go runtime_error ai_generated true

致命错误：所有goroutine都处于睡眠状态 - 死锁！（sync.Mutex锁顺序）

fatal error: all goroutines are asleep - deadlock! (sync.Mutex lock ordering)

ID: go/goroutine-mutex-lock-deadlock

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80%修复率
86%置信度
0证据数
2024-09-05首次发现

版本兼容性

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

根因分析

两个或多个goroutine持有互斥锁并等待对方释放，形成循环依赖。

English

Two or more goroutines hold mutexes and wait for each other to release, creating a circular dependency.

generic

解决方案

  1. 95% 成功率 Always acquire locks in a consistent global order 
    // Lock mu1 then mu2; goroutine1: mu1.Lock(); mu2.Lock(); goroutine2: mu1.Lock(); mu2.Lock()
  2. 80% 成功率 Use try-lock pattern with channels 
    select { case <-mu: default: // avoid deadlock }

无效尝试

常见但无效的做法:

  1. Using sync.RWMutex instead of Mutex 90% 失败

    Does not fix lock ordering issue.

  2. Adding sleep to break deadlock 95% 失败

    Sleep does not resolve logical cycle.