go runtime_error ai_generated true

警告：数据竞争

WARNING: DATA RACE

ID: go/goroutine-race-condition

其他格式: JSON · Markdown 中文 · English
80%修复率
85%置信度
0证据数
2024-07-20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 — — —

根因分析

多个协程并发访问同一变量且未同步，至少有一个是写操作

English

Multiple goroutines access the same variable concurrently without synchronization, and at least one is a write

generic

解决方案

  1. 90% 成功率 Use mutex to protect shared variable access 
    var mu sync.Mutex
var counter int
mu.Lock()
counter++
mu.Unlock()
  2. 85% 成功率 Use channels to communicate instead of sharing memory 
    ch := make(chan int)
go func() {
    ch <- 1
}()
val := <-ch

无效尝试

常见但无效的做法:

  1. Adding time.Sleep to reduce race likelihood 95% 失败

    Sleep does not synchronize access; race condition still exists and may manifest under different loads

  2. Using atomic operations on non-atomic types 80% 失败

    Atomic package only works on specific types; using it incorrectly can cause data races