Problem with BIND 9.10.1-P1 recursion limits

[Stuart Henderson]

The new recursion limits (or at least the default values for them) seem
to have some problems. Simple example, if I start named for recursive
service, no forwarders, debugging enabled, and run "dig @::1 www.ibm.com a"
I get a failure with numerous "exceeded max queries" log entries for gtld
servers etc.

If people are having trouble replicating I can provide more logs off-list
on request (~7K lines for a 'trace 9' log so not included here).

09-Dec-2014 13:44:40.571 exceeded max queries resolving 'g.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.572 exceeded max queries resolving 'm.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.573 exceeded max queries resolving 'm.gtld-servers.net/A'
09-Dec-2014 13:44:40.573 exceeded max queries resolving 'h.gtld-servers.net/A'
09-Dec-2014 13:44:40.574 exceeded max queries resolving 'd.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.575 exceeded max queries resolving 'm.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.668 exceeded max queries resolving 'h.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.668 exceeded max queries resolving 'm.gtld-servers.net/A'
09-Dec-2014 13:44:40.669 exceeded max queries resolving 'm.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.671 exceeded max queries resolving 'd.gtld-servers.net/A'
09-Dec-2014 13:44:40.671 exceeded max queries resolving 'm.gtld-servers.net/A'
09-Dec-2014 13:44:40.672 exceeded max queries resolving 'm.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.690 exceeded max queries resolving 'h.gtld-servers.net/A'
09-Dec-2014 13:44:40.690 exceeded max queries resolving 'm.gtld-servers.net/A'
09-Dec-2014 13:44:40.690 exceeded max queries resolving 'm.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.693 exceeded max queries resolving 'h.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.693 exceeded max queries resolving 'm.gtld-servers.net/A'
09-Dec-2014 13:44:40.695 exceeded max queries resolving 'm.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.699 exceeded max queries resolving 'd.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.699 exceeded max queries resolving 'm.gtld-servers.net/A'
09-Dec-2014 13:44:40.699 exceeded max queries resolving 'i.gtld-servers.net/A'
09-Dec-2014 13:44:40.701 exceeded max queries resolving 'm.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.705 exceeded max queries resolving 'e.gtld-servers.net/A'
09-Dec-2014 13:44:40.705 exceeded max queries resolving 'i.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.705 exceeded max queries resolving 'm.gtld-servers.net/A'
09-Dec-2014 13:44:40.710 exceeded max queries resolving 'e.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.711 exceeded max queries resolving 'j.gtld-servers.net/A'
09-Dec-2014 13:44:40.711 exceeded max queries resolving 'f.gtld-servers.net/A'
09-Dec-2014 13:44:40.712 exceeded max queries resolving 'm.gtld-servers.net/A'
09-Dec-2014 13:44:40.714 exceeded max queries resolving 'm.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.717 exceeded max queries resolving 'j.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.717 exceeded max queries resolving 'g.gtld-servers.net/A'
09-Dec-2014 13:44:40.717 exceeded max queries resolving 'f.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.722 exceeded max queries resolving 'k.gtld-servers.net/A'
09-Dec-2014 13:44:40.722 exceeded max queries resolving 'm.gtld-servers.net/A'
09-Dec-2014 13:44:40.723 exceeded max queries resolving 'g.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.724 exceeded max queries resolving 'm.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.728 exceeded max queries resolving 'k.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.728 exceeded max queries resolving 'l.gtld-servers.net/A'
09-Dec-2014 13:44:40.731 exceeded max queries resolving 'l.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.798 exceeded max queries resolving 'i.gtld-servers.net/A'
09-Dec-2014 13:44:40.803 exceeded max queries resolving 'c.gtld-servers.net/A'
09-Dec-2014 13:44:40.807 exceeded max queries resolving 'i.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.808 exceeded max queries resolving 'd.gtld-servers.net/A'
09-Dec-2014 13:44:40.810 exceeded max queries resolving 'j.gtld-servers.net/A'
09-Dec-2014 13:44:40.812 exceeded max queries resolving 'j.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.815 exceeded max queries resolving 'c.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.817 exceeded max queries resolving 'k.gtld-servers.net/A'
09-Dec-2014 13:44:40.820 exceeded max queries resolving 'k.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.827 exceeded max queries resolving 'e.gtld-servers.net/A'
09-Dec-2014 13:44:40.829 exceeded max queries resolving 'l.gtld-servers.net/A'
09-Dec-2014 13:44:40.833 exceeded max queries resolving 'f.gtld-servers.net/A'
09-Dec-2014 13:44:40.834 exceeded max queries resolving 'g.gtld-servers.net/A'
09-Dec-2014 13:44:40.837 exceeded max queries resolving 'l.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.839 exceeded max queries resolving 'e.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.840 exceeded max queries resolving 'm.gtld-servers.net/A'
09-Dec-2014 13:44:40.843 exceeded max queries resolving 'f.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.996 exceeded max queries resolving 'm.gtld-servers.net/A'
09-Dec-2014 13:44:40.997 exceeded max queries resolving 'eur2.akam.net/A'
09-Dec-2014 13:44:40.997 exceeded max queries resolving 'eur5.akam.net/A'
09-Dec-2014 13:44:40.998 exceeded max queries resolving 'm.gtld-servers.net/AAAA'
09-Dec-2014 13:44:40.998 exceeded max queries resolving 'eur2.akam.net/AAAA'
09-Dec-2014 13:44:40.999 exceeded max queries resolving 'eur5.akam.net/AAAA'
09-Dec-2014 13:44:41.002 exceeded max queries resolving 'usc2.akam.net/A'
09-Dec-2014 13:44:41.002 exceeded max queries resolving 'usc3.akam.net/A'
09-Dec-2014 13:44:41.004 exceeded max queries resolving 'usc2.akam.net/AAAA'
09-Dec-2014 13:44:41.004 exceeded max queries resolving 'usc3.akam.net/AAAA'
09-Dec-2014 13:44:41.005 exceeded max queries resolving 'usw2.akam.net/A'
09-Dec-2014 13:44:41.006 exceeded max queries resolving 'asia3.akam.net/A'
09-Dec-2014 13:44:41.007 exceeded max queries resolving 'usw2.akam.net/AAAA'
09-Dec-2014 13:44:41.008 exceeded max queries resolving 'asia3.akam.net/AAAA'
09-Dec-2014 13:44:41.008 exceeded max queries resolving 'ns1-99.akam.net/A'
09-Dec-2014 13:44:41.008 exceeded max queries resolving 'ns1-206.akam.net/A'
09-Dec-2014 13:44:41.010 exceeded max queries resolving 'ns1-99.akam.net/AAAA'
09-Dec-2014 13:44:41.010 exceeded max queries resolving 'ns1-206.akam.net/AAAA'
09-Dec-2014 13:44:41.011 exceeded max queries resolving 'm.gtld-servers.net/A'
09-Dec-2014 13:44:41.012 exceeded max queries resolving 'm.gtld-servers.net/AAAA'