我的iOS应用程序中的SIGSEGV SEGV_MAPERR崩溃

我的实时iOS应用程序中出现SIGSEGV SEGV_MAPERR崩溃。 当我的应用程序为32位时，这些崩溃并不存在。自从我让我的应用程序与64位兼容后，这些崩溃开始出现。 此外，报告这些错误的iOS设备是64位的。因此，32位设备上没有错误

请帮帮我。此崩溃正在恶化我的应用程序的性能。它们经常发生

Critercism报告了以下堆栈跟踪

Crashed Thread
0     libobjc.A.dylib 0x0000000196703bd0 objc_msgSend + 12
1     CoreFoundation 0x0000000184951458 CFRelease + 520
2     QuartzCore 0x0000000188e24ad8 CA::release_objects() + 28
3     QuartzCore 0x0000000188e2aaec -[CAAnimation dealloc] + 80
4     CoreFoundation 0x0000000184951458 CFRelease + 520
5     QuartzCore 0x0000000188e2d634 CA::Layer::run_animation_callbacks() + 300
6     libdispatch.dylib 0x0000000196d6d954 _dispatch_client_callout + 12
7     libdispatch.dylib 0x0000000196d7220c _dispatch_main_queue_callback_4CF + 1604
8     CoreFoundation 0x0000000184a2b7f8 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 8
9     CoreFoundation 0x0000000184a298a0 __CFRunLoopRun + 1488
10     CoreFoundation 0x00000001849552d4 CFRunLoopRunSpecific + 392
11     GraphicsServices 0x000000018e3b36fc GSEventRunModal + 164
12     UIKit 0x0000000189552f40 UIApplicationMain + 1484
13     My App 0x00000001000f2a7c main (main.m:19)
14     libdyld.dylib 0x0000000196d9aa08 start + 0


14 other threads

Thread: Unknown Name

0     libsystem_kernel.dylib 0x0000000196e98c24 kevent64 + 4
1     libdispatch.dylib 0x0000000196d6f99c _dispatch_mgr_thread + 48
Thread: Unknown Name

0     libsystem_kernel.dylib 0x0000000196eb3c78 __workq_kernreturn + 4
1     libsystem_pthread.dylib 0x0000000196f4cef0 start_wqthread + 0
Thread: Unknown Name

0     libsystem_kernel.dylib 0x0000000196eb3c78 __workq_kernreturn + 4
1     libsystem_pthread.dylib 0x0000000196f4cef0 start_wqthread + 0
Thread: Unknown Name

0     libsystem_kernel.dylib 0x0000000196eb3c78 __workq_kernreturn + 4
1     libsystem_pthread.dylib 0x0000000196f4cef0 start_wqthread + 0
Thread: Unknown Name

0     libsystem_kernel.dylib 0x0000000196eb3c78 __workq_kernreturn + 4
1     libsystem_pthread.dylib 0x0000000196f4cef0 start_wqthread + 0
Thread: Unknown Name

0     libsystem_kernel.dylib 0x0000000196eb3c78 __workq_kernreturn + 4
1     libsystem_pthread.dylib 0x0000000196f4cef0 start_wqthread + 0
Thread: Unknown Name

0     libsystem_kernel.dylib 0x0000000196eb3c78 __workq_kernreturn + 4
1     libsystem_pthread.dylib 0x0000000196f4cef0 start_wqthread + 0
Thread: Unknown Name

0     libsystem_kernel.dylib 0x0000000196e98e0c mach_msg_trap + 4
1     CoreFoundation 0x0000000184a2b724 __CFRunLoopServiceMachPort + 196
2     CoreFoundation 0x0000000184a29678 __CFRunLoopRun + 936
3     CoreFoundation 0x00000001849552d4 CFRunLoopRunSpecific + 392
4     CFNetwork 0x0000000184432594 +[NSURLConnection(Loader) _resourceLoadLoop:] + 436
5     Foundation 0x0000000185975db8 __NSThread__main__ + 1068
6     libsystem_pthread.dylib 0x0000000196f4fdc8 _pthread_body + 160
7     libsystem_pthread.dylib 0x0000000196f4fd24 _pthread_start + 156
8     libsystem_pthread.dylib 0x0000000196f4cef8 thread_start + 0
Thread: Unknown Name

0     libsystem_kernel.dylib 0x0000000196eb3078 __psynch_cvwait + 4
1     libc++.1.dylib 0x0000000195e80cb0 std::__1::condition_variable::wait() + 52
2     My App 0x000000010022c41c _ZN7dropbox11LogUploader17log_upload_threadEv + 2024
3     My App 0x00000001002b18c8 -[DBThreadRunner runThread:] + 136
4     Foundation 0x0000000185975db8 __NSThread__main__ + 1068
5     libsystem_pthread.dylib 0x0000000196f4fdc8 _pthread_body + 160
6     libsystem_pthread.dylib 0x0000000196f4fd24 _pthread_start + 156
7     libsystem_pthread.dylib 0x0000000196f4cef8 thread_start + 0
Thread: Unknown Name

0     libsystem_kernel.dylib 0x0000000196eb3c78 __workq_kernreturn + 4
1     libsystem_pthread.dylib 0x0000000196f4cef0 start_wqthread + 0
Thread: Unknown Name

0     libsystem_kernel.dylib 0x0000000196eb3078 __psynch_cvwait + 4
1     libc++.1.dylib 0x0000000195e80cb0 std::__1::condition_variable::wait() + 52
2     My App 0x0000000100365c24 _ZN11DbxUnlinker3runEv + 108
3     My App 0x00000001002b18c8 -[DBThreadRunner runThread:] + 136
4     Foundation 0x0000000185975db8 __NSThread__main__ + 1068
5     libsystem_pthread.dylib 0x0000000196f4fdc8 _pthread_body + 160
6     libsystem_pthread.dylib 0x0000000196f4fd24 _pthread_start + 156
7     libsystem_pthread.dylib 0x0000000196f4cef8 thread_start + 0
Thread: Unknown Name

0     libsystem_kernel.dylib 0x0000000196eb3c78 __workq_kernreturn + 4
1     libsystem_pthread.dylib 0x0000000196f4cef0 start_wqthread + 0
Thread: Unknown Name

0     My App 0x00000001001faf34 mach_exception_callback + 168
1     My App 0x00000001002074d0 exception_server_thread + 304
2     libsystem_pthread.dylib 0x0000000196f4fdc8 _pthread_body + 160
3     libsystem_pthread.dylib 0x0000000196f4fd24 _pthread_start + 156
4     libsystem_pthread.dylib 0x0000000196f4cef8 thread_start + 0
Thread: Unknown Name

0     libsystem_kernel.dylib 0x0000000196eb3498 select$DARWIN_EXTSN + 4
1     libsystem_pthread.dylib 0x0000000196f4fdc8 _pthread_body + 160
2     libsystem_pthread.dylib 0x0000000196f4fd24 _pthread_start + 156
3     libsystem_pthread.dylib 0x0000000196f4cef8 thread_start + 0