A Crash Occurs in Ks.sys on Computers with Intel Hyper-Threading CPU

SYMPTOMS

Ks.sys may crash if you repeatedly start and stop a Hauppauge playback graph on a computer with an Intel CPU that uses Hyper-Threading technology.

CAUSE

I/O request packets (IRPs) are completed on the pending queues without being called back. The routine does not undo the preparation for the request. That causes resources to leak. The data buffer address for data SRBs is not restored to the correct address from the mapped address. Therefore, the FreeFrame routine calls the wrong address when the frames are freed from the allocator.

RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Microsoft Windows XP.

Hotfix information

A supported fix is now available from Microsoft, but it is only intended to correct the problem described in this article. Only apply it to systems that are experiencing this specific problem. This fix may receive additional testing to further ensure product quality. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Windows XP service pack that contains this fix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;en-us;cntactms

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix 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 -------------------------------------------------------- 30-Jan-2003 17:55 5.3.2600.1164 45,056 Stream.sys

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Windows XP Service Pack 2.

MORE INFORMATION

This hotfix works only on computers that are running Windows XP Service Pack 1 (SP1) or Service Pack 1a (SP1a).

APPLIES TO

. Microsoft Windows XP Professional SP1

. Microsoft Windows XP Home Edition SP1

 © 2006 LBCI Corporation. All rights reserved Eng.Hanna Ata Lahoud