Article ID: 328468
Article Last Modified on 2/20/2007
APPLIES TO
- Microsoft Windows 2000 Server
- Microsoft Windows 2000 Professional Edition
- Microsoft Windows 2000 Advanced Server
This article was previously published under Q328468
SYMPTOMS
If you disconnect a serial port while the serial port driver is reading data from a universal asynchronous receiver-transmitter (UART)-based serial device, the standard Microsoft serial port driver can enter an infinite loop in its interrupt service routine on a Microsoft Windows 2000-based computer.
You may receive the following Stop error:
CAUSE
This problem occurs when a serial port is removed from the computer while the computer is running. The serial port driver performs a test loop until the Line Status Register clears its Read bit.
RESOLUTION
Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
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.
Prerequisites
No prerequisites are required.
Restart requirement
You do not have to restart your computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
File information
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 -------------------------------------------------------------- 21-Sep-2003 00:36 5.0.2195.6824 14,160 Serenum.sys 21-Sep-2003 00:35 5.0.2195.6824 60,880 Serial.sys
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 numbers to view the articles in the Microsoft Knowledge Base:
816915 New file naming schema for Microsoft Windows software update packages
824684 Description of the standard terminology that is used to describe Microsoft software updates
Additional query words: serial port
Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe kbwin2000presp5fix KB328468
