isidentical@gcc-solaris11:~/cpython$ ./python -m test test_builtin -m test_input_no_stdout_fileno -F -j10 -v
== CPython 3.9.0a5+ (heads/master:dc4e965, Apr 2 2020, 23:53:26) [GCC 5.5.0]
== Solaris-2.11-sun4u-sparc-32bit big-endian
== cwd: /export/home/isidentical/cpython/build/test_python_24804
== CPU count: 8
== encodings: locale=UTF-8, FS=utf-8
0:00:00 load avg: 1.56 Run tests in parallel using 10 child processes
0:00:02 load avg: 1.57 [  1/1] test_builtin crashed (Exit code -1)
test_input_no_stdout_fileno (test.test_builtin.PtyTests) ...
Kill <TestWorkerProcess #2 running test=test_builtin pid=24812 time=2.1 sec> process group
Kill <TestWorkerProcess #3 running test=test_builtin pid=24810 time=2.1 sec> process group
Kill <TestWorkerProcess #4 running test=test_builtin pid=24815 time=2.1 sec> process group
Kill <TestWorkerProcess #5 running test=test_builtin pid=24807 time=2.1 sec> process group
Kill <TestWorkerProcess #6 running test=test_builtin pid=24809 time=2.1 sec> process group
Kill <TestWorkerProcess #7 running test=test_builtin pid=24814 time=2.1 sec> process group
Kill <TestWorkerProcess #8 running test=test_builtin pid=24808 time=2.1 sec> process group
Kill <TestWorkerProcess #9 running test=test_builtin pid=24813 time=2.1 sec> process group
Kill <TestWorkerProcess #10 running test=test_builtin pid=24816 time=2.1 sec> process group

== Tests result: FAILURE ==

1 test failed:
    test_builtin

Total duration: 2.2 sec
Tests result: FAILURE
isidentical@gcc-solaris11:~/cpython$ wget https://patch-diff.githubusercontent.com/raw/python/cpython/pull/19312.patch
--2020-04-02 23:53:51--  https://patch-diff.githubusercontent.com/raw/python/cpython/pull/19312.patch
Resolving patch-diff.githubusercontent.com (patch-diff.githubusercontent.com)... 140.82.118.4
Connecting to patch-diff.githubusercontent.com (patch-diff.githubusercontent.com)|140.82.118.4|:443... connected.
HTTP request sent, awaiting response... 200 OK
Cookie coming from patch-diff.githubusercontent.com attempted to set domain to github.com
Length: unspecified [text/plain]
Saving to: ‘19312.patch’

19312.patch                                 [ <=>                                                                            ]   1.62K  --.-KB/s    in 0s      

2020-04-02 23:53:51 (3.38 MB/s) - ‘19312.patch’ saved [4252]
isidentical@gcc-solaris11:~/cpython$ git apply 19312.patch
isidentical@gcc-solaris11:~/cpython$ gmake -j8
...
isidentical@gcc-solaris11:~/cpython$ ./python -m test test_builtin -m test_input_no_stdout_fileno -F -j10 -v          
== CPython 3.9.0a5+ (heads/master:dc4e965, Apr 2 2020, 23:53:26) [GCC 5.5.0]
== Solaris-2.11-sun4u-sparc-32bit big-endian
== cwd: /export/home/isidentical/cpython/build/test_python_24850
== CPU count: 8
== encodings: locale=UTF-8, FS=utf-8
0:00:00 load avg: 1.71 Run tests in parallel using 10 child processes
0:00:02 load avg: 1.78 [  1/1] test_builtin crashed (Exit code -1)
test_input_no_stdout_fileno (test.test_builtin.PtyTests) ...
Kill <TestWorkerProcess #1 running test=test_builtin pid=24855 time=2.6 sec> process group
Kill <TestWorkerProcess #3 running test=test_builtin pid=24862 time=2.6 sec> process group
Kill <TestWorkerProcess #4 running test=test_builtin pid=24856 time=2.6 sec> process group
Kill <TestWorkerProcess #5 running test=test_builtin pid=24853 time=2.6 sec> process group
Kill <TestWorkerProcess #6 running test=test_builtin pid=24854 time=2.6 sec> process group
Kill <TestWorkerProcess #7 running test=test_builtin pid=24861 time=2.5 sec> process group
Kill <TestWorkerProcess #8 running test=test_builtin pid=24860 time=2.5 sec> process group
Kill <TestWorkerProcess #9 running test=test_builtin pid=24859 time=2.5 sec> process group
Kill <TestWorkerProcess #10 running test=test_builtin pid=24858 time=2.5 sec> process group

== Tests result: FAILURE ==

1 test failed:
    test_builtin

Total duration: 2.7 sec
Tests result: FAILURE