go runtime_error ai_generated true

致命错误：所有协程都处于睡眠状态 - 死锁！（上下文已取消）

fatal error: all goroutines are asleep - deadlock! (context canceled)

ID: go/goroutine-context-cancel-not-checked

其他格式: JSON · Markdown 中文 · English
80%修复率
87%置信度
0证据数
2026-02-14首次发现

版本兼容性

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

根因分析

协程在上下文被取消后阻塞在通道操作上，没有检查取消状态。

English

Goroutines block on channel operations after context is canceled, without checking cancellation.

generic

解决方案

  1. 95% 成功率 Always include ctx.Done() in select 
    select {
case <-ch:
case <-ctx.Done():
    return ctx.Err()
}
  2. 90% 成功率 Use context.WithTimeout to automatically cancel 
    ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
select {
case <-ch:
case <-ctx.Done():
    // timeout
}

无效尝试

常见但无效的做法:

  1. Ignoring context in select 90% 失败

    Context cancellation doesn't automatically unblock other channels.

  2. Using time.Sleep to wait for cancellation 80% 失败

    Sleep doesn't handle cancellation; goroutine still blocks.