I'm getting exception reports from users of an application I'm working on that I cannot reproduce. The exception comes from the NSSpellChecker instance, and the trace looks something like this:
NSObjectInaccessibleException NSDistantObject (0x600002279bc0) is invalid (no connection) 0x7fff91c61aee 0x7fff8a9fde75 0x7fff916dd10c 0x7fff92f6d6f9 0x7fff9163b0f4 0x7fff9163aea8 0x7fff89151a0c 0x7fff88cda673 0x7fff88cd8664 0x7fff92ef38a1 0x7fff92ef354b 0x7fff9030c28d 0x7fff9030e673 0x7fff9030f9c1 0x7fff9030df87 0x7fff9030f177 0x7fff8d984ef8 0x7fff8d987fb9 NSExceptionHandlerExceptionRaiser (in ExceptionHandling) + 172 objc_exception_throw (in libobjc.A.dylib) + 43 +[NSException raise:format:] (in CoreFoundation) + 204 -[NSDistantObject forwardInvocation:] (in Foundation) + 291 ___forwarding___ (in CoreFoundation) + 452 _CF_forwarding_prep_0 (in CoreFoundation) + 120 -[NSSpellChecker _checkSpellingAndGrammarInString:range:enclosingRange:offset:types:options:orthography:inSpellDocumentWithTag:mutableResults:wordCount:] (in AppKit) + 2071 NSSpellCheckerCheckString (in AppKit) + 8096 -[NSTextCheckingOperation main] (in AppKit) + 152 -[__NSOperationInternal _start:] (in Foundation) + 631 __NSOQSchedule_f (in Foundation) + 64 _dispatch_client_callout (in libdispatch.dylib) + 8 _dispatch_queue_drain (in libdispatch.dylib) + 451 _dispatch_queue_invoke (in libdispatch.dylib) + 110 _dispatch_root_queue_drain (in libdispatch.dylib) + 75 _dispatch_worker_thread2 (in libdispatch.dylib) + 40 _pthread_wqthread (in libsystem_pthread.dylib) + 314 start_wqthread (in libsystem_pthread.dylib) + 13 Most of the time it comes from the -[NSSpellChecker _checkSpellingAndGrammarInString:range:enclosingRange:offset:types:options:orthography:inSpellDocumentWithTag:mutableResults:wordCount:] method, but sometimes from -[NSSpellChecker setIgnoredWords:inSpellDocumentWithTag:]. Also, sometimes the exception is NSPortTimeoutException (connection timeout: did not receive reply), but still related to DOs. The thing is I don't use NSSpellChecker in the application at all. As expected, there are a lot of NSTextField and a few NSTextView instances, but NSSpellChecker is not used directly. Users say exceptions happen in different situations, but mostly when doing something that requires typing into a text field. I do use distributed objects though, to communicate with external helper tools which execute some certain tasks. Connection objects for that communication are created and destroyed as needed. I have created a startup item which runs a DTrace script and prints names and PIDs of processes making any kind of mach_port call, but that didn't give me any clue of why this is happening. I've also list's archive and I couldn't find anything related to this, but I hope someone might have a clue of what's really happening here. -- Dragan -- Dragan _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
