Re: Understanding Application crash
Re: Understanding Application crash
- Subject: Re: Understanding Application crash
- From: Appa Rao Mulpuri <email@hidden>
- Date: Tue, 25 Mar 2014 05:48:48 +0000
- Thread-topic: Understanding Application crash
Thanks for the reply Jens.
On 3/25/14 11:06 AM, "Jens Alfke" <email@hidden> wrote:
>
>On Mar 24, 2014, at 10:25 PM, Appa Rao Mulpuri <email@hidden>
>wrote:
>
>> What is the best way to understand the Cocoa application crashes? Some
>>times my application is getting crashed, while clicking on the
>>NSButtons, but it is not always and very rarely. It is happening in the
>>production, not in the staging environment.
>
>Well, look at what¹s in the backtrace:
>
>> 0 CoreFoundation 0x00007fff8a866b06
>>__exceptionPreprocess + 198
>> 1 libobjc.A.dylib 0x00007fff8e2ba3f0
>>objc_exception_throw + 43
>> 2 CoreFoundation 0x00007fff8a8faf49
>>-[NSException raise] + 9
>
>It¹s throwing an exception. Somewhere else in the crash report it should
>say what type of exception it is.
Exception type is:
ERROR 2014-03-22 08:21:59 +0530 An uncaught exception occured
Name: NSUncaughtSystemExceptionException
Reason: Uncaught system exception: signal 11
>
>> 4 libsystem_c.dylib 0x00007fff8770394a _sigtramp +
>>26
>> 5 ??? 0x0000000000000000 0x0 + 0
>> 6 AppKit 0x00007fff8d3ed7b7 -[NSControl
>>sendAction:to:] + 85
>
>Since the exception is triggered by a control sending its action, the
>problem is likely that the object that¹s the target of the control got
>deallocated.
Agreed, Since this exception is getting rarely. Do we have any provision
to extend the stack trace to print in which method the object is getting
deallocated in our class?
>
>‹Jens
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