ios - UIKit 在 iOS 中崩溃

Question

我最近从我的应用程序中收到了一份崩溃日志，该日志已发布给试点用户。当我查看 Xcode 时，崩溃日志指向 UIKit: -[UIEventFetcher _receiveHIDEventInternal:] + 220 此问题不可重现，因此我有点困惑如何调试此崩溃或可能导致的原因它。下面是相同的崩溃日志。

OS Version:          iPhone OS 11.1.2 
Baseband Version:    n/a
Report Version:      104

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000030
VM Region Info: 0x30 is not in any region.  Bytes before following region: 4329832400
      REGION TYPE                      START - END             [ VSIZE] PRT/MAX SHRMOD  REGION DETAIL
      UNUSED SPACE AT START
--->  
      __TEXT                 0000000102140000-0000000102144000 [   16K] r-x/r-x SM=COW  ...My App]

Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [0]
Triggered by Thread:  1

Thread 0 name:
Thread 0:
0   CoreFoundation                  0x000000018597e1c8 -[__NSArrayM insertObject:atIndex:] + 1288 (NSArrayM_Common.h:278)
1   CoreFoundation                  0x000000018597de50 -[__NSArrayM insertObject:atIndex:] + 400 (NSArrayM_Common.h:256)
2   My App                  0x0000000102362bfc CLSExceptionRecordNSException + 404
3   My App                  0x00000001023628a0 CLSTerminateHandler() + 396
4   libc++abi.dylib                 0x0000000184cef54c std::__terminate(void (*)()) + 16 (cxa_handlers.cpp:66)
5   libc++abi.dylib                 0x0000000184cef158 __cxa_rethrow + 144 (cxa_exception.cpp:557)
6   libobjc.A.dylib                 0x0000000184d006e8 objc_exception_rethrow + 44 (objc-exception.mm:559)
7   CoreFoundation                  0x0000000185978024 CFRunLoopRunSpecific + 544 (CFRunLoop.c:3259)
8   GraphicsServices                0x000000018780ff84 GSEventRunModal + 100 (GSEvent.c:2245)
9   UIKit                           0x000000018ef4c2e8 UIApplicationMain + 208 (UIApplication.m:3949)
10  My App                  0x00000001021ff514 main + 92 (main.m:14)
11  libdyld.dylib                   0x000000018549a56c start + 4

Thread 1 name:
Thread 1 Crashed:
0   CoreFoundation                  0x000000018597e1c8 -[__NSArrayM insertObject:atIndex:] + 1288 (NSArrayM_Common.h:278)
1   CoreFoundation                  0x000000018597de50 -[__NSArrayM insertObject:atIndex:] + 400 (NSArrayM_Common.h:256)
2   UIKit                           0x000000018faab55c -[UIEventFetcher _receiveHIDEventInternal:] + 220 (UIEventFetcher.m:229)
3   IOKit                           0x0000000185d46170 __IOHIDEventSystemClientQueueCallback + 236 (IOHIDEventSystemClient.c:1037)
4   CoreFoundation                  0x0000000185a40010 __CFMachPortPerform + 188 (CFMachPort.c:689)
5   CoreFoundation                  0x0000000185a5a96c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 56 (CFRunLoop.c:1998)
6   CoreFoundation                  0x0000000185a5a070 __CFRunLoopDoSource1 + 440 (CFRunLoop.c:2135)
7   CoreFoundation                  0x0000000185a57b44 __CFRunLoopRun + 2196 (CFRunLoop.c:3150)
8   CoreFoundation                  0x0000000185977fb8 CFRunLoopRunSpecific + 436 (CFRunLoop.c:3245)
9   Foundation                      0x00000001863a16e4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304 (NSRunLoop.m:367)
10  Foundation                      0x00000001863c0afc -[NSRunLoop(NSRunLoop) runUntilDate:] + 96 (NSRunLoop.m:411)
11  UIKit                           0x000000018faab2f4 -[UIEventFetcher threadMain] + 136 (UIEventFetcher.m:436)
12  Foundation                      0x00000001864a2860 __NSThread__start__ + 996 (NSThread.m:1181)
13  libsystem_pthread.dylib         0x00000001856dc31c _pthread_body + 308 (pthread.c:740)
14  libsystem_pthread.dylib         0x00000001856dc1e8 _pthread_start + 312 (pthread.c:799)
15  libsystem_pthread.dylib         0x00000001856dac28 thread_start + 4

Thread 2 name:
Thread 2:
0   libsystem_kernel.dylib          0x00000001855aa670 write + 8
1   My App                  0x0000000102358d0c CLSSDKFileLog + 336
2   My App                  0x0000000102350338 CLSMachExceptionServer + 1148
3   libsystem_pthread.dylib         0x00000001856dc31c _pthread_body + 308 (pthread.c:740)
4   libsystem_pthread.dylib         0x00000001856dc1e8 _pthread_start + 312 (pthread.c:799)
5   libsystem_pthread.dylib         0x00000001856dac28 thread_start + 4

Thread 3 name:
Thread 3:
0   libsystem_kernel.dylib          0x00000001855a8bc4 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x00000001855a8a3c mach_msg + 72 (mach_msg.c:103)
2   CoreFoundation                  0x0000000185a59c74 __CFRunLoopServiceMachPort + 196 (CFRunLoop.c:2613)
3   CoreFoundation                  0x0000000185a57840 __CFRunLoopRun + 1424 (CFRunLoop.c:2969)
4   CoreFoundation                  0x0000000185977fb8 CFRunLoopRunSpecific + 436 (CFRunLoop.c:3245)
5   CFNetwork                       0x00000001860e2264 +[NSURLConnection(Loader) _resourceLoadLoop:] + 404 (NSURLConnection.mm:367)
6   Foundation                      0x00000001864a2860 __NSThread__start__ + 996 (NSThread.m:1181)
7   libsystem_pthread.dylib         0x00000001856dc31c _pthread_body + 308 (pthread.c:740)
8   libsystem_pthread.dylib         0x00000001856dc1e8 _pthread_start + 312 (pthread.c:799)
9   libsystem_pthread.dylib         0x00000001856dac28 thread_start + 4

Thread 4:
0   libsystem_kernel.dylib          0x00000001855c9150 __psynch_cvwait + 8
1   libsystem_pthread.dylib         0x00000001856ded30 _pthread_cond_wait$VARIANT$mp + 640 (pthread_cond.c:579)
2   libc++.1.dylib                  0x0000000184c82ea4 std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 24 (__threading_support:278)
3   JavaScriptCore                  0x000000018cd25b94 void std::__1::condition_variable_any::wait<std::__1::unique_lock<bmalloc::Mutex> >(std::__1::unique_lock<bmalloc::Mutex>&) + 96 (condition_variable:202)
4   JavaScriptCore                  0x000000018cd25abc bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop() + 172 (condition_variable:211)
5   JavaScriptCore                  0x000000018cd25e20 void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (*)(bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>*), bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>*> >(void*) + 44 (type_traits:4291)
6   libsystem_pthread.dylib         0x00000001856dc31c _pthread_body + 308 (pthread.c:740)
7   libsystem_pthread.dylib         0x00000001856dc1e8 _pthread_start + 312 (pthread.c:799)
8   libsystem_pthread.dylib         0x00000001856dac28 thread_start + 4

Thread 5 name:
Thread 5:
0   libsystem_kernel.dylib          0x00000001855a8bc4 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x00000001855a8a3c mach_msg + 72 (mach_msg.c:103)
2   CoreFoundation                  0x0000000185a59c74 __CFRunLoopServiceMachPort + 196 (CFRunLoop.c:2613)
3   CoreFoundation                  0x0000000185a57840 __CFRunLoopRun + 1424 (CFRunLoop.c:2969)
4   CoreFoundation                  0x0000000185977fb8 CFRunLoopRunSpecific + 436 (CFRunLoop.c:3245)
5   WebCore                         0x000000018d7ebe04 RunWebThread(void*) + 456 (WebCoreThread.mm:694)
6   libsystem_pthread.dylib         0x00000001856dc31c _pthread_body + 308 (pthread.c:740)
7   libsystem_pthread.dylib         0x00000001856dc1e8 _pthread_start + 312 (pthread.c:799)
8   libsystem_pthread.dylib         0x00000001856dac28 thread_start + 4

Thread 6:
0   libsystem_pthread.dylib         0x00000001856dac1c start_wqthread + 0

Thread 7:
0   libsystem_kernel.dylib          0x00000001855c9dbc __workq_kernreturn + 8
1   libsystem_pthread.dylib         0x00000001856db134 _pthread_wqthread + 1288 (pthread.c:0)
2   libsystem_pthread.dylib         0x00000001856dac20 start_wqthread + 4

Thread 8:
0   libsystem_pthread.dylib         0x00000001856dac1c start_wqthread + 0

Thread 1 crashed with ARM Thread State (64-bit):
    x0: 0x0000000000000000   x1: 0x0000000000000000   x2: 0x0000000000000000   x3: 0x0000000000000000
    x4: 0x0000000000000000   x5: 0x0000000000000000   x6: 0x0000000000000001   x7: 0x0000000000000000
    x8: 0x0000000000000000   x9: 0x0000000000000006  x10: 0x0000000000000000  x11: 0x00000000fffffff0
   x12: 0x0000000000000058  x13: 0x00000000fffffff0  x14: 0x0000000185615f89  x15: 0x000000000000004d
   x16: 0x00000001856d1de0  x17: 0x000000018597dcc0  x18: 0x0000000000000000  x19: 0x0000000000000006
   x20: 0x000000018fc6dd6a  x21: 0x0000000000000000  x22: 0x0000000217cf4450  x23: 0x0000000000000000
   x24: 0x0000000000000000  x25: 0x00000001c0ba4d00  x26: 0x00000001c4240550  x27: 0x00000001b489518c
   x28: 0x0000000000000006   fp: 0x000000016df74c20   lr: 0x000000018597de50
    sp: 0x000000016df74b80   pc: 0x000000018597e1c8 cpsr: 0x20000000

感谢任何帮助。

Answer 1

一位用户的一部手机发生一次崩溃？........

将其归结为“发生的事情”并继续 - 您不可能追踪手机中发生的所有可能的问题 - 至少，如果您要完成应用程序并向公众发布，则不可能.

如果你真的“必须”找到这个，那么你应该找更多的测试人员，这样它就可以被复制。

一次性问题不值得这么麻烦。