go runtime_error ai_generated true

致命错误：并发map读取和map写入

fatal error: concurrent map read and map write

ID: go/data-race-on-map

其他格式: JSON · Markdown 中文 · English
80%修复率
90%置信度
0证据数
2024-01-15首次发现

版本兼容性

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

根因分析

多个goroutine在没有同步的情况下并发访问map，导致运行时致命错误。

English

Multiple goroutines access a map concurrently without synchronization, causing a runtime fatal error.

generic

解决方案

  1. 95% 成功率 
    Use sync.RWMutex to protect reads and writes to the map.
  2. 90% 成功率 
    Use sync.Map which is safe for concurrent use.

无效尝试

常见但无效的做法:

  1. 90% 失败

    It can cause crashes or data corruption; ignoring is not safe.

  2. 40% 失败

    If not all accesses are protected, the race can still occur.

  3. 70% 失败

    Copying is expensive and does not solve the root race condition.