我们已将应用发布到AppStore，并在更新后尝试登录后崩溃。我们一直严重依赖其中的CoreData数据库，我们认为这是崩溃的原因。但是，我无法从设备中获取任何有价值的信息，而只是包含一些线程信息的崩溃日志。外观如下：
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0xd0000008
Crashed Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libobjc.A.dylib 0x32b3e5b0 objc_msgSend + 16
1 Foundation 0x337cbd18 -[NSError dealloc] + 56
2 libobjc.A.dylib 0x32b40484 (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 164
3 CoreFoundation 0x31bc843c _CFAutoreleasePoolPop + 12
4 Foundation 0x337ccf76 -[NSAutoreleasePool drain] + 118
5 CoreData 0x32f6d4ae -[NSManagedObjectContext save:] + 1206
6 ourapp 0x0012fbf8 0xba000 + 482296
7 CoreData 0x32f70bbe developerSubmittedBlockToNSManagedObjectContextPerform + 86
8 CoreData 0x32f70cee -[NSManagedObjectContext performBlockAndWait:] + 90
9 ourapp 0x0012fb4c 0xba000 + 482124
10 ourapp 0x000c4e08 0xba000 + 44552
11 ourapp 0x000cced4 0xba000 + 77524
12 ourapp 0x000db50a 0xba000 + 136458
13 ourapp 0x0014c41a 0xba000 + 599066
14 Foundation 0x33893ef2 __65-[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]_block_invoke_0 + 14
15 Foundation 0x337d39ec -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:] + 196
16 Foundation 0x337d3908 -[NSURLConnectionInternal _withActiveConnectionAndDelegate:] + 56
17 CFNetwork 0x38da65dc ___delegate_didFinishLoading_block_invoke_0 + 24
18 CFNetwork 0x38da5cc8 ___withDelegateAsync_block_invoke_0 + 52
19 CFNetwork 0x38dce130 ___performAsync_block_invoke_068 + 16
20 CoreFoundation 0x31bcb74a CFArrayApplyFunction + 174
21 CFNetwork 0x38dce58e RunloopBlockContext::perform() + 70
22 CFNetwork 0x38d3215a MultiplexerSource::perform() + 186
23 CoreFoundation 0x31c5a680 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 12
24 CoreFoundation 0x31c59f7a __CFRunLoopDoSources0 + 358
25 CoreFoundation 0x31c58cb2 __CFRunLoopRun + 642
26 CoreFoundation 0x31bcbeb8 CFRunLoopRunSpecific + 352
27 CoreFoundation 0x31bcbd44 CFRunLoopRunInMode + 100
28 GraphicsServices 0x399c92e6 GSEventRunModal + 70
29 UIKit 0x394872f4 UIApplicationMain + 1116
30 ourapp 0x000be76a 0xba000 + 18282
31 ourapp 0x000bb684 0xba000 + 5764
还有其他机会可以从这种情况下获得更多信息吗？如何将其插入XCode并可能跟踪崩溃或只能在事后进行？
最重要的是，您认为导致崩溃的原因是什么？
我们的问题与Core Data轻量级迁移有关。我们使用“ Magical Record”库来处理我们的核心数据提取并对其进行更新解决了该问题。
另外，this blog post很有用。