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Timed loops freeze labview when 2 simultaneous VIs (loaded with events) XP Only

Hello,

The following VI that uses "timed loops" and "events" crashes and stalls labview on my two XP machines but runs fine on my Vista machine.

Essentially the code contains 2 VIs, with only contains 1 event structure, and 1 timed loop each. When I load one VI with the other, and try to exit the loaded VI it crashes my system.

To replicate:

1.Open project using an Windows XP machine.

2. Open parent VI.

3. Run parent VI.

4. Press the button that says run in the middle of the VI.

5. Another VI will popup, click the close button on this VI.

The system should stall or run very slowly at this point.

Let me know if you guys can replicate this. These VIs run fine on a Vista system. The vista multithread code is likely different from the XP causing this problem. Also if this has already been reported or fixed in 8.5.1, it would be nice to know too.

-Greg Sonnenfeld
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Hi Gsonnenf,

I ran your VI's on my XP system under LabVIEW 8.5.
I did not get any error and the system did not stall/crash.
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Hi Greg,

I also tried this on my computer and didn't see the behavior you described. I didn't see any reported issues that were similar. The way the timed loops are configured allows LabVIEW to pick which processor it is using. Are you running the same version of LabVIEW on both computers?

Regards,

Hillary E
National Instruments
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