Statistics-channel json crashes Bind

[Ingeborg Hellemo]

FreeBSD 11.2
Bind 9.12.3-P1


I have a server which runs several nameservers, each in its own chroot with 
its own assigned IP-address.

They run like this:
/usr/local/sbin/named -4 -t /resolver -u bind -c /etc/namedb/named.conf

In named.conf:

statistics-channels {
        inet <server-ip> port 50000 allow { <monitoring-ip>; };
};

On my monitoring server I collect statistics via http://<server-ip>:50000/json 


Today I added one more chroot. For this server the statistics collection 
crashes the named daemon without any trace in the log files. Even stranger is 
that "http://<server-ip>:50000" and "http://<server-ip>:50000/xml" works fine.

All the nameservers run the same binary. 


Any ideas where to look?


--Ingeborg
-- 
Ingeborg Østrem Hellemo  --  ingeborg.hellemo at uit.no
Dep. of Information Technology  ---  Univ. of Tromsø