我在App Store中有一个应用程序，它在iOS 10上运行良好。但是最近我收到了很多崩溃报告，并且所有日志都指向KVO崩溃，所有这些都发生在iOS 11上，下面是崩溃日志。
.pdf崩溃已超过200次崩溃，所有都是相同的日志。我无法重现这次崩溃，并且有点如何继续下去。我的整个项目是用Objective-C编写的，当我检查时，我只使用一种方法来使用KVO。下面是我如何使用它的方法模型。
Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x181e7a858 object_isClass + 16
1 Foundation 0x1836d72bc KVO_IS_RETAINING_ALL_OBSERVERS_OF_THIS_OBJECT_IF_IT_CRASHES_AN_OBSERVER_WAS_OVERRELEASED_OR_SMASHED + 68
2 Foundation 0x1836d5ad0 NSKeyValueWillChangeWithPerThreadPendingNotifications + 300
3 QuartzCore 0x186e35024 -[CALayer setDelegate:] + 108
4 UIKit 0x18c866698 -[UIView dealloc] + 708
5 UIKit 0x18c93f08c -[UILabel dealloc] + 192
6 libobjc.A.dylib 0x181e9a13c (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 844
7 UIKit 0x18c86678c -[UIView dealloc] + 952
8 CoreFoundation 0x182b911b4 -[__NSArrayM dealloc] + 140
9 libobjc.A.dylib 0x181e9a13c (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 844
10 UIKit 0x18c86678c -[UIView dealloc] + 952
11 libobjc.A.dylib 0x181e9a13c (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 844
12 UIKit 0x18c86678c -[UIView dealloc] + 952
13 libobjc.A.dylib 0x181e9a13c (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 844
14 UIKit 0x18c86678c -[UIView dealloc] + 952
15 UIKit 0x18cbd3248 -[UINavigationTransitionView dealloc] + 96
16 libobjc.A.dylib 0x181e9a13c (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 844
17 UIKit 0x18c86678c -[UIView dealloc] + 952
18 UIKit 0x18cbd319c -[UILayoutContainerView dealloc] + 60
19 libobjc.A.dylib 0x181e9a13c (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 844
20 CoreFoundation 0x182b88aac _CFAutoreleasePoolPop + 28
21 UIKit 0x18cc705fc _prepareForCAFlush + 132
22 UIKit 0x18cb555b8 _afterCACommitHandler + 236
23 CoreFoundation 0x182c6a910 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 32
24 CoreFoundation 0x182c68238 __CFRunLoopDoObservers + 412
25 CoreFoundation 0x182c68884 __CFRunLoopRun + 1436
26 CoreFoundation 0x182b88da8 CFRunLoopRunSpecific + 552
27 GraphicsServices 0x184b6b020 GSEventRunModal + 100
28 UIKit 0x18cb6978c UIApplicationMain + 236
29 MyApp 0x1009bf748 main (main.m:14)
30 libdyld.dylib 0x182619fc0 start + 4
我在项目中添加的所有其他观察者都是NSNotificationCenter观察者，是否会导致此类崩溃日志？