go runtime_error ai_generated true

警告：数据竞争 写操作 0x... 由 goroutine 7 执行： main.main.func1() /main.go:12 +0x... 之前读操作 0x... 由主 goroutine 执行： main.main() /main.go:9 +0x...

WARNING: DATA RACE Write at 0x... by goroutine 7: main.main.func1() /main.go:12 +0x... Previous read at 0x... by main goroutine: main.main() /main.go:9 +0x...

ID: go/race-detector-detected

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80%修复率
89%置信度
0证据数
2024-03-05首次发现

版本兼容性

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

根因分析

race 检测器（-race）发现 goroutine 之间对共享内存的未同步访问。

English

The race detector (-race) found unsynchronized access to shared memory between goroutines.

generic

解决方案

  1. 95% 成功率 
    var mu sync.Mutex
mu.Lock()
counter++
mu.Unlock()
  2. 90% 成功率 
    results := make(chan int, 1)
go func() { results <- compute() }()
v := <-results

无效尝试

常见但无效的做法:

  1. 95% 失败

    Hides the bug; production will still corrupt data.

  2. 90% 失败

    Reduces but does not eliminate race; detector still flags it.