[Motmot] camera crash

[Andrew Straw]

ros at caltech.edu wrote:
> Hi Andrew,
> 
> Having major problems with my camera.
> 
> Btw I couldn't find the new libcamiface package update you indicated in
> the email (maybe you updated my computer?), on synaptic manager I have the
> latest version ... so it looks like I'm up to date.

Yes, I just walked over to your computer and all the packages were up to
date. It said it needed a restart, so I rebooted it and replugged the
camera, just to make sure it was not in any kind of weird state...

> The camera crashed everytime I tried to go to a smaller ROI, tried a few
> times and kept crashing. Then in the last crash I got this error on camera
> initialization: "camera thread appears to have died unexpectedly"
> I tried replugging camera, reseting bus and restarting computer, but keep
> getting the error.

Is this immediately upon going to the smaller ROI or just after some
seconds or minutes?

...and then I was successfully able to get about 733 fps at 80x80 pixels
on your Basler A602f. Decreasing to 64x64 caused a crash. And then the
kernel appeared to be in a wedged state -- replugging the camera no
longer helped. So a reboot is necessary.

I'm afraid there's not much I can do about the linux kernel getting
internally screwed up right now... We could think about using a
different camera that doesn't do weird stuff at 64x64 pixels, though. I
have one you could borrow that should probably work. (A Pt. Grey
Dragonfly Express.)

-Andrew

-- 
Andrew D. Straw, Ph.D.
California Institute of Technology
http://www.its.caltech.edu/~astraw/