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Urgent Thread active problem.

Posted on 2002-04-18
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Last Modified: 2013-11-20
I have one MFC application. Some time on one Win 2000 Sp2 machine showing one problem.
Problem is after exiting my app some Treads remaining active.The process is not active on taskmanager but pslist showing the process as active. Any idea ??????
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Question by:job_s
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Expert Comment

by:Roshan Davis
ID: 6952886
MSDN Says

SYMPTOMS
A process continues to exist after a call to the TerminateProcess function on that process has successfully returned.

CAUSE
When there is a request to terminate a process through the TerminateProcess function, Windows stops all the user-mode activity of the target process. However, the target process cannot actually exit until all kernel-mode activity specific to that process is complete. This means that the target process continues to exist until all of its threads have left kernel-mode and all pending IO has been canceled.

This situation occurs as the result of a device driver not releasing a thread or not canceling IO. The process continues to exist until the IO completes and all threads in the process are released from kernel mode.

GOOD LUCK
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by:job_s
ID: 6952978
Do u have any idea that how much time it may take to complete the opertaion like pending IO ????
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Expert Comment

by:Roshan Davis
ID: 6953073
If u r not closing a kernel object in user mode not properly, this may cause problems....


Roshmon
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Expert Comment

by:DanRollins
ID: 6959149
Sometimes you can call CancelIO( handle ).  It is not availble on Win 95.

-- Dan
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by:job_s
ID: 6962773
hi frieds,

    Thanks for Ur responses.I have find out the problem myself .

job_s
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Author Comment

by:job_s
ID: 6962780
I have find out the solution my self.
The problem was because of teminal services running on that system.When another terminal user runs that APP.It will be shown as a proces on the pslist.

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by:DanRollins
ID: 6963585
Good info.  I suggest that you post to Community Support and ask to have your points refunded since you found the answer yourself.  

I recommend that this NOT be deleted, but rather saved as a PAQ.

-- Dan
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