HelloZeroNet/ZeroNet

ZeroNet freezes during startup because of bogus timeout values passed to kevent.

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#1,202 建立於 2017年12月9日

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 (0 留言) (0 反應) (0 負責人)JavaScript (18,200 star) (2,245 fork)batch import
bughelp wanted

描述

  • ZeroNet version: 0.6.0
    • Operating system:FreeBSD 11.1
    • Web browser:Chrome
    • Tor status: always
    • Opened port: no
    • Special configuration: n/a

ZeroNet freezes during startup. The problem was traced to the kevent call made by libev from gevent. Bogus timeout value is passed to kevent. gevent maintainer claims that race condition in ZeroNet causes the problem.

See details here: https://github.com/gevent/gevent/issues/1051#issuecomment-350490266

貢獻者指南

技術棧
python
領域
backend
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
4
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-2 days
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
understanding of gevent and libevdebugging race conditions
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
15
研究方向
Investigate the race condition described in the linked gevent issue (https://github.com/gevent/gevent/issues/1051#issuecomment 350490266). The problem occurs during startup when bogus timeout values are passed to kevent by libev/gevent. Start by examining the initialization sequence in the ZeroNet codebase where gevent is used, focusing on any timeout handling or socket operations that could lead to invalid state. Consider reproducing the issue on FreeBSD 11.1 to confirm the behavior.