Out of memory error when attempting to use Camera Module on RPi4

[Jonathan Cave]

Image: Ubuntu Core 20 armhf
Devices: Raspberry Pi 4 2GB / 4GB / 8GB
Camera Module v2.1

Steps to reproduce:

* Install the image
* Edit /writable/system-data/var/lib/snapd/seed/config.txt to ensure the following lines are present:
start_x=1
gpu_mem=128
* Reboot
* sudo snap install checkbox --channel=uc20/stable --devmode
* sudo checkbox.checkbox-cli
* hit "/" then type "camera" to search for the camera tests
* Press spacebar on the automated ones to select them, then enter
* It will take you to another screen where you can deselect things, don't worry about it - just press "T" to start testing
* It will ask you to confirm that you have a camera attached, just select yes, then "T" again to start testing

The modules/cables in the lab have been moved to rpi2/rpi3 to confirm they are working

[Jonathan Cave (jocave)]

Board info for rpi4b4g-002:
Hardware : BCM2711
Revision : c03111
...
Model : Raspberry Pi 4 Model B Rev 1.1

[Jonathan Cave (jocave)]

Board info for rpi4b8g-002:
Hardware : BCM2711
Revision : d03114
...
Model : Raspberry Pi 4 Model B Rev 1.4