go runtime_error ai_generated true

致命错误：所有 goroutine 都处于休眠状态 - 死锁！（goroutine 1 [通道发送]）

fatal error: all goroutines are asleep - deadlock! (goroutine 1 [chan send])

ID: go/goroutine-leak-no-receiver

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80%修复率
86%置信度
0证据数
2024-04-01首次发现

版本兼容性

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

根因分析

一个 goroutine 在向没有活动接收者的通道发送时卡住，主 goroutine 在等待它，导致死锁。

English

A goroutine is stuck sending to a channel with no active receiver, and the main goroutine is waiting for it, causing a deadlock.

generic

解决方案

  1. 95% 成功率 
    ch := make(chan int); go func() { <-ch }(); ch <- 42
  2. 85% 成功率 
    ch := make(chan int, 1); ch <- 42

无效尝试

常见但无效的做法:

  1. 75% 失败

    If sender sends more than buffer size, it still blocks without receiver.

  2. 90% 失败

    Sleep doesn't add a receiver; block remains after sleep.