BananaPi M1 stops to work


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Armbianmonitor:

 

Hello,

 

my BananaPi M1 sometimes just stops working. The maximum uptime is 5 days. Usually the time is shorter. The system simply hangs. I can no longer access the system via SSH. When I connect a monitor to HDMI, nothing is displayed, so I can log in.

I have connected an external hard drive that is self-powered. I know the stories with the power supply. I have run ' stress -c 2 -m 1 '. The system remains stable.

Time CPU load %cpu %sys %usr %nice %io %irq CPU PMIC DC-IN C.St

19:09:19: --- 0.69 10% 5% 5% 4% 0% 0% 49.3°C 42.4°C 5.10V 0/6
19:09:49: --- 2.16 100% 33% 66% 0% 0% 0% 50.2°C 43.6°C 5.10V 0/6
19:10:16: --- 3.18 100% 33% 65% 0% 0% 1% 50.2°C 44.0°C 5.06V 0/6
19:10:47: --- 3.58 100% 33% 64% 0% 0% 1% 51.0°C 44.4°C 5.05V 0/6
19:11:17: --- 3.96 100% 33% 64% 0% 0% 1% 51.4°C 44.9°C 5.03V 0/6
19:11:47: --- 4.34 100% 33% 65% 0% 0% 1% 51.1°C 45.0°C 5.09V 0/6
19:12:17: --- 4.42 100% 33% 65% 0% 0% 1% 51.3°C 45.3°C 5.07V 0/6

 

I also executed 'armbianmonitor -u'.The log is here: http://ix.io/2lzX

 

I checked syslog, daemon.log, user.log, armbian-ramlog.log for errors. With my amateurish understanding I did not find any error entries. In which logs can I still look up to search for errors?

 

I have installed armbian buster minimal. Additionally I have pihole, transmission (to seed armbian torrents https://forum.armbian.com/topic/4198-seed-our-torrents/) and syncthing running. Other programs I have not installed yet.

 

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Armbian is a community driven open source project. Do you like to contribute your code?

There was no /etc/default/cpufrequtils in my case but /etc/default/cpufrequtils.dpkg-old instead. I've copied it to /etc/default/cpufrequtils, replaced 'ondemand' to 'performance' and rebooted a device.

$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
performance

Uptime is 23 hours at the moment.

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This tip saved me from buying a new bananapi m3. 

The second bananapi that was increasingly unstable : just stopped responding. In the past only once in a few weeks, nowadays every day. So unusable.

I had set it to email me every 5 minutes and it also stops doing that. 

 

Now I have set governor to performance and it's up for almost a day now. So seems good so far.

 

If anyone has an idea why this governor change works I would certainly like to understand it. Probably some cpu-state in rest that it can't come out of? There are no signs anywhere of a crash. 

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