SERVFAIL in reverse zones

[J.M.Roth]

Hello,
I am experiencing strange things in my reverse zones...

Example:
This is the reverse zone file

<quote>
$TTL        86400
@               IN      SOA     a.ns.iip.lu.
hostmaster.binaerkorrektur.de. (
                                2006032101       ; serial, todays date
+ todays serial #
                                28800   ; Refresh
                                7200    ; Retry
                                604800  ; Expire
                                86400)  ; Minimum TTL
                        NS      a.ns.iip.lu.
                        NS      b.ns.iip.lu.
11       PTR     host1.com.
;etc ...

;;;; MAKE MANUAL ENTRIES BELOW THIS LINE! ;;;;

$GENERATE 1-254 $ PTR ip90-${0,3,d}.iip.lu.
</quote>

Now I do a dig 12.90.177.195.in-addr.arpa PTR

<output>
; <<>> DiG 9.2.4 <<>> 12.90.177.195.in-addr.arpa PTR
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 47248
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;12.90.177.195.in-addr.arpa.    IN      PTR

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed Mar 22 15:59:31 2006
;; MSG SIZE  rcvd: 44
</output>

I go into the above mentioned zonefile, edit *something* in it (f.e. I
add a new line and remove it again) and then I save the file.

I do a kill -1 on named and it works again:

<output>
; <<>> DiG 9.2.4 <<>> 12.90.177.195.in-addr.arpa PTR
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 11761
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;12.90.177.195.in-addr.arpa.    IN      PTR

;; ANSWER SECTION:
12.90.177.195.in-addr.arpa. 86400 IN    PTR     ip90-012.iip.lu.

;; AUTHORITY SECTION:
90.177.195.in-addr.arpa. 86400  IN      NS      b.ns.iip.lu.
90.177.195.in-addr.arpa. 86400  IN      NS      a.ns.iip.lu.

;; ADDITIONAL SECTION:
a.ns.iip.lu.            3600    IN      A       195.177.88.2
b.ns.iip.lu.            3600    IN      A       195.177.89.2

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed Mar 22 16:03:25 2006
;; MSG SIZE  rcvd: 140
</output>

I am using bind that comes with Debian Sarge (9.2.4).
Anyone got an idea what's wrong here?

Regards,
~jm