设备上的 iPod Touch 调试崩溃（EXC_BAD_INSTRUCTION、EXC_BAD_ACCESS）
我使用 iPod Touch 2G 作为开发设备，并使用 Xcode 3.1.3。当我尝试从调试器中的断点跟踪设备上的执行时，我收到 EXC_BAD_INSTRUCTION、EXC_BAD_ACCESS 或调试器无法反汇编某些内容的一些错误。同样的事情在 iPhone Simulator 上也能正常工作。以前我已经能够在其他一些 iPod Touch 2G 和 iPhone 3G 设备上从断点跟踪执行情况。
如果没有被断点中断，应用程序将正常工作。此外，在任何“步进”之前，我可以调查当前堆栈上的变量，它们的值似乎是正确的。
该设备是否可能存在某种缺陷，或者我应该更仔细地研究我的项目配置（以及我应该寻找什么）？
编辑：在使用项目配置后，我发现调试器在禁用“Compile for Thumb”选项后开始正常运行。现在的问题是为什么会这样？
I'm using iPod Touch 2G as a developement device with Xcode 3.1.3. When I try to trace the execution on the device from a breakpoint in the debugger I get EXC_BAD_INSTRUCTION, EXC_BAD_ACCESS or some error with debugger not being able do disassemble something. The same thing will work properly on iPhone Simulator. Previously I've been able to trace the execution from a breakpoint on some other iPod Touch 2G and iPhone 3G devices.
If not interrupted with a breakpoint the app will work properly. Also before any "stepping" I can investigate variables currently on the stack and their values seem to be correct.
Is it possible that the device is somehow flawed or should I look into my project configuration more closely (and what should I look for)?
EDIT: After playing with project configuration I've found that debugger starts to act normally after disabling "Compile for Thumb" option. The question now is why is it so?
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检查您的构建设置，无论是 iOS 3.2 还是低于最新版本。我通过在项目设置中将 Base SDK 更改为最新的 iOS 4.0 解决了这个问题。
祝你好运
Check your build setting, whether it was in iOS 3.2 or lower than latest. This issue I have solved by changing the Base SDK to the latest iOS 4.0 in my project settings.
Good luck
这篇文章节省了我几个小时。这应该是您需要深入挖掘以了解根本问题所在的全部内容。 http://www.codza.com/how-to-debug- exc_bad_access-on-iphone
祝你好运！
This post saved me hours. It should be all you need to dig deep enough to see just what the root issue is. http://www.codza.com/how-to-debug-exc_bad_access-on-iphone
Good Luck!