Arbitration lost after ebusd update #1563
Description
Description
I set up ebusd with the then current esera ebus converter ethernet version and a wolf heating system on April 2021. I've manually compiled and deployed the then current version of ebusd. This setup has been running until last week with few problems. I was able to read out most parameters passively, and I actively read two parameters actively every five minutes. I've plotted munin graphs of most parameters. Everything worked fine. The ebusd ran on a linux VM on a FreeBSD host and there were three managed L2 switches between the ebusd VM and the ebus converter. No problems at all with the latency.
Last week, I noticed by chance that ebusd crashed once a week. Since my logs are only temporary ones I cannot say if this started to happen a week before that or if it has been going on for years.
Anyway, I have upgraded to the latest ebusd version. Since then I cannot synchronize the bus anymore. I changed ebusd to go to readonly mode and am still able to read out all parameters passively, works just as well as before. But I cannot send on the ebus anymore. I have set up a new machine on an intel system, no virtualization, 1.5 meter long ethernet cable, directly connected to the esera ebusd converter. This didn't change anything.
Actual behavior
I am only able to use the ebus in read only mode with the latest versions of ebusd.
Expected behavior
Read write usage of the ebus just like with the 2021 build of ebusd
ebusd version
current source from git
ebusd arguments
--updatecheck=off -d udp:192.168.7.225:5000 -c /etc/ebusd/wolf -f -r --loglevel=error
Operating system
other
CPU architecture
x64
Dockerized
None
Hardware interface
Adapter v3 Ethernet
Related integration
No response
Logs
root@tb /h/hc# sudo -u ebusd /usr/local/bin/ebusd --updatecheck=off -d udp:192.168.7.225:5000 -c /etc/ebusd/wolf -f -r
2025-07-07 11:15:18.411 [device notice] transport opened
2025-07-07 11:15:18.411 [main notice] ebusd 25.1.25.1 started on device: udp:192.168.7.225:5000, UDP, readonly
2025-07-07 11:15:18.422 [bus notice] bus started with own address 31/36
2025-07-07 11:15:18.425 [bus notice] signal acquired
2025-07-07 11:15:18.425 [bus error] push poll message: ERR: generic device error
2025-07-07 11:15:20.459 [bus notice] new master 30, master count 1
2025-07-07 11:15:20.464 [bus notice] new master 03, master count 2
2025-07-07 11:15:20.464 [update notice] received read betrd_bm2 bm2 QQ=30: aus;Verbraucheraus;5.00;-;-;10.0;8
2025-07-07 11:15:21.816 [update notice] received update-read broadcast betrd QQ=03: 0;00;-;24.5;24;48;20
2025-07-07 11:15:22.875 [update notice] received unknown MS cmd: 305050140720000500194014 / 09000000800080008828
2025-07-07 11:15:23.881 [bus notice] new master f1, master count 3
2025-07-07 11:15:23.881 [update notice] received update-read broadcast betrd QQ=f1: 0;00;-;24.5;-;48;18
2025-07-07 11:15:24.060 [bus error] push poll message: ERR: generic device error
2025-07-07 11:15:25.058 [bus notice] new master 70, master count 4
2025-07-07 11:15:25.145 [update notice] received read mm status_mm QQ=70: 00;21.602;00;20.844;5a;0a
2025-07-07 11:15:25.473 [update notice] received read cha kesselsolltemperatur QQ=30: 5.0
2025-07-07 11:15:25.801 [update notice] received read betrd_bm2 temp_return QQ=30: 24.0
2025-07-07 11:15:26.216 [update notice] received read betrd_bm2 temp_return QQ=30: 24.0
2025-07-07 11:15:26.630 [update notice] received read betrd_bm2 temp_return QQ=30: 24.0
2025-07-07 11:15:26.959 [update notice] received read betrd_bm2 temp_return QQ=30: 24.0
2025-07-07 11:15:27.373 [update notice] received read betrd_bm2 temp_return QQ=30: 24.0
2025-07-07 11:15:27.701 [update notice] received unknown MS cmd: 3008502203cc6c01 / 020000
2025-07-07 11:15:28.115 [update notice] received unknown MS cmd: 3008502203cc6c01 / 020000
2025-07-07 11:15:28.423 [main notice] found messages: 528 (0 conditional on 0 conditions, 6 poll, 124 update)
2025-07-07 11:15:28.529 [update notice] received unknown MS cmd: 3008502203cc6c01 / 020000
2025-07-07 11:15:28.858 [update notice] received unknown MS cmd: 3008502203cc6c01 / 020000
2025-07-07 11:15:29.272 [update notice] received unknown MS cmd: 3008502203cc6c01 / 020000
2025-07-07 11:15:29.687 [update notice] received read cha sammlertemperatur QQ=30: -
2025-07-07 11:15:30.033 [bus error] push poll message: ERR: generic device error
root@tb /h/hc# sudo -u ebusd /usr/local/bin/ebusd --updatecheck=off -d udp:192.168.7.225:5000 -c /etc/ebusd/wolf -f -s
2025-07-07 11:15:39.429 [device notice] transport opened
2025-07-07 11:15:39.429 [main notice] ebusd 25.1.25.1 started with broadcast scan on device: udp:192.168.7.225:5000, UDP
2025-07-07 11:15:39.440 [bus notice] bus started with own address 31/36
2025-07-07 11:15:39.475 [bus notice] signal acquired
2025-07-07 11:15:39.561 [bus error] arbitration start error
2025-07-07 11:15:39.646 [bus error] arbitration start error
2025-07-07 11:15:39.707 [bus notice] new master f1, master count 2
2025-07-07 11:15:39.708 [update notice] received update-read broadcast sollw QQ=f1: 5.000;18.500;0;40;10.000
2025-07-07 11:15:39.714 [bus error] arbitration start error
2025-07-07 11:15:39.800 [bus error] arbitration start error
2025-07-07 11:15:39.800 [bus error] poll mm mischermotor_offen failed: ERR: arbitration lost
2025-07-07 11:15:40.113 [bus notice] new master 70, master count 3
2025-07-07 11:15:40.199 [update notice] received read mm status_mm QQ=70: 00;21.602;00;20.844;5a;0a
2025-07-07 11:15:40.500 [bus notice] new master 30, master count 4
2025-07-07 11:15:40.528 [bus notice] new master 03, master count 5
2025-07-07 11:15:40.528 [update notice] received read betrd_bm2 performance_pump QQ=30: 0
2025-07-07 11:15:40.856 [update notice] received read betrd_bm2 no_of_power_on QQ=30: 71
2025-07-07 11:15:41.270 [update notice] received unknown MS cmd: 3008502203cc362a / 020080
2025-07-07 11:15:41.683 [update notice] received unknown MS cmd: 3008502203cc372a / 020080
2025-07-07 11:15:41.834 [update notice] received update-read broadcast betrd QQ=03: 0;00;-;24.5;24;48;20
2025-07-07 11:15:42.076 [update notice] received unknown MS cmd: 3008502203cc7c2a / 020080
2025-07-07 11:15:42.490 [update notice] received unknown MS cmd: 3008502203cc7c2a / 020080
^C2025-07-07 11:15:42.762 [main notice] SIGINT received
2025-07-07 11:15:42.863 [device error] transport closed