问题
I have an iphone app. It seems to run fine. When I connect to a provisioned iphone to Xcode and run the App, the console log in the Organizer window, always complains about a Segmentation fault when quitting the app with the home key.
Has anyone else seen this, and do you have an idea of what the problem might be? I use a thread to load web pages in the backround, but I stop the thread when exiting.
My app does save some persistent information. When I use the build and analyze function I get some 2 potential memory leaks, but in each case I'm allocating an object and keeping it in an array.
Any ideas, or is this normal?
回答1:
Try running your application with NSZombieEnabled. This will tell you if you're over releasing any object. To enable zombies do the following:
- Choose Project > Edit Active Executable to open the executable Info window.
- Click Arguments.
- Click the add (+) button in the “Variables to be set in the environment” section.
- Enter NSZombieEnabled in the Name column and YES in the Value column.
- Make sure that the checkmark forthe NSZombieEnabled entry is selected.
回答2:
Upon exit your application can over-release an object try dumping each object before releasing it or do some debugging in dealloc method.
回答3:
Perhaps you are releasing some object more times than its retain count. Comment out -release calls in your dealloc methods (or elsewhere) until you find the culprit.
Then uncomment-out that call and look elsewhere in your code where you are trying to over-release that object.
If you are using convenience methods, for example, (e.g. [NSString stringWithFormat:@"..."]) as opposed to alloc-init methods (e.g. [[NSString alloc] initWithFormat:@"..."]) the resulting convenience object is autoreleased and should not be manually released.
回答4:
My problem was uididfaker and locationholic from cydia, and after uninstalling them xcode run on my iphone just fine.
来源：https://stackoverflow.com/questions/1849929/signal-11-segmentation-fault-on-iphone-app-exit