gh-159620: Fix remote asyncio stacks stopping at async generators

[deadlovelll]

Fix remote asyncio stacks stopping at async generators

See gh-159620

[pablogsal]

Thanks for the patch! 🤘

[miss-islington-app]

Thanks @deadlovelll for the PR, and @pablogsal for merging it 🌮🎉.. I'm working now to backport this PR to: 3.14, 3.15.
🐍🍒⛏🤖

[miss-islington-app]

Sorry, @deadlovelll and @pablogsal, I could not cleanly backport this to 3.14 due to a conflict.

Please backport manually with cherry_picker, see the devguide for more information.

cherry_picker 2188f9b60abb7965548b1f0eac368d858edfff80 3.14

[bedevere-app]

GH-159654 is a backport of this pull request to the 3.15 branch.

[bedevere-app]

GH-159655 is a backport of this pull request to the 3.14 branch.

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot aarch64 CentOS9 Refleaks 3.x (tier-1) has failed when building commit 2188f9b.

What do you need to do:

1. Don't panic.
2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
3. Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/840/builds/2864) and take a look at the build logs.
4. Check if the failure is related to this commit (2188f9b) or if it is a false positive.
5. If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/#/builders/840/builds/2864

Failed tests:

• test.test_multiprocessing_fork.test_processes

Failed subtests:

• test_interrupt - test.test_multiprocessing_fork.test_processes.WithProcessesTestProcess.test_interrupt
• test_cprofile - test.test_profile.ProfileTest.test_cprofile

Summary of the results of the build (if available):

==

Click to see traceback logs

Traceback (most recent call last):
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/test/test_profile.py", line 70, in test_cprofile
    self.fail("\n".join(fail))
    ~~~~~~~~~^^^^^^^^^^^^^^^^^
AssertionError: 
Stats.print_stats output for Profile does not fit expectation:
--- 
+++ 
@@ -1,9 +1,7 @@
-       28   27.972    0.999   27.972    0.999 profilee.py:110(__getattr__)
-        1  269.996  269.996  999.769  999.769 profilee.py:25(testfunc)
-     23/3  149.937    6.519  169.917   56.639 profilee.py:35(factorial)
-       20   19.980    0.999   19.980    0.999 profilee.py:48(mul)
-        2   39.986   19.993  599.830  299.915 profilee.py:55(helper)
-        4  115.984   28.996  119.964   29.991 profilee.py:73(helper1)
-        2   -0.006   -0.003  139.946   69.973 profilee.py:84(helper2_indirect)
-        8  311.976   38.997  399.912   49.989 profilee.py:88(helper2)
-        8   63.976    7.997   79.960    9.995 profilee.py:98(subhelper)
+       12   11.988    0.999   11.988    0.999 profilee.py:110(__getattr__)
+        1   98.999   98.999  999.938  999.938 profilee.py:25(testfunc)
+        1   18.994   18.994  900.939  900.939 profilee.py:55(helper)
+        2   57.992   28.996   59.982   29.991 profilee.py:73(helper1)
+        1   -0.001   -0.001  671.996  671.996 profilee.py:84(helper2_indirect)
+        4  127.990   31.997  821.964  205.491 profilee.py:88(helper2)
+        3   23.991    7.997   29.985    9.995 profilee.py:98(subhelper)


Traceback (most recent call last):
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/contextlib.py", line 116, in inner
    return func(*args, **kwds)
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/test/_test_multiprocessing.py", line 651, in test_interrupt
    exitcode = self._kill_process(multiprocessing.Process.interrupt)
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/contextlib.py", line 116, in inner
    return func(*args, **kwds)
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/test/_test_multiprocessing.py", line 632, in _kill_process
    self.assertEqual(join(), None)
                     ~~~~^^
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/test/_test_multiprocessing.py", line 305, in __call__
    return self.func(*args, **kwds)
           ~~~~~~~~~^^^^^^^^^^^^^^^
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/multiprocessing/process.py", line 156, in join
    res = self._popen.wait(timeout)
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/multiprocessing/popen_fork.py", line 44, in wait
    return self.poll(os.WNOHANG if timeout == 0.0 else 0)
           ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/multiprocessing/popen_fork.py", line 28, in poll
    pid, sts = os.waitpid(self.pid, flag)
               ~~~~~~~~~~^^^^^^^^^^^^^^^^
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/test/_test_multiprocessing.py", line 628, in handler
    raise RuntimeError('join took too long: %s' % p)
RuntimeError: join took too long: <Process name='Process-3' pid=2218393 parent=2218387 started daemon>


Traceback (most recent call last):
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/multiprocessing/process.py", line 320, in _bootstrap
    self.run()
    ~~~~~~~~^^
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/test/_test_multiprocessing.py", line 579, in _sleep_some_event
    time.sleep(100)
    ~~~~~~~~~~^^^^^
KeyboardInterrupt
k


Traceback (most recent call last):
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/contextlib.py", line 116, in inner
    return func(*args, **kwds)
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/test/_test_multiprocessing.py", line 651, in test_interrupt
    exitcode = self._kill_process(multiprocessing.Process.interrupt)
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/contextlib.py", line 116, in inner
    return func(*args, **kwds)
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/test/_test_multiprocessing.py", line 632, in _kill_process
    self.assertEqual(join(), None)
                     ~~~~^^
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/test/_test_multiprocessing.py", line 305, in __call__
    return self.func(*args, **kwds)
           ~~~~~~~~~^^^^^^^^^^^^^^^
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/multiprocessing/process.py", line 156, in join
    res = self._popen.wait(timeout)
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/multiprocessing/popen_fork.py", line 44, in wait
    return self.poll(os.WNOHANG if timeout == 0.0 else 0)
           ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/multiprocessing/popen_fork.py", line 28, in poll
    pid, sts = os.waitpid(self.pid, flag)
               ~~~~~~~~~~^^^^^^^^^^^^^^^^
  File "/var/lib/buildbot/worker/cstratak-CentOS9-aarch64/3.x.cstratak-CentOS9-aarch64.refleak/build/Lib/test/_test_multiprocessing.py", line 628, in handler
    raise RuntimeError('join took too long: %s' % p)
RuntimeError: join took too long: <Process name='Process-1369' pid=2133025 parent=2096221 started daemon>