could not get zone keys for secure dynamic update

[r3pek]

Hi list!

I'm trying to understand why my DNS zone refuses to get updated/signed.
After an "rndc reload" I get this in the named-pkcs11 logs:
<....>
failed to parse RR entry: resource record DN 
'idnsname=mail._domainkey,idnsname=example.com.,cn=dns,dc=example,dc=com'
<....>
update_record (syncrepl) failed, resource record DN 
'idnsname=mail._domainkey,idnsname=example.com.,cn=dns,dc=example,dc=com' 
change type 0x1. Records can be outdated, run `rndc reload`: syntax 
error
<....>
zone example.com/IN (signed): could not get zone keys for secure dynamic 
update
zone example/IN (signed): receive_secure_serial: unchanged
<....>


Naturally, i checked the DNSSEC Troubleshoot guide [1]:
- Zone is set to have in-line signing
- It appears on the zone list command to ods-ksmutil
- The KSK and ZSK keys are both active and have not expired
- The [...]/localhsm.py script result looks ok according to the expected 
results.


The question now is. How can I fix this?
Also, if the only fix is to disable and re-enable DNSSEC, does that have 
any implications?


Thanks in advance!
Carlos Mogas da Silva


[1] 
http://www.freeipa.org/page/Troubleshooting#DNSSEC_signing_does_not_work