go runtime_error ai_generated true

警告：数据竞争 Goroutine 7 在 0x00c0000b4010 处读取：

WARNING: DATA RACE Read at 0x00c0000b4010 by goroutine 7:

ID: go/data-race-detector

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80%修复率
90%置信度
0证据数
2024-02-02首次发现

版本兼容性

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

根因分析

竞争检测器（go test -race / go run -race）发现对同一内存位置的无同步并发访问。通常是共享结构体字段或切片索引在无 mutex/atomic 保护下访问。

English

The race detector (go test -race / go run -race) found unsynchronized concurrent access to the same memory location. Usually a shared struct field or slice index accessed without a mutex or atomic.

generic

解决方案

  1. 95% 成功率 
    var hits atomic.Int64
hits.Add(1)
n := hits.Load()
  2. 97% 成功率 
    type Counter struct {
    mu sync.Mutex
    n  int
}
func (c *Counter) Inc() { c.mu.Lock(); c.n++; c.mu.Unlock() }
  3. 92% 成功率 
    results := make(chan Result)
go func() { results <- compute() }()
r := <-results // ownership transferred

无效尝试

常见但无效的做法:

  1. 95% 失败

    Hides the bug; production crashes or corrupts state under real concurrency.

  2. 85% 失败

    Does not establish happens-before; race remains and detector still fires.