/27/2005
Keywords:kbBug kbfix kbQFE KB831671 kbAudOEM
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