A tracking bug for further investigation.

The dlzexternal test fails:

S:dlzexternal:Fri Dec  1 14:41:01 UTC 2017
T:dlzexternal:1:A
A:System test dlzexternal
I:testing update for testdc1.example.nil. A 86400 A 10.53.0.10 (1)
I:update failed for testdc1.example.nil. A 86400 A 10.53.0.10
I:testing update for testdc2.example.nil. A 86400 A 10.53.0.11 (2)
I:update failed for testdc2.example.nil. A 86400 A 10.53.0.11
I:testing update for testdc3.example.nil. A 86400 A 10.53.0.10 (3)
I:update failed for testdc3.example.nil. A 86400 A 10.53.0.10
I:testing update for deny.example.nil. TXT 86400 TXT helloworld (4)
I:testing nxrrset (5)
I:testing prerequisites are checked correctly (6)
I:testing passing client info into DLZ driver (7)
I:failed
I:testing DLZ driver is cleaned up on reload (8)
I:ns1 rndc: connect failed: 10.53.0.1#9953: connection refused
I:failed
I:testing multiple DLZ drivers (9)
I:testing update for testdc1.alternate.nil. A 86400 A 10.53.0.10 (10)
I:update failed for testdc1.alternate.nil. A 86400 A 10.53.0.10
I:testing AXFR from DLZ drivers (11)
I:failed
I:testing unsearched/unregistered DLZ zone is not found (12)
I:testing unsearched/registered DLZ zone is found (13)
I:failed
I:testing unsearched/registered DLZ zone is found (14)
I:failed
I:testing correct behavior with findzone returning ISC_R_NOMORE (15)
I:failed
I:testing findzone can return different results per client (16)
I:failed
I:testing zone returning oversized data (17)
I:failed
I:testing zone returning oversized data at zone origin (18)
I:failed
I:checking redirected lookup for nonexistent name (19)
I:failed
I:checking no redirected lookup for nonexistent type (20)
I:failed
I:checking redirected lookup for a long nonexistent name (21)
I:failed
I:exit status: 17
I:ns1 died before a SIGTERM was sent
R:FAIL
E:dlzexternal:Fri Dec  1 14:46:47 UTC 2017