go runtime_error ai_generated true

fatal error: 所有 goroutine 都处于休眠状态 - 死锁！

fatal error: all goroutines are asleep - deadlock!

ID: go/all-goroutines-asleep-deadlock

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80%修复率
90%置信度
0证据数
2024-07-02首次发现

版本兼容性

版本状态引入弃用备注
1.0+ active — — —

根因分析

所有 goroutine 都阻塞在 channel 操作、互斥锁或 WaitGroup 上，没有任何可运行的 goroutine 能解除阻塞。运行时检测到完全静止后终止程序。

English

Every goroutine is blocked on a channel operation, mutex, or WaitGroup with no runnable goroutine to unblock them. The runtime detects total quiescence and aborts.

generic

解决方案

  1. 93% 成功率 
    ch := make(chan int)
done := make(chan struct{})
go func() { defer close(done); for v := range ch { _ = v } }()
for i := 0; i < 10; i++ { ch <- i }
close(ch)
<-done
  2. 88% 成功率 
    // runtime: kill -QUIT <pid> or send SIGQUIT; inspect 'goroutine N [chan send/receive]' lines

无效尝试

常见但无效的做法:

  1. 70% 失败

    Timeout converts the deadlock into a silent timeout error, hiding the missing sender/receiver. The program still fails to make progress.

  2. 75% 失败

    If no receiver ever reads, buffering only delays the deadlock; once the buffer fills, the sender blocks again.