首先，desymbolicated崩溃日志位于底部。出于隐私原因，我无法发布所有内容。然而，前三个线程日志已经足够我想了，如果你真的想要，请留言。
根据这篇文章Understanding iOS Exception Types | 5Neo.Be5Neo.Be，这是事情，马赫例外类型 - EXC_CRASH - 通常不会跟随C信号 SIGSEGV （这意味着访问您不拥有的地址）。
所以我想知道 EXC_CRASH（SIGSEGV）会出现什么原因或什么时候出现？
第二个问题是，如果这个崩溃实际上是由日志所说的线程0触发的。如果它真的，那么
是什么＆＃34; __ NSThreadPerformPerform＆＃34;
和
＆＃34; __ CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION __＆＃34;
装置？
系统在做什么动作？顺便说一下，当App调用＆＃34; performSelector：＆＃34;时，会出现 __ NSThreadPerformPerform 。根据这个答案的方法 - iphone - SIGABRT crash on CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION - Stack Overflow。
感谢。
- 崩溃日志在这里： -
{"name":"XXXApp","bug_type":"109","os_version":"iPhone OS 7.1.1 (11D201)","bundleID":"com.xxx","version":"6.7.1.0 (6.7.1)","app_name":"XXXApp"}
Incident Identifier: EC2DC883-C0DB-4FD6-81FB-237626598366
CrashReporter Key: d5c091bc35732df06fcaf41e5786833159b04ea5
Hardware Model: iPhone5,2
Process: XXXApp [1912]
Path: /var/mobile/Applications/4E3E131C-5847-4B61-A0E0-D350830C1693/BaiduBoxApp.app/XXXApp
Identifier: com.xxx
Version: 6.7.1.0 (6.7.1)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2015-08-28 00:37:32.658 +0800
OS Version: iOS 7.1.1 (11D201)
Report Version: 104
Exception Type: EXC_CRASH (SIGSEGV)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Triggered by Thread: 0
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x39c636d8 __kill + 8
1 Foundation 0x2f901c1e __NSThreadPerformPerform + 382
2 CoreFoundation 0x2eee3fec __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 12
3 CoreFoundation 0x2eee34b2 __CFRunLoopDoSources0 + 202
4 CoreFoundation 0x2eee1ca2 __CFRunLoopRun + 626
5 CoreFoundation 0x2ee4c764 CFRunLoopRunSpecific + 520
6 CoreFoundation 0x2ee4c546 CFRunLoopRunInMode + 102
7 GraphicsServices 0x33db96ce GSEventRunModal + 134
8 UIKit 0x317ab88c UIApplicationMain + 1132
9 BaiduBoxApp 0x0006d13e main (main.m:17)
10 libdyld.dylib 0x39badab4 start + 0
Thread 1:
0 libsystem_kernel.dylib 0x39c51804 kevent64 + 24
1 libdispatch.dylib 0x39ba0050 _dispatch_mgr_invoke + 228
2 libdispatch.dylib 0x39b9a2de _dispatch_mgr_thread + 34
Thread 2 name: com.apple.NSURLConnectionLoader
Thread 2:
0 libsystem_kernel.dylib 0x39c51a50 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x39c51848 mach_msg + 36
2 CoreFoundation 0x2eee3624 __CFRunLoopServiceMachPort + 152
3 CoreFoundation 0x2eee1d44 __CFRunLoopRun + 788
4 CoreFoundation 0x2ee4c764 CFRunLoopRunSpecific + 520
5 CoreFoundation 0x2ee4c546 CFRunLoopRunInMode + 102
6 Foundation 0x2f88c23c +[NSURLConnection(Loader) _resourceLoadLoop:] + 316
7 Foundation 0x2f901a0a __NSThread__main__ + 1058
8 libsystem_pthread.dylib 0x39ccb956 _pthread_body + 138
9 libsystem_pthread.dylib 0x39ccb8c6 _pthread_start + 98
10 libsystem_pthread.dylib 0x39cc9ae4 thread_start + 4
Thread 3 name: com.apple.CFSocket.private
Thread 3:
0 libsystem_kernel.dylib 0x39c64434 __select + 20
1 CoreFoundation 0x2eee751e __CFSocketManager + 482
2 libsystem_pthread.dylib 0x39ccb956 _pthread_body + 138
3 libsystem_pthread.dylib 0x39ccb8c6 _pthread_start + 98
4 libsystem_pthread.dylib 0x39cc9ae4 thread_start + 4
...