gh-89363: Skip threading test_is_alive_after_fork() if ASAN

[vstinner]

Skip test_is_alive_after_fork() of test_threading if Python is built with Address Sanitizer (ASAN).

• Issue: Address Sanitizer: libasan dead lock in pthread_create() (test_multiprocessing_fork.test_get() hangs) #89363

[vstinner]

Bug seen on GHA Address Sanitizer: https://github.com/python/cpython/actions/runs/6299520741/job/17100440637?pr=109831

FAIL: test_is_alive_after_fork (test.test_threading.ThreadTests.test_is_alive_after_fork)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/runner/work/cpython/cpython/Lib/test/test_threading.py", line 595, in test_is_alive_after_fork
    support.wait_process(pid, exitcode=10)
  File "/home/runner/work/cpython/cpython/Lib/test/support/__init__.py", line 2199, in wait_process
    raise AssertionError(f"process {pid} is still running "
AssertionError: process 11875 is still running after 300.3 seconds

[vstinner]

Windows x64 failed: I created issue gh-109851.

ERROR: test_pipe_handle (test.test_asyncio.test_windows_utils.PipeTests.test_pipe_handle)

[vstinner]

Bug seen on GHA Address Sanitizer: https://github.com/python/cpython/actions/runs/6299520741/job/17100440637?pr=109831
FAIL: test_is_alive_after_fork (test.test_threading.ThreadTests.test_is_alive_after_fork)

I wrote PR #109835 for this issue.

[miss-islington]

Thanks @vstinner for the PR 🌮🎉.. I'm working now to backport this PR to: 3.11, 3.12.
🐍🍒⛏🤖

[bedevere-app]

GH-109855 is a backport of this pull request to the 3.12 branch.

[bedevere-app]

GH-109856 is a backport of this pull request to the 3.11 branch.

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot s390x SLES 3.x has failed when building commit bc06743.

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/all/#builders/540/builds/6627) and take a look at the build logs.
4. Check if the failure is related to this commit (bc06743) 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/all/#builders/540/builds/6627

Failed tests:

• test_tools

Failed subtests:

• test_freeze_simple_script - test.test_tools.test_freeze.TestFreeze.test_freeze_simple_script

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

==

Click to see traceback logs

Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Lib/test/test_tools/test_freeze.py", line 32, in test_freeze_simple_script
    outdir, scriptfile, python = helper.prepare(script, outdir)
                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Tools/freeze/test/freeze.py", line 146, in prepare
    copy_source_tree(srcdir, SRCDIR)
  File "/home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Tools/freeze/test/freeze.py", line 95, in copy_source_tree
    shutil.copytree(oldroot, newroot, ignore=ignore_non_src)
  File "/home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Lib/shutil.py", line 588, in copytree
    return _copytree(entries=entries, src=src, dst=dst, symlinks=symlinks,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/Lib/shutil.py", line 542, in _copytree
    raise Error(errors)
shutil.Error: [('/home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/build/test_python_33783æ/@test_33783_tmpæ2', '/tmp/test_python_a47pyah_/tmpghkm1g6y/cpython/build/test_python_33783æ/@test_33783_tmpæ2', "[Errno 2] No such file or directory: '/home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/build/test_python_33783æ/@test_33783_tmpæ2'"), (<DirEntry 'test_python_33783æ'>, '/tmp/test_python_a47pyah_/tmpghkm1g6y/cpython/build/test_python_33783æ', "[Errno 2] No such file or directory: '/home/dje/cpython-buildarea/3.x.edelsohn-sles-z/build/build/test_python_33783æ'")]