go runtime_error ai_generated true

警告：数据竞争 - goroutine 6 在地址 0x00c000012345 写入

WARNING: DATA RACE - Write at 0x00c000012345 by goroutine 6

ID: go/data-race-on-variable

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80%修复率
87%置信度
0证据数
2024-06-25首次发现

版本兼容性

版本状态引入弃用备注
1.22 active — — —

根因分析

并发读写共享变量而没有同步。

English

Concurrent reads and writes to a shared variable without synchronization.

generic

解决方案

  1. 95% 成功率 
    var mu sync.Mutex
var x int
// Write
mu.Lock()
x = 1
mu.Unlock()
// Read
mu.Lock()
_ = x
mu.Unlock()
  2. 90% 成功率 
    var x atomic.Int32
x.Store(1)
_ = x.Load()

无效尝试

常见但无效的做法:

  1. 50% 失败

    Reads still race unless also atomic.

  2. 100% 失败

    Go doesn't have volatile; no effect.

  3. 90% 失败

    Sleep doesn't establish happens-before relationship.