Problem with Bind 9.5.0 with AXFR

Hello,

I installed dlz on my bind installation, and created a sample zone
"example.com".

I configured a SOA, a NS record and a single "A" record, and tried to
run a AXFR on the zone to see the result.

Shigoto ~ # dig example.com @localhost axfr
;; communications error to 127.0.0.1#53: end of file 
;; Connection to 127.0.0.1#53(127.0.0.1) for example.com failed:
connection refused. 
;; Connection to ::1#53(::1) for example.com failed: connection refused.

Normal queries works just fine.

After checking I found that bind stopped, with the following message in
system log:

Jul 9 12:03:17 Shigoto named[9475]: zone.c:2514: REQUIRE((((source) !=
((void *)0)) && (((const isc__magic_t *)(source))->magic == ((('Z') <<
24 | ('O') << 16 | ('N') << 8 | ('E')))))) failed

mysql> select zone, host, ttl, type, data from dns_records;
+-------------+------+-------+------+------------------+ 
| zone        | host | ttl   | type | data             |
+-------------+------+-------+------+------------------+ 
| example.com | @    | 86400 | SOA  | ns1.example.com. | 
| example.com | @    | 86400 | NS   | localhost.       | 
| example.com | @    | 86400 | A    | 127.0.0.1        |
+-------------+------+-------+------+------------------+

(other SOA fields are filled correctly).

dlz config:

dlz "MySQL" {
  database "mysql
  {host=127.0.0.1 dbname=* user=* pass=*}
  {select zone FROM dns_records where zone = '%zone%' limit 1}
  {select ttl, type, mx_priority, case when lower(type)='txt' then
concat('\"', data, '\"') when lower(type) = 'soa' then concat_ws(' ',
data, resp_person, serial, refresh, retry, expire, minimum) else data
end from dns_records where zone = '%zone%' and host = '%record%'}
  {}
  {select ttl, type, host, mx_priority, case when lower(type)='txt' then
concat('\"', data, '\"') else data end, resp_person, serial, refresh,
retry, expire, minimum from dns_records where zone = '%zone%'}
  {select `zone` FROM `xfr_table` WHERE `zone` = '%zone%' AND `client` =
'%client%'}
  ";
};

I checked a few times, tried to look on the mailing list archive, but
didn't find anything related to bind9's assert failing.

Any help would be welcome.


Best regards,
Mark

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