Logging IOS8应用程序崩溃EXC-Crash（SIGABRT）

我正在创建一个应用程序——目前为止它还可以运行，但“有时”它会崩溃。它可能在1小时、2小时、10分钟后发生。我不知道问题出在哪里。有人能帮我吗？以下是崩溃日志：

Incident Identifier: 41C72E45-2D38-47AF-89A7-1666846B4D13
CrashReporter Key:   7b23272467a57c9e510d7991d4e1de0661d90c5d
Hardware Model:      iPhone7,2
Process:             TQ [15248]
Path:                /private/var/mobile/Containers/Bundle/Application/F50B5713-F039-48A5-A1F4-E27ACE8FE2B9/TQ.app/TQ
Identifier:          com.tq.tq
Version:             5.2995 (5.30)
Code Type:           ARM-64 (Native)
Parent Process:      launchd [1]

Date/Time:           2015-05-10 21:14:03.574 +0200
Launch Time:         2015-05-10 20:58:33.167 +0200
OS Version:          iOS 8.3 (12F70)
Report Version:      105

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Triggered by Thread:  0

Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0   libsystem_kernel.dylib          0x0000000198237270 0x19821c000 + 111216
1   libsystem_pthread.dylib         0x00000001982d516c 0x1982d0000 + 20844
2   libsystem_c.dylib               0x00000001981aeb14 0x19814c000 + 404244
3   libsystem_malloc.dylib          0x00000001982723e0 0x198260000 + 74720
4   libsystem_malloc.dylib          0x00000001982712f4 0x198260000 + 70388
5   CoreFoundation                  0x000000018615a44c 0x186154000 + 25676
6   CoreFoundation                  0x0000000186159f88 0x186154000 + 24456
7   CoreFoundation                  0x00000001862317d4 0x186154000 + 907220
8   CoreFoundation                  0x000000018615d2d0 0x186154000 + 37584
9   GraphicsServices                0x000000018f9736f8 0x18f968000 + 46840
10  UIKit                           0x000000018ad22fa8 0x18acac000 + 487336
11  TQ                              0x00000001000c99ac 0x100010000 + 760236
12  libdyld.dylib                   0x000000019811ea04 0x19811c000 + 10756

Thread 1 name:  Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0   libsystem_kernel.dylib          0x000000019821cc24 0x19821c000 + 3108
1   libdispatch.dylib               0x0000000198101e6c 0x1980f0000 + 73324
2   libdispatch.dylib               0x00000001980f3998 0x1980f0000 + 14744

Thread 2 name:  GAIThread
Thread 2:
0   libsystem_kernel.dylib          0x000000019821ce0c 0x19821c000 + 3596
1   libsystem_kernel.dylib          0x000000019821cc84 0x19821c000 + 3204
2   CoreFoundation                  0x0000000186233720 0x186154000 + 915232
3   CoreFoundation                  0x0000000186231674 0x186154000 + 906868
4   CoreFoundation                  0x000000018615d2d0 0x186154000 + 37584
5   Foundation                      0x00000001870954c4 0x187088000 + 54468
6   Foundation                      0x00000001870ef80c 0x187088000 + 423948
7   TrackQuiz                       0x0000000100230508 0x100010000 + 2229512
8   Foundation                      0x000000018717ddb4 0x187088000 + 1007028
9   libsystem_pthread.dylib         0x00000001982d3dc4 0x1982d0000 + 15812
10  libsystem_pthread.dylib         0x00000001982d3d20 0x1982d0000 + 15648
11  libsystem_pthread.dylib         0x00000001982d0ef4 0x1982d0000 + 3828

Thread 3 name:  com.apple.coreaudio.AQClient
Thread 3:
0   libsystem_kernel.dylib          0x000000019821ce0c 0x19821c000 + 3596
1   libsystem_kernel.dylib          0x000000019821cc84 0x19821c000 + 3204
2   CoreFoundation                  0x0000000186233720 0x186154000 + 915232
3   CoreFoundation                  0x0000000186231674 0x186154000 + 906868
4   CoreFoundation                  0x000000018615d2d0 0x186154000 + 37584
5   AudioToolbox                    0x000000018577a278 0x185740000 + 238200
6   AudioToolbox                    0x000000018576c51c 0x185740000 + 181532
7   libsystem_pthread.dylib         0x00000001982d3dc4 0x1982d0000 + 15812
8   libsystem_pthread.dylib         0x00000001982d3d20 0x1982d0000 + 15648
9   libsystem_pthread.dylib         0x00000001982d0ef4 0x1982d0000 + 3828

Thread 4 name:  com.apple.NSURLConnectionLoader
Thread 4:
0   libsystem_kernel.dylib          0x000000019821ce0c 0x19821c000 + 3596
1   libsystem_kernel.dylib          0x000000019821cc84 0x19821c000 + 3204
2   CoreFoundation                  0x0000000186233720 0x186154000 + 915232
3   CoreFoundation                  0x0000000186231674 0x186154000 + 906868
4   CoreFoundation                  0x000000018615d2d0 0x186154000 + 37584
5   CFNetwork                       0x0000000185c3e890 0x185ba0000 + 649360
6   Foundation                      0x000000018717ddb4 0x187088000 + 1007028
7   libsystem_pthread.dylib         0x00000001982d3dc4 0x1982d0000 + 15812
8   libsystem_pthread.dylib         0x00000001982d3d20 0x1982d0000 + 15648
9   libsystem_pthread.dylib         0x00000001982d0ef4 0x1982d0000 + 3828

Thread 5 name:  com.apple.CFSocket.private
Thread 5:
0   libsystem_kernel.dylib          0x0000000198237498 0x19821c000 + 111768
1   CoreFoundation                  0x0000000186239124 0x186154000 + 938276
2   libsystem_pthread.dylib         0x00000001982d3dc4 0x1982d0000 + 15812
3   libsystem_pthread.dylib         0x00000001982d3d20 0x1982d0000 + 15648
4   libsystem_pthread.dylib         0x00000001982d0ef4 0x1982d0000 + 3828

Thread 6:
0   libsystem_kernel.dylib          0x000000019821ce0c 0x19821c000 + 3596
1   libsystem_kernel.dylib          0x000000019821cc84 0x19821c000 + 3204
2   CoreFoundation                  0x0000000186233720 0x186154000 + 915232
3   CoreFoundation                  0x0000000186231674 0x186154000 + 906868
4   CoreFoundation                  0x000000018615d2d0 0x186154000 + 37584
5   CoreFoundation                  0x00000001861af358 0x186154000 + 373592
6   CoreMotion                      0x0000000186b68364 0x186b20000 + 295780
7   libsystem_pthread.dylib         0x00000001982d3dc4 0x1982d0000 + 15812
8   libsystem_pthread.dylib         0x00000001982d3d20 0x1982d0000 + 15648
9   libsystem_pthread.dylib         0x00000001982d0ef4 0x1982d0000 + 3828

Thread 7 name:  WebThread
Thread 7:
0   libsystem_kernel.dylib          0x000000019821ce0c 0x19821c000 + 3596
1   libsystem_kernel.dylib          0x000000019821cc84 0x19821c000 + 3204
2   CoreFoundation                  0x0000000186233720 0x186154000 + 915232
3   CoreFoundation                  0x0000000186231674 0x186154000 + 906868
4   CoreFoundation                  0x000000018615d2d0 0x186154000 + 37584
5   WebCore                         0x0000000194b58890 0x194aa8000 + 723088
6   libsystem_pthread.dylib         0x00000001982d3dc4 0x1982d0000 + 15812
7   libsystem_pthread.dylib         0x00000001982d3d20 0x1982d0000 + 15648
8   libsystem_pthread.dylib         0x00000001982d0ef4 0x1982d0000 + 3828

Thread 8 name:  JavaScriptCore::BlockFree
Thread 8:
0   libsystem_kernel.dylib          0x0000000198237078 0x19821c000 + 110712
1   libsystem_pthread.dylib         0x00000001982d2f28 0x1982d0000 + 12072
2   libc++.1.dylib                  0x000000019721ccac 0x197214000 + 36012
3   JavaScriptCore                  0x0000000187751620 0x187738000 + 103968
4   JavaScriptCore                  0x000000018774cb9c 0x187738000 + 84892
5   libsystem_pthread.dylib         0x00000001982d3dc4 0x1982d0000 + 15812
6   libsystem_pthread.dylib         0x00000001982d3d20 0x1982d0000 + 15648
7   libsystem_pthread.dylib         0x00000001982d0ef4 0x1982d0000 + 3828

Thread 9 name:  JavaScriptCore::Marking
Thread 9:
0   libsystem_kernel.dylib          0x0000000198237078 0x19821c000 + 110712
1   libsystem_pthread.dylib         0x00000001982d2f28 0x1982d0000 + 12072
2   libc++.1.dylib                  0x000000019721ccac 0x197214000 + 36012
3   JavaScriptCore                  0x00000001879faedc 0x187738000 + 2895580
4   JavaScriptCore                  0x00000001879faf80 0x187738000 + 2895744
5   JavaScriptCore                  0x000000018774cb9c 0x187738000 + 84892
6   libsystem_pthread.dylib         0x00000001982d3dc4 0x1982d0000 + 15812
7   libsystem_pthread.dylib         0x00000001982d3d20 0x1982d0000 + 15648
8   libsystem_pthread.dylib         0x00000001982d0ef4 0x1982d0000 + 3828

Thread 10 name:  WebCore: CFNetwork Loader
Thread 10:
0   libsystem_kernel.dylib          0x000000019821ce0c 0x19821c000 + 3596
1   libsystem_kernel.dylib          0x000000019821cc84 0x19821c000 + 3204
2   CoreFoundation                  0x0000000186233720 0x186154000 + 915232
3   CoreFoundation                  0x0000000186231674 0x186154000 + 906868
4   CoreFoundation                  0x000000018615d2d0 0x186154000 + 37584
5   WebCore                         0x0000000194b8c9ac 0x194aa8000 + 936364
6   JavaScriptCore                  0x000000018774cb9c 0x187738000 + 84892
7   libsystem_pthread.dylib         0x00000001982d3dc4 0x1982d0000 + 15812
8   libsystem_pthread.dylib         0x00000001982d3d20 0x1982d0000 + 15648
9   libsystem_pthread.dylib         0x00000001982d0ef4 0x1982d0000 + 3828

Thread 11 name:  WebCore: LocalStorage
Thread 11:
0   libsystem_kernel.dylib          0x0000000198237078 0x19821c000 + 110712
1   libsystem_pthread.dylib         0x00000001982d2f28 0x1982d0000 + 12072
2   JavaScriptCore                  0x00000001877517bc 0x187738000 + 104380
3   WebCore                         0x00000001956e232c 0x194aa8000 + 12821292
4   WebCore                         0x0000000194c54ff8 0x194aa8000 + 1757176
5   JavaScriptCore                  0x000000018774cb9c 0x187738000 + 84892
6   libsystem_pthread.dylib         0x00000001982d3dc4 0x1982d0000 + 15812
7   libsystem_pthread.dylib         0x00000001982d3d20 0x1982d0000 + 15648
8   libsystem_pthread.dylib         0x00000001982d0ef4 0x1982d0000 + 3828

Thread 12 name:  AVAudioSession Notify Thread
Thread 12:
0   libsystem_kernel.dylib          0x000000019821ce0c 0x19821c000 + 3596
1   libsystem_kernel.dylib          0x000000019821cc84 0x19821c000 + 3204
2   CoreFoundation                  0x0000000186233720 0x186154000 + 915232
3   CoreFoundation                  0x0000000186231674 0x186154000 + 906868
4   CoreFoundation                  0x000000018615d2d0 0x186154000 + 37584
5   libAVFAudio.dylib               0x0000000184bd902c 0x184bc0000 + 102444
6   libAVFAudio.dylib               0x0000000184bcba0c 0x184bc0000 + 47628
7   libsystem_pthread.dylib         0x00000001982d3dc4 0x1982d0000 + 15812
8   libsystem_pthread.dylib         0x00000001982d3d20 0x1982d0000 + 15648
9   libsystem_pthread.dylib         0x00000001982d0ef4 0x1982d0000 + 3828

Thread 13 name:  com.apple.coremedia.player.remote
Thread 13:
0   libsystem_kernel.dylib          0x000000019821ce0c 0x19821c000 + 3596
1   libsystem_kernel.dylib          0x000000019821cc84 0x19821c000 + 3204
2   MediaToolbox                    0x000000018874c848 0x188740000 + 51272
3   CoreMedia                       0x0000000186a979ac 0x186a5c000 + 244140
4   libsystem_pthread.dylib         0x00000001982d3dc4 0x1982d0000 + 15812
5   libsystem_pthread.dylib         0x00000001982d3d20 0x1982d0000 + 15648
6   libsystem_pthread.dylib         0x00000001982d0ef4 0x1982d0000 + 3828

Thread 14:
0   libsystem_kernel.dylib          0x0000000198237c78 0x19821c000 + 113784
1   libsystem_pthread.dylib         0x00000001982d12d8 0x1982d0000 + 4824
2   libsystem_pthread.dylib         0x00000001982d0eec 0x1982d0000 + 3820

Thread 15:
0   libsystem_kernel.dylib          0x0000000198237c78 0x19821c000 + 113784
1   libsystem_pthread.dylib         0x00000001982d12d8 0x1982d0000 + 4824
2   libsystem_pthread.dylib         0x00000001982d0eec 0x1982d0000 + 3820

Thread 16:
0   libsystem_kernel.dylib          0x0000000198237c78 0x19821c000 + 113784
1   libsystem_pthread.dylib         0x00000001982d12d8 0x1982d0000 + 4824
2   libsystem_pthread.dylib         0x00000001982d0eec 0x1982d0000 + 3820

Thread 17:
0   libsystem_kernel.dylib          0x0000000198237c78 0x19821c000 + 113784
1   libsystem_pthread.dylib         0x00000001982d12d8 0x1982d0000 + 4824
2   libsystem_pthread.dylib         0x00000001982d0eec 0x1982d0000 + 3820

Thread 18:
0   libsystem_kernel.dylib          0x0000000198237c78 0x19821c000 + 113784
1   libsystem_pthread.dylib         0x00000001982d12d8 0x1982d0000 + 4824
2   libsystem_pthread.dylib         0x00000001982d0eec 0x1982d0000 + 3820

Thread 19 name:  com.apple.coremedia.player.async
Thread 19:
0   libsystem_kernel.dylib          0x000000019821ce48 0x19821c000 + 3656
1   libdispatch.dylib               0x00000001980fff3c 0x1980f0000 + 65340
2   MediaToolbox                    0x0000000188744b48 0x188740000 + 19272
3   CoreMedia                       0x0000000186a979ac 0x186a5c000 + 244140
4   libsystem_pthread.dylib         0x00000001982d3dc4 0x1982d0000 + 15812
5   libsystem_pthread.dylib         0x00000001982d3d20 0x1982d0000 + 15648
6   libsystem_pthread.dylib         0x00000001982d0ef4 0x1982d0000 + 3828

Thread 0 crashed with ARM Thread State (64-bit):
    x0: 0x0000000000000000   x1: 0x0000000000000000   x2: 0x0000000000000000   x3: 0x0000000000000000
    x4: 0x0000000000000000   x5: 0x0000000000000000   x6: 0x0000000000000001   x7: 0x0000000000000000
    x8: 0x0000000008000000   x9: 0x0000000004000000  x10: 0x0000000000000000  x11: 0x0000000000000000
   x12: 0x0000000000000035  x13: 0x000000017b700560  x14: 0x000000017056e1c0  x15: 0x00000001745720c0
   x16: 0x0000000000000148  x17: 0x000000018acb5674  x18: 0x0000000000000000  x19: 0x0000000000000006
   x20: 0x000000019c10f310  x21: 0x0000000000000001  x22: 0x0000000198279036  x23: 0x000000017b700550
   x24: 0x0000000000000000  x25: 0x0000000000000001  x26: 0x000000017b700550  x27: 0x000000019873df50
   x28: 0x000000016e836000  fp: 0x000000016fdee220   lr: 0x00000001982d5170
    sp: 0x000000016fdee200   pc: 0x0000000198237270 cpsr: 0x00000000

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我会说在调试器下运行调试版本一两个小时，直到它崩溃并开始调试

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通常要做的事情是减少撞车的机会：打开所有合理的警告并修复警告的原因。使用静态分析器并修复它发现的所有问题。创建大量有用的单元测试并检查它们是否都成功。确保您了解多线程的后果，并在需要时使用顺序队列或同步

你说得对！但在调试模式下运行应用程序时，没有出现错误。我也没有警告。你能告诉我“打开所有合理警告”的最佳实践吗