I understand the urgency for deploying the -P1 code. That's why we have been doing a lot of efforts since yesterday, but finally we went back to "non -P1" release. We had a lot of service interruptions, because the high load of the servers and the service not responding. We could not continue with this level of service and now are risking the exploit. We are using RedHat distribution of the bind (9.4.2-P1), we put an extra server under the load balancer and even so they couldn't handle the load. We didn't continue adding hw because had no expectations of new bind supporting all the requests
We appreciate the effort ISC is doing supporting BIND, we will keep waiting for the release of a solution. JRI
