named shutdown hang in notify system test
Job #1670803 produced a shutdown hang for 99a4f611 on main.
S:notify:2021-04-28T04:21:42+0000
T:notify:1:A
A:notify:System test notify
I:notify:PORTS:23243,23244,23245,23246,23247,23248,23249,23250,23251,23252,23253,23254,23255
I:notify:starting servers
I:notify:checking initial status (1)
I:notify:checking startup notify rate limit (2)
I:notify:reloading with example2 using HUP and waiting up to 45 seconds
I:notify:checking notify message was logged (3)
I:notify:checking example2 loaded (4)
I:notify:checking example2 contents have been transferred after HUP reload (5)
I:notify:stopping master and restarting with example4 then waiting up to 45 seconds
I:notify:checking notify message was logged (6)
I:notify:checking example4 loaded (7)
I:notify:checking example4 contents have been transferred after restart (8)
I:notify:checking notify to alternate port with master inheritance (9)
I:notify:checking notify to multiple views using tsig (10)
I:notify:exit status: 0
I:notify:stopping servers
I:notify:ns2 didn't die when sent a SIGTERM
I:notify:stopping servers failed
I:notify:Core dump(s) found: notify/ns2/core.15610
D:notify:backtrace from notify/ns2/core.15610:
D:notify:--------------------------------------------------------------------------------
D:notify:Core was generated by `/builds/isc-projects/bind9/bind-9.17.11/bin/named/.libs/named -D notify-ns2 -X'.
D:notify:Program terminated with signal SIGABRT, Aborted.
D:notify:#0 0x00007f41a3e05720 in __GI___nanosleep (requested_time=requested_time@entry=0x7ffd666405b0, remaining=remaining@entry=0x0) at ../sysdeps/unix/sysv/linux/nanosleep.c:28
D:notify:[Current thread is 1 (Thread 0x7f41a19b8880 (LWP 15610))]
D:notify:#0 0x00007f41a3e05720 in __GI___nanosleep (requested_time=requested_time@entry=0x7ffd666405b0, remaining=remaining@entry=0x0) at ../sysdeps/unix/sysv/linux/nanosleep.c:28
D:notify:#1 0x00007f41a3e30874 in usleep (useconds=useconds@entry=10000) at ../sysdeps/posix/usleep.c:32
D:notify:#2 0x00007f41a4a3607a in isc_nm_destroy (mgr0=0x561d43970f60 <named_g_nm>) at netmgr/netmgr.c:537
D:notify:#3 0x0000561d43902a22 in destroy_managers () at main.c:1014
D:notify:#4 cleanup () at main.c:1350
D:notify:#5 main (argc=<optimized out>, argv=<optimized out>) at main.c:1598
D:notify:--------------------------------------------------------------------------------
D:notify:full backtrace from notify/ns2/core.15610 saved in notify/ns2/core.15610-backtrace.txt
D:notify:core dump notify/ns2/core.15610 archived as notify/ns2/core.15610.gz
R:notify:FAIL
E:notify:2021-04-28T04:23:12+0000
FAIL notify (exit status: 1)Full backtrace: core.15610-backtrace.txt
Core file: core.15610.gz