Hello,
>> The first suspicious i can see are a lots of "ERR#32 'Broken pipe'" entries.
>
> This is the result of postgres crashing and thus initdb being unable to
> write any more data to it.
>
> I think you should try harder to generate the core file. Maybe you have
> too low an "ulimit -c" setting?
There is no ulimit at FreeBSD.
Greetings,
Torsten