go runtime_error ai_generated true

致命错误:所有goroutine都处于休眠状态 - 死锁!(select没有可用的case)

fatal error: all goroutines are asleep - deadlock! (select with no cases)

ID: go/select-no-case-ready

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80%修复率
87%置信度
0证据数
2024-05-30首次发现

版本兼容性

版本状态引入弃用备注
1.0 active
1.21 active

根因分析

select语句没有任何case就绪,也没有default,导致goroutine永久阻塞。

English

A select statement has no case that is ready, and no default, causing the goroutine to block forever.

generic

解决方案

  1. 90% 成功率
    Ensure at least one channel in the select will eventually receive or send. Use context or done channels.
  2. 85% 成功率
    Include a default case to handle the situation when no channel is ready.

无效尝试

常见但无效的做法:

  1. 60% 失败

    Adding default changes the semantics; it may cause busy looping.

  2. 80% 失败

    Sleep does not guarantee that channels will become ready; it just delays.

  3. 70% 失败

    This may break the logic and cause other issues.