I've got a strange problem: got a singleton which is initialized in applicationDidFinishLaunching of AppDelegate, but in some cases I receive crash reports with EXC_CRASH (SIGSEGV) and a stack trace like this:
0 com.name.myapp 0x000000010f723bae -[MySingleton .cxx_construct] (common_bootstrap.h:57)
1 libobjc.A.dylib 0x00007fff91339baa object_cxxConstructFromClass(objc_object*, objc_class*) + 151
2 libobjc.A.dylib 0x00007fff913367e4 object_cxxConstruct + 25
3 libobjc.A.dylib 0x00007fff91336795 _objc_constructOrFree + 21
4 libobjc.A.dylib 0x00007fff9134a49d +[NSObject allocWithZone:] + 16
5 com.name.myapp 0x000000010f722a11 __32+[MySingleton sharedInstance]_block_invoke (MySingleton.mm:124)
6 libdispatch.dylib 0x00007fff9377a2ad _dispatch_client_callout + 8
7 libdispatch.dylib 0x00007fff9377a21c dispatch_once_f + 79
8 com.name.myapp 0x000000010f7229f5 +[MySingleton sharedInstance] (once.h:68)
9 com.name.myapp 0x000000010f719480 -[AppDelegate applicationShouldTerminate:] (AppDelegate.m:673)
10 com.apple.AppKit 0x00007fff8d017471 -[NSApplication _docController:shouldTerminate:] + 69
11 com.apple.AppKit 0x00007fff8d017383 __91-[NSDocumentController(NSInternal) _closeAllDocumentsWithDelegate:shouldTerminateSelector:]_block_invoke + 152
12 com.apple.AppKit 0x00007fff8d017122 -[NSDocumentController(NSInternal) _closeAllDocumentsWithDelegate:shouldTerminateSelector:] + 1292
13 com.apple.AppKit 0x00007fff8d016bbf -[NSDocumentController(NSInternal) __closeAllDocumentsWithDelegate:shouldTerminateSelector:] + 265
14 com.apple.AppKit 0x00007fff8d01688c -[NSApplication _shouldTerminate] + 663
15 com.apple.AppKit 0x00007fff8d052a34 -[NSApplication(NSAppleEventHandling) _handleAEQuit] + 357
16 com.apple.AppKit 0x00007fff8ccb7213 -[NSApplication(NSAppleEventHandling) _handleCoreEvent:withReplyEvent:] + 282
17 com.apple.Foundation 0x00007fff92bf1eaa -[NSAppleEventManager dispatchRawAppleEvent:withRawReply:handlerRefCon:] + 294
18 com.apple.Foundation 0x00007fff92bf1d1d _NSAppleEventManagerGenericHandler + 106
19 com.apple.AE 0x00007fff8c139e1f aeDispatchAppleEvent(AEDesc const*, AEDesc*, unsigned int, unsigned char*) + 381
20 com.apple.AE 0x00007fff8c139c32 dispatchEventAndSendReply(AEDesc const*, AEDesc*) + 31
21 com.apple.AE 0x00007fff8c139b36 aeProcessAppleEvent + 315
22 com.apple.HIToolbox 0x00007fff8bced5f1 AEProcessAppleEvent + 56
23 com.apple.AppKit 0x00007fff8ccb30f6 _DPSNextEvent + 1026
24 com.apple.AppKit 0x00007fff8ccb28db -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 122
25 com.apple.AppKit 0x00007fff8cca69cc -[NSApplication run] + 553
26 com.apple.AppKit 0x00007fff8cc91803 NSApplicationMain + 940
27 com.name.myapp 0x000000010f716ec4 start + 52
So I see my singleton is trying to allocate and fails, so I suppose applicationDidFinishLaunching didn't ever been called.
Why can OS X try to terminate my app before it has been launched?
Related
So I was messing around with the Document Based Application, and I'm trying get the save file to work. I have a file format save to .lgre and whenever I hit save, I'll select location, and then nothing happens except that I get this in that console. Can someone tell me whats going wrong?
0 CoreFoundation 0x00007fff8c64b64c __exceptionPreprocess + 172
1 libobjc.A.dylib 0x00007fff8e9ca6de objc_exception_throw + 43
2 CoreFoundation 0x00007fff8c64b4fd +[NSException raise:format:] + 205
3 Ligre UI 0x00000001000011b1 -[Document dataOfType:error:] + 129
4 AppKit 0x00007fff933d8fcf -[NSDocument writeToURL:ofType:error:] + 861
5 AppKit 0x00007fff933dbf03 -[NSDocument writeToURL:ofType:forSaveOperation:originalContentsURL:error:] + 494
6 AppKit 0x00007fff933dae6b -[NSDocument _writeSafelyToURL:ofType:forSaveOperation:forceTemporaryDirectory:error:] + 850
7 AppKit 0x00007fff933dbb93 -[NSDocument _writeSafelyToURL:ofType:forSaveOperation:error:] + 28
8 AppKit 0x00007fff933dbd01 -[NSDocument writeSafelyToURL:ofType:forSaveOperation:error:] + 357
9 AppKit 0x00007fff933e8fc5 __66-[NSDocument saveToURL:ofType:forSaveOperation:completionHandler:]_block_invoke_22307 + 240
10 AppKit 0x00007fff933e8ec6 __66-[NSDocument saveToURL:ofType:forSaveOperation:completionHandler:]_block_invoke2304 + 365
11 AppKit 0x00007fff933e72e6 __66-[NSDocument saveToURL:ofType:forSaveOperation:completionHandler:]_block_invoke2176 + 1587
12 AppKit 0x00007fff93426882 __62-[NSDocumentController(NSInternal) _onMainThreadInvokeWorker:]_block_invoke1881 + 175
13 CoreFoundation 0x00007fff8c56954c __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12
14 CoreFoundation 0x00007fff8c55b655 __CFRunLoopDoBlocks + 341
15 CoreFoundation 0x00007fff8c55b196 __CFRunLoopRun + 1814
16 CoreFoundation 0x00007fff8c55a838 CFRunLoopRunSpecific + 296
17 HIToolbox 0x00007fff9421243f RunCurrentEventLoopInMode + 235
18 HIToolbox 0x00007fff942121ba ReceiveNextEventCommon + 431
19 HIToolbox 0x00007fff94211ffb _BlockUntilNextEventMatchingListInModeWithFilter + 71
20 AppKit 0x00007fff92fbe6d1 _DPSNextEvent + 964
21 AppKit 0x00007fff92fbde80 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 194
22 AppKit 0x00007fff92fb1e23 -[NSApplication run] + 594
23 AppKit 0x00007fff92f9d2d4 NSApplicationMain + 1832
24 Ligre UI 0x0000000100001302 main + 34
25 libdyld.dylib 0x00007fff8cea45c9 start + 1
26 ??? 0x0000000000000003 0x0 + 3
)
Did you override dataOfType or one of the writeToURL methods?
See the discussion here: https://developer.apple.com/library/mac/documentation/Cocoa/Reference/ApplicationKit/Classes/NSDocument_Class/index.html#//apple_ref/occ/instm/NSDocument/dataOfType:error:
After upgrading to Yosemite, I'm getting a very weird crash when I run a NSSavePanel in my app. For example, I select openDocument: and it crashes. Or I open the panel to browse files and it crashes.
An uncaught exception was raised
2014-10-24 09:51:28.429 MyApp[2240:374020] *** -[__NSArrayI objectAtIndex:]: index 0 beyond bounds for empty array
2014-10-24 09:51:28.431 MyApp[2240:374020] (
0 CoreFoundation 0x97c59343 __raiseError + 195
1 libobjc.A.dylib 0x973bea2a objc_exception_throw + 276
2 CoreFoundation 0x97b1cf8c -[__NSArrayI objectAtIndex:] + 204
3 MyApp 0x0013c830 -[NSArray(CocoaDevUsersAdditions) firstObject] + 41
4 AppKit 0x94567f16 _NSAccessibilityEntryPointValueForAttribute + 2116
5 AppKit 0x9456829e NSAccessibilityEntryPointValueForAttribute + 24
6 AppKit 0x9435ff4c ValueOfAttributeWithDefault + 80
7 AppKit 0x94090fa2 NSAccessibilityChildren + 47
8 AppKit 0x94090f48 NSAccessibilityUnignoredChildrenForOnlyChild + 99
9 AppKit 0x94090e50 NSAccessibilityUnignoredDescendant + 42
10 AppKit 0x94213a51 -[NSNibAXRelationshipConnector establishConnection] + 130
11 AppKit 0x9453e342 -[NSIBObjectData nibInstantiateWithOwner:options:topLevelObjects:] + 1061
12 AppKit 0x93ffaad7 -[NSIBObjectData nibInstantiateWithOwner:topLevelObjects:] + 56
13 AppKit 0x945debdd -[NSNib _instantiateNibWithExternalNameTable:options:] + 735
14 AppKit 0x941a3f77 -[NSNib instantiateNibWithOwner:topLevelObjects:] + 277
15 AppKit 0x94651cee -[NSSavePanel(NSSavePanelLayout) _initContentView] + 189
16 AppKit 0x9463d317 -[NSSavePanel initWithContentRect:styleMask:backing:defer:] + 645
17 AppKit 0x9463c6db +[NSSavePanel _crunchyRawUnbonedPanel] + 216
18 AppKit 0x945e978a +[NSOpenPanel openPanel] + 33
19 AppKit 0x944b66fb -[NSDocumentController _setupOpenPanel] + 42
20 AppKit 0x944b6b62 -[NSDocumentController beginOpenPanelWithCompletionHandler:] + 96
21 AppKit 0x944b6630 -[NSDocumentController openDocument:] + 413
22 libobjc.A.dylib 0x973bc853 -[NSObject performSelector:withObject:] + 70
23 AppKit 0x94380328 __36-[NSApplication sendAction:to:from:]_block_invoke + 51
24 libsystem_trace.dylib 0x9096dc03 _os_activity_initiate + 89
25 AppKit 0x941f3a11 -[NSApplication sendAction:to:from:] + 548
26 AppKit 0x9420f9ed -[NSMenuItem _corePerformAction] + 479
27 AppKit 0x9420f6c9 -[NSCarbonMenuImpl performActionWithHighlightingForItemAtIndex:] + 162
28 AppKit 0x9420ed54 -[NSMenu _performActionWithHighlightingForItemAtIndex:sendAccessibilityNotification:] + 79
29 AppKit 0x94585872 __38-[NSMenu performActionForItemAtIndex:]_block_invoke + 52
30 libsystem_trace.dylib 0x9096dc03 _os_activity_initiate + 89
31 AppKit 0x94260736 -[NSMenu performActionForItemAtIndex:] + 141
32 AppKit 0x9426069e -[NSMenu _internalPerformActionForItemAtIndex:] + 45
33 AppKit 0x94260669 -[NSMenuItem _internalPerformActionThroughMenuIfPossible] + 106
34 AppKit 0x942604c1 -[NSCarbonMenuImpl _carbonCommandProcessEvent:handlerCallRef:] + 120
35 AppKit 0x94204487 NSSLMMenuEventHandler + 679
36 HIToolbox 0x905a45d4 _Z22_InvokeEventHandlerUPPP25OpaqueEventHandlerCallRefP14OpaqueEventRefPvPFlS0_S2_S3_E + 36
37 HIToolbox 0x903ee501 _ZL23DispatchEventToHandlersP14EventTargetRecP14OpaqueEventRefP14HandlerCallRec + 2291
38 HIToolbox 0x903ed4dc _ZL30SendEventToEventTargetInternalP14OpaqueEventRefP20OpaqueEventTargetRefP14HandlerCallRec + 402
39 HIToolbox 0x90400d25 SendEventToEventTarget + 88
40 HIToolbox 0x905a4452 _ZL18SendHICommandEventmPK9HICommandmmhPKvP20OpaqueEventTargetRefS5_PP14OpaqueEventRef + 447
41 HIToolbox 0x904650cc SendMenuCommandWithContextAndModifiers + 72
42 HIToolbox 0x90465074 SendMenuItemSelectedEvent + 207
43 HIToolbox 0x90464f38 _ZL19FinishMenuSelectionP13SelectionDataP10MenuResultS2_ + 145
44 HIToolbox 0x905fb902 _ZL14MenuSelectCoreP8MenuData5PointdmPP13OpaqueMenuRefPt + 775
45 HIToolbox 0x9046c266 _HandleMenuSelection2 + 512
46 HIToolbox 0x9046c050 _HandleMenuSelection + 55
47 AppKit 0x94182f3b _NSHandleCarbonMenuEvent + 359
48 AppKit 0x9400e321 _DPSNextEvent + 1702
49 AppKit 0x9400d7a1 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 186
50 AppKit 0x93ffff6c -[NSApplication run] + 907
51 AppKit 0x93fe94d0 NSApplicationMain + 2082
52 MyApp 0x00003215 start + 53
This is a bug with the extension class you are using. NSArray+CocoaDevUsersAdditions firstObject method is implemented wrong. The relevant parts of the crash log you posted are these three lines:
1 libobjc.A.dylib 0x973bea2a objc_exception_throw + 276
2 CoreFoundation 0x97b1cf8c -[__NSArrayI objectAtIndex:] + 204
3 MyApp 0x0013c830 -[NSArray(CocoaDevUsersAdditions) firstObject] + 41
The index 0 beyond bounds for empty array error happens when you try to access the index 0 of an array that contains no objects.
I found some code that I think matches the NSArray+CocoaDevUsersAdditions class at this URL
-(id)firstObject
{
return [self objectAtIndex:0];
}
The above code is wrong. It should check the count of objects first. Correct code should look like this:
-(id)firstObject
{
id result = nil;
if (self.count > 0) {
result = [self objectAtIndex:0];
}
return result;
}
So the problem is the NSArray extension you are using is implemented wrong.
Best solution: Remove your NSArray+CocoaDevUsersAdditions category and use the public firstObject method on NSArray
I am looking for some assistance with squashing a bug in an OSX app that i just can't work out. I am getting a logged error of:
Selector name found in current argument registers: isEqual:
But i can't for the life of me work out where it's coming from as the log is very unhelpful. Also i can't reproduce this on my own test systems, but it seems to be happening quite a lot on some of the beta testers machines. This only seems to happen on 10.9.
Here is the log file for the crash:
Incident Identifier: 77FAD32D-0316-489E-B898-9C084A4FF48A
CrashReporter Key: A9FEF4E7-53F7-5FD1-AEDE-915C87BD437F
Hardware Model: MacBookPro8,1
Process: iModerate Deskto [4155]
Path: /Users/USER/Desktop/iModerate Desktop.app/Contents/MacOS/iModerate Desktop
Identifier: com.fuzzybadger.iModerate-Desktop
Version: 1.1.549
Code Type: X86-64
Parent Process: launchd [159]
Date/Time: 2014-02-28 10:40:33 +0000
OS Version: Mac OS X 10.9.0 (13A603)
Report Version: 104
Exception Type: SIGSEGV
Exception Codes: SEGV_NOOP at 0x0
Crashed Thread: 10
Application Specific Information:
Selector name found in current argument registers: isEqual:
Thread 0:
0 libsystem_kernel.dylib 0x00007fff852b1716 __psynch_cvwait + 10
1 QuartzCore 0x00007fff8769cce7 _ZN2CA13DispatchGroupD2Ev + 53
2 QuartzCore 0x00007fff8768916e _ZN2CA5Layer17display_if_neededEPNS_11TransactionE + 538
3 QuartzCore 0x00007fff876888f1 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 35
4 QuartzCore 0x00007fff8768837c _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 236
5 QuartzCore 0x00007fff87688016 _ZN2CA11Transaction6commitEv + 388
6 QuartzCore 0x00007fff876987a1 _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 71
7 CoreFoundation 0x00007fff8998d0a7 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
8 CoreFoundation 0x00007fff8998d017 __CFRunLoopDoObservers + 391
9 CoreFoundation 0x00007fff8997e294 CFRunLoopRunSpecific + 340
10 HIToolbox 0x00007fff8fbd1f0d RunCurrentEventLoopInMode + 226
11 HIToolbox 0x00007fff8fbd1b85 ReceiveNextEventCommon + 173
12 HIToolbox 0x00007fff8fbd1abc _BlockUntilNextEventMatchingListInModeWithFilter + 65
13 AppKit 0x00007fff8ce6828e _DPSNextEvent + 1434
14 AppKit 0x00007fff8ce678db -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 122
15 AppKit 0x00007fff8ce5b9cc -[NSApplication run] + 553
16 AppKit 0x00007fff8ce46803 NSApplicationMain + 940
17 libdyld.dylib 0x00007fff8ce435fd start + 1
Thread 1:
0 libsystem_kernel.dylib 0x00007fff852b2662 kevent64 + 10
1 libdispatch.dylib 0x00007fff91e9f152 _dispatch_mgr_init + 0
Thread 2:
0 libsystem_kernel.dylib 0x00007fff852ada1a mach_msg_trap + 10
1 CoreFoundation 0x00007fff8997f315 __CFRunLoopServiceMachPort + 181
2 CoreFoundation 0x00007fff8997e939 __CFRunLoopRun + 1161
3 CoreFoundation 0x00007fff8997e275 CFRunLoopRunSpecific + 309
4 Foundation 0x00007fff90e47907 +[NSURLConnection(Loader) _resourceLoadLoop:] + 348
5 Foundation 0x00007fff90e4770b __NSThread__main__ + 1318
6 libsystem_pthread.dylib 0x00007fff905e8899 _pthread_body + 138
7 libsystem_pthread.dylib 0x00007fff905e872a _pthread_struct_init + 0
Thread 3:
0 libsystem_kernel.dylib 0x00007fff852ada1a mach_msg_trap + 10
1 CoreFoundation 0x00007fff8997f315 __CFRunLoopServiceMachPort + 181
2 CoreFoundation 0x00007fff8997e939 __CFRunLoopRun + 1161
3 CoreFoundation 0x00007fff8997e275 CFRunLoopRunSpecific + 309
4 AppKit 0x00007fff8d0081ce _NSEventThread + 144
5 libsystem_pthread.dylib 0x00007fff905e8899 _pthread_body + 138
6 libsystem_pthread.dylib 0x00007fff905e872a _pthread_struct_init + 0
Thread 4:
0 libsystem_kernel.dylib 0x00007fff852ada1a mach_msg_trap + 10
1 CoreFoundation 0x00007fff8997f315 __CFRunLoopServiceMachPort + 181
2 CoreFoundation 0x00007fff8997e939 __CFRunLoopRun + 1161
3 CoreFoundation 0x00007fff8997e275 CFRunLoopRunSpecific + 309
4 Foundation 0x00007fff90e49a7c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 253
5 Simperium-OSX 0x000000010cb6b838 -[_SRRunLoopThread main] (SRWebSocket.m:1744)
6 Foundation 0x00007fff90e4770b __NSThread__main__ + 1318
7 libsystem_pthread.dylib 0x00007fff905e8899 _pthread_body + 138
8 libsystem_pthread.dylib 0x00007fff905e872a _pthread_struct_init + 0
Thread 5:
0 libsystem_kernel.dylib 0x00007fff852b19aa __select + 10
1 libsystem_pthread.dylib 0x00007fff905e8899 _pthread_body + 138
2 libsystem_pthread.dylib 0x00007fff905e872a _pthread_struct_init + 0
Thread 6:
0 libsystem_kernel.dylib 0x00007fff852b1e6a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff905ecfb9 start_wqthread + 13
Thread 7:
0 libsystem_kernel.dylib 0x00007fff852b1e6a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff905ecfb9 start_wqthread + 13
Thread 8:
0 libsystem_platform.dylib 0x00007fff8bde7cd1 OSAtomicDequeue + 17
1 libsystem_malloc.dylib 0x00007fff8f4b16c4 nano_malloc + 35
2 libsystem_malloc.dylib 0x00007fff8f4af87c malloc_zone_malloc + 71
3 CoreFoundation 0x00007fff899118df __CFBasicHashRehash + 287
4 CoreFoundation 0x00007fff89917566 __CFBasicHashAddValue + 86
5 CoreFoundation 0x00007fff89916609 CFDictionarySetValue + 217
6 libCGCMS.A.dylib 0x00007fff8b857fb8 CreateProfileSet + 104
7 libCGCMS.A.dylib 0x00007fff8b857e61 profileRef + 189
8 libCGCMS.A.dylib 0x00007fff8b858b79 create + 1205
9 libCGCMS.A.dylib 0x00007fff8b859454 get_cms_space_for_space + 140
10 libCGCMS.A.dylib 0x00007fff8b8592ca get_color_world_for_space + 166
11 libCGCMS.A.dylib 0x00007fff8b8591f0 CMSTransformCreateConverter + 63
12 CoreGraphics 0x00007fff86681ba1 CGColorTransformCacheGetConversionType + 145
13 CoreGraphics 0x00007fff86681aeb CGColorTransformConvertNeedsCMS + 113
14 CoreGraphics 0x00007fff8667f8e9 img_data_lock + 1217
15 CoreGraphics 0x00007fff8667e480 CGSImageDataLock + 149
16 libRIP.A.dylib 0x00007fff86548b3c ripc_AcquireImage + 769
17 libRIP.A.dylib 0x00007fff86547b85 ripc_DrawImage + 1025
18 CoreGraphics 0x00007fff8667e023 CGContextDrawImage + 457
19 AppKit 0x00007fff8cfd8c02 __74-[NSImageRep drawInRect:fromRect:operation:fraction:respectFlipped:hints:]_block_invoke + 835
20 AppKit 0x00007fff8cfd86a8 -[NSImageRep drawInRect:fromRect:operation:fraction:respectFlipped:hints:] + 1073
21 AppKit 0x00007fff8cfd7fee __71-[NSImage drawInRect:fromRect:operation:fraction:respectFlipped:hints:]_block_invoke + 896
22 AppKit 0x00007fff8cf63626 -[NSImage _usingBestRepresentationForRect:context:hints:body:] + 170
23 AppKit 0x00007fff8cfd7b6c -[NSImage drawInRect:fromRect:operation:fraction:respectFlipped:hints:] + 1447
24 AppKit 0x00007fff8cfd7153 -[NSImage _drawMappingAlignmentRectToRect:withState:backgroundStyle:operation:fraction:flip:hints:] + 1453
25 AppKit 0x00007fff8d01fa21 -[NSImageCell _drawImageWithFrame:inView:] + 225
26 AppKit 0x00007fff8d01f8e5 -[NSImageCell drawInteriorWithFrame:inView:] + 625
27 AppKit 0x00007fff8cfd4728 -[NSControl drawRect:] + 341
28 AppKit 0x00007fff8cfc98b0 -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inGraphicsContext:CGContext:topView:shouldChangeFontReferenceColor:] + 1075
29 AppKit 0x00007fff8cfc9bb0 -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inGraphicsContext:CGContext:topView:shouldChangeFontReferenceColor:] + 1843
30 AppKit 0x00007fff8cfc9bb0 -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inGraphicsContext:CGContext:topView:shouldChangeFontReferenceColor:] + 1843
31 AppKit 0x00007fff8cfc9bb0 -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inGraphicsContext:CGContext:topView:shouldChangeFontReferenceColor:] + 1843
32 AppKit 0x00007fff8cfc936d __46-[NSView(NSLayerKitGlue) drawLayer:inContext:]_block_invoke + 186
33 AppKit 0x00007fff8cfc9153 -[NSView(NSLayerKitGlue) _drawViewBackingLayer:inContext:drawingHandler:] + 2297
34 AppKit 0x00007fff8cfc8848 -[NSView(NSLayerKitGlue) drawLayer:inContext:] + 108
35 QuartzCore 0x00007fff8768a852 CABackingStoreUpdate_ + 2220
36 QuartzCore 0x00007fff87689fa0 ___ZN2CA5Layer8display_Ev_block_invoke + 59
37 QuartzCore 0x00007fff87689f5c x_blame_allocations + 84
38 QuartzCore 0x00007fff87689a6b _ZN2CA5Layer8display_Ev + 1539
39 AppKit 0x00007fff8cfc8713 _NSBackingLayerDisplay + 235
40 AppKit 0x00007fff8cf9faab -[_NSViewBackingLayer display] + 811
41 QuartzCore 0x00007fff8769ce1a _ZL16display_callbackPvS_ + 81
42 QuartzCore 0x00007fff8769cd69 _ZN2CA13DispatchGroup8dispatchEb + 69
43 libdispatch.dylib 0x00007fff91e9d2ad _dispatch_client_callout + 8
44 libdispatch.dylib 0x00007fff91e9f09e _dispatch_root_queue_drain + 326
45 libdispatch.dylib 0x00007fff91ea0193 _dispatch_worker_thread2 + 40
46 libsystem_pthread.dylib 0x00007fff905e9ef8 _pthread_wqthread + 314
47 libsystem_pthread.dylib 0x00007fff905ecfb9 start_wqthread + 13
Thread 9:
0 libsystem_kernel.dylib 0x00007fff852b1e6a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff905ecfb9 start_wqthread + 13
Thread 10 Crashed:
0 libobjc.A.dylib 0x00007fff87f0e097 objc_msgSend + 23
1 CoreFoundation 0x00007fff899573d9 -[__NSDictionaryM setObject:forKey:] + 505
2 AppKit 0x00007fff8ceb032b -[NSCell _textAttributes] + 531
3 AppKit 0x00007fff8ceb00e2 -[NSCell _unformattedAttributedStringValue:] + 301
4 AppKit 0x00007fff8cfead57 -[NSButtonCell _currentTitle] + 122
5 AppKit 0x00007fff8cfea3fb -[NSButtonCell _configureAndDrawTitleWithRect:cellFrame:controlView:] + 148
6 AppKit 0x00007fff8cfd62cf -[NSButtonCell drawInteriorWithFrame:inView:] + 1965
7 AppKit 0x00007fff8cfd5ac8 -[NSButtonCell drawWithFrame:inView:] + 498
8 AppKit 0x00007fff8cfd4728 -[NSControl drawRect:] + 341
9 AppKit 0x00007fff8cfc98b0 -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inGraphicsContext:CGContext:topView:shouldChangeFontReferenceColor:] + 1075
10 AppKit 0x00007fff8cfc9bb0 -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inGraphicsContext:CGContext:topView:shouldChangeFontReferenceColor:] + 1843
11 AppKit 0x00007fff8cfc9bb0 -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inGraphicsContext:CGContext:topView:shouldChangeFontReferenceColor:] + 1843
12 AppKit 0x00007fff8cfc9bb0 -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inGraphicsContext:CGContext:topView:shouldChangeFontReferenceColor:] + 1843
13 AppKit 0x00007fff8cfc936d __46-[NSView(NSLayerKitGlue) drawLayer:inContext:]_block_invoke + 186
14 AppKit 0x00007fff8cfc9153 -[NSView(NSLayerKitGlue) _drawViewBackingLayer:inContext:drawingHandler:] + 2297
15 AppKit 0x00007fff8cfc8848 -[NSView(NSLayerKitGlue) drawLayer:inContext:] + 108
16 AppKit 0x00007fff8d01e57c -[_NSBackingLayerContents drawLayer:inContext:] + 149
17 QuartzCore 0x00007fff8768bcc9 -[CALayer drawInContext:] + 115
18 AppKit 0x00007fff8d01e0b8 -[_NSTiledLayer drawTile:inContext:] + 654
19 AppKit 0x00007fff8d01ddbc -[_NSTiledLayerContents drawLayer:inContext:] + 172
20 QuartzCore 0x00007fff8768bcc9 -[CALayer drawInContext:] + 115
21 AppKit 0x00007fff8d7f2565 -[NSTileLayer drawInContext:] + 169
22 QuartzCore 0x00007fff8768a852 CABackingStoreUpdate_ + 2220
23 QuartzCore 0x00007fff87689fa0 ___ZN2CA5Layer8display_Ev_block_invoke + 59
24 QuartzCore 0x00007fff87689f5c x_blame_allocations + 84
25 QuartzCore 0x00007fff87689a6b _ZN2CA5Layer8display_Ev + 1539
26 AppKit 0x00007fff8d01dccf -[NSTileLayer display] + 119
27 AppKit 0x00007fff8d01a175 -[_NSTiledLayerContents update:] + 5545
28 AppKit 0x00007fff8d0188e8 -[_NSTiledLayer display] + 404
29 QuartzCore 0x00007fff8769ce1a _ZL16display_callbackPvS_ + 81
30 QuartzCore 0x00007fff8769cd69 _ZN2CA13DispatchGroup8dispatchEb + 69
31 libdispatch.dylib 0x00007fff91e9d2ad _dispatch_client_callout + 8
32 libdispatch.dylib 0x00007fff91e9f09e _dispatch_root_queue_drain + 326
33 libdispatch.dylib 0x00007fff91ea0193 _dispatch_worker_thread2 + 40
34 libsystem_pthread.dylib 0x00007fff905e9ef8 _pthread_wqthread + 314
35 libsystem_pthread.dylib 0x00007fff905ecfb9 start_wqthread + 13
Thread 11:
0 libsystem_kernel.dylib 0x00007fff852b1e6a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff905ecfb9 start_wqthread + 13
Thread 12:
0 libsystem_kernel.dylib 0x00007fff852b1e6a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff905ecfb9 start_wqthread + 13
Thread 13:
0 libsystem_kernel.dylib 0x00007fff852b1e6a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff905ecfb9 start_wqthread + 13
Thread 10 crashed with X86-64 Thread State:
rip: 0x00007fff87f0e097 rbp: 0x000000011ab59d20 rsp: 0x000000011ab59cb8 rax: 0x00007fff76b7c648
rbx: 0x0000000000000001 rcx: 0x0000000000000000 rdx: 0x00007fff76b7c648 rdi: 0x00006080006321a0
rsi: 0x00007fff8d89320c r8: 0x00007fff8d85082b r9: 0x0000000000000032 r10: 0x00007fff8d89320c
r11: 0xbadd0dacedb8bead r12: 0x0000608000232d00 r13: 0x0000000000000002 r14: 0x0000000000000003
r15: 0x0000000000000003 rflags: 0x0000000000010246 cs: 0x000000000000002b fs: 0x0000000000000000
gs: 0x000000000e5d0000
The string Selector name found in current argument registers: isEqual: in the crash report is actually coming from HockeySDK and shows the last selector name objc_msgSend() was trying to call. It is identical to OS X showing the following string in their crash reports: objc_msgSend() selector name: isEqual:.
We'll improve this message in our SDK and also see what we can do in the backend for current incoming messages.
So the crash is not caused by HockeySDK!
The reason for the crash is, that objc_msgSend (thread 10 frame 0) was trying to call isEqual on an invalid object, hence the exception type SIGSEGV (See http://en.wikipedia.org/wiki/Segmentation_fault ). This was triggered by [NSButtonCell _currentTitle] in frame 4.
So you might want to check your table views and cells memory management. Especially when you assign a title to an NSButtonCell.
I've been trying to find out what's wrong with this piece of code: I have an NSTextView which string I want to update when the user clicks in one one my table views. For now on, I'm just trying to get it to display the string "Notes".
Any idea on what I am doing wrong ? I looked into beginEditing: and endEditing: without any success.
//
// MyAppDelegate.h
#property IBOutlet NSTextView* stickyNoteContainer;
//
// MyAppDelegate.m
-(void)updateOverview{
[stickyNoteContainer setString:#"Notes"];
}
Here's the stack :
MyApp[1176:303] *** -[NSBigMutableString _getBlockStart:end:contentsEnd:forRange:stopAtLineSeparators:]: Range or index out of bounds
2013-09-23 15:04:12.084 MyApp[1176:303] (
0 CoreFoundation 0x00007fff917eaf56 __exceptionPreprocess + 198
1 libobjc.A.dylib 0x00007fff95bb7d5e objc_exception_throw + 43
2 CoreFoundation 0x00007fff917ead8a +[NSException raise:format:arguments:] + 106
3 CoreFoundation 0x00007fff917ead14 +[NSException raise:format:] + 116
4 Foundation 0x00007fff955afbc5 -[NSString _getBlockStart:end:contentsEnd:forRange:stopAtLineSeparators:] + 160
5 Foundation 0x00007fff955afb1e -[NSString getParagraphStart:end:contentsEnd:forRange:] + 40
6 AppKit 0x00007fff8e5c1cd7 _NSFastFillAllLayoutHolesForGlyphRange + 1040
7 AppKit 0x00007fff8eb31bb4 -[NSTextView(NSPrivate) _ensureLayoutCompleteForVisibleRectWithExtensionFactor:minimumExtensionDistance:repetitions:] + 563
8 AppKit 0x00007fff8eb2d13c -[NSTextView(NSPrivate) _ensureLayoutCompleteForVisibleRectWithExtension:] + 45
9 AppKit 0x00007fff8e6b9650 -[NSTextView setNeedsDisplayInRect:avoidAdditionalLayout:] + 2078
10 AppKit 0x00007fff8e6bf1c1 -[NSLayoutManager(NSPrivate) _resizeTextViewForTextContainer:] + 5690
11 AppKit 0x00007fff8e5b0110 -[NSLayoutManager(NSPrivate) _recalculateUsageForTextContainerAtIndex:] + 2678
12 AppKit 0x00007fff8e96b948 _enableTextViewResizing + 209
13 AppKit 0x00007fff8e5a8454 -[NSLayoutManager textStorage:edited:range:changeInLength:invalidatedRange:] + 582
14 AppKit 0x00007fff8e5a81f6 -[NSTextStorage _notifyEdited:range:changeInLength:invalidatedRange:] + 155
15 AppKit 0x00007fff8e681133 -[NSTextStorage processEditing] + 205
16 AppKit 0x00007fff8e681cab -[NSTextStorage endEditing] + 81
17 MyApp 0x0000000100007938 -[MyAppDelegate updateOverview] + 1624
18 MyApp 0x0000000100008751 -[MyAppDelegate tableViewSelectionDidChange:] + 177
19 Foundation 0x00007fff95550d0e __-[NSNotificationCenter addObserver:selector:name:object:]_block_invoke_1 + 47
20 CoreFoundation 0x00007fff917937ba _CFXNotificationPost + 2634
21 Foundation 0x00007fff9553cfc3 -[NSNotificationCenter postNotificationName:object:userInfo:] + 65
22 AppKit 0x00007fff8e674049 -[NSTableView _sendSelectionChangedNotificationForRows:columns:] + 203
23 AppKit 0x00007fff8e64ab0a -[NSTableView _enableSelectionPostingAndPost] + 425
24 AppKit 0x00007fff8e670e58 -[NSTableView mouseDown:] + 5030
25 AppKit 0x00007fff8e5d6c98 -[NSWindow sendEvent:] + 6306
26 AppKit 0x00007fff8e5703a5 -[NSApplication sendEvent:] + 5593
27 AppKit 0x00007fff8e506a0e -[NSApplication run] + 555
28 AppKit 0x00007fff8e782eac NSApplicationMain + 867
29 MyApp 0x0000000100002002 main + 34
30 MyApp 0x0000000100001fd4 start + 52
)
EDIT : I realized the piece of code actually runs twice without any exception at the end of the program initialization, during my - (void)applicationDidFinishLaunching: routine. After that, any triggering will be faulty. What does this suggest ?
EDIT 2 : Put aside the fact using insertText: appends instead of replacing, I get a very similar exception when trying :
MyApp[1919:303] *** -[NSBigMutableString _getBlockStart:end:contentsEnd:forRange:stopAtLineSeparators:]: Range or index out of bounds
2013-09-23 15:34:03.956 MyApp[1919:303] (
0 CoreFoundation 0x00007fff917eaf56 __exceptionPreprocess + 198
1 libobjc.A.dylib 0x00007fff95bb7d5e objc_exception_throw + 43
2 CoreFoundation 0x00007fff917ead8a +[NSException raise:format:arguments:] + 106
3 CoreFoundation 0x00007fff917ead14 +[NSException raise:format:] + 116
4 Foundation 0x00007fff955afbc5 -[NSString _getBlockStart:end:contentsEnd:forRange:stopAtLineSeparators:] + 160
5 Foundation 0x00007fff955afb1e -[NSString getParagraphStart:end:contentsEnd:forRange:] + 40
6 AppKit 0x00007fff8e5c1cd7 _NSFastFillAllLayoutHolesForGlyphRange + 1040
7 AppKit 0x00007fff8eb31bb4 -[NSTextView(NSPrivate) _ensureLayoutCompleteForVisibleRectWithExtensionFactor:minimumExtensionDistance:repetitions:] + 563
8 AppKit 0x00007fff8eb2d13c -[NSTextView(NSPrivate) _ensureLayoutCompleteForVisibleRectWithExtension:] + 45
9 AppKit 0x00007fff8e6b9650 -[NSTextView setNeedsDisplayInRect:avoidAdditionalLayout:] + 2078
10 AppKit 0x00007fff8e6bf1c1 -[NSLayoutManager(NSPrivate) _resizeTextViewForTextContainer:] + 5690
11 AppKit 0x00007fff8e5b0110 -[NSLayoutManager(NSPrivate) _recalculateUsageForTextContainerAtIndex:] + 2678
12 AppKit 0x00007fff8e96b948 _enableTextViewResizing + 209
13 AppKit 0x00007fff8e5a8454 -[NSLayoutManager textStorage:edited:range:changeInLength:invalidatedRange:] + 582
14 AppKit 0x00007fff8e5a81f6 -[NSTextStorage _notifyEdited:range:changeInLength:invalidatedRange:] + 155
15 AppKit 0x00007fff8e681133 -[NSTextStorage processEditing] + 205
16 AppKit 0x00007fff8e681cab -[NSTextStorage endEditing] + 81
17 AppKit 0x00007fff8eb0620f -[NSTextView insertText:replacementRange:] + 2013
18 AppKit 0x00007fff8eb05a25 -[NSTextView insertText:] + 320
19 MyApp 0x00000001000078c1 -[MyAppDelegate updateOverview] + 1569
20 MyApp 0x0000000100008751 -[MyAppDelegate tableViewSelectionDidChange:] + 177
21 Foundation 0x00007fff95550d0e __-[NSNotificationCenter addObserver:selector:name:object:]_block_invoke_1 + 47
22 CoreFoundation 0x00007fff917937ba _CFXNotificationPost + 2634
23 Foundation 0x00007fff9553cfc3 -[NSNotificationCenter postNotificationName:object:userInfo:] + 65
24 AppKit 0x00007fff8e674049 -[NSTableView _sendSelectionChangedNotificationForRows:columns:] + 203
25 AppKit 0x00007fff8e64ab0a -[NSTableView _enableSelectionPostingAndPost] + 425
26 AppKit 0x00007fff8e670e58 -[NSTableView mouseDown:] + 5030
27 AppKit 0x00007fff8e5d6c98 -[NSWindow sendEvent:] + 6306
28 AppKit 0x00007fff8e5703a5 -[NSApplication sendEvent:] + 5593
29 AppKit 0x00007fff8e506a0e -[NSApplication run] + 555
30 AppKit 0x00007fff8e782eac NSApplicationMain + 867
31 MyApp 0x0000000100001fc2 main + 34
32 MyApp 0x0000000100001f94 start + 52
)
It turned out I was modifying the stringValue of a NSTextView while it was calling textDidEndEditing:, which resulted in a mismatched string count and a Range or index out of bounds exception thrown when this wrong count was being used inside NSTextView inner methods.
I just bypassed the problem by using an ivar #property BOOL canModifyTextViewString which would be set accordingly inside methods where modifying the string is unsafe/not possible.
NSTextView doesn't have setString as a class method
-(void)updateOverview{
[stickyNoteContainer insertText:#"Notes"];
}
https://developer.apple.com/library/mac/documentation/Cocoa/Reference/ApplicationKit/Classes/NSTextView_Class/Reference/Reference.html#//apple_ref/occ/instm/NSTextView/insertText:
I notice that in my app's crash log on OS X that one of the first sections is "Application Specific Backtrace". It shows something like this:
Application Specific Backtrace 1:
0 CoreFoundation 0x00007fff8acef716 __exceptionPreprocess + 198
1 libobjc.A.dylib 0x00007fff8d723470 objc_exception_throw + 43
2 CoreFoundation 0x00007fff8ad7df07 -[__NSDictionaryM setObject:forKey:] + 135
3 My App 0x00000001030c6f72 My App + 81778
4 My App 0x00000001030c7969 My App + 84329
5 AppKit 0x00007fff8c3d5afa -[NSIBObjectData nibInstantiateWithOwner:topLevelObjects:] + 1012
6 AppKit 0x00007fff8c5ec1d6 -[NSNib _instantiateNibWithExternalNameTable:] + 610
7 AppKit 0x00007fff8c5ebf43 -[NSNib instantiateNibWithOwner:topLevelObjects:] + 254
8 AppKit 0x00007fff8c5eb4f7 -[NSViewController loadView] + 184
9 AppKit 0x00007fff8c593349 -[NSViewController view] + 41
10 My App 0x00000001030cae69 My App + 97897
11 My App 0x00000001030cbb3a My App + 101178
12 AppKit 0x00007fff8c590322 -[NSTableView _sendDelegateHeightOfRow:] + 130
13 AppKit 0x00007fff8c5900db -[NSTableView _uncachedRectHeightOfRow:] + 197
14 AppKit 0x00007fff8c58ff2c -[_NSTableRowHeightStorage _cacheRowHeights] + 163
15 AppKit 0x00007fff8c54a6f5 -[_NSTableRowHeightStorage _ensureRowHeights] + 80
16 AppKit 0x00007fff8c5680cb -[_NSTableRowHeightStorage computeRowAtPoint:] + 38
17 AppKit 0x00007fff8c567fd9 -[NSTableView rowAtPoint:] + 306
18 AppKit 0x00007fff8c566af7 -[NSTableView rowsInRect:] + 375
19 AppKit 0x00007fff8c597ca4 _NSTVVisibleRowsForUpdate + 673
20 AppKit 0x00007fff8c5971e5 -[NSTableRowData _unsafeUpdateVisibleRowEntries] + 96
21 AppKit 0x00007fff8c597001 -[NSTableRowData updateVisibleRowViews] + 119
22 AppKit 0x00007fff8c56f0fb -[NSTableView viewWillDraw] + 165
23 AppKit 0x00007fff8c44cbed __22-[NSView viewWillDraw]_block_invoke_0 + 307
24 CoreFoundation 0x00007fff8ace80b6 __NSArrayEnumerate + 582
25 AppKit 0x00007fff8c44c92d -[NSView viewWillDraw] + 244
26 AppKit 0x00007fff8c44bf84 -[NSView _sendViewWillDrawInRect:clipRootView:] + 1525
27 AppKit 0x00007fff8c4183f1 -[NSView displayIfNeeded] + 1044
28 AppKit 0x00007fff8c4c429e -[NSClipView _immediateScrollToPoint:] + 7852
29 AppKit 0x00007fff8c4c2342 -[NSClipView scrollToPoint:] + 268
30 AppKit 0x00007fff8c58acdd -[NSScrollView scrollClipView:toPoint:] + 426
31 AppKit 0x00007fff8c4c20cc -[NSClipView _scrollTo:animateScroll:flashScrollerKnobs:] + 1626
32 AppKit 0x00007fff8c39d579 -[NSClipView _scrollTo:animate:] + 28
33 AppKit 0x00007fff8caab2a1 __31-[NSScrollView _snapRubberBand]_block_invoke_0610 + 1989
34 AppKit 0x00007fff8ca2412a ____NSPeriodicInvokerScheduled_block_invoke_0 + 57
35 libdispatch.dylib 0x00007fff8a013f3d _dispatch_call_block_and_release + 15
36 libdispatch.dylib 0x00007fff8a0100fa _dispatch_client_callout + 8
37 libdispatch.dylib 0x00007fff8a0149ab _dispatch_after_timer_callback + 22
38 libdispatch.dylib 0x00007fff8a0100fa _dispatch_client_callout + 8
39 libdispatch.dylib 0x00007fff8a0122d7 _dispatch_source_invoke + 691
40 libdispatch.dylib 0x00007fff8a011349 _dispatch_queue_invoke + 72
41 libdispatch.dylib 0x00007fff8a0150cd _dispatch_main_queue_callback_4CF + 220
42 CoreFoundation 0x00007fff8ac9181e __CFRunLoopRun + 1614
43 CoreFoundation 0x00007fff8ac90dd2 CFRunLoopRunSpecific + 290
44 HIToolbox 0x00007fff85323774 RunCurrentEventLoopInMode + 209
45 HIToolbox 0x00007fff85323512 ReceiveNextEventCommon + 356
46 HIToolbox 0x00007fff853233a3 BlockUntilNextEventMatchingListInMode + 62
47 AppKit 0x00007fff8c414fa3 _DPSNextEvent + 685
48 AppKit 0x00007fff8c414862 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
49 AppKit 0x00007fff8c40bc03 -[NSApplication run] + 517
50 AppKit 0x00007fff8c3b0656 NSApplicationMain + 869
51 My App 0x00000001030b4554 My App + 5460
52 ??? 0x0000000000000002 0x0 + 2
I know that's code that was running on the main thread, but yet it's shown in that section and NOT in the Thread 0 backtrace, which looks something like this:
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff8588d212 __pthread_kill + 10
1 libsystem_c.dylib 0x00007fff8e1fab34 pthread_kill + 90
2 libsystem_c.dylib 0x00007fff8e23edfa abort + 143
3 libc++abi.dylib 0x00007fff888abf87 abort_message + 257
4 libc++abi.dylib 0x00007fff888a9936 default_terminate() + 28
5 libobjc.A.dylib 0x00007fff8d7238f3 _objc_terminate() + 91
6 libc++.1.dylib 0x00007fff8694c8fe std::terminate() + 20
7 libobjc.A.dylib 0x00007fff8d72365e objc_terminate + 9
8 libdispatch.dylib 0x00007fff8a01010e _dispatch_client_callout + 28
9 libdispatch.dylib 0x00007fff8a0149ab _dispatch_after_timer_callback + 22
10 libdispatch.dylib 0x00007fff8a0100fa _dispatch_client_callout + 8
11 libdispatch.dylib 0x00007fff8a0122d7 _dispatch_source_invoke + 691
12 libdispatch.dylib 0x00007fff8a011349 _dispatch_queue_invoke + 72
13 libdispatch.dylib 0x00007fff8a0150cd _dispatch_main_queue_callback_4CF + 220
14 com.apple.CoreFoundation 0x00007fff8ac9181e __CFRunLoopRun + 1614
15 com.apple.CoreFoundation 0x00007fff8ac90dd2 CFRunLoopRunSpecific + 290
16 com.apple.HIToolbox 0x00007fff85323774 RunCurrentEventLoopInMode + 209
17 com.apple.HIToolbox 0x00007fff85323512 ReceiveNextEventCommon + 356
18 com.apple.HIToolbox 0x00007fff853233a3 BlockUntilNextEventMatchingListInMode + 62
19 com.apple.AppKit 0x00007fff8c414fa3 _DPSNextEvent + 685
20 com.apple.AppKit 0x00007fff8c414862 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
21 com.apple.AppKit 0x00007fff8c40bc03 -[NSApplication run] + 517
22 com.apple.AppKit 0x00007fff8c3b0656 NSApplicationMain + 869
23 com.mycompany.myapp 0x00000001030b4554 0x1030b3000 + 5460
What's the significance of "Application Specific Backtrace" and why isn't that code included in the main thread backtrace?
(To be clear, I'm not asking how to debug this code, I'm just looking for an explanation on the structure and meaning of the crash log itself. Thanks!)
This is how exception handling works. You have an exception on the main thread, where the NSException is created (it holds all info about exception including current stack trace). After throwing an exception object control is passed to the closest handler in the call stack, unwinding the stack between throw and catch point. If an exception is not caught, it is intercepted by a function called the uncaught exception handler. The uncaught exception handler always causes the program to exit but may perform some task before this happens.
The default uncaught exception handler logs a message to the console before it exits the program.
So in your case Application Specific Backtrace is the stacktrace when exception was thrown and Thread 0 Crashed:: Dispatch queue: com.apple.main-thread is the stack trace when the app was killed.
Notice that up to this point the stack trace is identical:
10 libdispatch.dylib 0x00007fff8a0100fa _dispatch_client_callout + 8
11 libdispatch.dylib 0x00007fff8a0122d7 _dispatch_source_invoke + 691
12 libdispatch.dylib 0x00007fff8a011349 _dispatch_queue_invoke + 72
13 libdispatch.dylib 0x00007fff8a0150cd _dispatch_main_queue_callback_4CF + 220
14 com.apple.CoreFoundation 0x00007fff8ac9181e __CFRunLoopRun + 1614
15 com.apple.CoreFoundation 0x00007fff8ac90dd2 CFRunLoopRunSpecific + 290
16 com.apple.HIToolbox 0x00007fff85323774 RunCurrentEventLoopInMode + 209
17 com.apple.HIToolbox 0x00007fff85323512 ReceiveNextEventCommon + 356
18 com.apple.HIToolbox 0x00007fff853233a3 BlockUntilNextEventMatchingListInMode + 62
19 com.apple.AppKit 0x00007fff8c414fa3 _DPSNextEvent + 685
20 com.apple.AppKit 0x00007fff8c414862 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
21 com.apple.AppKit 0x00007fff8c40bc03 -[NSApplication run] + 517
22 com.apple.AppKit 0x00007fff8c3b0656 NSApplicationMain + 869