My OpenWrt device has 128 MB of memory. When installing a Python package over pip3, the device returns with an out-of-memory error:
ERROR: Could not install packages due to an EnvironmentError: [Errno 28] No space left on device
I can confirm we run out of memory mid-install from monitoring the usage. So I decided to create a temporary swap file:
$ dd if=/dev/zero of=/swapfile bs=1024 count=524288` $ mkswap /swapfile $ chown root:root /swapfile $ chmod 0600 /swapfile $ swapon /swapfile
This works without error (the kernel supports swap files as per our make menuconfig).
The next time we try to install the package, we see our swap memory is being used:
total used free shared buff/cache available Mem: 124864 17060 98780 1192 9024 78860 Swap: 524284 13056 511228
However right as the swap space starts to fill the error pops up again on install.
Also here is what shows with
Filesystem 1K-blocks Used Available Use% Mounted on /dev/root 4352 4352 0 100% /rom tmpfs 62432 12916 49516 21% /tmp /dev/mmcblk0 15248300 619224 13834788 4% /overlay overlayfs:/overlay 15248300 619224 13834788 4% / tmpfs 512 0 512 0% /dev
Also have tried installing the package with
--no-cache-dir flag without success.
I think /tmp reaches 100% at the time of the error. Is there a way to expand this?