When a computer that is running Windows XP is accessing USB 2.0
hard disks under heavy stress conditions, you may receive a bugcheck 0xFE
message similar to the following:
In a USB Driver
bugcheck, the first parameter is a USB bugcheck code that has the following
- Argument 1: 00000002, BAD_URB. The USB client driver
has submitted a USB Request Block (URB) that is still attached to another
Input/Output (I/O) request packet (IRP) that is still pending in the USB
- Argument 2: 8162ea78, Address of the
- Argument 3: 81707950, Address of the IRP
that is passed in.
- Argument 4: 8156db7c, Address of the URB
that caused the error.
This behavior occurs because in the NT Kernel two threads
try to start an I/O operation on the same packet.
Service pack information
To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
How to obtain the latest Windows XP service pack
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix. Note
If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note
The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language. 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 SP Level
12-Nov-2002 23:21 5.1.2600.106 1,848,320 Ntkrnlmp.exe SP1
12-Nov-2002 23:21 5.1.2600.106 1,902,080 Ntkrnlpa.exe SP1
12-Nov-2002 23:21 5.1.2600.106 1,874,944 Ntkrpamp.exe SP1
12-Nov-2002 23:21 5.1.2600.106 1,880,064 Ntoskrnl.exe SP1
13-Nov-2002 00:28 5.1.2600.1143 1,892,352 Ntkrnlmp.exe SP2
13-Nov-2002 00:28 5.1.2600.1143 1,948,160 Ntkrnlpa.exe SP2
13-Nov-2002 00:28 5.1.2600.1143 1,921,024 Ntkrpamp.exe SP2
13-Nov-2002 00:28 5.1.2600.1143 1,924,480 Ntoskrnl.exe SP2
has confirmed that this is a problem in the Microsoft products that are listed
at the beginning of this article.
This problem was first corrected in Microsoft Windows XP Service Pack 2.