Program hanging in LabVIEW when using 8.2.1 or later

[altenbach]

It is Time again for the June Bugs!! 😄 Let's retire the May Bug List and start a new thread. 

1. Each post here should only contain a brief description of a bug, together with a link to the thread where it is being discussed.
2. One post/bug!
3. One bug/post!
4. No discussion of bugs. All discussions of a bug must take place in the original linked thread.

    

Message Edited by altenbach on 06-01-2008 12:57 AM

[chrisger]

hi there

here's one regarding differing barcode scanner inputs between VI and EXE version:

http://forums.ni.com/ni/board/message?board.id=BreakPoint&message.id=5564&jump=true

(i posted it in the wrong board)

[Ben]

Anoying bug with LV switching to the FP when trying to do stuff in the BD, see here, CAR to follow.

Ben

[parthabe]

See here.

[Ray.R]

Placing a Rich Text Box on a Front Panel causes a warning message (Systems.Windows.Forms loaded from different location) when opening the VI.

http://forums.ni.com/ni/board/message?board.id=170&message.id=330901

[chrisger]

hi there

Here's one where a refnum steels RETURN keys: http://forums.ni.com/ni/board/message?board.id=170&thread.id=330980&jump=true

[Ray.R]

---

JoeLabView wrote:

Placing a Rich Text Box on a Front Panel causes a warning message (Systems.Windows.Forms loaded from different location) when opening the VI.

http://forums.ni.com/ni/board/message?board.id=170&message.id=330901

---

Bug fixed in LV8.5.1

[altenbach]

http://forums.ni.com/ni/board/message?board.id=170&view=by_date_ascending&message.id=331373

[Ben]

See here on LAVA.

Ben

[parthabe]

http://forums.ni.com/ni/board/message?board.id=170&thread.id=332025

I had a problem recently where a program would randomly hang for several seconds. When the program would hang, my DAQ buffers would overflow and cause a shutdown of my DAQ loop. Over the course of troubleshooting, I found that opening the right-click menu on the Windows taskbar tab of a VI would cause that VI to freeze. The background processing would still be running, but the front panel would freeze. The CPU usage would also increase to 50% on dual core or hyperthreaded CPUs and 100% on single core/non-hyperthreaded CPUs. This would happen even if the application was compiled and just using the run-time engine. Through further investigation, I found that this did not happen on LabVIEW 8.20, but it would happen on all later versions. The version my software was running on was 8.5, so I downgraded to 8.20 and the problem has gone away.

Here is a link to the troubleshooting thread: http://forums.ni.com/ni/board/message?board.id=170&message.id=286799&query.id=61078#M286799

Application pauses for up to 4 seconds at random places in processing loop

http://forums.ni.com/ni/board/message?board.id=170&message.id=286799&query.id=61078#M286799