EXC_BAD_INSTRUCTION(代码= EXC_I386_INVOP，子代码= 0x0) [英] EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)

问题描述

我真的不知道为什么有这个错误.

I really can't figure out why I have this bug.

首先调试器在机器代码处停止

First of all the debugger stop at machine code

该线程也没有显示任何内容.程序实际上没有代码停止

The thread also shows nothing. The program stop at no code actually

所以它与_dispatch_worker_thread有关

So it has something to do with _dispatch_worker_thread

那是什么?

以任何方式我可以调试它吗?我应该回滚吗?

Any way how I can debug this? Should I just rollback?

推荐答案

当您运行CPU不支持的(vector)扩展名时，会发生这种崩溃.

This kind of crash will happen when you are running a (vector)extension which is not supported on your CPU.

例如，在xcode 5中的项目设置/构建设置/代码生成"下，将 启用附加的矢量扩展名"到"AVX2".生成可执行文件.

For example, in xcode 5 under "project-settings / build-settings / Code Generation, set the "Enable Additional Vector extensions" to "AVX2". Build your executable.

现在在以下位置运行它:

Now run it on an:

• Intel Core i5:使用"exc_i386_invop子代码= 0x0"时，它将崩溃(无论编译器决定使用avx2).
• 英特尔酷睿i7:它将运行.

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