[tor-bugs] #22902 [Core Tor/Stem]: run_tests.py hangs in process or control.controller

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#22902: run_tests.py hangs in process or control.controller
-------------------------------+--------------------
     Reporter:  catalyst       |      Owner:  atagar
         Type:  defect         |     Status:  new
     Priority:  Medium         |  Milestone:
    Component:  Core Tor/Stem  |    Version:
     Severity:  Normal         |   Keywords:
Actual Points:                 |  Parent ID:
       Points:                 |   Reviewer:
      Sponsor:                 |
-------------------------------+--------------------
 Oddly enough it seems to happen less often with `-v`.

 Excerpt from one of the hangs when using `-v`:

 {{{
 ======================================================================
                test.integ.installation.TestInstallation
 ======================================================================

 test_install                                           0 ms  [SUCCESS]
 test_sdist                                           627 ms  [SUCCESS]

 ----------------------------------------------------------------------
 Ran 2 tests in 0.628s

 OK

 ======================================================================
                     test.integ.process.TestProcess
 ======================================================================
 }}}

 During the hang I see the following tor and python processes:
 {{{
 tlyu      96853  1.4  9.0 21474964912 365204 pts/0 S+ 15:39   0:01
 /home/tlyu/src/stem/../tor/src/or/tor -f
 /home/tlyu/src/stem/test/data/torrc __OwningControllerProcess 96673
 tlyu      96673  4.4  1.0 394728 41408 pts/0    S+   15:39   0:05 python
 ./run_tests.py --tor ../tor/src/or/tor --all --log notice --target RUN_AL
 -v
 tlyu      96680  1.2  0.0      0     0 pts/0    ZN+  15:39   0:01 [python]
 <defunct>
 tlyu      96686  0.0  0.0      0     0 pts/0    ZN+  15:39   0:00 [python]
 <defunct>
 tlyu      96687  0.0  0.0      0     0 pts/0    ZN+  15:39   0:00 [python]
 <defunct>
 tlyu      96689  0.0  0.0      0     0 pts/0    ZN+  15:39   0:00 [python]
 <defunct>
 tlyu      96690  0.0  0.0      0     0 pts/0    ZN+  15:39   0:00 [python]
 <defunct>
 tlyu      96692  0.0  0.0      0     0 pts/0    ZN+  15:39   0:00 [python]
 <defunct>
 tlyu      96693  0.0  0.0      0     0 pts/0    ZN+  15:39   0:00 [python]
 <defunct>
 tlyu      96701  0.0  0.0      0     0 pts/0    ZN+  15:39   0:00 [python]
 <defunct>
 tlyu      96702  0.0  0.0      0     0 pts/0    ZN+  15:39   0:00 [python]
 <defunct>
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22902>
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