go runtime_error ai_generated true

致命错误：所有 goroutine 都在休眠 - 死锁！（主函数未等待就退出）

fatal error: all goroutines are asleep - deadlock! (main exits without waiting)

ID: go/goroutine-not-joining

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80%修复率
85%置信度
0证据数
2024-08-01首次发现

版本兼容性

版本状态引入弃用备注
1.20 active — — —
1.22 active — — —

根因分析

主函数退出时其他 goroutine 仍在运行，但它们阻塞在通道或其他操作上，导致死锁检测。

English

Main function exits while other goroutines are still running, but they are blocked on channels or other operations, causing deadlock detection.

generic

解决方案

  1. 95% 成功率 
    Use sync.WaitGroup to wait for all goroutines to finish before returning from main.
  2. 90% 成功率 
    Use a done channel and close it when all work is done; main blocks on <-done.

无效尝试

常见但无效的做法:

  1. 70% 失败

    Sleep is nondeterministic; goroutines may finish later or never, and it's inefficient.

  2. 90% 失败

    Program exits prematurely, possibly leaving resources unclean or missing results.