我收到很多关于使用4.1关于我的应用程序崩溃的人的投诉。我终于能够使用4.1跟踪设备并从中获取崩溃日志（顺便说一下，有没有办法可以使用4.1的模拟器？）而且我不确定如何解释它们。我认为罪魁祸首可能是AdWhirl，但我无法证实这一点，因为崩溃日志没有提到它。这是日志：
Incident Identifier: D63B6947-B553-4816-BFF3-451105DF6AC1
CrashReporter Key: e48b7e0079de90291849ebebfa2c4d2b3533593c
Hardware Model: iPhone3,1
Process: TruxMapFree [795]
Path: /var/mobile/Applications/51E80AC4-C5FF-4D3B-95CE-A2F5A96FBF85/TruxMapFree.app/TruxMapFree
Identifier: TruxMapFree
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2011-02-01 11:44:57.883 -0800
OS Version: iPhone OS 4.1 (8B117)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x00000000
Crashed Thread: 0
Thread 0 Crashed:
0 TruxMapFree 0x0003d196 0x1000 + 246166
1 TruxMapFree 0x000463ae 0x1000 + 283566
2 TruxMapFree 0x000468ca 0x1000 + 284874
3 CoreFoundation 0x0003e2e4 -[NSObject(NSObject) performSelector:withObject:] + 16
4 Foundation 0x0002081e __NSThreadPerformPerform + 262
5 CoreFoundation 0x00055f1e __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 6
6 CoreFoundation 0x00027ba0 __CFRunLoopDoSources0 + 376
7 CoreFoundation 0x00027444 __CFRunLoopRun + 224
8 CoreFoundation 0x00027270 CFRunLoopRunSpecific + 224
9 CoreFoundation 0x00027178 CFRunLoopRunInMode + 52
10 GraphicsServices 0x000045ec GSEventRunModal + 108
11 GraphicsServices 0x00004698 GSEventRun + 56
12 UIKit 0x0000411c -[UIApplication _run] + 396
13 UIKit 0x00002128 UIApplicationMain + 664
14 TruxMapFree 0x00003a4a 0x1000 + 10826
15 TruxMapFree 0x00003a14 0x1000 + 10772
Thread 1:
0 libSystem.B.dylib 0x0002d330 kevent + 24
1 libSystem.B.dylib 0x000d6b6c _dispatch_mgr_invoke + 88
2 libSystem.B.dylib 0x000d65bc _dispatch_queue_invoke + 96
3 libSystem.B.dylib 0x000d675c _dispatch_worker_thread2 + 120
4 libSystem.B.dylib 0x0007a67a _pthread_wqthread + 258
5 libSystem.B.dylib 0x00073190 start_wqthread + 0
Thread 2:
0 libSystem.B.dylib 0x00000c98 mach_msg_trap + 20
1 libSystem.B.dylib 0x00002d64 mach_msg + 44
2 CoreFoundation 0x00027c38 __CFRunLoopServiceMachPort + 88
3 CoreFoundation 0x000274c2 __CFRunLoopRun + 350
4 CoreFoundation 0x00027270 CFRunLoopRunSpecific + 224
5 CoreFoundation 0x00027178 CFRunLoopRunInMode + 52
6 WebCore 0x000024e2 RunWebThread(void*) + 362
7 libSystem.B.dylib 0x0007a27e _pthread_start + 242
8 libSystem.B.dylib 0x0006f2a8 thread_start + 0
Thread 3:
0 libSystem.B.dylib 0x00000c98 mach_msg_trap + 20
1 libSystem.B.dylib 0x00002d64 mach_msg + 44
2 CoreFoundation 0x00027c38 __CFRunLoopServiceMachPort + 88
3 CoreFoundation 0x000274c2 __CFRunLoopRun + 350
4 CoreFoundation 0x00027270 CFRunLoopRunSpecific + 224
5 CoreFoundation 0x00027178 CFRunLoopRunInMode + 52
6 Foundation 0x0002d686 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 206
7 Foundation 0x0000b222 -[NSThread main] + 38
8 Foundation 0x000042d6 __NSThread__main__ + 966
9 libSystem.B.dylib 0x0007a27e _pthread_start + 242
10 libSystem.B.dylib 0x0006f2a8 thread_start + 0
Thread 4:
0 libSystem.B.dylib 0x00025060 select$DARWIN_EXTSN + 20
1 CoreFoundation 0x0005edfc __CFSocketManager + 540
2 libSystem.B.dylib 0x0007a27e _pthread_start + 242
3 libSystem.B.dylib 0x0006f2a8 thread_start + 0
Thread 5:
0 libSystem.B.dylib 0x0007b19c __workq_kernreturn + 8
1 libSystem.B.dylib 0x0007a790 _pthread_wqthread + 536
2 libSystem.B.dylib 0x00073190 start_wqthread + 0
Thread 6:
0 libSystem.B.dylib 0x0007b19c __workq_kernreturn + 8
1 libSystem.B.dylib 0x0007a790 _pthread_wqthread + 536
2 libSystem.B.dylib 0x00073190 start_wqthread + 0
Thread 7:
0 libSystem.B.dylib 0x0007b19c __workq_kernreturn + 8
1 libSystem.B.dylib 0x0007a790 _pthread_wqthread + 536
2 libSystem.B.dylib 0x00073190 start_wqthread + 0
Thread 8:
0 Foundation 0x000eb1ec DYLD-STUB$$CFURLRequestGetURL + 0
1 Foundation 0x0002dab2 -[NSURLRequest URL] + 18
2 Foundation 0x0002d990 createCFRequest + 144
3 Foundation 0x000aed5e +[NSURLConnection sendSynchronousRequest:returningResponse:error:] + 30
4 AppSupport 0x00015c5e downloadDictionary + 122
5 AppSupport 0x00015d5c -[PEPServiceConfiguration _updateDefaults:] + 76
6 Foundation 0x0000b222 -[NSThread main] + 38
7 Foundation 0x000042d6 __NSThread__main__ + 966
8 libSystem.B.dylib 0x0007a27e _pthread_start + 242
9 libSystem.B.dylib 0x0006f2a8 thread_start + 0
Thread 0 crashed with ARM Thread State:
r0: 0x004ade00 r1: 0x3303ae3b r2: 0x00000000 r3: 0x00000000
r4: 0x004aef20 r5: 0x0017dd8d r6: 0x00000000 r7: 0x2fffea2c
r8: 0x004ad560 r9: 0x2fffe8e4 r10: 0x0017e45f r11: 0x0017e453
ip: 0x00000000 sp: 0x2fffea14 lr: 0x0003d181 pc: 0x0003d196
cpsr: 0x600f0030
Binary Images:
........
非常感谢任何建议！
答案 0 :(得分：0)
我对此没有经验，但无论如何我都会有一个裂缝，因为它很有趣： - ）
我的猜测是线程8或更多可能线程3（mach_msg_trap？）触发了一些回调给应用程序然后尝试在nil对象上执行选择器。
只是猜测： - ）
答案 1 :(得分：0)
当HTTP请求从服务器返回并且正在与已经解除分配（或设置为nil）的对象进行交互时，HTTP请求可能会命中您的委托。尝试与解除分配的对象进行交互是导致EXC_BAD_ACCESS崩溃的主要原因。