[issue45453] test_embed: random crash on AMD64 Fedora Rawhide Clang 3.x

[STINNER Victor]

STINNER Victor  added the comment:


New changeset 7e74d99c532f3eb55a86d10d30c068b03f2ad025 by Miss Islington (bot) 
in branch '3.10':
bpo-45453: Fix test_embed.StdPrinterTests (GH-28916) (GH-28917)
https://github.com/python/cpython/commit/7e74d99c532f3eb55a86d10d30c068b03f2ad025


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[issue45453] test_embed: random crash on AMD64 Fedora Rawhide Clang 3.x

[miss-islington]

Change by miss-islington :


--
nosy: +miss-islington
nosy_count: 1.0 -> 2.0
pull_requests: +27208
pull_request: https://github.com/python/cpython/pull/28917

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[issue45453] test_embed: random crash on AMD64 Fedora Rawhide Clang 3.x

[STINNER Victor]

STINNER Victor  added the comment:


New changeset 678433f25e0d08dad7edf72be8f0cf9420e4ed2c by Victor Stinner in 
branch 'main':
bpo-45453: Fix test_embed.StdPrinterTests (GH-28916)
https://github.com/python/cpython/commit/678433f25e0d08dad7edf72be8f0cf9420e4ed2c


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[issue45453] test_embed: random crash on AMD64 Fedora Rawhide Clang 3.x

[STINNER Victor]

Change by STINNER Victor :


--
keywords: +patch
pull_requests: +27207
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/28916

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[issue45453] test_embed: random crash on AMD64 Fedora Rawhide Clang 3.x

[STINNER Victor]

STINNER Victor  added the comment:

Ah, I reproduced a crash locally:

0:00:19 load avg: 2.00 [3/3/1] test_embed crashed (Exit code -11)
Fatal Python error: Segmentation fault

Current thread 0x7fef0ea9f2c0 (most recent call first):
  File "/home/vstinner/python/main/Lib/test/test_embed.py", line 1560 in 
create_printer
  File "/home/vstinner/python/main/Lib/test/test_embed.py", line 1595 in 
test_disallow_instantiation

The crash happens when sys.__stdout__.fileno() is not 1 or 2. It happens with 
my recents changes in bpo-45410.

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[issue45453] test_embed: random crash on AMD64 Fedora Rawhide Clang 3.x

[STINNER Victor]

STINNER Victor  added the comment:

Oh, maybe this is no traceback on a crash because of my recent libregrtest 
changes in bpo-45410.

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[issue45453] test_embed: random crash on AMD64 Fedora Rawhide Clang 3.x

[STINNER Victor]

STINNER Victor  added the comment:

It also crashed on the Address Sanitizer job of GitHub Action:
https://github.com/python/cpython/runs/3877327574

0:09:15 load avg: 4.46 [267/413/1] test_embed crashed (Exit code -11) -- 
running: test_gdb (1 min 2 sec), test_peg_generator (57.4 sec)

== Tests result: FAILURE then SUCCESS ==

1 re-run test:
test_embed

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[issue45453] test_embed: random crash on AMD64 Fedora Rawhide Clang 3.x

[STINNER Victor]

New submission from STINNER Victor :

test_embed does crash randomly on AMD64 Fedora Rawhide Clang 3.x:

* https://buildbot.python.org/all/#/builders/188/builds/880
* https://buildbot.python.org/all/#/builders/188/builds/879

So far, I failed to reproduce the issue.

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components: Tests
messages: 403779
nosy: vstinner
priority: normal
severity: normal
status: open
title: test_embed: random crash on AMD64 Fedora Rawhide Clang 3.x
versions: Python 3.11

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