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android: test_importlib hangs on armv7 #71127

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xdegaye mannequin opened this issue May 3, 2016 · 5 comments
Closed

android: test_importlib hangs on armv7 #71127

xdegaye mannequin opened this issue May 3, 2016 · 5 comments
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@xdegaye
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3.7 (EOL) end of life build The build process and cross-build tests Tests in the Lib/test dir type-bug An unexpected behavior, bug, or error

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@xdegaye
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Mannequin

xdegaye mannequin commented May 3, 2016

BPO 26940
Nosy @brettcannon, @xdegaye, @moreati
Dependencies
  • bpo-26939: android: test_functools hangs on armv7
    		•
    Files
  • test_importlib_gdb_bt.txt: gdb back trace
  • setswitchinterval.patch
    		•

    Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = 'https://github.com/xdegaye'
closed_at = <Date 2016-12-08.11:03:07.678>
created_at = <Date 2016-05-03.15:42:14.104>
labels = ['3.7', 'type-bug', 'tests', 'build']
title = 'android: test_importlib hangs on armv7'
updated_at = <Date 2016-12-08.11:03:07.677>
user = 'https://github.com/xdegaye'

    bugs.python.org fields:

    activity = <Date 2016-12-08.11:03:07.677>
actor = 'xdegaye'
assignee = 'xdegaye'
closed = True
closed_date = <Date 2016-12-08.11:03:07.678>
closer = 'xdegaye'
components = ['Tests', 'Cross-Build']
creation = <Date 2016-05-03.15:42:14.104>
creator = 'xdegaye'
dependencies = ['26939']
files = ['42762', '45250']
hgrepos = []
issue_num = 26940
keywords = ['patch']
message_count = 5.0
messages = ['264743', '264758', '265011', '279589', '282704']
nosy_count = 4.0
nosy_names = ['brett.cannon', 'xdegaye', 'python-dev', 'Alex.Willmer']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue26940'
versions = ['Python 3.6', 'Python 3.7']
    @xdegaye
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    xdegaye mannequin commented May 3, 2016

    test_importlib hangs on an android emulator running an armv7 system image (but not on x86) at API level 21. The test suite hangs at

    test_deadlock (test.test_importlib.test_locks.Frozen_DeadlockAvoidanceTests) ...

    A cause of this problem may be related to the fact that the android arm emulator runs very, very slowly.

    @xdegaye xdegaye mannequin added stdlib Python modules in the Lib dir build The build process and cross-build type-bug An unexpected behavior, bug, or error labels May 3, 2016
    @xdegaye
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    xdegaye mannequin commented May 3, 2016

    Interestingly, all the tests (issues bpo-26938, bpo-26939, bpo-26940 and bpo-26941) that hang on arm use sys.setswitchinterval() aggressively.

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    xdegaye mannequin commented May 6, 2016

    Adding gdb backtrace.

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    xdegaye mannequin commented Oct 28, 2016

    Adding a dependency to bpo-26939.
    Patch attached.

    @xdegaye xdegaye mannequin added tests Tests in the Lib/test dir 3.7 (EOL) end of life and removed stdlib Python modules in the Lib dir labels Oct 28, 2016
    @xdegaye xdegaye mannequin self-assigned this Oct 28, 2016
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    python-dev mannequin commented Dec 8, 2016

    New changeset 1bb2f4b8440e by Xavier de Gaye in branch '3.6':
    Issue bpo-26940: Fix test_importlib that hangs on the Android armv7 qemu emulator.
    https://hg.python.org/cpython/rev/1bb2f4b8440e

    New changeset e401c5a95758 by Xavier de Gaye in branch 'default':
    Issue bpo-26940: Merge 3.6.
    https://hg.python.org/cpython/rev/e401c5a95758

    @xdegaye xdegaye mannequin closed this as completed Dec 8, 2016
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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