Error "-61017" after installing the latest update from NI update service

[Flow_Cat]

After the last update from the NI-Update service I get error -61017 from my RT target.

This indicates that the FPGA VI needs compiling, however the signature is OK and the VI runs in interactive mode from the project explorer without problems. When you configure the "Open FPGA Reference" node to look for the Bitfile instead of the VI then there is no error however the RT processor is running far over 100% load.... It was always running at 70% now it's solid at 100% resulting in poor behaviour of my application.

The last update involved:

-- Ni-Update service itself

-- PXI Platform services 17.5.1

-- LabVIEW runtime 2017 SP1

I am running LabVIEW 2016 and see the problem on my cRIO-9074

Is there anyone with the same experience and hopefully a solution?

[andres.vargas]

Hi there, 

Have you tried reverting to the older version of the updated software in order to confirm that this is the reason of the issue?

[Flow_Cat]

Hi Notanae,

Sorry for the late response but I did no have access to my system for several days.

We had to switch it off due to some installation work but now it's powered on again and the network issued new IP addresses.

The funny thing is that with the new IP address I don't see error -61017 anymore but I still have a too high processor load.

To come back to your suggestion: I can modify sections of the LabVIEW package (from control panel - add/remove programs) but I can not find a way to revert an update to the previous version. This might be a stupid question but do you have instructions on how to do this?

Anyway the problem is almost certainly not related to the update, as far as I can see now it's more likely that something in our network is causing the problems.
I will do some more experiments and when I find something I will let you know.

[andres.vargas]

I agree that this does not look like the real problem. However to do that you would have to uninstall the specific drivers/software and then install the previous version manually from NI's website.

[Flow_Cat]

The problem seems to be solved, here are some conclusions:

The update was not the cause of the problems it was just an unfortunate coincidence.

The cause of the error -61017 is still unknown but the workaround I used is also recommended by the help desk.

The high processor load was caused by using (too many?) DMAs.

In my system I use an expansion chassis and for this I needed extra DMAs.

I was allready using 3 DMAs (this is normally the limit for the 9074 chassis) I also used two DMA's for the expansion chassis (9148) and this caused the processor overload. It seems that the processor in the 9074 chassis can not handle more than 4 DMAs. After removing one DMA and rewriting some code to handle the data transport in another way the processor load was back to normal again.

[andres.vargas]

Thanks for filling me in, I am glad it is working now.