Sudden crash in [NSApplication sendEvent:]

[Виктор Борщак]

Hi folks!

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...

Is there anyone who can suggest some way to catch the error????

PID:    1063
Thread: 0

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x00000020

Thread 0 Crashed:
0   libobjc.A.dylib       	0x90a554c0 objc_msgSend + 16
1   com.apple.AppKit      	0x9334d350 -[NSApplication sendEvent:] + 5023
2   com.apple.AppKit      	0x93277dfe -[NSApplication run] + 547
3   com.apple.AppKit      	0x9326bd2f NSApplicationMain + 573
4   com.likemac.DiskOrder 	0x000029ca _start + 216
5   com.likemac.DiskOrder 	0x000028f1 start + 41

Thread 1:
0   libSystem.B.dylib     	0x900268bc kevent + 12
1   com.apple.Foundation  	0x925f736c forkThreadForFunction + 123
2   libSystem.B.dylib     	0x90023d87 _pthread_body + 84

Thread 2:
0   libSystem.B.dylib     	0x90024427 semaphore_wait_signal_trap + 7
1   com.apple.Foundation  	0x9264d2f8 -[NSConditionLock lockWhenCondition:] + 39
2   com.apple.AppKit      	0x93355270 -[NSUIHeartBeat _heartBeatThread:] + 377
3   com.apple.Foundation  	0x925f736c forkThreadForFunction + 123
4   libSystem.B.dylib     	0x90023d87 _pthread_body + 84

Thread 0 crashed with X86 Thread State (32-bit):
  eax: 0x00000000    ebx: 0x93359f21 ecx: 0x90ab4afc edx: 0x00493550
  edi: 0x0046d804    esi: 0x00000008 ebp: 0xbffffa98 esp: 0xbffff978
   ss: 0x0000001f    efl: 0x00010206 eip: 0x90a554c0  cs: 0x00000017
   ds: 0x0000001f     es: 0x0000001f  fs: 0x00000000  gs: 0x00000037