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mmap resize fails on anonymous memory #46985

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Description

@kmk
mannequin
Issue body actions
BPO 2733
Nosy @amauryfa, @abalkin, @tjguk, @tpn
Superseder
  • bpo-40915: multiple problems with mmap.resize() in Windows
  • Files
  • testofResizeB.txt: Stripped down code to illustrate resize fail
  • testofResize.py.txt
  • mmapmodule.patch: mmap patch against r69672
  • mmapmodule.patch
  • mmap_disable_anonymous_resize.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/tjguk'
    closed_at = <Date 2021-10-23.13:37:29.627>
    created_at = <Date 2008-05-01.17:04:16.288>
    labels = ['extension-modules', 'type-bug', '3.10', '3.11']
    title = 'mmap resize fails on anonymous memory'
    updated_at = <Date 2021-10-23.13:53:02.975>
    user = 'https://bugs.python.org/kmk'

    bugs.python.org fields:

    activity = <Date 2021-10-23.13:53:02.975>
    actor = 'tim.golden'
    assignee = 'tim.golden'
    closed = True
    closed_date = <Date 2021-10-23.13:37:29.627>
    closer = 'tim.golden'
    components = ['Extension Modules']
    creation = <Date 2008-05-01.17:04:16.288>
    creator = 'kmk'
    dependencies = []
    files = ['10151', '10170', '13107', '13131', '14454']
    hgrepos = []
    issue_num = 2733
    keywords = ['patch']
    message_count = 16.0
    messages = ['66036', '66044', '66097', '82239', '82243', '82335', '82336', '82421', '82422', '83201', '83202', '90147', '127748', '141256', '404855', '404874']
    nosy_count = 7.0
    nosy_names = ['amaury.forgeotdarc', 'belopolsky', 'ocean-city', 'tim.golden', 'kmk', 'trent', 'zolnie']
    pr_nums = []
    priority = 'normal'
    resolution = 'duplicate'
    stage = 'resolved'
    status = 'closed'
    superseder = '40915'
    type = 'behavior'
    url = 'https://bugs.python.org/issue2733'
    versions = ['Python 3.10', 'Python 3.11']

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    3.10only security fixesonly security fixes3.11only security fixesonly security fixesextension-modulesC modules in the Modules dirC modules in the Modules dirtype-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

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