go runtime_error ai_generated true

panic: runtime error: 无效内存地址或 nil 指针解引用 [signal SIGSEGV...]（位于 goroutine N）

panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x...] (in goroutine N)

ID: go/goroutine-nil-pointer-in-goroutine

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80%修复率

88%置信度

0证据数

2024-02-05首次发现

版本兼容性

版本	状态	引入	弃用	备注
1.18	active	—	—	—
1.21	active	—	—	—
1.22	active	—	—	—

根因分析

goroutine 解引用了 nil 指针，通常是因为它捕获了尚未赋值的变量，或结构体字段未初始化。

English

A goroutine dereferences a nil pointer, often because it captured a variable that was not yet assigned or a struct field was left uninitialized.

generic

解决方案

90% 成功率

for _, item := range items {
    item := item
    go func(it *Item) {
        process(it)
    }(&item)
}

92% 成功率

svc := &Service{Client: newClient()}
go svc.Run()

无效尝试

常见但无效的做法:

60% 失败
If the nil is a logic error (e.g., missing initialization), skipping the work silently hides the bug.
80% 失败
Recovering prevents a crash but does not fix the root cause; the same nil deref will recur.