Microsoft KB Archive/829196

= FIX: Memory Leaks When You Mount or Unmount FATFS Volumes =

Article ID: 829196

Article Last Modified on 8/18/2005

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APPLIES TO


 * Microsoft Encarta Reference Suite 2001

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SYMPTOMS
When you mount and unmount FAT File System (FATFS) volumes, you may notice a memory leak in the Filesys.exe process. For example, this may occur when you insert and remove Advanced Technology Attachment (ATA) Flash Personal Computer Memory Card International Association (PCMCIA) PC cards.



CAUSE
The FATFS caching implementation does not close a registry key when the FATFS caching implementation is being initialized.



Hotfix Information
A supported software update is now available from Microsoft as Windows CE 3.0 Core OS QFE 829196. 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

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 ---  25-Sep-2003  19:00  3.0.3.925    895,608  Wincepb30-030925-kb829196-arm720.exe 25-Sep-2003 19:02  3.0.3.925    940,664  Wincepb30-030925-kb829196-ppc403.exe 25-Sep-2003 19:02  3.0.3.925    940,664  Wincepb30-030925-kb829196-ppc821.exe 25-Sep-2003 19:01  3.0.3.925    936,568  Wincepb30-030925-kb829196-r3000.exe 25-Sep-2003 19:01  3.0.3.925    936,568  Wincepb30-030925-kb829196-r4100.exe 25-Sep-2003 19:00  3.0.3.925    887,416  Wincepb30-030925-kb829196-r4111.exe 25-Sep-2003 19:01  3.0.3.925    936,568  Wincepb30-030925-kb829196-r4300.exe 25-Sep-2003 19:00  3.0.3.925    895,608  Wincepb30-030925-kb829196-sa1100.exe 25-Sep-2003 19:00  3.0.3.925    920,184  Wincepb30-030925-kb829196-sh3.exe 25-Sep-2003 19:00  3.0.3.925    920,184  Wincepb30-030925-kb829196-sh4.exe 25-Sep-2003 19:01  3.0.3.925    920,184  Wincepb30-030925-kb829196-thumb.exe 25-Sep-2003 19:00  3.0.3.925    850,552  Wincepb30-030925-kb829196-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\ARM\ARM720\CE\Debug 20-Sep-2003 00:26                    691,208  Fatmain.lib

Path: Public\Common\Oak\Lib\ARM\ARM720\CE\Retail 20-Sep-2003 00:25                    375,550  Fatmain.lib

Path: Public\Common\Oak\Lib\ARM\SA1100\CE\Debug 20-Sep-2003 00:23                    690,484  Fatmain.lib

Path: Public\Common\Oak\Lib\ARM\SA1100\CE\Retail 20-Sep-2003 00:23                    374,798  Fatmain.lib

Path: Public\Common\Oak\Lib\MIPS\R3000\CE\Debug 20-Sep-2003 00:24                    788,300  Fatmain.lib

Path: Public\Common\Oak\Lib\MIPS\R3000\CE\Retail 20-Sep-2003 00:24                    436,204  Fatmain.lib

Path: Public\Common\Oak\Lib\MIPS\R4100\CE\Debug 20-Sep-2003 00:24                    788,708  Fatmain.lib

Path: Public\Common\Oak\Lib\MIPS\R4100\CE\Retail 20-Sep-2003 00:24                    435,558  Fatmain.lib

Path: Public\Common\Oak\Lib\MIPS\R4111\CE\Debug 20-Sep-2003 00:24                    649,982  Fatmain.lib

Path: Public\Common\Oak\Lib\MIPS\R4111\CE\Retail 20-Sep-2003 00:24                    341,920  Fatmain.lib

Path: Public\Common\Oak\Lib\MIPS\R4300\CE\Debug 20-Sep-2003 00:25                    788,300  Fatmain.lib

Path: Public\Common\Oak\Lib\MIPS\R4300\CE\Retail 20-Sep-2003 00:25                    435,570  Fatmain.lib

Path: Public\Common\Oak\Lib\PPC\PPC403\CE\Debug 20-Sep-2003 00:25                    767,278  Fatmain.lib

Path: Public\Common\Oak\Lib\PPC\PPC403\CE\Retail 20-Sep-2003 00:25                    392,590  Fatmain.lib

Path: Public\Common\Oak\Lib\PPC\PPC821\CE\Debug 20-Sep-2003 00:25                    767,278  Fatmain.lib

Path: Public\Common\Oak\Lib\PPC\PPC821\CE\Retail 20-Sep-2003 00:25                    392,590  Fatmain.lib

Path: Public\Common\Oak\Lib\SHx\SH3\CE\Debug 20-Sep-2003 00:23                    722,990  Fatmain.lib

Path: Public\Common\Oak\Lib\SHx\SH3\CE\Retail 20-Sep-2003 00:23                    389,162  Fatmain.lib

Path: Public\Common\Oak\Lib\SHx\SH4\CE\Debug 20-Sep-2003 00:23                    722,658  Fatmain.lib

Path: Public\Common\Oak\Lib\SHx\SH4\CE\Retail 20-Sep-2003 00:23                    388,828  Fatmain.lib

Path: Public\Common\Oak\Lib\THUMB\ARM720\CE\Debug 20-Sep-2003 00:26                    713,650  Fatmain.lib

Path: Public\Common\Oak\Lib\THUMB\ARM720\CE\Retail 20-Sep-2003 00:26                    393,354  Fatmain.lib

Path: Public\Common\Oak\Lib\X86\I486\CE\Debug 20-Sep-2003 00:22                    647,790  Fatmain.lib

Path: Public\Common\Oak\Lib\X86\I486\CE\Retail 20-Sep-2003 00:22                    324,040  Fatmain.lib



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
This bug exists in the FATFS caching implementation that was introduced in QFE update 22. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

295097 Poor Performance Using the FAT File System

The leak does not occur if the following registry key does not exist:

Keywords: kbbug kbfix kbqfe KB829196

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