go runtime_error ai_generated true

警告：数据竞争：协程X写入，协程Y读取（结构体字段）

WARNING: DATA RACE: Write by goroutine X, Read by goroutine Y (struct field)

ID: go/goroutine-racy-struct-field

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80%修复率
88%置信度
0证据数
2026-03-05首次发现

版本兼容性

版本状态引入弃用备注
1.0 active — — —
1.20 active — — —

根因分析

多个协程在没有同步的情况下访问同一个结构体字段。

English

Multiple goroutines accessing the same struct field without synchronization.

generic

解决方案

  1. 95% 成功率 Use mutex to protect struct field 
    type Counter struct {
    mu sync.Mutex
    val int
}
func (c *Counter) Inc() {
    c.mu.Lock()
    c.val++
    c.mu.Unlock()
}
  2. 85% 成功率 Use atomic.Value for struct 
    var v atomic.Value
v.Store(MyStruct{Field: 42})
s := v.Load().(MyStruct)

无效尝试

常见但无效的做法:

  1. Using atomic operations on non-atomic types 70% 失败

    atomic.AddInt64 works only on int64; other types need different approach.

  2. Copying struct before access 80% 失败

    Copy doesn't prevent race; original struct still accessed.