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raspberrypi / rpicam-apps

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dmaHeap allocation failure for rpicam-apps0 #707

Closed jsalsburg closed 2 months ago

jsalsburg commented 2 months ago

Describe the bug Running AllSky App on RPi4; RPiArduCam_16_MP. AllSky reports "capture program stopped". This appears to happen when AllSky enters 'end of night/begin day' some mornings but not always.

Bug report AllSky reports in capture_RPi_debug.txt - dmaHeap allocation failure for rpicam-apps0 ERROR: failed to allocate capture buffers for stream

Additional context The AllSky log reports that this command will work sometimes and not other times. libcamera-still --output '/home/rpi/allsky/tmp/image-20240828060449.jpg' --timeout 1 --nopreview --width 4656 --height 3496 --shutter 4077762 --analoggain 1 --quality 100

I do not have easy access to the headless RPi, it is remote and inconveniently inaccessible.

AllSky does not recover from this error without reboot.

System Messages
naushir commented 2 months ago

It looks like you are running out of memory to allocate framebuffers from the CMA heap. Have you adjusted anything in the config.txt file on the system?

jsalsburg commented 2 months ago

Thank you for responding. I may be causing this issue. To forgo the limitations of the RPi4 SD card, I attached a USB/SSD to the RPi and altered AllSky to store images to the SSD instead. I may have underestimated the capacity of the SSD and included too many DAYS_TO_KEEP=30, so I changed it to 20 days and deleted 10 days on the SSD. We will see if this solves the issue.

naushir commented 2 months ago

Closing this issue now. Please reopen if you still have problems.

jsalsburg commented 2 months ago

Hello. Sorry I did not respond sooner. I had to wait several days to determine if the problem is reoccurring, and it is reoccurring. The only change I made to config.txt was at the time I installed the camera; after the [all] line at the end. Could this be the source of the errors?

[all]

dtoverlay=imx519

naushir commented 2 months ago

It's unlikely - you will need that to load the correct sensor driver anyway.

What is the output of rpicam-hello --version? Maybe also try adding --buffer-count 1 --viewfinder-buffer-count 3 to the command line and see if that helps?