8000 `test_external_inspection`: `test_async_remote_stack_trace` fails intermittently · Issue #133425 · python/cpython · GitHub
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test_external_inspection: test_async_remote_stack_trace fails intermittently #133425

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encukou opened this issue May 5, 2025 · 7 comments
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test_external_inspection: test_async_remote_stack_trace fails intermittently #133425

encukou opened this issue May 5, 2025 · 7 comments
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3.14 bugs and security fixes stdlib Python modules in the Lib dir topic-asyncio type-bug An unexpected behavior, bug, or error

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@encukou
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encukou commented May 5, 2025 •
edited by github-actions bot
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Bug report

test_async_remote_stack_trace and test_asyncgen_remote_stack_trace from test_external_inspection. For example: on build 1128 on Debian root buildbot

======================================================================
FAIL: test_async_remote_stack_trace (test.test_external_inspection.TestGetStackTrace.test_async_remote_stack_trace) (task_factory_variant='asyncio.new_event_loop')
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/test/test_external_inspection.py", line 269, in test_async_remote_stack_trace
    self.assertEqual(stack_trace, expected_stack_trace)
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: Lists differ: [[('c[62 chars]y', 10), ('c4', '/tmp/test_python_0gbnot0i/tmp[1293 chars]]]]]] != [[('c[62 chars]y', 11), ('c4', '/tmp/test_python_0gbnot0i/tmp[1308 chars]]]]]]
First differing element 0:
[('c5[61 chars]y', 10), ('c4', '/tmp/test_python_0gbnot0i/tmp[179 chars] 21)]
[('c5[61 chars]y', 11), ('c4', '/tmp/test_python_0gbnot0i/tmp[179 chars] 21)]
Diff is 2008 characters long. Set self.maxDiff to None to see it.
======================================================================
FAIL: test_async_remote_stack_trace (test.test_external_inspection.TestGetStackTrace.test_async_remote_stack_trace) (task_factory_variant='new_eager_loop')
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/test/test_external_inspection.py", line 269, in test_async_remote_stack_trace
    self.assertEqual(stack_trace, expected_stack_trace)
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: Lists differ: [[('c[62 chars]y', 10), ('c4', '/tmp/test_python_0gbnot0i/tmp[1293 chars]]]]]] != [[('c[62 chars]y', 11), ('c4', '/tmp/test_python_0gbnot0i/tmp[1308 chars]]]]]]
First differing element 0:
[('c5[61 chars]y', 10), ('c4', '/tmp/test_python_0gbnot0i/tmp[179 chars] 21)]
[('c5[61 chars]y', 11), ('c4', '/tmp/test_python_0gbnot0i/tmp[179 chars] 21)]
Diff is 2008 characters long. Set self.maxDiff to None to see it.
----------------------------------------------------------------------
@encukou encukou added type-bug An unexpected behavior, bug, or error topic-asyncio stdlib Python modules in the Lib dir labels May 5, 2025
@github-project-automation github-project-automation bot moved this to Todo in asyncio May 5, 2025
@vstinner vstinner marked this as a duplicate of #133428 May 5, 2025
@vstinner vstinner mentioned this issue May 5, 2025
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@vstinner
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vstinner commented May 5, 2025

I closed my issue #133428 as a duplicate of this one.

@picnixz picnixz added the 3.14 bugs and security fixes label May 5, 2025
@pablogsal
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Will take a look today but the problem seems to be that matching line numbers is racy

@vstinner
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vstinner commented May 5, 2025

The issue was maybe fixed by #133422.

@vstinner vstinner mentioned this issue May 5, 2025
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@vstinner
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vstinner commented May 5, 2025

Failure one hour ago on PPC64LE Fedora Stable Refleaks 3.x: https://buildbot.python.org/#/builders/280/builds/1893

FAIL: test_async_remote_stack_trace (test.test_external_inspection.TestGetStackTrace.test_async_remote_stack_trace) (task_factory_variant='asyncio.new_event_loop')
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-ppc64le.refleak/build/Lib/test/test_external_inspection.py", line 269, in test_async_remote_stack_trace
    self.assertEqual(stack_trace, expected_stack_trace)
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: Lists differ: [[('c[62 chars]y', 10), ('c4', '/tmp/test_python_qxb4meok/tmp[1449 chars]]]]]] != [[('c[62 chars]y', 11), ('c4', '/tmp/test_python_qxb4meok/tmp[1464 chars]]]]]]

First differing element 0:
[('c5[61 chars]y', 10), ('c4', '/tmp/test_python_qxb4meok/tmp[179 chars] 21)]
[('c5[61 chars]y', 11), ('c4', '/tmp/test_python_qxb4meok/tmp[179 chars] 21)]

Diff is 2164 characters long. Set self.maxDiff to None to see it.

@pablogsal
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There are more places where the line numbers may change but we can use the same technique

@vstinner
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vstinner commented May 5, 2025

There are more places where the line numbers may change but we can use the same technique

Right. Please see my fix #133433.

@vstinner
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vstinner commented May 5, 2025

It should be fixed by #133433.

6663
@vstinner vstinner closed this as completed May 5, 2025
@github-project-automation github-project-automation bot moved this from Todo to Done in asyncio May 5, 2025
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3.14 bugs and security fixes stdlib Python modules in the Lib dir topic-asyncio type-bug An unexpected behavior, bug, or error
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