[Pythonmac-SIG] NSUserDefaults causes crash on MOSXI

[Bob Ippolito]

On Mar 1, 2006, at 8:36 AM, Zachery Bir wrote:

> On Mar 1, 2006, at 11:32 AM, Zachery Bir wrote:
>
>> Can someone help me read this Crash log?
>>
>>    <http://www.urbanape.com/downloads/
>> TestUserDefaultsAppDelegate.crash.log>
>
>  From the crash log:
>
> Exception:  EXC_BAD_INSTRUCTION (0x0002)
> Code[0]:    0x0000000d
> Code[1]:    0x00000000
>
>
> Thread 0 Crashed:
> 0   com.apple.CoreFoundation       	0x90823daa _CFReadBytesFromFile  
> + 76
> 1   com.apple.CoreFoundation       	0x90823793
> CFURLCreateDataAndPropertiesFromResource + 284
> 2   com.apple.CoreFoundation       	0x9082d67a _loadXMLDomainIfStale
> + 299
> 3   com.apple.CoreFoundation       	0x90839978 fetchXMLValue + 38
> 4   com.apple.CoreFoundation       	0x908396ad
> _CFPreferencesDomainCreateValueForKey + 35
> 5   com.apple.Foundation           	0x926e0df8 -[NSUserDefaults
> initWithUser:] + 765
> 6   com.apple.Foundation           	0x926e096c +[NSUserDefaults
> standardUserDefaults] + 131
>
> Reading bytes from file == endian issue?

Maybe, but it says XML...

The first thing I would do is take gdb and figure out what file it's  
looking at... that's the second argument to  
CFURLCreateDataAndPropertiesFromResource.  I'm guessing it would live  
on the stack, but I haven't used gdb on intel enough lately to  
remember what the offset is.

Alternatively you could run it under ktrace to see which file it  
opens.  There should be a NAMI with the path it's opening.

-bob