Habe noch etwas weiter gegraben...
im Syslog:
May 22 11:00:00 openhabian4 kernel: [1538770.225789] hwmon hwmon1: Undervoltage detected!
May 22 11:00:16 openhabian4 kernel: [1538786.353938] hwmon hwmon1: Voltage normalised
May 22 11:03:46 openhabian4 kernel: [1538996.022071] hwmon hwmon1: Undervoltage detected!
May 22 11:03:52 openhabian4 kernel: [1539002.070104] hwmon hwmon1: Voltage normalised
May 22 11:03:58 openhabian4 karaf[9095]: Exception in thread "Thread-92" com.google.gson.JsonSyntaxException: java.io.EOFException: End of input at line 1 column 842 path $.dat.modules.RL.dbg
May 22 11:03:58 openhabian4 karaf[9095]: #011at com.google.gson.internal.Streams.parse(Streams.java:59)
May 22 11:03:58 openhabian4 karaf[9095]: #011at com.google.gson.JsonParser.parseReader(JsonParser.java:102)
May 22 11:03:58 openhabian4 karaf[9095]: #011at com.google.gson.JsonParser.parseReader(JsonParser.java:70)
May 22 11:03:58 openhabian4 karaf[9095]: #011at com.google.gson.JsonParser.parseString(JsonParser.java:51)
May 22 11:03:58 openhabian4 karaf[9095]: #011at org.openhab.binding.worxlandroid.internal.WorxLandroidMowerHandler.processMessage(WorxLandroidMowerHandler.java:826)
May 22 11:03:58 openhabian4 karaf[9095]: #011at org.openhab.binding.worxlandroid.internal.mqtt.AWSTopic.onMessage(AWSTopic.java:58)
May 22 11:03:58 openhabian4 karaf[9095]: #011at org.openhab.binding.worxlandroid.internal.mqtt.AWSClient.lambda$1(AWSClient.java:192)
May 22 11:03:58 openhabian4 karaf[9095]: #011at software.amazon.awssdk.crt.mqtt.MqttClientConnection$MessageHandler.deliver(MqttClientConnection.java:48)
May 22 11:03:58 openhabian4 karaf[9095]: Caused by: java.io.EOFException: End of input at line 1 column 842 path $.dat.modules.RL.dbg
May 22 11:03:58 openhabian4 karaf[9095]: #011at com.google.gson.stream.JsonReader.nextNonWhitespace(JsonReader.java:1457)
May 22 11:03:58 openhabian4 karaf[9095]: #011at com.google.gson.stream.JsonReader.doPeek(JsonReader.java:491)
May 22 11:03:58 openhabian4 karaf[9095]: #011at com.google.gson.stream.JsonReader.hasNext(JsonReader.java:422)
May 22 11:03:58 openhabian4 karaf[9095]: #011at com.google.gson.internal.bind.TypeAdapters$28.read(TypeAdapters.java:779)
May 22 11:03:58 openhabian4 karaf[9095]: #011at com.google.gson.internal.bind.TypeAdapters$28.read(TypeAdapters.java:725)
May 22 11:03:58 openhabian4 karaf[9095]: #011at com.google.gson.internal.Streams.parse(Streams.java:49)
May 22 11:03:58 openhabian4 karaf[9095]: #011... 7 more
May 22 11:03:58 openhabian4 karaf[9095]: Fatal error condition occurred in /work/src/native/mqtt_connection.c:680: !aws_jni_check_and_clear_exception(env)
May 22 11:03:58 openhabian4 karaf[9095]: Exiting Application
May 22 11:03:58 openhabian4 karaf[9095]: No call stack information available
May 22 11:03:58 openhabian4 systemd[1]: openhab.service: Main process exited, code=killed, status=6/ABRT
May 22 11:03:58 openhabian4 systemd[1]: openhab.service: Failed with result 'signal'.
May 22 11:03:58 openhabian4 systemd[1]: openhab.service: Consumed 8min 15.371s CPU time.
May 22 11:04:03 openhabian4 systemd[1]: openhab.service: Scheduled restart job, restart counter is at 2.
May 22 11:04:03 openhabian4 systemd[1]: Stopping Frontail openHAB instance, reachable at
http://openhabian4:9001...
May 22 11:04:03 openhabian4 systemd[1]: frontail.service: Succeeded.
May 22 11:04:03 openhabian4 systemd[1]: Stopped Frontail openHAB instance, reachable at
http://openhabian4:9001.
May 22 11:04:03 openhabian4 systemd[1]: frontail.service: Consumed 2.130s CPU time.
May 22 11:04:03 openhabian4 systemd[1]: Stopped openHAB - empowering the smart home.
May 22 11:04:03 openhabian4 systemd[1]: openhab.service: Consumed 8min 15.371s CPU time.
May 22 11:04:03 openhabian4 systemd[1]: Started openHAB - empowering the smart home.
May 22 11:04:03 openhabian4 systemd[1]: Started Frontail openHAB instance, reachable at
http://openhabian4:9001.
May 22 11:04:10 openhabian4 kernel: [1539020.214556] hwmon hwmon1: Undervoltage detected!
May 22 11:04:14 openhabian4 kernel: [1539024.246534] hwmon hwmon1: Voltage normalised
May 22 11:04:16 openhabian4 frontail[10487]: tail: '/var/log/openhab/openhab.log' has been replaced; following new file
May 22 11:04:16 openhabian4 frontail[10487]: tail: '/var/log/openhab/events.log' has been replaced; following new file
May 22 11:04:24 openhabian4 kernel: [1539034.326813] hwmon hwmon1: Undervoltage detected!
May 22 11:04:28 openhabian4 kernel: [1539038.358830] hwmon hwmon1: Voltage normalised
May 22 11:04:42 openhabian4 kernel: [1539052.471175] hwmon hwmon1: Undervoltage detected!
May 22 11:04:50 openhabian4 kernel: [1539060.535239] hwmon hwmon1: Voltage normalised
May 22 11:05:01 openhabian4 kernel: [1539070.615515] hwmon hwmon1: Undervoltage detected!
May 22 11:05:01 openhabian4 CRON[11113]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1)
May 22 11:05:05 openhabian4 kernel: [1539074.647516] hwmon hwmon1: Voltage normalised
May 22 11:05:09 openhabian4 kernel: [1539078.679699] hwmon hwmon1: Undervoltage detected!
May 22 11:05:28 openhabian4 karaf[10484]: RXTX Warning: Removing stale lock file. /var/lock/LCK..ttyUSB0
May 22 11:06:14 openhabian4 karaf[10484]: RXTX Warning: Removing stale lock file. /var/lock/LCK..ttyS0
May 22 11:06:32 openhabian4 dhcpcd[886]: eth0: Router Advertisement from fe80::7642:7fff:feaf:8e6a
May 22 11:06:33 openhabian4 kernel: [1539163.353151] hwmon hwmon1: Voltage normalised
May 22 11:09:29 openhabian4 kernel: [1539338.748605] hwmon hwmon1: Undervoltage detected!
May 22 11:09:33 openhabian4 kernel: [1539342.780639] hwmon hwmon1: Voltage normalised
May 22 11:10:01 openhabian4 kernel: [1539371.005283] hwmon hwmon1: Undervoltage detected!
May 22 11:10:15 openhabian4 kernel: [1539385.117418] hwmon hwmon1: Voltage normalised
May 22 11:11:52 openhabian4 dhcpcd[886]: eth0: Router Advertisement from fe80::7642:7fff:feaf:8e6a
May 22 11:11:53 openhabian4 dhcpcd[886]: eth0: Router Advertisement from fe80::7642:7fff:feaf:8e6a
May 22 11:15:01 openhabian4 CRON[11960]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1)
May 22 11:15:40 openhabian4 dhcpcd[886]: eth0: Router Advertisement from fe80::7642:7fff:feaf:8e6a
May 22 11:16:52 openhabian4 dhcpcd[886]: eth0: Router Advertisement from fe80::7642:7fff:feaf:8e6a
May 22 11:16:56 openhabian4 dhcpcd[886]: eth0: Router Advertisement from fe80::7642:7fff:feaf:8e6a
May 22 11:17:02 openhabian4 CRON[12153]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
Warum der Raspi Unterspannung anmeckert ? Das Netzteil soll bis 4 A liefern. aber das kann ja wohl nicht der Grund für den Absturz sein, oder ?