ios – 如何识别iPad应用程序崩溃的原因？

概述我正在开发一个iPad应用程序,我正面临崩溃问题,但无法找到它背后的原因. 崩溃后它只指向main.mm文件. 尝试： - NSLogs - NSZombiEnabled 以下是崩溃日志.据我所知,它正在使用一些已经被释放的内存位置.但是如何识别,它是哪个对象？ Incident Identifier: AF769A76-ADB4-4C3C-9A94-E0B45A994B42CrashRepo 我正在开发一个iPad应用程序,我正面临崩溃问题,但无法找到它背后的原因.

崩溃后它只指向main.mm文件.

尝试：

- NSLogs - NSZombIEnabled

以下是崩溃日志.据我所知,它正在使用一些已经被释放的内存位置.但是如何识别,它是哪个对象？

IncIDent IDentifIEr: AF769A76-ADB4-4C3C-9A94-E0B45A994B42CrashReporter Key:   7443d58afe6b6a3df23c273ba834f8ae4814a7ceHarDWare Model:      iPad2,1Process:             BLSOffline [3255]Path:                /var/mobile/Applications/A4C2BB5D-0FE4-4A4D-B1D6-FF6E0183F4EE/BLSOffline.app/BLSOfflineIDentifIEr:          com.bentley.LearnInHouseVersion:             1.0 (1.0)Code Type:           ARM (Native)Parent Process:      launchd [1]Date/Time:           2013-12-02 18:29:21.692 +0530OS Version:          iOS 7.0.4 (11B554a)Report Version:      104Exception Type:  EXC_BAD_ACCESS (SIGSEGV)Exception Subtype: KERN_INVALID_ADDRESS at 0x6192010bTriggered by Thread:  0Thread 0 Crashed:0   libobjc.A.dylib                 0x3a92db26 objc_msgSend + 61   MediaPlayer                     0x314a2540 -[MPMovIEPlayerControllerNew _movIEPlayerWillBecomeActiveNotification:] + 4722   CoreFoundation                  0x30223116 __CFNOTIFICATIONCENTER_IS_CALliNG_OUT_TO_AN_OBSERVER__ + 103   CoreFoundation                  0x30197252 _CFXNotificationPost + 17144   Foundation                      0x30b7cc28 -[NSNotificationCenter postNotificationname:object:userInfo:] + 725   MediaPlayer                     0x314a4a60 -[MPMovIEPlayerControllerNew _postNotificationname:object:userInfo:] + 966   MediaPlayer                     0x314a49f0 -[MPMovIEPlayerControllerNew _postNotificationname:object:] + 407   MediaPlayer                     0x314a43d4 -[MPMovIEPlayerControllerNew _ensureActive] + 1288   MediaPlayer                     0x314a44a2 -[MPMovIEPlayerControllerNew _preparetoPlayWithStartIndex:] + 669   MediaPlayer                     0x314a009c -[MPMovIEPlayerControllerNew preparetoPlay] + 4010  MediaPlayer                     0x314a0100 -[MPMovIEPlayerControllerNew play] + 4411  MediaPlayer                     0x314a2b2e -[MPMovIEPlayerControllerNew _movIESourceTypeAvailableNotification:] + 35012  CoreFoundation                  0x30223116 __CFNOTIFICATIONCENTER_IS_CALliNG_OUT_TO_AN_OBSERVER__ + 1013  CoreFoundation                  0x30197252 _CFXNotificationPost + 171414  Foundation                      0x30b7cc28 -[NSNotificationCenter postNotificationname:object:userInfo:] + 7215  Foundation                      0x30b81506 -[NSNotificationCenter postNotificationname:object:] + 2616  MediaPlayer                     0x31525b00 -[MPMovIE _determineMediaType] + 15217  Foundation                      0x30c3b386 __NSFireDelayedPerform + 41018  CoreFoundation                  0x3022c0dc __CFRUNLOOP_IS_CALliNG_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 1219  CoreFoundation                  0x3022bcf2 __CFRunLoopDoTimer + 77820  CoreFoundation                  0x3022a08e __CFRunLoopRun + 120621  CoreFoundation                  0x30194c22 CFRunLoopRunspecific + 51822  CoreFoundation                  0x30194a06 CFRunLoopRunInMode + 10223  GraphiCSServices                0x34e6827e GSEventRunModal + 13424  UIKit                           0x32a38044 UIApplicationMain + 113225  BLSOffline                      0x00116c0e 0xee000 + 16692626  libdyld.dylib                   0x3ae3aab4 start + 0Thread 1 name:  gputools.smt_poll.0x14632d20Thread 1:0   libsystem_kernel.dylib          0x3aef1550 __semwait_signal + 241   libsystem_c.dylib               0x3ae62808 nanosleep + 1682   libsystem_c.dylib               0x3ae62756 usleep + 463   GPUToolscore                    0x02292f34 smt_poll_thread_entry(voID*) + 1204   libsystem_pthread.dylib         0x3af59c1a _pthread_body + 1385   libsystem_pthread.dylib         0x3af59b8a _pthread_start + 986   libsystem_pthread.dylib         0x3af57c8c thread_start + 4Thread 2:0   libsystem_kernel.dylib          0x3aede83c kevent64 + 241   libdispatch.dylib               0x3ae1f210 _dispatch_mgr_invoke + 2282   libdispatch.dylib               0x3ae1ef96 _dispatch_mgr_thread$VARIANT$mp + 34Thread 3 name:  WebThreadThread 3:0   libsystem_kernel.dylib          0x3aef0fa8 __psynch_mutexwait + 241   libsystem_pthread.dylib         0x3af57f0a _pthread_mutex_lock + 3022   WebCore                         0x383037f0 _WebTryThreadLock(bool) + 1043   WebCore                         0x38303772 WebRunLoopLock(__CFRunLoopObserver*,unsigned long,voID*) + 424   CoreFoundation                  0x3022c1ca __CFRUNLOOP_IS_CALliNG_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 185   CoreFoundation                  0x30229b6c __CFRunLoopDoObservers + 2806   CoreFoundation                  0x30229f7c __CFRunLoopRun + 9327   CoreFoundation                  0x30194c22 CFRunLoopRunspecific + 5188   CoreFoundation                  0x30194a06 CFRunLoopRunInMode + 1029   WebCore                         0x38302266 RunWebThread(voID*) + 41410  libsystem_pthread.dylib         0x3af59c1a _pthread_body + 13811  libsystem_pthread.dylib         0x3af59b8a _pthread_start + 9812  libsystem_pthread.dylib         0x3af57c8c thread_start + 4Thread 4:0   libsystem_kernel.dylib          0x3aedea8c mach_msg_trap + 201   libsystem_kernel.dylib          0x3aede888 mach_msg + 442   CoreFoundation                  0x3022b7be __CFRunLoopServiceMachPort + 1503   CoreFoundation                  0x30229ee4 __CFRunLoopRun + 7804   CoreFoundation                  0x30194c22 CFRunLoopRunspecific + 5185   CoreFoundation                  0x30194a06 CFRunLoopRunInMode + 1026   libAVFAudio.dylib               0x2f217584 GenericRunLoopThread::Entry(voID*) + 1247   libAVFAudio.dylib               0x2f20b99c CAPThread::Entry(CAPThread*) + 1768   libsystem_pthread.dylib         0x3af59c1a _pthread_body + 1389   libsystem_pthread.dylib         0x3af59b8a _pthread_start + 9810  libsystem_pthread.dylib         0x3af57c8c thread_start + 4Thread 5 name:  JavaScriptCore::BlockFreeThread 5:0   libsystem_kernel.dylib          0x3aef0f38 __psynch_cvwait + 241   libsystem_pthread.dylib         0x3af59224 _pthread_cond_wait + 5362   libsystem_pthread.dylib         0x3af5a000 pthread_cond_wait + 363   JavaScriptCore                  0x311b9d50 JsC::BlockAllocator::blockFreeingThreadMain() + 2044   JavaScriptCore                  0x311b73a0 WTF::wtfThreadEntryPoint(voID*) + 125   libsystem_pthread.dylib         0x3af59c1a _pthread_body + 1386   libsystem_pthread.dylib         0x3af59b8a _pthread_start + 987   libsystem_pthread.dylib         0x3af57c8c thread_start + 4Thread 6 name:  JavaScriptCore::MarkingThread 6:0   libsystem_kernel.dylib          0x3aef0f38 __psynch_cvwait + 241   libsystem_pthread.dylib         0x3af59224 _pthread_cond_wait + 5362   libsystem_pthread.dylib         0x3af5a000 pthread_cond_wait + 363   JavaScriptCore                  0x31355236 JsC::GCThread::waitForNextPhase() + 744   JavaScriptCore                  0x31355290 JsC::GCThread::gcThreadMain() + 485   JavaScriptCore                  0x311b73a0 WTF::wtfThreadEntryPoint(voID*) + 126   libsystem_pthread.dylib         0x3af59c1a _pthread_body + 1387   libsystem_pthread.dylib         0x3af59b8a _pthread_start + 988   libsystem_pthread.dylib         0x3af57c8c thread_start + 4Thread 7 name:  WebCore: CFNetwork LoaderThread 7:0   libsystem_kernel.dylib          0x3aedea8c mach_msg_trap + 201   libsystem_kernel.dylib          0x3aede888 mach_msg + 442   CoreFoundation                  0x3022b7be __CFRunLoopServiceMachPort + 1503   CoreFoundation                  0x30229ee4 __CFRunLoopRun + 7804   CoreFoundation                  0x30194c22 CFRunLoopRunspecific + 5185   CoreFoundation                  0x30194a06 CFRunLoopRunInMode + 1026   WebCore                         0x3834ad5a WebCore::runLoaderThread(voID*) + 2507   JavaScriptCore                  0x311b73a0 WTF::wtfThreadEntryPoint(voID*) + 128   libsystem_pthread.dylib         0x3af59c1a _pthread_body + 1389   libsystem_pthread.dylib         0x3af59b8a _pthread_start + 9810  libsystem_pthread.dylib         0x3af57c8c thread_start + 4Thread 8 name:  com.apple.NSURLConnectionLoaderThread 8:0   libsystem_kernel.dylib          0x3aedea8c mach_msg_trap + 201   libsystem_kernel.dylib          0x3aede888 mach_msg + 442   CoreFoundation                  0x3022b7be __CFRunLoopServiceMachPort + 1503   CoreFoundation                  0x30229ee4 __CFRunLoopRun + 7804   CoreFoundation                  0x30194c22 CFRunLoopRunspecific + 5185   CoreFoundation                  0x30194a06 CFRunLoopRunInMode + 1026   Foundation                      0x30bcf2f2 +[NSURLConnection(Loader) _resourceLoadLoop:] + 3147   Foundation                      0x30c44c82 __NSThread__main__ + 10588   libsystem_pthread.dylib         0x3af59c1a _pthread_body + 1389   libsystem_pthread.dylib         0x3af59b8a _pthread_start + 9810  libsystem_pthread.dylib         0x3af57c8c thread_start + 4Thread 9 name:  com.apple.CFSocket.privateThread 9:0   libsystem_kernel.dylib          0x3aef1440 __select + 201   CoreFoundation                  0x3022f680 __CFSocketManager + 4802   libsystem_pthread.dylib         0x3af59c1a _pthread_body + 1383   libsystem_pthread.dylib         0x3af59b8a _pthread_start + 984   libsystem_pthread.dylib         0x3af57c8c thread_start + 4Thread 10 name:  WebCore: localstorageThread 10:0   libsystem_kernel.dylib          0x3aef0f38 __psynch_cvwait + 241   libsystem_pthread.dylib         0x3af59224 _pthread_cond_wait + 5362   libsystem_pthread.dylib         0x3af5a000 pthread_cond_wait + 363   JavaScriptCore                  0x311b9e82 WTF::ThreadCondition::timeDWait(WTF::Mutex&,double) + 584   WebCore                         0x384353a8 WTF::PassOwnPtr<WTF::Function<voID ()> > WTF::MessageQueue<WTF::Function<voID ()> >::waitForMessageFiltereDWithTimeout<bool (WTF::Function<voID ()>*)>(WTF::MessageQueueWaitResult&,bool (&)(WTF::Function<voID ()>*),double) + 1045   WebCore                         0x3843532e WebCore::StorageThread::threadEntryPoint() + 1626   JavaScriptCore                  0x311b73a0 WTF::wtfThreadEntryPoint(voID*) + 127   libsystem_pthread.dylib         0x3af59c1a _pthread_body + 1388   libsystem_pthread.dylib         0x3af59b8a _pthread_start + 989   libsystem_pthread.dylib         0x3af57c8c thread_start + 4Thread 11 name:  com.apple.coremedia.player.asyncThread 11:0   libsystem_kernel.dylib          0x3aedeadc semaphore_wait_trap + 81   libdispatch.dylib               0x3ae1d428 _dispatch_semaphore_wait_slow + 1722   MediaToolBox                    0x3168083c fpa_AsyncMovIEControlThread + 17523   CoreMedia                       0x307bf234 figThreadMain + 1924   libsystem_pthread.dylib         0x3af59c1a _pthread_body + 1385   libsystem_pthread.dylib         0x3af59b8a _pthread_start + 986   libsystem_pthread.dylib         0x3af57c8c thread_start + 4Thread 12 name:  com.apple.coremedia.player.remoteThread 12:0   libsystem_kernel.dylib          0x3aedea8c mach_msg_trap + 201   libsystem_kernel.dylib          0x3aede888 mach_msg + 442   MediaToolBox                    0x31686c58 figExpressNotificationThread + 843   CoreMedia                       0x307bf234 figThreadMain + 1924   libsystem_pthread.dylib         0x3af59c1a _pthread_body + 1385   libsystem_pthread.dylib         0x3af59b8a _pthread_start + 986   libsystem_pthread.dylib         0x3af57c8c thread_start + 4Thread 13:0   libsystem_kernel.dylib          0x3aef1c7c __workq_kernreturn + 81   libsystem_pthread.dylib         0x3af57dc6 _pthread_wqthread + 3062   libsystem_pthread.dylib         0x3af57c80 start_wqthread + 4Thread 14:0   libsystem_kernel.dylib          0x3aef1c7c __workq_kernreturn + 81   libsystem_pthread.dylib         0x3af57dc6 _pthread_wqthread + 3062   libsystem_pthread.dylib         0x3af57c80 start_wqthread + 4Thread 15 name:  com.apple.coremedia.player.asyncThread 15:0   libsystem_kernel.dylib          0x3aedeadc semaphore_wait_trap + 81   libdispatch.dylib               0x3ae1d428 _dispatch_semaphore_wait_slow + 1722   MediaToolBox                    0x3168083c fpa_AsyncMovIEControlThread + 17523   CoreMedia                       0x307bf234 figThreadMain + 1924   libsystem_pthread.dylib         0x3af59c1a _pthread_body + 1385   libsystem_pthread.dylib         0x3af59b8a _pthread_start + 986   libsystem_pthread.dylib         0x3af57c8c thread_start + 4Thread 16:0   libsystem_kernel.dylib          0x3aef1c7c __workq_kernreturn + 81   libsystem_pthread.dylib         0x3af57dc6 _pthread_wqthread + 3062   libsystem_pthread.dylib         0x3af57c80 start_wqthread + 4Thread 0 crashed with ARM Thread State (32-bit):    r0: 0x145cb7d0    r1: 0x31617754      r2: 0x3b3091a0      r3: 0x00000000    r4: 0x1918aea0    r5: 0x145cb7d0      r6: 0x00000000      r7: 0x27d134f8    r8: 0x00000000    r9: 0x619200ff     r10: 0x31617754     r11: 0x145cb7ec    ip: 0x3b2cd2a4    sp: 0x27d134c0      lr: 0x314a2545      pc: 0x3a92db26  cpsr: 0x60000030

解决方法 看起来你好像忘记删除电影回调的观察者：

-(voID) dealloc{    [[NSNotificationCenter defaultCenter] removeObserver:self];}

电影播放器​​(通过NSNotificationCenter)可能是使用某些内存位置的对象,该内存位置在尝试通知其观察者时已被释放

总结

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