Omega2S out of memory error

slx

Hi, before anything, I did my search and could not find a solution.

I have been trying to use python with MQTT using paho-mqtt library and get Out of memory 12 error as below:

root@Omega-6A5A:~# pip3 install paho-mqtt
...
 Running command python setup.py egg_info
    Error [Errno 12] Out of memory while executing command python setup.py egg_info
Could not install packages due to an EnvironmentError.
Traceback (most recent call last):
  File "/install.py", line 318, in run
  File "/resolve.py", line 102, in resolve
  File "/resolve.py", line 256, in _resolve_one
  File "/resolve.py", line 209, in _get_abstract_dist_for
  File "/prepare.py", line 298, in prepare_linked_requirement
  File "/prepare.py", line 126, in prep_for_dist
  File "/req_install.py", line 473, in run_egg_info
  File "/misc.py", line 659, in call_subprocess
  File "/subprocess.py", line 729, in __init__
  File "/subprocess.py", line 1295, in _execute_child
OSError: [Errno 12] Out of memory

Well, I figure out it was lack of /overlay space.. then, I added SD card support in my Omega's filesystem:

root@Omega-6A5A:~# df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/root                 7.8M      7.8M         0 100% /rom
tmpfs                    29.2M    236.0K     29.0M   1% /tmp
/dev/mmcblk0              7.3G     41.9M      6.9G   1% /overlay
overlayfs:/overlay        7.3G     41.9M      6.9G   1% /
tmpfs                   512.0K         0    512.0K   0% /dev
/dev/mtdblock6            6.6M    468.0K      6.1M   7% /mnt/mtdblock6

Yet, canot install paho-mqtt due to memory issues.
Am I missing something?

Thanks!!

tjoseph1

<<
/dev/mmcblk0 7.3G 41.9M 6.9G 1% /overlay
<<

Doesn't it have to be /dev/mmcblk0p1, the "partition 1" of /dev/mmcblk0 ?

Thanks..

slx

Well, I'll try to fix it and get back.

For the moment, I could have paho-mqtt installed manually. (download .tar.gz, tar, python setup.py install).

Thanks.

tjoseph1

@slx :

Sure. This was how it went, when I tried to install.

root@Omega-745F:/# pip3 install -U pip setuptools wheel
..
Successfully installed pip-20.2.3 setuptools-50.3.0 wheel-0.35.1

root@Omega-745F:/# pip3 install paho-mqtt
..
Successfully built paho-mqtt
Installing collected packages: paho-mqtt
Successfully installed paho-mqtt-1.5.1

I have gcc installed, not sure if it helped to "built paho-mqtt" as seen above.

root@Omega-745F:/#df -hT (mmcblk0 is 8GB, mmcblk0p1 is 4GB)
..
/dev/mmcblk0p1 ext4 3.9G 156.4M 3.5G 4% /overlay
overlayfs:/overlay overlay 3.9G 156.4M 3.5G 4% /
..
Thanks..

Barnes1

Thanks for sharing this information!