什么'；iOS系统崩溃的根本原因是什么？

在我使用flurry在我的应用程序中收集崩溃报告后，我发现了很多类似这样的崩溃：

0   libobjc.A.dylib                     0x3340d6ba _objc_retain + 9
1   libsystem_network.dylib             0x33a8a32b <redacted> + 1402
2   libsystem_dnssd.dylib               0x33a07a81 <redacted> + 308
3   libsystem_dnssd.dylib               0x33a065bb _DNSServiceProcessResult + 550
4   libdispatch.dylib                   0x33964253 <redacted> + 626
5   libdispatch.dylib                   0x339553f9 <redacted> + 212
6   libdispatch.dylib                   0x3395b48f <redacted> + 502
7   libdispatch.dylib                   0x3395609d <redacted> + 84
8   libdispatch.dylib                   0x3395cba1 <redacted> + 320
9   libdispatch.dylib                   0x3395dcd7 <redacted> + 94
10  libsystem_pthread.dylib             0x33ab4e31 __pthread_wqthread + 668
11  libsystem_pthread.dylib             0x33ab4b84 _start_wqthread + 8

0 libobjc.A.dylib 0x3340d6ba\u objc\u retain+9
1 libsystem_network.dylib 0x33a8a32b+1402
2 libsystem_dnssd.dylib 0x33a07a81+308
3 libsystem_dnssd.dylib 0x33a065bb_DNSServiceProcessResult+550
4 libdispatch.dylib 0x33964253+626
5 libdispatch.dylib 0x339553f9+212
6 libdispatch.dylib 0x3395b48f+502
7 libdispatch.dylib 0x3395609d+84
8 libdispatch.dylib 0x3395cba1+320
9 libdispatch.dylib 0x3395dcd7+94
10 libsystem_pthread.dylib 0x33ab4e31_uupthread_wqthread+668
11 libsystem_pthread.dylib 0x33ab4b84_start_wqthread+8

还有另一次坠机：

0   CoreFoundation                      0x2dde782e _CFArrayGetCount + 5
1   WebCore                             0x3610dddd -[WAKView subviews] + 36
2   WebCore                             0x3610dd99 -[WAKView viewWillDraw] + 20
3   WebCore                             0x3610dc85 <redacted> + 64
4   QuartzCore                          0x30348e3b <redacted> + 350
5   QuartzCore                          0x30348ccd <redacted> + 16
6   QuartzCore                          0x303486df <redacted> + 230
7   QuartzCore                          0x303484ef <redacted> + 314
8   UIKit                               0x306c842b <redacted> + 126
9   CoreFoundation                      0x2de7f2a5 <redacted> + 20
10  CoreFoundation                      0x2de7cc49 <redacted> + 284
11  CoreFoundation                      0x2de7cf8b <redacted> + 730
12  CoreFoundation                      0x2dde7f4f _CFRunLoopRunSpecific + 522
13  CoreFoundation                      0x2dde7d33 _CFRunLoopRunInMode + 106
14  GraphicsServices                    0x32d40663 _GSEventRunModal + 138
15  UIKit                               0x3073316d _UIApplicationMain + 1136

0 CoreFoundation 0x2dde782e\u CFArrayGetCount+5
1网络核心0x3610dddd-[WAKView子视图]+36
2个网络核心0x3610dd99-[WAKView视图将绘制]+20
3网络核心0x3610dc85+64
4夸脱芯0x30348e3b+350
5夸脱芯0x30348ccd+16
6夸脱芯0x303486df+230
7夸脱芯0x303484ef+314
8 UIKit 0x306c842b+126
9芯基础0x2de7f2a5+20
10芯基础0x2de7cc49+284
11芯基础0x2de7cf8b+730
12 CoreFoundation 0x2dde7f4f\u CFRunLoopRunSpecific+522
13 CoreFoundation 0x2dde7d33\u CFRUNLOOPSRUNINMODE+106
14图形服务0x32d40663 _GSEventRunModal+138
15 UIKit 0x307316D_UIApplicationMain+1136

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他们的根本原因是什么？我在谷歌上看到了很多关于它们的信息，但我找不到任何有用的信息。

错误信息是什么？不要对非HTML、JavaScript或CSS格式的代码使用堆栈片段。堆栈片段用于在HTML/JavaScript/CSS中创建可运行的代码片段。改为使用代码示例（带有{}图标）。没有错误消息，只是崩溃。如果尚未将压缩后的dSym文件夹上载到Flurry，则可能需要将堆栈跟踪符号取消。希望这将显示一些更有用的错误消息。有时即使在去符号化之后，崩溃错误仍然不是很有用。谢谢，我已经做了，但是崩溃堆栈似乎不是来自应用程序的代码，而是来自webkit和DNSService。