Clearing stack frame of suspended coroutine causes coroutine to malfunction

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难度
4/5
预计耗时
3-5 天
新手友好度
30/100
Issue 类型
缺陷
描述清晰度
需要澄清
活跃度
停滞
技术栈
python
领域
compilers

调研方向

从附带的 async_bug.py 复现程序开始,针对当前 CPython 构建运行它,以观察挂起协程的失败。跟踪解释器核心对已清除协程堆栈帧的处理,然后添加一个展示预期行为的回归测试,并验证该复现程序不再出现故障。

由索引模型根据 Issue 内容生成。

描述

interpreter-core type-bug
BPO 42566
Nosy @zerotypic
Files
  • async_bug.py
  • 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 = None
    created_at = <Date 2020-12-04.08:46:49.162>
    labels = ['interpreter-core', 'type-bug']
    title = 'Clearing stack frame of suspended coroutine causes coroutine to malfunction'
    updated_at = <Date 2020-12-04.08:46:49.162>
    user = 'https://github.com/zerotypic'
    

    bugs.python.org fields:

    activity = <Date 2020-12-04.08:46:49.162>
    actor = 'zerotypic'
    assignee = 'none'
    closed = False
    closed_date = None
    closer = None
    components = ['Interpreter Core']
    creation = <Date 2020-12-04.08:46:49.162>
    creator = 'zerotypic'
    dependencies = []
    files = ['49654']
    hgrepos = []
    issue_num = 42566
    keywords = []
    message_count = 1.0
    messages = ['382472']
    nosy_count = 1.0
    nosy_names = ['zerotypic']
    pr_nums = []
    priority = 'normal'
    resolution = None
    stage = None
    status = 'open'
    superseder = None
    type = 'behavior'
    url = 'https://bugs.python.org/issue42566'
    versions = ['Python 3.6']
    

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