I am working on iBeacon technology and SIGTRAP occurred at "[CoreLocationHandler locationManager:didRangeBeacons:inRegion:]" delegate method.
Inside this delegate method I am running a task over DISPATCH_QUEUE_SERIAL, and using #autoreleasepool block to save data locally.
This queue is returned by a static method of a singleton class, so I am not releasing this queue anywhere since various classes are using it. But still I am receiving SIGTRAP crash. Following is the important info regarding crash report.
CRASH REPORT
Date/Time: 2015-11-18 06:34:02.920 +0000
Launch Time: 2015-11-18 06:28:56.798 +0000
OS Version: iOS 8.0.2 (12A405)
Report Version: 105
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x000000000000defe
Triggered by Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:<br/>
0 libdispatch.dylib 0x3276f6ac _os_object_retain + 32
1 libobjc.A.dylib 0x32229474 objc_retainAutoreleaseReturnValue + 4
2 MyApp 0x000cf020 -[BusinessLayer initWithBeaconArray:withLocationManager:withDelegate:] (BusinessLayer.m:81)
3 MyApp 0x000e51fe -[CoreLocationHandler locationManager:didRangeBeacons:inRegion:] (CoreLocationHandler.m:319)
4 CoreLocation 0x2522049e 0x25212000 + 58526
5 CoreLocation 0x2521ad06 0x25212000 + 36102
6 CoreLocation 0x25214af4 0x25212000 + 10996
7 CoreFoundation 0x24b275b2 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 10
8 CoreFoundation 0x24b26874 __CFRunLoopDoBlocks + 212
9 CoreFoundation 0x24b253ae __CFRunLoopRun + 1710
10 CoreFoundation 0x24a7361c CFRunLoopRunSpecific + 472
11 CoreFoundation 0x24a7342e CFRunLoopRunInMode + 102
12 GraphicsServices 0x2be220a4 GSEventRunModal + 132
13 UIKit 0x2805e354 UIApplicationMain + 1436
14 MyApp 0x000e815c main (main.m:16)
15 libdyld.dylib 0x3278eaac start + 0
Related
Crashes are reported into firebase console, and it's happening very rarely without any concrete repro steps. Below is my crash log:
Any Idea why would this happen?
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x0000000104f9d960
Exception Note: EXC_CORPSE_NOTIFY
Termination Reason: SIGNAL 5 Trace/BPT trap: 5
Terminating Process: exc handler \[9693\]
Triggered by Thread: 0
Kernel Triage:
VM - pmap_enter failed with resource shortage
VM - pmap_enter failed with resource shortage
VM - pmap_enter failed with resource shortage
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 MyApp 0x104f9d960 0x104940000 + 6674784
1 MyApp 0x104f9ca0c 0x104940000 + 6670860
2 Combine 0x1bf1e34b0 Subscribers.Sink.receive(_:) + 96
3 Combine 0x1bf1e2da8 protocol witness for Subscriber.receive(_:) in conformance Subscribers.Sink\<A, B\> + 24
4 Combine 0x1bf1ea9fc closure #1 in Publishers.ReceiveOn.Inner.receive(\_:) + 288
5 libswiftDispatch.dylib 0x1c0cddc04 thunk for #escaping #callee_guaranteed () -\> () + 36
6 libdispatch.dylib 0x1a6d9ae6c \_dispatch_call_block_and_release + 32
7 libdispatch.dylib 0x1a6d9ca30 \_dispatch_client_callout + 20
8 libdispatch.dylib 0x1a6daaf48 \_dispatch_main_queue_drain + 928
9 libdispatch.dylib 0x1a6daab98 _dispatch_main_queue_callback_4CF + 44
10 CoreFoundation 0x1a70ed800 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16
11 CoreFoundation 0x1a70a7704 \__CFRunLoopRun + 2532
12 CoreFoundation 0x1a70babc8 CFRunLoopRunSpecific + 600
13 GraphicsServices 0x1c3226374 GSEventRunModal + 164
14 UIKitCore 0x1a9a2eb58 -\[UIApplication run\] + 1100
15 UIKitCore 0x1a97b0090 UIApplicationMain + 364
16 SwiftUI 0x1aef14f24 closure #1 in KitRendererCommon(_:) + 164
17 SwiftUI 0x1aee42e08 runApp\<A\>(:) + 252
18 SwiftUI 0x1aee240f4 static App.main() + 128
19 MyApp 0x104944840 0x104940000 + 18496
20 dyld 0x105d7dda4 start + 520
Tried symbolicating the crash using the dysm file too, yet unable to get to the root cause.
Any help would be appreciated.
This question already has answers here:
CLLocationCoordinate2D can't be instantiated
(2 answers)
Closed 1 year ago.
I'm trying to initialize a CLLocationCoordinate2D from a Swift Playground, and I'm getting the error:
error: Execution was interrupted, reason: signal SIGABRT.
The process has been left at the point where it was interrupted, use "thread return -x" to return to the state before expression evaluation.
Not sure what I'm doing wrong. Here is what I tried:
var temporaryCoordinate = CLLocationCoordinate2D(latitude: 0.0, longitude: 0.0)
You have found a very unusual and interesting bug. I can reproduce your problem by running the following code in a Blank iOS playground:
import UIKit
import CoreLocation
var temporaryCoordinate = CLLocationCoordinate2D(latitude: 0.0, longitude: 0.0)
What is going wrong is that the runtime environment, the Playground, is itself crashing. In the Mac, in the Console app, with Crash Reports left tab, we can see that the Xcode Playground is crashing.
Process: scratch-playground [1696]
Path: /Users/USER/Library/Developer/XCPGDevices/D22341D9-BFF3-4575-9801-1405F0AA2EA2/data/Containers/Bundle/Application/67A50F6D-18E8-4220-A2EB-8673018601AA/scratch-playground-1381-1.app/scratch-playground
Identifier: scratch-playground
Version: 1.0 (1)
Code Type: ARM-64 (Native)
Parent Process: ??? [1697]
Responsible: SimulatorTrampoline [635]
User ID: 501
Date/Time: 2021-04-06 21:43:05.608 +0100
OS Version: macOS 11.2.3 (20D91)
Report Version: 12
Anonymous UUID: BFEAE183-A757-B843-D9D2-BF254A4665C2
Time Awake Since Boot: 6300 seconds
System Integrity Protection: enabled
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
External Modification Warnings:
Debugger attached to process.
Application Specific Information:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[NSValue valueWithMKCoordinate:]: unrecognized selector sent to class 0x1c9d3f588'
terminating with uncaught exception of type NSException
abort() called
CoreSimulator 732.18.6 - Device: iPad Pro (9.7-inch) (D22341D9-BFF3-4575-9801-1405F0AA2EA2) - Runtime: iOS 14.4 (18D46) - DeviceType: iPad Pro (9.7-inch)
Application Specific Backtrace 1:
0 CoreFoundation 0x00000001803f61fc __exceptionPreprocess + 236
1 libobjc.A.dylib 0x000000018016a438 objc_exception_throw + 56
2 CoreFoundation 0x00000001804053bc __CFExceptionProem + 0
3 CoreFoundation 0x00000001803fa45c ___forwarding___ + 1408
4 CoreFoundation 0x00000001803fc42c _CF_forwarding_prep_0 + 92
5 libswiftCoreLocation.dylib 0x00000001b1f98044 $s12CoreLocation39CLLocationCoordinate2DInNSValueObjCType33_25AD2332B1DC67E23B54508C4A7DAD45LLSPys4Int8VGvpfiAFyXEfU_ + 104
6 libswiftCoreLocation.dylib 0x00000001b1f97fcc globalinit_33_25AD2332B1DC67E23B54508C4A7DAD45_func0 + 12
7 libdispatch.dylib 0x0000000180100c48 _dispatch_client_callout + 16
8 libdispatch.dylib 0x0000000180102300 _dispatch_once_callout + 28
9 libswiftCore.dylib 0x000000018eed4ee8 swift_once + 44
10 libswiftCoreLocation.dylib 0x00000001b1f9817c $sSo22CLLocationCoordinate2DVs21_ObjectiveCBridgeable12CoreLocationsACP09_bridgeToC1C01_C5CTypeQzyFTW + 116
11 libswiftCore.dylib 0x000000018eeac510 _ZL37bridgeAnythingNonVerbatimToObjectiveCPN5swift11OpaqueValueEPKNS_14TargetMetadataINS_9InProcessEEEb + 360
12 libswiftCore.dylib 0x000000018ec10d70 $ss27_bridgeAnythingToObjectiveCyyXlxlF + 184
13 PlaygroundLogger 0x0000000100c6f9f8 globalinit_33_86996C1BC443F28F24E6A34F24210E4B_func8 + 2132
14 PlaygroundLogger 0x0000000100c6c848 globalinit_33_B1F54B50FE3698781248948D54A93147_func6 + 520
15 PlaygroundLogger 0x0000000100c6db44 playground_log_hidden + 276
16 ??? 0x0000000100c34350 0x0 + 4307764048
17 scratch-playground 0x0000000100ac2ea4 main + 0
18 CoreFoundation 0x0000000180365254 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 20
19 CoreFoundation 0x00000001803644ec __CFRunLoopDoBlocks + 404
20 CoreFoundation 0x000000018035eda8 __CFRunLoopRun + 780
21 CoreFoundation 0x000000018035e58c CFRunLoopRunSpecific + 572
22 GraphicsServices 0x000000018b9c2740 GSEventRunModal + 160
23 UIKitCore 0x00000001843ccbf0 -[UIApplication _run] + 964
24 UIKitCore 0x00000001843d19d0 UIApplicationMain + 112
25 scratch-playground 0x0000000100ac2f7c main + 216
26 libdyld.dylib 0x0000000180223cbc start + 4
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00000001bd7c3c10 __pthread_kill + 8
1 libsystem_pthread.dylib 0x00000001bd7fc034 pthread_kill + 260
2 libsystem_c.dylib 0x00000001800f378c abort + 100
3 libc++abi.dylib 0x000000018021cf20 abort_message + 128
4 libc++abi.dylib 0x000000018020ef1c demangling_terminate_handler() + 296
5 libobjc.A.dylib 0x000000018016a6e8 _objc_terminate() + 124
6 libc++abi.dylib 0x000000018021c3c0 std::__terminate(void (*)()) + 16
7 libc++abi.dylib 0x000000018021c358 std::terminate() + 44
8 libdispatch.dylib 0x0000000180100c5c _dispatch_client_callout + 36
9 libdispatch.dylib 0x0000000180102300 _dispatch_once_callout + 28
10 libswiftCore.dylib 0x000000018eed4ee8 swift_once + 44
11 libswiftCoreLocation.dylib 0x00000001b1f9817c protocol witness for _ObjectiveCBridgeable._bridgeToObjectiveC() in conformance CLLocationCoordinate2D + 116
12 libswiftCore.dylib 0x000000018eeac510 bridgeAnythingNonVerbatimToObjectiveC(swift::OpaqueValue*, swift::TargetMetadata<swift::InProcess> const*, bool) + 360
13 libswiftCore.dylib 0x000000018ec10d70 _bridgeAnythingToObjectiveC<A>(_:) + 184
14 com.apple.dt.PlaygroundLogger 0x0000000100c6f9f8 0x100c68000 + 31224
15 com.apple.dt.PlaygroundLogger 0x0000000100c6c848 0x100c68000 + 18504
16 com.apple.dt.PlaygroundLogger 0x0000000100c6db44 playground_log_hidden + 276
17 ??? 0x0000000100c34350 0 + 4307764048
18 com.apple.dt.playground.stub.iOS_Simulator.scratch-playground-10BCB7AC-7E28-4D75-BC98-3FA7A44E2F36 0x0000000100ac2ea4 linkResources + 328
19 com.apple.CoreFoundation 0x0000000180365254 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 20
20 com.apple.CoreFoundation 0x00000001803644ec __CFRunLoopDoBlocks + 404
21 com.apple.CoreFoundation 0x000000018035eda8 __CFRunLoopRun + 780
22 com.apple.CoreFoundation 0x000000018035e58c CFRunLoopRunSpecific + 572
23 com.apple.GraphicsServices 0x000000018b9c2740 GSEventRunModal + 160
24 com.apple.UIKitCore 0x00000001843ccbf0 -[UIApplication _run] + 964
25 com.apple.UIKitCore 0x00000001843d19d0 UIApplicationMain + 112
26 com.apple.dt.playground.stub.iOS_Simulator.scratch-playground-10BCB7AC-7E28-4D75-BC98-3FA7A44E2F36 0x0000000100ac2f7c main + 216
27 libdyld.dylib 0x0000000180223cbc start + 4
I think the problem is that there are two Core Location binaries in play:
0x18321e000 - 0x1832a8fff com.apple.corelocation (2420.12.16 - 2420.12.16) <F94D1F57-86D5-3A82-8F2B-80A9AEAC0308> /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/CoreLocation.framework/CoreLocation
and
0x1b1f96000 - 0x1b1f98fff +libswiftCoreLocation.dylib (5) <EE615605-C11D-3F60-B611-8B1C1D45FEEA> /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/usr/lib/swift/libswiftCoreLocation.dylib
and the playground is communicating from one world to the other world; talking to the iOS simulator. But there is an incompatibility between the two as the message is not carried across correctly due to type confusion. This leads to the
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[NSValue
valueWithMKCoordinate:]: unrecognized selector sent to class
0x1c9d3f588' terminating with uncaught exception of type NSException
I think you should file a bug with Apple. To avoid the problem, write your code based on the iOS Simulator directly, instead of using the Playground. In such circumstances, your code will execute correctly (since it directly will run against the simulator without the intervening bridge from the Playground).
As Alexander says in his comment, there is nothing wrong with the code you posted. The cause of the crash is elsewhere.
I am using Xcode 9.1, but the following issue happened with Xcode 9 as well.
Sometimes, after running an application in the simulator and stopping the execution from Xcode, the simulator gets stuck in a loop and opens/closes the same application rapidly and endlessly.
The fix that I know for this issue is running an application from Xcode again or quitting the simulator.
It seems like the OS of the simulator is not a key factor, it already happened with multiple different simulators.
If I try to close the application by pressing the Home button, SpringBoard throws a crash:
Here is a relevant snippet from the crash:
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Application Specific Information:
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'need the old view controller for <SBLayoutElement: 0x600001a7f3c0; identifier: [application's ID]; layoutRole: primary; layoutElementMode: default> {
supportedLayoutRoles = primary;
layoutAttributes = none;
viewControllerClass = SBMainWorkspaceApplicationSceneLayoutElementViewController;
}'
terminating with uncaught exception of type NSException
abort() called
CoreSimulator 494.22.7 - Device: iPhone 6 - Runtime: iOS 11.1 (15B87) - DeviceType: iPhone 6
Application Specific Backtrace 1:
0 CoreFoundation 0x0000000115bc61ab __exceptionPreprocess + 171
1 libobjc.A.dylib 0x000000011525bf41 objc_exception_throw + 48
2 CoreFoundation 0x0000000115bcb372 +[NSException raise:format:arguments:] + 98
3 Foundation 0x0000000111085089 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 193
4 SpringBoard 0x0000000108e5f17a SpringBoard + 2863482
5 SpringBoard 0x00000001090980bc SpringBoard + 5193916
6 SpringBoard 0x0000000108e5e9c9 SpringBoard + 2861513
7 SpringBoard 0x00000001090be78d SpringBoard + 5351309
8 SpringBoard 0x0000000108e60902 SpringBoard + 2869506
9 SpringBoard 0x0000000108e17094 SpringBoard + 2568340
10 SpringBoard 0x0000000108f5d197 SpringBoard + 3903895
11 SpringBoard 0x0000000108f5d253 SpringBoard + 3904083
12 SpringBoard 0x0000000108f5d86b SpringBoard + 3905643
13 SpringBoard 0x0000000108f5c4a0 SpringBoard + 3900576
14 SpringBoard 0x0000000108f5aea9 SpringBoard + 3894953
15 BaseBoard 0x000000010e749091 __22-[BSTransaction begin]_block_invoke + 178
16 BaseBoard 0x000000010e74f7b7 -[BSTransaction _preventTransactionCompletionForReason:ignoringAuditHistory:andExecuteBlock:] + 66
17 BaseBoard 0x000000010e748c4b -[BSTransaction begin] + 890
18 BaseBoard 0x000000010e749136 __22-[BSTransaction begin]_block_invoke + 343
19 BaseBoard 0x000000010e74f7b7 -[BSTransaction _preventTransactionCompletionForReason:ignoringAuditHistory:andExecuteBlock:] + 66
20 BaseBoard 0x000000010e748c4b -[BSTransaction begin] + 890
21 SpringBoard 0x0000000108beea28 SpringBoard + 305704
22 SpringBoard 0x0000000108bf1875 SpringBoard + 317557
23 SpringBoard 0x0000000108bf1597 SpringBoard + 316823
24 SpringBoard 0x0000000108befee4 SpringBoard + 311012
25 BaseBoard 0x000000010e7569c8 -[BSEventQueue _processNextEvent] + 349
26 SpringBoard 0x0000000108beeb3b SpringBoard + 305979
27 libdispatch.dylib 0x0000000116dd8273 _dispatch_call_block_and_release + 12
28 libdispatch.dylib 0x0000000116dd92b5 _dispatch_client_callout + 8
29 libdispatch.dylib 0x0000000116de3496 _dispatch_main_queue_callback_4CF + 1260
30 CoreFoundation 0x0000000115b88ee9 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
31 CoreFoundation 0x0000000115b4d592 __CFRunLoopRun + 2402
32 CoreFoundation 0x0000000115b4c9b9 CFRunLoopRunSpecific + 409
33 GraphicsServices 0x00000001115e89c6 GSEventRunModal + 62
34 UIKit 0x000000010c0fb5e8 UIApplicationMain + 159
35 FrontBoard 0x000000010e4efdfa FBSystemAppMain + 1010
36 libdyld.dylib 0x0000000116e4dd81 start + 1
37 ??? 0x0000000000000001 0x0 + 1
Is there a known fix for this?
I had a user running my app on his iPhone 5. He performed a backup with iTunes. Bought a new iPhone 6S and restored from his iTunes backup.
When he launches my app it immediately crashes during launch. I got the crash logs from him, but there is no error message. It's crashing during the auto-generated -applicationDocumentsDirectory function in my AppDelegate.
- (NSURL *)applicationDocumentsDirectory
{
return [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];
}
Is there any way for me to determine what actually went wrong to see if it's something I can fix?
Incident Identifier: 3A0D56CA-EEAF-4F5A-8D16-D182E61034D5
CrashReporter Key: 9f4ce42b70e98d925f135c618394817f9451767b
Hardware Model: iPhone8,1
Process: MyApp [1198]
Path: /private/var/mobile/Containers/Bundle/Application/XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXX/MyApp.app/MyApp
Identifier: com.inadaydevelopment.myapp
Version: 1.0.1 (1.0)
Code Type: ARM-64 (Native)
Parent Process: launchd [1]
Date/Time: 2015-10-02 14:30:25.25 -0700
Launch Time: 2015-10-02 14:30:25.25 -0700
OS Version: iOS 9.0.1 (13A405)
Report Version: 105
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Triggered by Thread: 0
Filtered syslog:
None found
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x000000019950b1e0 __pthread_kill + 8
1 libsystem_pthread.dylib 0x00000001995d4f0c pthread_kill + 112
2 libsystem_c.dylib 0x000000019947eb78 abort + 140
3 MyApp 0x000000010001ef7c -[AppDelegate applicationDocumentsDirectory] (AppDelegate.m:517)
4 MyApp 0x000000010001eae8 -[AppDelegate managedObjectContext] (AppDelegate.m:430)
5 MyApp 0x000000010002d004 -[BaseViewController awakeFromNib] (BaseViewController.m:54)
6 UIKit 0x00000001890e6058 -[UINib instantiateWithOwner:options:] + 2188
7 UIKit 0x0000000189324ea0 -[UIStoryboard instantiateViewControllerWithIdentifier:] + 196
8 UIKit 0x0000000189325000 -[UIStoryboard instantiateInitialViewController] + 68
9 UIKit 0x0000000188edd178 -[UIApplication _loadMainStoryboardFileNamed:bundle:] + 108
10 UIKit 0x0000000188caee40 -[UIApplication _loadMainInterfaceFile] + 264
11 UIKit 0x0000000188edc068 -[UIApplication _runWithMainScene:transitionContext:completion:] + 1316
12 UIKit 0x0000000188ed9300 -[UIApplication workspaceDidEndTransaction:] + 168
13 FrontBoardServices 0x000000018d7737ec -[FBSSerialQueue _performNext] + 184
14 FrontBoardServices 0x000000018d773b6c -[FBSSerialQueue _performNextFromRunLoopSource] + 56
15 CoreFoundation 0x000000018369c5a4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
16 CoreFoundation 0x000000018369c038 __CFRunLoopDoSources0 + 540
17 CoreFoundation 0x0000000183699d38 __CFRunLoopRun + 724
18 CoreFoundation 0x00000001835c8dc0 CFRunLoopRunSpecific + 384
19 UIKit 0x0000000188ca80c8 -[UIApplication _run] + 460
20 UIKit 0x0000000188ca2f60 UIApplicationMain + 204
21 MyApp 0x000000010001bdd0 main (main.m:16)
22 libdyld.dylib 0x00000001993ee8b8 start + 4
Crashes without any useful stacktrace often happen when a message is sent to a deallocated instance. I struggled with this a few weeks ago when messing around with a UIViewController category.
Of course, you are right, a message sent to nil doesn't do no harm. A message sent to a deallocated instance of sth on the other hand leads to a crash.
Try turning ZombieObjects on, then you will get a log when this occurs, which can help you find the bug.
The iOS app I am developing is having this crash with many of my users (I can catch it via PLCrashReporter library). The Exception type is SIGSEGV, so I believe is an error involving memory (like acceding a deallocated variable?).
But how can I discover what triggered it? The first line in the stacktrace involving my app is line 13:
13 ****** 0x004a9b40 _mh_execute_header +
And I really can't catch what this could mean.
Is there a way to see more info, or maybe the first four/five lines can help me more than I think?
Additional information: I use massively CoreData and NSManagedObjects, so I can't check every instance if those.
Build Version: 2.0
Incident Identifier: 5D8AECAD-3DC6-403D-8C8A-86FCC06C7FF0
Hardware Model: iPad3,3
Process: ****** [6112]
Path: /private/var/mobile/Containers/Bundle/Application/853B3A08-D893-45CA-B223-BD4A3B0241FF/******.app/******
Identifier: com.**.******
Version: 2
Code Type: ARM
Parent Process: launchd [1]
Date/Time: 2015-07-30 11:56:43 +0000
OS Version: iPhone OS 8.4 (12H143)
Report Version: 104
Exception Type: SIGSEGV
Exception Codes: SEGV_ACCERR at 0x7176d0c2
Crashed Thread: 0
Thread 0 Crashed:
0 libobjc.A.dylib 0x3408df66 objc_msgSend + 5
1 CoreData 0x25521bad -[NSManagedObject _clearRawPropertiesWithHint:] + 284
2 CoreData 0x25521a13 -[NSFaultHandler turnObject:intoFaultWithContext:] + 398
3 CoreData 0x2551f517 -[NSManagedObject dealloc] + 74
4 CoreData 0x2551ec25 -[_PFManagedObjectReferenceQueue _processReferenceQueue:] + 1768
5 CoreData 0x2551e4b3 <redacted> + 326
6 CoreFoundation 0x257d026d <redacted> + 20
7 CoreFoundation 0x257cd951 <redacted> + 276
8 CoreFoundation 0x257cdd53 <redacted> + 914
9 CoreFoundation 0x257199a1 CFRunLoopRunSpecific + 476
10 CoreFoundation 0x257197b3 CFRunLoopRunInMode + 106
11 GraphicsServices 0x2d0c11a9 GSEventRunModal + 136
12 UIKit 0x28eca635 UIApplicationMain + 1440
13 ****** 0x004a9b40 _mh_execute_header + 4156224
14 libdyld.dylib 0x3464faaf <redacted> + 2
[...]