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I am trying to build some machine vision software inside docker containers, it has worked previously, but now both devices are not able to access the camera.

It seems to be a configuration/update problem, as it has worked previously. I am not sure which of the updates could be the culprit.

Either calling "raspistill -i test.jpg" never returns (freeze) or this error appears:

mmal: mmal_vc_shm_init: could not initialize vc shared memory service
mmal: mmal_vc_component_create: failed to initialise shm for 'vc.camera_info' (7:EIO)
mmal: mmal_component_create_core: could not create component 'vc.camera_info' (7)
mmal: Failed to create camera_info component

As it has previously worked in the container, access to the device, and hardware-challenges are ruled out.

Any hints are appreciated.

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Looking at the error message, you probably don't have the correct permissions. Try adding privileged: true to your docker-compose.yml file (or something like --privileged=true if you are using docker run).

(I assume there was a typo when you posted your command. To test, it should be raspistill -o test.jpg.)

  • Thanks, typo indeed. But adding the privileged thing did not change anything. – Niels Jakob Buch Sep 12 at 18:21

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