I'm sorry to keep replying to myself but I believe I've found the line of code
that is causing this issue. Looking at validator.c, in the check_deadlock
function, 9.12.0rc1 says:
...
if (parent->event != NULL &&
parent->event->type == type &&
dns_name_equal(parent->event->name, name) &&
...
9.12.0rc3 and above says:
...
if (parent->event != NULL &&
(parent->event->type == type ||
parent->event->type == dns_rdatatype_cname) &&
dns_name_equal(parent->event->name, name) &&
...
By removing "parent->event->type == dns_rdatatype_cname)" (and adjusting the
rest of the if statement appropriately) the query "dig ns rs.dns-oarc.net"
works.
I see this commit related to this line of code:
https://gitlab.isc.org/isc-projects/bind9/commit/2b51d5874c49ac823890b88824290fbf1c18f2cc
I'm sure this line of code is important, otherwise it wouldn't be there and I
don't know enough to be removing random bits of code, so of course I'd never
run this in production. Still I want to understand why this is happening and if
it’s a bug or me not understanding DNS properly.
As always thank you for your time!
-Nick
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