如何解决请帮助更好地了解崩溃崩溃的详细信息：使用iOS 14上的Core Data，Xcode 12
我在这方面没有很多经验。我没有对代码进行任何更改，但是在iOS 14之后，我开始崩溃，并且仅适用于iOS 14操作系统。核心数据可能有所变化吗？这是崩溃日志详细信息和Firebase。非常感谢！
我试图抓住它，这就是我发现的东西：
==13048==ERROR: AddressSanitizer: allocator is out of memory trying to allocate 0x1a0 bytes
==13048==FATAL: AddressSanitizer: internal allocator is out of memory trying to allocate 0x50 bytes
AddressSanitizer report breakpoint hit. Use 'thread info -s' to get extended information about the report.
(lldb) thread info -s
thread #1: tid = 0x12fa63,0x00000001041961f8 libclang_rt.asan_ios_dynamic.dylib`__asan::AsanDie(),queue = 'sqlQueue 0x16572e2c0 for MyApp.sqlite',stop reason = AddressSanitizer detected: out-of-memory
{
"access_size": 0,"access_type": 0,"address": 0,"description": "out-of-memory","instrumentation_class": "AddressSanitizer","pc": 0,"stop_type": "fatal_error"
}
我的功能，我认为我遇到了崩溃。
(NSMutableArray *)getobjectsforEntity:(Nsstring *)strEntity sortBy:(Nsstring *)strSort isAscending:(BOOL)ascending predicate:(nspredicate *)predicate {
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] initWithEntityName:strEntity];
if (strSort) {
NSSortDescriptor *sort = [[NSSortDescriptor alloc] initWithKey:strSort ascending:ascending];
[fetchRequest setSortDescriptors:[NSArray arrayWithObject:sort]];
}
if (predicate) {
[fetchRequest setPredicate:predicate];
}
NSError *error;
NSMutableArray *result = [[[[self managedobjectContext] executeFetchRequest:fetchRequest error:&error] mutablecopy ]autorelease];
if (result == nil) {
return [[NSMutableArray alloc] init];
}
return result;
}
崩溃日志 线程5崩溃： 0 CoreData 0x000000019d9fb6b8 _PFObjectIDFastHash64 + 36（NSBasicObjectID.m：707） 1个CoreData 0x000000019d9fb6b4 _PFObjectIDFastHash64 + 32（NSBasicObjectID.m：706） 2 CoreFoundation 0x0000000197c1c10c __CFBasicHashRehash + 996（CFBasicHash.c：477） 3 CoreFoundation 0x0000000197c1fdf4 CFBasicHashRemoveValue + 2352（CFBasicHash.c：1386） 4 CoreFoundation 0x0000000197b3e2f8 CFDictionaryRemoveValue + 224（CFDictionary.c：471） 5 CoreData 0x000000019d94b8e8-[NSManagedobjectContext（_NSInternalAdditions）_forgetobject：propagatetoObjectStore：removeFromregistry：] + 120（NSManagedobjectContext.m：5088） 6 CoreData 0x000000019d92b450-[_ PFManagedobjectReferenceQueue _processReferenceQueue：] + 864（NSManagedobjectContext.m：5077） 7 CoreData 0x000000019da43578 __90- [NSManagedobjectContext（_NSInternalNotificationHandling）_registerasyncReferenceCallback] _block_invoke + 68（NSManagedobjectContext.m：8825） 8 CoreData 0x000000019da39b18 developerSubmittedBlockToNSManagedobjectContextPerform + 156（NSManagedobjectContext.m：3880） 9 libdispatch.dylib 0x000000019782b280 _dispatch_client_callout + 16（object.m：559） 10 libdispatch.dylib 0x00000001977d3fa8 _dispatch_lane_serial_drain $ VARIANT $ mp + 612（inline_internal.h：2548） 11 libdispatch.dylib 0x00000001977d4a84 _dispatch_lane_invoke $ VARIANT $ mp + 424（queue.c：3862） 12 libdispatch.dylib 0x00000001977de518 _dispatch_workloop_worker_thread + 712（queue.c：6590） 13 libsystem_pthread.dylib 0x00000001dc7005a4 _pthread_wqthread + 272（pthread.c：2193） 14 libsystem_pthread.dylib 0x00000001dc703874 start_wqthread + 8
Thread 5 crashed with ARM Thread State (64-bit):
x0: 0x0000000000000000 x1: 0x0000000000000000 x2: 0x0000000000000000 x3: 0x0000000155e57240
x4: 0x0000000155e570c0 x5: 0x0000000155f2d800 x6: 0x0000000000000015 x7: 0x0000000000000000
x8: 0x0000000000000005 x9: 0x000000019d9fb694 x10: 0x0000000157008200 x11: 0x0000000197dc6c60
x12: 0x0000000000000002 x13: 0x0000000000080003 x14: 0x00000000deeea853 x15: 0x000000000000bed5
x16: 0x00000001ab41abec x17: 0x0000000000000002 x18: 0x0000000000000000 x19: 0x0000000000000000
x20: 0x0000000000000000 x21: 0x0000000000000000 x22: 0x0000000155f80520 x23: 0x0000000000000047
x24: 0x0000000000000000 x25: 0x0000000281857980 x26: 0x0000000000000001 x27: 0x0000000282e2c068
x28: 0x0000000000000047 fp: 0x000000016f716070 lr: 0x000000019d9fb6b4
sp: 0x000000016f716060 pc: 0x000000019d9fb6b8 cpsr: 0x80000000
esr: 0x92000005 (Data Abort) byte read Translation fault
Firebase
第一次崩溃
Crashed: com.apple.main-thread
0 CoreData 0x1abc966b8 _PFObjectIDFastHash64 + 36
1 CoreFoundation 0x1a5eb710c __CFBasicHashRehash + 996
2 CoreFoundation 0x1a5ebadf4 CFBasicHashRemoveValue + 2352
3 CoreFoundation 0x1a5dd92f8 CFDictionaryRemoveValue + 224
4 CoreData 0x1abbe68e8 -[NSManagedobjectContext(_NSInternalAdditions) _forgetobject:propagatetoObjectStore:removeFromregistry:] + 120
5 CoreData 0x1abbc6450 -[_PFManagedobjectReferenceQueue _processReferenceQueue:] + 864
6 CoreData 0x1abc8e914 -[_PFAutoreleasePoolThunk dealloc] + 40
7 libobjc.A.dylib 0x1b96d2584 AutoreleasePoolPage::releaseUntil(objc_object**) + 200
8 libobjc.A.dylib 0x1b96d2460 objc_autoreleasePoolPop + 208
9 CoreFoundation 0x1a5e98a1c _CFAutoreleasePoolPop + 28
10 CoreFoundation 0x1a5e0da30 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 28
11 CoreFoundation 0x1a5e0d634 __CFRunLoopDoTimer + 1004
12 CoreFoundation 0x1a5e0cb14 __CFRunLoopDoTimers + 324
13 CoreFoundation 0x1a5e06eb0 __CFRunLoopRun + 1912
14 CoreFoundation 0x1a5e06200 CFRunLoopRunSpecific + 572
15 GraphicsServices 0x1bbf01598 GSEventRunModal + 160
16 UIKitCore 0x1a86cc004 -[UIApplication _run] + 1052
17 UIKitCore 0x1a86d15d8 UIApplicationMain + 164
18 MyApp 0x100a53a00 main + 14 (AppDelegate.swift:14)
19 libdyld.dylib 0x1a5ae5598 start + 4
第二次崩溃
Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x1b791e148 object_getClass + 12
1 CoreData 0x1a9f026b0 _PFObjectIDFastHash64 + 28
2 CoreFoundation 0x1a412310c __CFBasicHashRehash + 996
3 CoreFoundation 0x1a4126df4 CFBasicHashRemoveValue + 2352
4 CoreFoundation 0x1a40452f8 CFDictionaryRemoveValue + 224
5 CoreData 0x1a9e528e8 -[NSManagedobjectContext(_NSInternalAdditions) _forgetobject:propagatetoObjectStore:removeFromregistry:] + 120
6 CoreData 0x1a9e32450 -[_PFManagedobjectReferenceQueue _processReferenceQueue:] + 864
7 CoreData 0x1a9efa914 -[_PFAutoreleasePoolThunk dealloc] + 40
8 libobjc.A.dylib 0x1b793e584 AutoreleasePoolPage::releaseUntil(objc_object**) + 200
9 libobjc.A.dylib 0x1b793e460 objc_autoreleasePoolPop + 208
10 libdispatch.dylib 0x1a3d0e514 _dispatch_lane_serial_drain$VARIANT$armv81 + 592
11 libdispatch.dylib 0x1a3d0f01c _dispatch_lane_invoke$VARIANT$armv81 + 456
12 libdispatch.dylib 0x1a3d144a0 _dispatch_main_queue_callback_4CF$VARIANT$armv81 + 576
13 CoreFoundation 0x1a4078c30 __CFRUNLOOP_IS_SERVICING_THE_MAIN_disPATCH_QUEUE__ + 12
14 CoreFoundation 0x1a40730e8 __CFRunLoopRun + 2480
15 CoreFoundation 0x1a4072200 CFRunLoopRunSpecific + 572
16 GraphicsServices 0x1ba16d598 GSEventRunModal + 160
17 UIKitCore 0x1a6938004 -[UIApplication _run] + 1052
18 UIKitCore 0x1a693d5d8 UIApplicationMain + 164
19 MyApp 0x1005e6d50 main + 15 (AppDelegate.swift:15)
20 libdyld.dylib 0x1a3d51598 start + 4
第三次崩溃
Crashed: NSManagedobjectContext 0x2826edc70
0 libsystem_kernel.dylib 0x1b429195c __pthread_kill + 8
1 libsystem_pthread.dylib 0x1cebbb9e8 pthread_kill + 212
2 libsystem_c.dylib 0x192cf8934 abort + 100
3 libsystem_malloc.dylib 0x1989c2030 _malloc_put + 554
4 libsystem_malloc.dylib 0x1989c22a4 malloc_zone_error + 100
5 libsystem_malloc.dylib 0x1989ab9f0 szone_free + 460
6 CoreFoundation 0x18a0d86bc __CFBasicHashRehash + 2452
7 CoreFoundation 0x18a0dbdf4 CFBasicHashRemoveValue + 2352
8 CoreFoundation 0x189ffa2f8 CFDictionaryRemoveValue + 224
9 CoreData 0x18fe078e8 -[NSManagedobjectContext(_NSInternalAdditions) _forgetobject:propagatetoObjectStore:removeFromregistry:] + 120
10 CoreData 0x18fde7450 -[_PFManagedobjectReferenceQueue _processReferenceQueue:] + 864
11 CoreData 0x18feff578 __90-[NSManagedobjectContext(_NSInternalNotificationHandling) _registerasyncReferenceCallback]_block_invoke + 68
12 CoreData 0x18fef5b18 developerSubmittedBlockToNSManagedobjectContextPerform + 156
13 libdispatch.dylib 0x189ce7280 _dispatch_client_callout + 16
14 libdispatch.dylib 0x189c8ffa8 _dispatch_lane_serial_drain$VARIANT$mp + 612
15 libdispatch.dylib 0x189c90a84 _dispatch_lane_invoke$VARIANT$mp + 424
16 libdispatch.dylib 0x189c9a518 _dispatch_workloop_worker_thread + 712
17 libsystem_pthread.dylib 0x1cebbc5a4 _pthread_wqthread + 272
18 libsystem_pthread.dylib 0x1cebbf874 start_wqthread + 8
解决方法
您正在寻找的错误是这个
CoreData 0x000000019da39b18 developerSubmittedBlockToNSManagedObjectContextPerform + 156
这通常意味着您要在一个上下文中创建对象，然后在另一个上下文中保存。
通过添加Core Data的启动参数，例如-com.apple.CoreData.ConcurrencyDebug 1
您可以在出色的article中阅读有关调试的更多信息。
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