Sudden crash in [NSApplication sendEvent:]

j o a r joar at joar.com
Thu Sep 6 04:33:43 PDT 2007


On 6 sep 2007, at 13.15, Виктор Борщак wrote:

> I hope that this question is not really stupid but I honestly can't  
> find a solution for a looong time.
> The application I've been writing crashes on [NSApplication  
> sendEvent:] (see the crash log below). It happens quite often but  
> with no connection to user actions as it seems. It may crash after  
> 5 or 10 minutes of work.. or few hours. Once it crashed during  
> startup...


To me it looks like a message sent to a deallocated object. The  
normal thing to do to track down such a problem would be to leverage  
NSZombieEnabled.

	<http://www.google.com/search?q=site:developer.apple.com 
+NSZombieEnabled>

Crashing during launching of your application doesn't sound typical  
to a standard zombie though. Do you have a clean (no haxies or input  
managers) and known good system? Have this problem been reported on  
any other machines besides yours? Could it be a random memory smasher  
(typically from you writing some "unsafe" C-code)? Random memory  
smashers are best caught using GuardMalloc:

	<http://www.google.com/search?q=site:developer.apple.com+GuardMalloc>

j o a r




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