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Re: [NSInputContext currentInputContext] crash
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Re: [NSInputContext currentInputContext] crash

  • Subject: Re: [NSInputContext currentInputContext] crash
  • From: Aki Inoue <email@hidden>
  • Date: Tue, 14 Mar 2006 21:16:37 -0800
This happens when [[NSApp keyWindow] firstResponder] returns a deallocated object. Since NSWindow does not retain the first responder, it is possible it's deallocated prematurely if something's over-releasing it.

We also have received some reports on this issue but never been able to reproduce it reliably (it depends on the app, too).

Aki

Hi all, a couple of our users are having an intermittent crash with the following trace - does anyone know what may be causing this (and a fix)?

Exception:  EXC_BREAKPOINT (0x0006)
Code[0]:    0x00000001
Code[1]:    0x909c8cc0


Thread 0 Crashed:
0 libobjc.A.dylib 0x909c8cc0 _objc_trap + 0
1 libobjc.A.dylib 0x909c8c34 _objc_error + 76
2 libobjc.A.dylib 0x909c8bc4 __objc_error + 64
3 com.apple.AppKit 0x9366d134 +[NSInputContext currentInputContext] + 140
4 com.apple.AppKit 0x9366cf10 +[NSInputContext updateInputContexts] + 52
5 com.apple.AppKit 0x9366cd3c -[NSApplication updateWindows] + 120
6 com.apple.AppKit 0x9366cc68 _handleWindowsNeedUpdateNote + 72
7 com.apple.CoreFoundation 0x9075ccd8 __CFRunLoopDoObservers + 352
8 com.apple.CoreFoundation 0x9075cf78 __CFRunLoopRun + 420
9 com.apple.CoreFoundation 0x9075ca18 CFRunLoopRunSpecific + 268
10 com.apple.HIToolbox 0x9318f1e0 RunCurrentEventLoopInMode + 264
11 com.apple.HIToolbox 0x9318e7ec ReceiveNextEventCommon + 244
12 com.apple.HIToolbox 0x9318e6e0 BlockUntilNextEventMatchingListInMode + 96
13 com.apple.AppKit 0x9366c104 _DPSNextEvent + 384
14 com.apple.AppKit 0x9366bdc8 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 116
15 com.apple.AppKit 0x9366830c -[NSApplication run] + 472
16 com.apple.AppKit 0x93758e68 NSApplicationMain + 452
17 com.novamind.app.NovaMind 0x0000264c _start + 340 (crt.c: 272)
18 com.novamind.app.NovaMind 0x000024f4 start + 60


I did see the same question on the list in 2004, but no answers.


Thanks

Gideon King
email@hidden

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References: 


 >[NSInputContext currentInputContext] crash (From: Gideon King <email@hidden>)






    

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