go runtime_error ai_generated true

致命错误：所有 goroutine 都处于休眠状态 - 死锁！（goroutine 泄漏）

fatal error: all goroutines are asleep - deadlock! (goroutine leak)

ID: go/goroutine-leak-on-channel-block

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80%修复率
85%置信度
0证据数
2024-05-20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

Goroutine 在等待永远不会完成的通道操作时被阻塞，导致死锁。

English

Goroutines are blocked waiting on channel operations that never complete, leading to a deadlock.

generic

解决方案

  1. 90% 成功率 Use context with timeout to unblock goroutines 
    ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
select {
case <-ctx.Done():
    return
case ch <- data:
}
  2. 95% 成功率 Ensure every send has a corresponding receive in a separate goroutine 
    go func() { for v := range ch { process(v) } }()
ch <- data

无效尝试

常见但无效的做法:

  1. Adding more goroutines to unblock 90% 失败

    More goroutines may also block if they depend on the same channels.

  2. Increasing channel buffer size 80% 失败

    Buffering delays but does not solve the underlying missing consumer/producer.