我有一个iphone应用程序，允许用户扫描条形码并从我的数据库中获取数据并将记录保存在他们的设备中。
对于大多数应用程序工作得很好..但许多人现在抱怨当他们获得200多条记录时，应用程序显示黑屏，他们无法使用该应用程序。直到最近我都无法复制..上周我添加了200条记录并且没有崩溃。几天后，我去打开应用程序并获得了黑屏。我停止了应用程序在后台运行 - 但它仍然显示黑屏。
现在我得到黑屏2-3秒然后关闭。并且无法访问该应用程序。这是一个错误的错误，因为用户然后卸载，重新安装并丢失他们在本地保存的所有200条记录。
我的崩溃报告在下面..但是我找不到罪魁祸首..必须是内存问题，因为只有当用户在本地保存了许多记录时才会发生这种情况。
根据下面的崩溃报告，任何人都可以告诉问题是什么吗？
Incident Identifier: 6564E93A-18F9-42A3-891D-E750A8A2F540
CrashReporter Key: 02d344b902cbad805bb9f94c8ce7ef17a9c75c40
Hardware Model: iPhone2,1
Process: Ultimate Coupon Organizer [796]
Path: /var/mobile/Applications/27AE5A2E-DBB1-4F85-A38A-CA8C86AF518A/Ultimate Coupon Organizer.app/Ultimate Coupon Organizer
Identifier: Ultimate Coupon Organizer
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2012-03-31 07:27:03.567 -0500
OS Version: iPhone OS 5.1 (9B176)
Report Version: 104
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x00000000, 0x00000000
Crashed Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x311a532c __pthread_kill + 8
1 libsystem_c.dylib 0x35edc208 pthread_kill + 48
2 libsystem_c.dylib 0x35ed5298 abort + 88
3 Ultimate Coupon Organizer 0x00004e44 -[Ultimate_Coupon_OrganizerAppDelegate persistentStoreCoordinator] (Ultimate_Coupon_OrganizerAppDelegate.m:547)
4 Ultimate Coupon Organizer 0x00004bee -[Ultimate_Coupon_OrganizerAppDelegate managedObjectContext] (Ultimate_Coupon_OrganizerAppDelegate.m:483)
5 Ultimate Coupon Organizer 0x00003dfa -[Ultimate_Coupon_OrganizerAppDelegate CreateIfNeedDefaultFolder] (Ultimate_Coupon_OrganizerAppDelegate.m:314)
6 Ultimate Coupon Organizer 0x00002cf8 -[Ultimate_Coupon_OrganizerAppDelegate application:didFinishLaunchingWithOptions:] (Ultimate_Coupon_OrganizerAppDelegate.m:88)
7 UIKit 0x31883e4c -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1176
8 UIKit 0x3187d97e -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 402
9 UIKit 0x3184bc64 -[UIApplication handleEvent:withNewEvent:] + 1004
10 UIKit 0x3184b708 -[UIApplication sendEvent:] + 48
11 UIKit 0x3184b0dc _UIApplicationHandleEvent + 5820
12 GraphicsServices 0x3486e224 PurpleEventCallback + 876
13 CoreFoundation 0x3528051c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 32
14 CoreFoundation 0x352804be __CFRunLoopDoSource1 + 134
15 CoreFoundation 0x3527f30c __CFRunLoopRun + 1364
16 CoreFoundation 0x3520249e CFRunLoopRunSpecific + 294
17 CoreFoundation 0x35202366 CFRunLoopRunInMode + 98
18 UIKit 0x3187ca0c -[UIApplication _run] + 544
19 UIKit 0x31879e76 UIApplicationMain + 1074
20 Ultimate Coupon Organizer 0x000029da main (main.m:14)
21 Ultimate Coupon Organizer 0x00002998 start + 32
Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x311953a8 kevent + 24
1 libdispatch.dylib 0x37be4ea4 _dispatch_mgr_invoke + 708
2 libdispatch.dylib 0x37be4bc2 _dispatch_mgr_thread + 30
Thread 2:
0 libsystem_kernel.dylib 0x311a5cd4 __workq_kernreturn + 8
1 libsystem_c.dylib 0x35e97f36 _pthread_wqthread + 610
2 libsystem_c.dylib 0x35e97cc8 start_wqthread + 0
Thread 3 name: WebThread
Thread 3:
0 libsystem_kernel.dylib 0x31195004 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x311951fa mach_msg + 50
2 CoreFoundation 0x352803ec __CFRunLoopServiceMachPort + 120
3 CoreFoundation 0x3527f124 __CFRunLoopRun + 876
4 CoreFoundation 0x3520249e CFRunLoopRunSpecific + 294
5 CoreFoundation 0x35202366 CFRunLoopRunInMode + 98
6 WebCore 0x3231c0f0 _ZL12RunWebThreadPv + 396
7 libsystem_c.dylib 0x35e9d72e _pthread_start + 314
8 libsystem_c.dylib 0x35e9d5e8 thread_start + 0
Thread 4:
0 libsystem_kernel.dylib 0x311a5cd4 __workq_kernreturn + 8
1 libsystem_c.dylib 0x35e97f36 _pthread_wqthread + 610
2 libsystem_c.dylib 0x35e97cc8 start_wqthread + 0
Thread 5 name: com.apple.NSURLConnectionLoader
Thread 5:
0 libsystem_kernel.dylib 0x31195004 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x311951fa mach_msg + 50
2 CoreFoundation 0x352803ec __CFRunLoopServiceMachPort + 120
3 CoreFoundation 0x3527f124 __CFRunLoopRun + 876
4 CoreFoundation 0x3520249e CFRunLoopRunSpecific + 294
5 CoreFoundation 0x35202366 CFRunLoopRunInMode + 98
6 Foundation 0x33a64bb2 +[NSURLConnection(Loader) _resourceLoadLoop:] + 302
7 Foundation 0x33a64a7a -[NSThread main] + 66
8 Foundation 0x33af858a __NSThread__main__ + 1042
9 libsystem_c.dylib 0x35e9d72e _pthread_start + 314
10 libsystem_c.dylib 0x35e9d5e8 thread_start + 0
Thread 6:
0 libsystem_kernel.dylib 0x311a5cd4 __workq_kernreturn + 8
1 libsystem_c.dylib 0x35e97f36 _pthread_wqthread + 610
2 libsystem_c.dylib 0x35e97cc8 start_wqthread + 0
Thread 7 name: com.apple.CFSocket.private
Thread 7:
0 libsystem_kernel.dylib 0x311a5570 __select + 20
1 CoreFoundation 0x3528463a __CFSocketManager + 726
2 libsystem_c.dylib 0x35e9d72e _pthread_start + 314
3 libsystem_c.dylib 0x35e9d5e8 thread_start + 0
Thread 0 crashed with ARM Thread State:
r0: 0x00000000 r1: 0x00000000 r2: 0x00000001 r3: 0x00000000
r4: 0x00000006 r5: 0x3f8d4d98 r6: 0x3eb36f70 r7: 0x2fdfe0cc
r8: 0x3eb4b198 r9: 0x00000000 r10: 0x3eb36f74 r11: 0x3eb426f0
ip: 0x00000148 sp: 0x2fdfe0c0 lr: 0x35edc20f pc: 0x311a532c
cpsr: 0x000f0010
Binary Images:
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0x315c7000 - 0x315d6fff OpenGLES armv7 <e80acc691001301e96101bb89d940033> /System/Library/Frameworks/OpenGLES.framework/OpenGLES
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0x31725000 - 0x31768fff libcommonCrypto.dylib armv7 <95b49daf4cf038b6bea8010bba3a1e26> /usr/lib/system/libcommonCrypto.dylib
0x31769000 - 0x31813fff libBLAS.dylib armv7 <bf822cc1a3243ae7b104cf73ca22d352> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libBLAS.dylib
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0x31d9a000 - 0x31dd1fff Security armv7 <eea56f71fde83c2981f9281dc7823725> /System/Library/Frameworks/Security.framework/Security
0x31dd3000 - 0x31dd7fff IOSurface armv7 <6ae77a40f8e93f28bc466ca93f5675d4> /System/Library/PrivateFrameworks/IOSurface.framework/IOSurface
0x31dd8000 - 0x31deefff libmis.dylib armv7 <258bc92be5823b239b4412dd42cb4807> /usr/lib/libmis.dylib
0x31e50000 - 0x31ed6fff CoreMotion armv7 <6a9355d5a8e238b5b8f193605d509e15> /System/Library/Frameworks/CoreMotion.framework/CoreMotion
0x32042000 - 0x32046fff IOMobileFramebuffer armv7 <42dbc26828e934acabb4f3b0a35d8250> /System/Library/PrivateFrameworks/IOMobileFramebuffer.framework/IOMobileFramebuffer
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0x32150000 - 0x32151fff libsystem_blocks.dylib armv7 <9fdc27af7350323bbc7d98e14e027907> /usr/lib/system/libsystem_blocks.dylib
0x32155000 - 0x32189fff MIME armv7 <d30292ea8f7e360fa5f5d5b1b62b602d> /System/Library/PrivateFrameworks/MIME.framework/MIME
0x32224000 - 0x32233fff GenerationalStorage armv7 <d84c3fd0e7bd36e78c256f2f4c5a4e91> /System/Library/PrivateFrameworks/GenerationalStorage.framework/GenerationalStorage
0x32252000 - 0x32256fff Marco armv7 <8dea3e558fe534ff868fc92e215ce53b> /System/Library/PrivateFrameworks/Marco.framework/Marco
0x32273000 - 0x32a31fff WebCore armv7 <814351ff217e3425a8e532c2e2251f73> /System/Library/PrivateFrameworks/WebCore.framework/WebCore
0x32a32000 - 0x32a46fff PersistentConnection armv7 <65682d21486836a3aa3e17b9461e7b3a> /System/Library/PrivateFrameworks/PersistentConnection.framework/PersistentConnection
0x32a4e000 - 0x32a51fff NetworkStatistics armv7 <7848d8ebad99367cb4f7f4e3fe88e5d6> /System/Library/PrivateFrameworks/NetworkStatistics.framework/NetworkStatistics
0x32a86000 - 0x32ae9fff IMCore armv7 <6e26e99b9b5f3829a8486ffd8c64f0d2> /System/Library/PrivateFrameworks/IMCore.framework/IMCore
0x32b13000 - 0x32b19fff liblockdown.dylib armv7 <9e45ce468a6f31e5b8263f2c224aa800> /usr/lib/liblockdown.dylib
0x32b36000 - 0x32b3cfff MobileIcons armv7 <ed1b46f917903c9b9baaa2be4392dafe> /System/Library/PrivateFrameworks/MobileIcons.framework/MobileIcons
0x32b58000 - 0x32b5bfff libcompiler_rt.dylib armv7 <b2c05d8601c13be884097192dca4e187> /usr/lib/system/libcompiler_rt.dylib
0x32b5c000 - 0x32d02fff CoreData armv7 <b0215b6d4d143859a2b313ecade095ec> /System/Library/Frameworks/CoreData.framework/CoreData
0x32d03000 - 0x32d0cfff libMobileGestalt.dylib armv7 <4a15e845dc6f3a4a980de66c1cc44c42> /usr/lib/libMobileGestalt.dylib
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0x32dd1000 - 0x32dd4fff CaptiveNetwork armv7 <f5cc4b97ce9432da9426f12621453325> /System/Library/PrivateFrameworks/CaptiveNetwork.framework/CaptiveNetwork
0x32e39000 - 0x32e75fff AppSupport armv7 <311eac85b2a433a884dacba77217b49e> /System/Library/PrivateFrameworks/AppSupport.framework/AppSupport
0x32e76000 - 0x32e76fff liblangid.dylib armv7 <644ff4bcfbf337b5b5859e3f0fc0a9a8> /usr/lib/liblangid.dylib
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0x32e9c000 - 0x32ea3fff libc++abi.dylib armv7 <bab4dcbfc5943d3fbb637342d35e8045> /usr/lib/libc++abi.dylib
0x32f7e000 - 0x32f81fff libsystem_network.dylib armv7 <356cb66612e836968ef24e6e5c3364cc> /usr/lib/system/libsystem_network.dylib
0x33287000 - 0x332c6fff QuickLook armv7 <802b1092542a3017a0380632502610d4> /System/Library/Frameworks/QuickLook.framework/QuickLook
0x33340000 - 0x33359fff libRIP.A.dylib armv7 <1828cddc5dd93c61afbefb59587d7f8a> /System/Library/Frameworks/CoreGraphics.framework/Resources/libRIP.A.dylib
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0x333d0000 - 0x333dcfff libCRFSuite.dylib armv7 <bdb2b4d1a78c39c1ba60d791207aed2a> /usr/lib/libCRFSuite.dylib
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0x335f1000 - 0x335f5fff FTClientServices armv7 <21de970d7ebb3e7fb502a0a5451b0806> /System/Library/PrivateFrameworks/FTClientServices.framework/FTClientServices
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0x356c2000 - 0x3570bfff libc++.1.dylib armv7 <5b690e5dd5a43a7fb166ade9fe58a7a4> /usr/lib/libc++.1.dylib
0x3570c000 - 0x35726fff CoreServicesInternal armv7 <cccdb5638b17398f8082542c1b3c8cf6> /System/Library/PrivateFrameworks/CoreServicesInternal.framework/CoreServicesInternal
0x35736000 - 0x357a6fff CoreImage armv7 <86ac6f5a267637b6b7f8a831dfc7c64b> /System/Library/Frameworks/CoreImage.framework/CoreImage
0x357f3000 - 0x3582efff libCGFreetype.A.dylib armv7 <55941c96cf1f3b048e72a148c4496c16> /System/Library/Frameworks/CoreGraphics.framework/Resources/libCGFreetype.A.dylib
0x35842000 - 0x35846fff libAccessibility.dylib armv7 <9a17d07b5a3b38cfafdf16f78c99b572> /usr/lib/libAccessibility.dylib
0x35847000 - 0x35851fff libbz2.1.0.dylib armv7 <40e4045fb79e382b8833707746cf28b1> /usr/lib/libbz2.1.0.dylib
0x35857000 - 0x35904fff libxml2.2.dylib armv7 <58d47f064e0232119f4b838ad659f9c1> /usr/lib/libxml2.2.dylib
0x35945000 - 0x35e89fff FaceCoreLight armv7 <f326d88709683520b251dc53cb847c11> /System/Library/PrivateFrameworks/FaceCoreLight.framework/FaceCoreLight
0x35e8f000 - 0x35f1bfff libsystem_c.dylib armv7 <f859ce1ad1773f0ba98d7c6e135b7697> /usr/lib/system/libsystem_c.dylib
0x35f47000 - 0x35f4afff CoreTime armv7 <a398de5ba1e43a11b7008e9bb5a7f6fe> /System/Library/PrivateFrameworks/CoreTime.framework/CoreTime
0x35ffa000 - 0x3600bfff DataAccessExpress armv7 <e6144ba265da3bb7b9a263aa1a29b054> /System/Library/PrivateFrameworks/DataAccessExpress.framework/DataAccessExpress
0x36038000 - 0x36074fff IMFoundation armv7 <77bb4365a65b32a49523b03da0340dbc> /System/Library/PrivateFrameworks/IMCore.framework/Frameworks/IMFoundation.framework/IMFoundation
0x36077000 - 0x360affff VideoToolbox armv7 <9f25f38d1cd13a1daff99cfde8884410> /System/Library/PrivateFrameworks/VideoToolbox.framework/VideoToolbox
0x360cd000 - 0x360cdfff Accelerate armv7 <55b24cf91a8b3532bde6733c96f14c08> /System/Library/Frameworks/Accelerate.framework/Accelerate
0x361a6000 - 0x3624cfff AddressBookUI armv7 <da424fecc66e3628ab03378ae80b38fc> /System/Library/Frameworks/AddressBookUI.framework/AddressBookUI
0x36291000 - 0x36294fff libmacho.dylib armv7 <e52b77623bd031bc807e77029566c777> /usr/lib/system/libmacho.dylib
0x36362000 - 0x363b0fff CoreLocation armv7 <44550ebedf23334d85441d9743b74e03> /System/Library/Frameworks/CoreLocation.framework/CoreLocation
0x36932000 - 0x36933fff CoreSurface armv7 <7850befd26b630f183ee326aaadd7b34> /System/Library/PrivateFrameworks/CoreSurface.framework/CoreSurface
0x36a8b000 - 0x36a93fff MobileWiFi armv7 <b76c3e9fb78234c392058250d4620e72> /System/Library/PrivateFrameworks/MobileWiFi.framework/MobileWiFi
0x36a9b000 - 0x36a9bfff libgcc_s.1.dylib armv7 <eb82984fa36c329387aa518aa5205f3d> /usr/lib/libgcc_s.1.dylib
0x36a9c000 - 0x36adcfff libGLImage.dylib armv7 <40448706190031f6b0d9636cc11ee81d> /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib
0x36b4e000 - 0x36c10fff Celestial armv7 <2a59586b0ae937c3b25fe526924aa885> /System/Library/PrivateFrameworks/Celestial.framework/Celestial
0x36d2e000 - 0x36d4bfff libsystem_info.dylib armv7 <50863bcbf478323e96a8e5b1a83ea6f9> /usr/lib/system/libsystem_info.dylib
0x36e86000 - 0x3706afff AudioToolbox armv7 <c91e27850452330ea804db6408840fd2> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox
0x3707d000 - 0x37082fff CrashReporterSupport armv7 <2bb524b3bb3c3eb2932ce13b655b7c7c> /System/Library/PrivateFrameworks/CrashReporterSupport.framework/CrashReporterSupport
0x37123000 - 0x37124fff libsystem_sandbox.dylib armv7 <66e985f3eea03ef08afb7cf4c153f76e> /usr/lib/system/libsystem_sandbox.dylib
0x37226000 - 0x3722cfff libnotify.dylib armv7 <9406297de3e43742887890662a87ab53> /usr/lib/system/libnotify.dylib
0x37271000 - 0x37337fff libobjc.A.dylib armv7 <90014d1bc583366d85622e43097df416> /usr/lib/libobjc.A.dylib
0x37338000 - 0x3733dfff libcopyfile.dylib armv7 <52e874396c393ed29099789ce702cfe2> /usr/lib/system/libcopyfile.dylib
0x3751d000 - 0x37591fff MediaControlSender armv7 <87315c54b2293ab589950341ff91b45d> /System/Library/PrivateFrameworks/MediaControlSender.framework/MediaControlSender
0x3759e000 - 0x377cbfff MediaToolbox armv7 <ec9bc89489763c6c93f86c5c490b2d69> /System/Library/PrivateFrameworks/MediaToolbox.framework/MediaToolbox
0x3780e000 - 0x37852fff MobileCoreServices armv7 <757226927a873d5492be721908077b48> /System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices
0x37875000 - 0x37877fff libCoreVMClient.dylib armv7 <d4d4aa3090c83e87bcb15ed00b93fd5c> /System/Library/Frameworks/OpenGLES.framework/libCoreVMClient.dylib
0x37892000 - 0x378c7fff SystemConfiguration armv7 <4464a4e3bb3f32f7abaa35ebf31fda49> /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
0x37910000 - 0x37927fff WebBookmarks armv7 <bd20a05587783a8e9596eef1d3615ea7> /System/Library/PrivateFrameworks/WebBookmarks.framework/WebBookmarks
0x37999000 - 0x379aefff libresolv.9.dylib armv7 <66f7557fa4b43979b186e00271839fdb> /usr/lib/libresolv.9.dylib
0x379af000 - 0x37a87fff vImage armv7 <caf3648be2933384b6aa1ae7408ab4f0> /System/Library/Frameworks/Accelerate.framework/Frameworks/vImage.framework/vImage
0x37a88000 - 0x37a89fff libdnsinfo.dylib armv7 <9aede8d6579d3430ac39ae5f95cce498> /usr/lib/system/libdnsinfo.dylib
0x37a8a000 - 0x37ae2fff CoreAudio armv7 <be335e8eb6f93594b028a6ddd503a183> /System/Library/Frameworks/CoreAudio.framework/CoreAudio
0x37af8000 - 0x37b2dfff DataAccess armv7 <89fd0c22338b37538cf61803a0bca9e2> /System/Library/PrivateFrameworks/DataAccess.framework/DataAccess
0x37b61000 - 0x37b6bfff libvMisc.dylib armv7 <e8248c797b9b363594bb652ddf7ce16d> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvMisc.dylib
0x37bd8000 - 0x37beefff libdispatch.dylib armv7 <9ecfaef4110a3bf9a92d12f0fe8d1d78> /usr/lib/system/libdispatch.dylib
0x37c39000 - 0x37d10fff CFNetwork armv7 <765a472c824830eea91b8f02d12867e4> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x37d3d000 - 0x37d3ffff MobileInstallation armv7 <215d93dbb0f63cbf828f9126eb7b5349> /System/Library/PrivateFrameworks/MobileInstallation.framework/MobileInstallation
0x37d40000 - 0x37e10fff WebKit armv7 <6ff2796c2f933050ac6ecdee9fc6a216> /System/Library/PrivateFrameworks/WebKit.framework/WebKit
0x381b1000 - 0x3836efff ImageIO armv7 <02e3578171fa3b6a969b244275fd2bab> /System/Library/Frameworks/ImageIO.framework/ImageIO
0x3836f000 - 0x3837cfff libbsm.0.dylib armv7 <750a0de73a733019a77144b805d4d2f8> /usr/lib/libbsm.0.dylib
0x38486000 - 0x3848afff libcache.dylib armv7 <d6a7436ed8dc33d795c9b42baf864882> /usr/lib/system/libcache.dylib
0x38492000 - 0x384a8fff EAP8021X armv7 <fffe86a22bc434a6ae84f23bfecef9d6> /System/Library/PrivateFrameworks/EAP8021X.framework/EAP8021X
0x384a9000 - 0x38597fff libiconv.2.dylib armv7 <2cfefe2ad1d335dd9549562910e7a2e2> /usr/lib/libiconv.2.dylib
0x38598000 - 0x38599fff libdyld.dylib armv7 <977b0ad6f2f433108b4a0324a57cd2ab> /usr/lib/system/libdyld.dylib
答案 0 :(得分：0)
看起来你的核心数据调用可能正在跨越一些线程边界。核心数据对象不是线程安全的，所以使用dispatch_async是一个很大的禁忌，除非你不做你正在做的事情。