我的应用使用背景位置进行GPS更新。我已经注册了它的背景位置更新，当它在后台运行时，它总是像这样崩溃。
由于我没有编写大部分代码，我真的不知道发生了什么。
我检查了内存分配，但似乎没有太多问题。这是一份崩溃报告：
Incident Identifier: 39F6F622-1274-4B6C-BA19-32D10E04E309
CrashReporter Key: 4757f4c5e5f009daf18eb0c512f729356c3e5de4
Hardware Model: iPhone3,1
Process: Get Off Now! [3040]
Path: /var/mobile/Applications/43D41F77-B225-4F47-AFB0-D2F2E00E18DF/Get Off Now!.app/Get Off Now!
Identifier: Get Off Now!
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2010-12-22 13:31:29.293 +0800
OS Version: iPhone OS 4.1 (8B117)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000d
Crashed Thread: 0
Thread 0 Crashed:
0 libobjc.A.dylib 0x000027d8 objc_msgSend + 16
1 CoreFoundation 0x000042ae CFRetain + 62
2 CoreFoundation 0x0005ab58 CFMessagePortInvalidate + 304
3 CoreFoundation 0x0005b05e CFMessagePortIsValid + 42
4 CoreLocation 0x000030f8 CLClientIsValid + 12
5 CoreLocation 0x00004b10 CLClientSendAndCache(__CLClient*, CLDaemonCommType, void*, int, unsigned char, unsigned char) + 40
6 CoreLocation 0x000051cc CLClientHandleWatchdogTimerExpiry(__CFRunLoopTimer*, void*) + 24
7 CoreFoundation 0x000567f4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 8
8 CoreFoundation 0x000562a6 __CFRunLoopDoTimer + 854
9 CoreFoundation 0x0002779e __CFRunLoopRun + 1082
10 CoreFoundation 0x00027270 CFRunLoopRunSpecific + 224
11 CoreFoundation 0x00027178 CFRunLoopRunInMode + 52
12 GraphicsServices 0x000045ec GSEventRunModal + 108
13 GraphicsServices 0x00004698 GSEventRun + 56
14 UIKit 0x0000411c -[UIApplication _run] + 396
15 UIKit 0x00002128 UIApplicationMain + 664
16 Get Off Now! 0x00002406 0x1000 + 5126
17 Get Off Now! 0x000023d0 0x1000 + 5072
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 0x00000cf4 semaphore_wait_signal_trap + 8
1 libSystem.B.dylib 0x0002e4ee semaphore_wait_signal + 2
2 libSystem.B.dylib 0x00002ae4 pthread_mutex_lock + 248
3 WebCore 0x00002620 _WebTryThreadLock(bool) + 140
4 WebCore 0x00002566 WebRunLoopLock(__CFRunLoopObserver*, unsigned long, void*) + 18
5 CoreFoundation 0x00030236 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 10
6 CoreFoundation 0x000300aa __CFRunLoopDoObservers + 406
7 CoreFoundation 0x000276c0 __CFRunLoopRun + 860
8 CoreFoundation 0x00027270 CFRunLoopRunSpecific + 224
9 CoreFoundation 0x00027178 CFRunLoopRunInMode + 52
10 WebCore 0x000024e2 RunWebThread(void*) + 362
11 libSystem.B.dylib 0x0007a27e _pthread_start + 242
12 libSystem.B.dylib 0x0006f2a8 thread_start + 0
Thread 3:
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 4:
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 0 crashed with ARM Thread State:
r0: 0x001a01c0 r1: 0x33024270 r2: 0x00000005 r3: 0x3002d7c9
r4: 0x00000005 r5: 0x3e1af5e4 r6: 0x00000017 r7: 0x2fffeac0
r8: 0x00000004 r9: 0x001fc098 r10: 0x00855864 r11: 0x2fffeb48
ip: 0x3e19c3f0 sp: 0x2fffeaa8 lr: 0x307fc2b5 pc: 0x3002d7d8
cpsr: 0x20000030
这是崩溃的另一种方式;它看起来是一样的，除了它长时间使用100％的CPU：
Incident Identifier: 61B42F36-021F-48D2-B180-112527BAE5CF
CrashReporter Key: 4757f4c5e5f009daf18eb0c512f729356c3e5de4
Hardware Model: iPhone3,1
Process: Get Off Now! [3751]
Path: /var/mobile/Applications/43D41F77-B225-4F47-AFB0-D2F2E00E18DF/Get Off Now!.app/Get Off Now!
Identifier: Get Off Now!
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2010-12-23 13:06:50.363 +0800
OS Version: iPhone OS 4.1 (8B117)
Report Version: 104
Exception Type: 00000020
Exception Codes: 0x8badf00d
Highlighted Thread: 0
Application Specific Information:
Get Off Now![3751] has active assertions beyond permitted time:
{(
<SBProcessAssertion: 0xca2a8a0> identifier: CoreLocationRegistration process: Get Off Now![3751] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:3751 preventSuspend preventIdleSleep
)}
Elapsed total CPU time (seconds): 600.010 (user 19.350, system 580.660), 100% CPU
Elapsed application CPU time (seconds): 575.320, 96% CPU
Thread 0:
0 libSystem.B.dylib 0x00004f0c OSSpinLockLock + 44
1 CoreFoundation 0x0005aa42 CFMessagePortInvalidate + 26
2 CoreFoundation 0x0005b05e CFMessagePortIsValid + 42
3 CoreLocation 0x000030f8 CLClientIsValid + 12
4 CoreLocation 0x00004b10 CLClientSendAndCache(__CLClient*, CLDaemonCommType, void*, int, unsigned char, unsigned char) + 40
5 CoreLocation 0x000051cc CLClientHandleWatchdogTimerExpiry(__CFRunLoopTimer*, void*) + 24
6 CoreFoundation 0x000567f4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 8
7 CoreFoundation 0x000562a6 __CFRunLoopDoTimer + 854
8 CoreFoundation 0x0002779e __CFRunLoopRun + 1082
9 CoreFoundation 0x00027270 CFRunLoopRunSpecific + 224
10 CoreFoundation 0x00027178 CFRunLoopRunInMode + 52
11 GraphicsServices 0x000045ec GSEventRunModal + 108
12 GraphicsServices 0x00004698 GSEventRun + 56
13 UIKit 0x0000411c -[UIApplication _run] + 396
14 UIKit 0x00002128 UIApplicationMain + 664
15 Get Off Now! 0x000022de main (main.m:13)
16 Get Off Now! 0x000022a8 start + 32
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
Unknown thread crashed with unknown flavor: 5, state_count: 1
答案 0 :(得分：1)
我认为你需要检查一些由其他线程发布的对象，但它们是由主线程访问的。我遇到过这样的事情，因为我访问了一些已经发布的对象。
答案 1 :(得分：0)
我生成了完全相同的崩溃日志。我有一个主线程，它使用NSOperationQueue生成数据下载线程，然后在完成时使用performSelectorOnMainThread。
在我的didupdatelocation方法中，我在数组中循环，在某些情况下启动本地通知。它似乎在本地通知的SECOND实例上失败（对于相同的数组项），但我不能确定。我确实试过象征日志，但4.2.1中有一些丢失的文件错误，所以我复制了4.2中的符号，并且无法使用atos（但这可能是我的错）。
昨晚，我做了以下更改，似乎所有这些都得到了解决：
1）将所有self.locationManager表示法更改为只是locationManager
2）从appdelegate中的dealloc方法中删除了所有内容（除了super）