After quitting cpu runs at 100%

hi!
im using an external dll that runs a thread to get data and pass it to LabView. When i quit my LabView application, it usually - not always - does the following: Everything seems right, but the CPU starts running at 100%, and LabView must be restarted.
Im using Trace messages in my dll, and based on that it's pretty sure that the thread stops correctly.
Any idea?
Thanks!

Well, it keeps being a problem if it is your VI (or a thread associated with it) that keeps running at 100% load.
So it is possibly mandatory to dig into the code and find the area which controls the blocking thread. It could be helpful if you post your main VI of the application.
As far as i understand it, the current problem looks like this:
1) Open LabVIEW developement system
2) Open the project
3) Run the project
4) Quit the execution using the QUIT button on your user interface
5) Close the whole project
6) Reopen project
7) Rerun project
8) Quit and close project
9) Quit LabVIEW developement system
Step 1)-3) work correctly in proper timing/CPU load. Starting from step 4) you see 100% CPU load till including step 6). Step 8) again creates 100% load. Step 9) leaves the LabVIEW.exe process still active in task manager, but all windows are closed.
Is that correct? If not, please mark the differences.
What happens with blank VIs (Open LV, create empty VI, run it, close it, close LV)?
If a blank VI is working as expected, what happens if you just use a dummy VI accessing your DLL?
Norbert
CEO: What exactly is stopping us from doing this?
Expert: Geometry
Marketing Manager: Just ignore it.

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Hi
I'm using a MacBook (white) from late 2007. ("MacBook3,1")
I was running 10.5 until recently and after having done a software update, the CPU would constantly run at 100% (and of course the fans run on high speed all the time, which is very annoying).
I found several hints on the web saying that many people have had this problem and the suggested fix was to stop syslogd, delete the asl.db file and restart syslogd:
sudo launchctl stop com.apple.syslogd
sudo rm /var/log/asl.db
sudo launchctl start com.apple.syslogd
I tried that, it didn't help.
So I thought I'd try to upgrade the MacBook to Snow Leopard, since I have the install DVD.
I did that, upgrade ran fine, but sadly the problem with the constant high CPU usage was still there afterwards.
So I wiped the hard drive (actually, I just wiped the OSX partition, not my Bootcamp/Windows partition) and re-installed Snow Leopard from scratch. (it's a "10.6.3" DVD).
I was very surprised to see that this brand new, fresh 10.6 installation was showing the same symptoms:
CPU constantly over 90% usage.
The top processes are "kernel_task" (usually at 100%) and syslogd (usually at 60% or more, with bzip2 hogging up the rest)
I have absolutely no idea what's causing this, since this basic installation of 10.6 shows the same symptoms.
If I boot into Windows XP (Bootcamp), then everything is fine: CPU usage while the computer is idle is pretty much zero and the fans are quiet.
Does anybody have any ideas?
Thanks in advance for your tips!

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After quitting cpu runs at 100%

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