go runtime_error ai_generated true

fatal error: sync: 解锁未加读锁的 RWMutex

fatal error: sync: RUnlock of unlocked RWMutex

ID: go/sync-rwmutex-unlock-of-unlocked

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80%修复率
87%置信度
0证据数
2024-11-09首次发现

版本兼容性

版本状态引入弃用备注
1.x active — — —

根因分析

在没有对应 RLock() 的情况下调用 RWMutex.RUnlock()。常因不同代码路径中 Lock/RLock 不匹配。

English

RWMutex.RUnlock() is called without a matching RLock(). Often due to mismatched Lock/RLock in different code paths.

generic

解决方案

  1. 95% 成功率 
    func (s *Store) Get(k string) (int, bool) {
    s.mu.RLock()
    defer s.mu.RUnlock()
    v, ok := s.m[k]
    return v, ok
}
  2. 90% 成功率 
    func (s *Store) read(fn func()) {
    s.mu.RLock()
    defer s.mu.RUnlock()
    fn()
}

无效尝试

常见但无效的做法:

  1. 65% 失败

    Loses read concurrency and does not fix the mismatch if the bug is elsewhere.

  2. 100% 失败

    Fatal error; not recoverable.