Event log doesn't want to start 3.1.1 Duet3 + SBC

felek

Hi!

I have quite strange issue. I wanted to start logging events, but I always get start/stop information.

2020-06-23 14:17:38 Event logging started
2020-06-23 14:17:38 Event logging stopped
2020-06-24 09:47:04 Event logging started
2020-06-24 09:47:04 Event logging stopped
2020-06-24 09:47:08 Event logging started
2020-06-24 09:47:08 Event logging stopped
2020-06-24 09:47:11 Event logging started
2020-06-24 09:47:11 Event logging stopped

I've tested RRF3-RC12 and RRF3.1.1 but it doesn't work.

It sounds similar to this topic: https://forum.duet3d.com/topic/16774/reset-during-print-duet-3-3-1-1-sbc?_=1592985911821
but in my case printer works perfectly.

Initially I was using M929 S1 in config.g file then I tried to start it manually but without good results.
I suspected that some gcodes in config.g file can change RRF firmware behaviour and it casues problems, but then I tried to run firmware with empty config.g file but this problem still exist.

@dc42
I looked at the code and did small investigation
When I execute M929 I always get "disabled" result

Only Platform::Exit and RepRap::EmergencyStop can stop logging, but this scenario is no possible because my printer works perfectly.
Is it possible that firmware can't create an logger object?

Thanks!

Phaedrux

What duet are you using? If Duet 3 are you using an SBC? And if using the SBC are you sure you're all up to date?

felek

@Phaedrux I have Duet3 6HC + 3HC + RPi 4.
I upgraded firmware on SBC using apt-get so it is official repo - RRF 3.1.1 (2020-05-19b2)

I've already tested this same firmware on Duet2 Ethernet(without SBC) and logging works perfectly.

Is SBC guilty?

felek

@Phaedrux I have next weird observation.

I don't use M929 S1 in config.g file, but after restart firmware when I send M929(without S param!) I get information that logging is "enabled".
I checked eventlogs.txt file but file is empty.
If I send manually M929 S1 I always get information that logging is "disabled".

Duet2 Ethernet (RRF 3.1.1) works ok.
Duet3 6HC + 3HC + SBC (RRF 3.1.1) is not able to logging data.

felek

Any ideas?

A Former User

It is a known limitation with DSF and some opertaions requiring SD card access so I'm guessing this falls under the same category and will work once that issue is resolved. I don't know when that is expected to be

But if you tell us what you want to achieve I'm sure we can find a work around while we wait, the SBC does open other possibilities.

Phaedrux

Sorry I missed your earlier replies, I'll raise the logging issue with @DC42.

BryanH

I'd like to add that I am experiencing the same issue - Currently running current code on a Duet3 6HC (SBC Pi4 4GB) + 3HC + 4 x tool boards with distro board. Upon powering on the system the eventlog.txt records:

2020-07-24 16:21:59 Event logging started
2020-07-24 16:21:59 Event logging stopped

Here I issued a manual M929 S1

2020-07-24 19:21:31 Event logging started
2020-07-24 19:21:31 Event logging stopped

chrishamm

Thanks for the bug report. I could reproduce this problem and it will be fixed quite soon.