go runtime_error ai_generated true

panic: runtime error: 无效内存地址或 nil 指针解引用 [信号 SIGSEGV]

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

ID: go/panic-runtime-error-invalid-memory-address-or-nil-pointer-

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80%修复率
88%置信度
0证据数
2024-10-04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

某个 goroutine 解引用了 nil 指针，通常是 goroutine 启动前未初始化的结构体字段或接口。

English

A goroutine dereferences a nil pointer, often a struct field or interface that was never initialized before the goroutine started.

generic

解决方案

  1. 92% 成功率 
    Initialize all shared pointers before launching goroutines, and capture them as arguments: go worker(cfg) where cfg is non-nil.
  2. 85% 成功率 
    Add explicit nil checks at goroutine entry: if cfg == nil { log.Fatal("cfg is nil") }.

无效尝试

常见但无效的做法:

  1. 90% 失败

    Recover in main does not catch panics in other goroutines; each goroutine needs its own recover, and hiding the panic masks the bug.

  2. 75% 失败

    Creates a zero-valued object disconnected from the shared state the caller expected, causing silent logic errors.