rpi3 freezes every few days .. need help

nagaculun

@sdetweil
It still freezes even I made the modification.

sdetweil

Fozi

@nagaculun Are you sure that the crontab is really executed? ssh into the RPI, execute ‘htop’ and check the uptime. The uptime should be the difference between the cronjob execution and the actual time.

For setting up the crontab, that reboots the RPi I needed priviledged rights.

$ sudo crontab -e
 and then insert, e.g.

15 1,9,17 * * * sudo shutdown -r now >/dev/null 2>&1

This reboots the RPi at 01:15, 9:15 and 17:15 every day (every 8 hrs.).
Note the two ‘sudo’ for editing the crontab and initiating the shutdown.

Fozi

Some experiences I made:

My “productive” MM runs on a RPi 3B+. I have also a normal RPi 3B, which I use as a test bench in the exact same configuration as my MM (I’ve use a cloned SD card).
Surprisingly, the 3B’s memory is not filling up and stalling like my 3B+.
God knows why.

nagaculun

@Fozi

@Fozi said in rpi3 freezes every few days .. need help:

@nagaculun Are you sure that the crontab is really executed? ssh into the RPI, execute ‘htop’ and check the uptime. The uptime should be the difference between the cronjob execution and the actual time.

For setting up the crontab, that reboots the RPi I needed priviledged rights.
$ sudo crontab -e
 and then insert, e.g.

15 1,9,17 * * * sudo shutdown -r now >/dev/null 2>&1
This reboots the RPi at 01:15, 9:15 and 17:15 every day (every 8 hrs.).
Note the two ‘sudo’ for editing the crontab and initiating the shutdown.

Yes, as I literally wait and see when it happens.