NINA hung when "loop until sun altitude" should have triggered end of sequence operations

[Cedric Raguenaud]

My sequence (attached) should stop when the sun gets above -16 degrees (I think, unless I’ve done something wrong again). Overnight, when its altitude was 15.99, it hung in the middle of an image taking. I couldn’t stop the sequence by clicking on the stop button or move to the next step. I had to close NINA.

I also attach the sequence and a screenshot. Note the sun altitude in the current target (-15.99) and the real altitude in the next target (-5.82).

Version: 2.0 beta 31

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[Stefan B]

According to the logs, the condition did send an interrupt, but it seems like the camera driver was then stuck cancelling the exposure.

Can you check if this is a general driver issue, when you are cancelling an ongoing exposure?

[George Hilios]

Abort exposure should’ve put the camera in a state where the WaitForExposure loop should exit out, but I do see some ways I can make this more resilient. I’ll prepare the change today.

Thanks for the clear report, Cedric!

[Cedric Raguenaud]

I can definitively cancel exposures, but that's a good explanation. Thanks.

George, I’m using my driver because I’ve been moving from software to software. So your drive isn’t at fault.

[George Hilios]

Oh interesting! So this happened with ASCOM. I’ll check this out too - maybe there’s something we can improve further there.

[Cedric Raguenaud]

I’m trying to find out exactly what happened. It hasn’t happened since, so no detailed logs yet.

[George Hilios]

From looking at the code, the most likely thing that happened is a call to AbortExposure hung indefinitely within the ASCOM driver. Otherwise the cancellation token would’ve terminated the outer loop. Perhaps look there?

[Cedric Raguenaud]

Yes. I suspected it was that, but played with it for a while today and didn’t get any issue. Also I can’t see in the code what could hang as everything has a timeout. I’ll keep looking.

[Stefan B]

ascom driver problem

[Stefan B]

Removing version: 2.0 Beta (automated comment)