Random reboots

[axeleroy]

Hi,

 

I'm very pleased with my Helios 64, but since I updated to Armbian 20.11.6 (from 20.08.11 or 21, not really sure) it reboots at random times: it can run fine for over two weeks and reboot twice in 36 hours, always when idling.

It's running OMV as well a multiple Docker containers: PiHole, Wireguard, Nginx, Transmission, restic-server and n8n.

 

Is it a common issue? What fixes do you recommend? What should I look for to diagnose the issue?

 

Thank you.

 

Edit: forgot to mention that I'm using SnapRAID and mergerFS, as well as NFS shares.

Edited February 4, 2021 by axeleroy

[Werner]

Providing logs with 

armbianmonitor -u

 helps with troubleshooting and significantly raises chances that issue gets addressed.

[axeleroy]

Oh, I didn't know about this utility. Here are the logs: http://ix.io/2Ok2

[axeleroy]

It happened again.

Should I try updating to the Armbian version that jiust came out?
When should I run armbianmonitor (whenever I can or just after a reboot?) and what should I be looking for (because nothing seems odd to me, but I'm not that of an advanced user)

 

Thanks !

[gprovost]

@axeleroy

Hi, could try to the following tweak and then report to us if it helps stabilizing your system.

 

Run armbian-config, go to -> System -> CPU

 

And set:

Minimum CPU speed = 1200000

Maximum CPU speed = 1200000

CPU governor = performance

 

 

[axeleroy]

Updating to the latest Armbian seems to have improved stability, though it has only been 72 hours since the update, I might be talking too quickly.

 

@gprovost Do I need rebooting after applying this configuration? Out of curiosity: how does it improve stability?

[Eric Poscher-Mika]

Am 8.2.2021 um 04:25 schrieb gprovost:

@axeleroy

Hi, could try to the following tweak and then report to us if it helps stabilizing your system.

 

Run armbian-config, go to -> System -> CPU

 

And set:

Minimum CPU speed = 1200000

Maximum CPU speed = 1200000

CPU governor = performance

 

 

 

Does it make a difference which minimum Speed is used? I would prefer to set the lowest CPU Speed as minimum to save energy use when there is low CPU usage.

 

[gprovost]

@Eric Poscher-Mika Doesn't matter which speed you choose, the purpose of this temporary workaround is to disable variable frequency and use a fixed one. So you can choose the lowest if it fulfills your needs in term of compute power.

 

[axeleroy]

Hi, quick update: no reboots in the two weeks following the frequency tweak. Reboot still happened shortly after my February 11 post (but before I applied gprovost's advice).

[bunducafe]

Am 8.2.2021 um 04:25 schrieb gprovost:

@axeleroy

Hi, could try to the following tweak and then report to us if it helps stabilizing your system.

 

Run armbian-config, go to -> System -> CPU

 

And set:

Minimum CPU speed = 1200000

Maximum CPU speed = 1200000

CPU governor = performance

 

 

I had a similar issue with random reboots. Did DM @axelroy directly and also "tweaked" the system.

 

I am running the helios now for almost 2 weeks without issues with the following settings:

Min CPU speed = 400 MHz

Max CPU speed = 1400 MHz

CPU governor = on demand

 

So it seems that the helios was rebooting when having to deal with intensive tasks - in my case: performing a SnapRAID scrub. Anyhow: Now I am at maximum speed of 1400MHz whereas the helios could perform even on 1800MHz. The question is if this is a problem by design? Or is there a way to fix it in order to let the machine run full CPU speed and performance governor? I am happy with the machine, no doubt, at the end this is rather a question of how I can achieve the maximum speed if needed.