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Segfault in _PyTrash_begin when faulthandler tries to dump thread stacks #88615

@dgrisby

Description

@dgrisby
mannequin
BPO 44449
Nosy @dgrisby, @vstinner, @miss-islington
PRs
  • [3.10] bpo-44449: faulthandler don't modify frame refcnt #27850
  • [3.9] bpo-44449: faulthandler don't modify frame refcnt (GH-27850) #28066
  • 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 = None
    closed_at = <Date 2021-08-30.14:04:32.443>
    created_at = <Date 2021-06-18.10:27:10.715>
    labels = ['3.10', 'library', '3.9', 'type-crash']
    title = 'Segfault in _PyTrash_begin when faulthandler tries to dump thread stacks'
    updated_at = <Date 2021-08-30.14:04:32.442>
    user = 'https://github.com/dgrisby'

    bugs.python.org fields:

    activity = <Date 2021-08-30.14:04:32.442>
    actor = 'vstinner'
    assignee = 'none'
    closed = True
    closed_date = <Date 2021-08-30.14:04:32.443>
    closer = 'vstinner'
    components = ['Library (Lib)']
    creation = <Date 2021-06-18.10:27:10.715>
    creator = 'dgrisby'
    dependencies = []
    files = []
    hgrepos = []
    issue_num = 44449
    keywords = ['patch']
    message_count = 5.0
    messages = ['396042', '399828', '400599', '400606', '400607']
    nosy_count = 3.0
    nosy_names = ['dgrisby', 'vstinner', 'miss-islington']
    pr_nums = ['27850', '28066']
    priority = 'normal'
    resolution = 'fixed'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'crash'
    url = 'https://bugs.python.org/issue44449'
    versions = ['Python 3.9', 'Python 3.10']

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      3.10only security fixes3.9only security fixesstdlibPython modules in the Lib dirtype-crashA hard crash of the interpreter, possibly with a core dump

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