so it ran away again
Here is result of top -H -p <pid of openHAB >:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
22366 openhab 20 0 6331156 1.929g 24160 R 99.9 25.3 686:26.25 safeCall-queue
13386 openhab 20 0 6331156 1.929g 24160 S 0.3 25.3 1:04.75 OH-httpClient-c
13428 openhab 20 0 6331156 1.929g 24160 S 0.3 25.3 0:48.27 OH-usb-serial-d
13514 openhab 20 0 6331156 1.929g 24160 S 0.3 25.3 2:24.84 RXTXPortMonitor
13556 openhab 20 0 6331156 1.929g 24160 S 0.3 25.3 0:32.60 ZWaveReceiveInp
12869 openhab 20 0 6331156 1.929g 24160 S 0.0 25.3 0:00.00 java
13022 openhab 20 0 6331156 1.929g 24160 S 0.0 25.3 0:00.58 java
13023 openhab 20 0 6331156 1.929g 24160 S 0.0 25.3 0:04.63 GC Thread#0
13024 openhab 20 0 6331156 1.929g 24160 S 0.0 25.3 0:00.01 G1 Main Marker
13025 openhab 20 0 6331156 1.929g 24160 S 0.0 25.3 0:01.12 G1 Conc#0
13026 openhab 20 0 6331156 1.929g 24160 S 0.0 25.3 0:00.14 G1 Refine#0
13027 openhab 20 0 6331156 1.929g 24160 S 0.0 25.3 0:41.21 G1 Service
13028 openhab 20 0 6331156 1.929g 24160 S 0.0 25.3 0:04.58 VM Thread
13029 openhab 20 0 6331156 1.929g 24160 S 0.0 25.3 0:00.06 Reference Handl
13030 openhab 20 0 6331156 1.929g 24160 S 0.0 25.3 0:00.02 Finalizer
13031 openhab 20 0 6331156 1.929g 24160 S 0.0 25.3 0:00.00 Signal Dispatch
13032 openhab 20 0 6331156 1.929g 24160 S 0.0 25.3 0:01.63 Service Thread
obviously safeCall-queue thread is pinning it
hope this helps somebody because I don’t have a clue