go runtime_error ai_generated true

WARNING: DATA RACE Write at 0x... by goroutine 7: main.main.func1() /main.go:12 +0x... Previous read at 0x... by main goroutine: main.main() /main.go:9 +0x...

ID: go/race-detector-detected

Also available as: JSON · Markdown · 中文
80%Fix Rate
89%Confidence
0Evidence
2024-03-05First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1.18 active — — —
1.21 active — — —
1.22 active — — —

Root Cause

The race detector (-race) found unsynchronized access to shared memory between goroutines.

generic

中文

race 检测器（-race）发现 goroutine 之间对共享内存的未同步访问。

Workarounds

  1. 95% success 
    var mu sync.Mutex
mu.Lock()
counter++
mu.Unlock()
  2. 90% success 
    results := make(chan int, 1)
go func() { results <- compute() }()
v := <-results

Dead Ends

Common approaches that don't work:

  1. 95% fail

    Hides the bug; production will still corrupt data.

  2. 90% fail

    Reduces but does not eliminate race; detector still flags it.