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FIX: IST cannot be scheduled in real time when an interrupt occurs in Windows Embedded Compact 7

View products that this article applies to.

This article describes an issue that occurs when there is an interrupt in Windows Embedded Compact 7. An update is available to resolve this issue. Before you install this update, all previously issued updates for this product must be installed.

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Symptoms

When there is an application that constantly writes a log file in the background in a normal priority thread, the interrupt service thread (IST) cannot be scheduled within 100 us. The IST latency may approach 500 us.

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Resolution

Download information

The Windows Embedded Compact 7 Monthly Update (November 2014) is now available from Microsoft. To download this Windows Embedded Compact 7 monthly update, go to the following Microsoft Download Center website:

Windows Embedded Compact 7 updates

The kind of processor that each file applies to is visible in the name of each file in the "File information" section.

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More Information

Restart requirement

After you apply this update, you must perform a clean build of the whole platform. To do this, use one of the following methods:
  • On the Build menu, click Clean Solution, and then click Build Solution.
  • On the Build menu, click Rebuild Solution.
You do not have to restart the computer after you apply this software update.

Update replacement information

This update does not replace any other updates.
File information
The English version of this software update package 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 item in Control Panel.

Files that are included in this hotfix package


File nameFile sizeDateTimePath
Nkmain.lib2,001,36814-Nov-201403:35Public\Common\Oak\Lib\X86\Retail
Nkprmain.lib2,043,91414-Nov-201403:35Public\Common\Oak\Lib\X86\Retail
Nkmain.lib3,192,79414-Nov-201403:35Public\Common\Oak\Lib\X86\Debug
Nkprmain.lib3,240,28414-Nov-201403:35Public\Common\Oak\Lib\X86\Debug
Nkmain.lib3,052,23614-Nov-201403:35Public\Common\Oak\Lib\X86\Checked
Nkprmain.lib3,094,48414-Nov-201403:35Public\Common\Oak\Lib\X86\Checked
Nkmain.lib2,404,72414-Nov-201403:35Public\Common\Oak\Lib\Armv5\Retail
Nkprmain.lib2,462,92414-Nov-201403:35Public\Common\Oak\Lib\Armv5\Retail
Nkmain.lib3,917,09414-Nov-201403:35Public\Common\Oak\Lib\Armv5\Debug
Nkprmain.lib3,987,62614-Nov-201403:35Public\Common\Oak\Lib\Armv5\Debug
Nkmain.lib3,526,83014-Nov-201403:36Public\Common\Oak\Lib\Armv5\Checked
Nkprmain.lib3,584,06614-Nov-201403:36Public\Common\Oak\Lib\Armv5\Checked
Nkmain.lib2,404,77014-Nov-201403:36Public\Common\Oak\Lib\Armv6\Retail
Nkprmain.lib2,462,97014-Nov-201403:36Public\Common\Oak\Lib\Armv6\Retail
Nkmain.lib3,916,44414-Nov-201403:35Public\Common\Oak\Lib\Armv6\Debug
Nkprmain.lib3,986,98014-Nov-201403:35Public\Common\Oak\Lib\Armv6\Debug
Nkmain.lib3,526,85014-Nov-201403:35Public\Common\Oak\Lib\Armv6\Checked
Nkprmain.lib3,584,08614-Nov-201403:35Public\Common\Oak\Lib\Armv6\Checked
Nkmain.lib2,398,25414-Nov-201403:36Public\Common\Oak\Lib\Armv7\Retail
Nkprmain.lib2,456,44614-Nov-201403:36Public\Common\Oak\Lib\Armv7\Retail
Nkmain.lib3,906,10614-Nov-201403:35Public\Common\Oak\Lib\Armv7\Debug
Nkprmain.lib3,975,80414-Nov-201403:35Public\Common\Oak\Lib\Armv7\Debug
Nkmain.lib3,516,42014-Nov-201403:35Public\Common\Oak\Lib\Armv7\Checked
Nkprmain.lib3,573,43414-Nov-201403:35Public\Common\Oak\Lib\Armv7\Checked
Nkmain.lib2,168,63014-Nov-201403:36Public\Common\Oak\Lib\Mipsii\Retail
Nkprmain.lib2,215,51014-Nov-201403:36Public\Common\Oak\Lib\Mipsii\Retail
Nkmain.lib3,661,69814-Nov-201403:35Public\Common\Oak\Lib\Mipsii\Debug
Nkprmain.lib3,730,33214-Nov-201403:35Public\Common\Oak\Lib\Mipsii\Debug
Nkmain.lib3,228,54614-Nov-201403:35Public\Common\Oak\Lib\Mipsii\Checked
Nkprmain.lib3,274,65414-Nov-201403:35Public\Common\Oak\Lib\Mipsii\Checked
Nkmain.lib2,228,77414-Nov-201403:35Public\Common\Oak\Lib\Mipsii_fp\Retail
Nkprmain.lib2,275,88014-Nov-201403:35Public\Common\Oak\Lib\Mipsii_fp\Retail
Nkmain.lib3,737,77014-Nov-201403:35Public\Common\Oak\Lib\Mipsii_fp\Debug
Nkprmain.lib3,806,74214-Nov-201403:35Public\Common\Oak\Lib\Mipsii_fp\Debug
Nkmain.lib3,286,23614-Nov-201403:35Public\Common\Oak\Lib\Mipsii_fp\Checked
Nkprmain.lib3,332,34814-Nov-201403:35Public\Common\Oak\Lib\Mipsii_fp\Checked
Nkmain.lib2,038,44214-Nov-201403:35Public\Common\Oak\Lib\Sh4\Retail
Nkprmain.lib2,080,23814-Nov-201403:35Public\Common\Oak\Lib\Sh4\Retail
Nkmain.lib3,279,52414-Nov-201403:36Public\Common\Oak\Lib\Sh4\Debug
Nkprmain.lib3,329,18814-Nov-201403:36Public\Common\Oak\Lib\Sh4\Debug
Nkmain.lib2,972,94614-Nov-201403:35Public\Common\Oak\Lib\Sh4\Checked
Nkprmain.lib3,010,46014-Nov-201403:35Public\Common\Oak\Lib\Sh4\Checked

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Status

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

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References

For more information about software update terminology, see Description of the standard terminology that is used to describe Microsoft software updates .

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Keywords: kbfix, kbsurveynew, kbexpertiseadvanced, atdownload, kb

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Article Info
Article ID : 3008305
Revision : 1
Created on : 1/7/2017
Published on : 12/9/2014
Exists online : False
Views : 165