我们在设备上遇到崩溃，其中包含一个奇怪的崩溃日志，其中不包含任何应用程序的代码。知道是什么导致了这个吗？
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x00000000e0000010
Triggered by Thread: 5
Thread 0:
0 libsystem_kernel.dylib 0x3a773a50 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3a773849 mach_msg + 37
2 CoreFoundation 0x2f5c6625 __CFRunLoopServiceMachPort + 153
3 CoreFoundation 0x2f5c4d8b __CFRunLoopRun + 859
4 CoreFoundation 0x2f52f765 CFRunLoopRunSpecific + 521
5 CoreFoundation 0x2f52f547 CFRunLoopRunInMode + 103
6 GraphicsServices 0x344666cf GSEventRunModal + 135
7 UIKit 0x31e8e88d UIApplicationMain + 1133
8 MyApp 0x0002ae4b main (main.m:15)
9 MyApp 0x0001ff44 start + 36
Thread 1:
0 libsystem_kernel.dylib 0x3a773804 kevent64 + 24
1 libdispatch.dylib 0x3a6c2051 _dispatch_mgr_invoke + 229
2 libdispatch.dylib 0x3a6bc2df _dispatch_mgr_thread + 35
Thread 2 name: com.apple.NSURLConnectionLoader
Thread 2:
0 libsystem_kernel.dylib 0x3a773a50 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3a773849 mach_msg + 37
2 CoreFoundation 0x2f5c6625 __CFRunLoopServiceMachPort + 153
3 CoreFoundation 0x2f5c4d45 __CFRunLoopRun + 789
4 CoreFoundation 0x2f52f765 CFRunLoopRunSpecific + 521
5 CoreFoundation 0x2f52f547 CFRunLoopRunInMode + 103
6 Foundation 0x2ff6f23d +[NSURLConnection(Loader) _resourceLoadLoop:] + 317
7 Foundation 0x2ffe4a0b __NSThread__main__ + 1059
8 libsystem_pthread.dylib 0x3a7ed957 _pthread_body + 139
9 libsystem_pthread.dylib 0x3a7ed8c7 _pthread_start + 99
10 libsystem_pthread.dylib 0x3a7ebae4 thread_start + 4
Thread 3:
0 libsystem_kernel.dylib 0x3a786c70 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3a7ebc1f _pthread_wqthread + 307
2 libsystem_pthread.dylib 0x3a7ebad8 start_wqthread + 4
Thread 4 name: com.apple.CFSocket.private
Thread 4:
0 libsystem_kernel.dylib 0x3a786434 __select + 20
1 CoreFoundation 0x2f5ca51f __CFSocketManager + 483
2 libsystem_pthread.dylib 0x3a7ed957 _pthread_body + 139
3 libsystem_pthread.dylib 0x3a7ed8c7 _pthread_start + 99
4 libsystem_pthread.dylib 0x3a7ebae4 thread_start + 4
Thread 5 Crashed:
0 libobjc.A.dylib 0x3a1e066b objc_release + 11
1 libobjc.A.dylib 0x3a1e10cf (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 355
2 libobjc.A.dylib 0x3a1e1b49 (anonymous namespace)::AutoreleasePoolPage::tls_dealloc(void*) + 37
3 libsystem_pthread.dylib 0x3a7ec6cf _pthread_tsd_cleanup + 163
4 libsystem_pthread.dylib 0x3a7ec44f _pthread_exit + 83
5 libsystem_pthread.dylib 0x3a7ed1b5 pthread_exit + 25
6 Foundation 0x2ff386ff +[NSThread exit] + 7
7 Foundation 0x2ffe4a29 __NSThread__main__ + 1089
8 libsystem_pthread.dylib 0x3a7ed957 _pthread_body + 139
9 libsystem_pthread.dylib 0x3a7ed8c7 _pthread_start + 99
10 libsystem_pthread.dylib 0x3a7ebae4 thread_start + 4
Thread 6:
0 libsystem_kernel.dylib 0x3a786c70 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3a7ebc1f _pthread_wqthread + 307
2 libsystem_pthread.dylib 0x3a7ebad8 start_wqthread + 4
Thread 7:
0 libsystem_kernel.dylib 0x3a786c70 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3a7ebc1f _pthread_wqthread + 307
2 libsystem_pthread.dylib 0x3a7ebad8 start_wqthread + 4
Thread 5 crashed with ARM Thread State (32-bit):
r0: 0x156ba550 r1: 0xe0000000 r2: 0x00000001 r3: 0x15b9d028
r4: 0x15b9d000 r5: 0x0679d0a4 r6: 0xa3a3a3a3 r7: 0x0679cd5c
r8: 0x15b9d028 r9: 0x9a001683 r10: 0x00000000 r11: 0x3c473a30
ip: 0x3a96f7b0 sp: 0x0679cb2c lr: 0x3a1e10d3 pc: 0x3a1e066a
cpsr: 0x20000030
我们检查了Zombie对象但找不到任何对象。非常感谢。
答案 0 :(得分：0)
我们能够重现这个问题并发现这是iPad Airs上的内存问题。我们发现，由于某些原因，这些iPad Air上的iOS正试图释放无效的内存地址或以前释放的地址。我们现在能够在iPad Airs上按需复制，但在其他iPad上看不到同样的问题。