Shutdown system test timing out on tsan builds
There are a number of CI runs that are failing like this.
Job #2450995 failed for 14ca6270:
% grep '^[SER]:' raw.txt | sort -t : -k 2 | awk -F : '$1 == "S" { if (x != "") print x; x = $0 } $1 == "R" { x = "" }'
S:shutdown:2022-04-18T22:52:39+0000
%
S:shutdown:2022-04-18T22:52:39+0000
T:shutdown:1:A
A:shutdown:System test shutdown
I:shutdown:PORTS:31561,31562,31563,31564,31565,31566,31567,31568,31569,31570,31571,31572,31573
I:shutdown:starting servers
D:shutdown:============================= test session starts ==============================
D:shutdown:platform linux -- Python 3.10.2, pytest-6.2.4, py-1.11.0, pluggy-0.13.1 -- /usr/bin/python3
D:shutdown:hypothesis profile 'default' -> database=DirectoryBasedExampleDatabase('/builds/isc-projects/bind9/bin/tests/system/shutdown/.hypothesis/examples')
D:shutdown:rootdir: /builds/isc-projects/bind9/bin/tests/system/shutdown
D:shutdown:plugins: hypothesis-6.14.3
D:shutdown:collecting ... collected 1 item
D:shutdown: