Checking the processes in the dashboard section I found (new?, since last omv4 update ?) 2 zombie processes:
top - 20:37:08 up 1:34, 0 users, load average: 0.01, 0.02, 0.05
Tasks: 163 total, 1 running, 160 sleeping, 0 stopped, 2 zombie
%Cpu(s): 1.7 us, 0.6 sy, 0.0 ni, 97.3 id, 0.3 wa, 0.0 hi, 0.1 si, 0.0 st
KiB Mem : 7828888 total, 2864172 free, 366204 used, 4598512 buff/cache
KiB Swap: 15656956 total, 15656956 free, 0 used. 7131872 avail Mem
ps aux | grep 'Z'
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 14641 0.0 0.0 0 0 ? Zs 20:41 0:00 [mountpoint] <defunct>
root 14642 0.0 0.0 0 0 ? Zs 20:41 0:00 [mountpoint] <defunct>
root 14647 0.0 0.0 12788 976 pts/0 S+ 20:41 0:00 grep Z
checking some times later
ps aux | grep 'Z'
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 14778 0.0 0.0 0 0 ? Zs 20:43 0:00 [mountpoint] <defunct>
root 14779 0.0 0.0 0 0 ? Zs 20:43 0:00 [mountpoint] <defunct>
root 14782 0.0 0.0 12788 976 pts/0 S+ 20:43 0:00 grep Z
I've the same processes with other PID ?