I got this crash report from a remote user, but I cannot find any useful tip to resolve this issue, may be it's a retain problem but I cannot understand why because of I'm using ARC. Very small number of users are issuing this problem. I've tried all things both on simulator and on device (iPhone 4s) without any crash occurs... If I was able to crash on my device it will be very simple to find out what the problem is.
Somebody knows how to fix this issue?
Incident Identifier: F30F9C75-0FE3-4B39-AA17-209690A4787D
Hardware Model: iPod4,1
Process: Body-Language [1220]
Path: /var/mobile/Applications/2489EE05-177C-4AD1-BE3A-7B7158E13D82/Body-Language.app/Body-Language
Identifier: Body-Language
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2012-03-19 23:09:02.516 +0100
OS Version: iPhone OS 5.1 (9B176)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x6c707049
Crashed Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libobjc.A.dylib 0x30d63f78 objc_msgSend + 16
1 CoreFoundation 0x30c49e90 CFRetain + 76
2 CoreFoundation 0x30c53b74 +[__NSArrayI __new::] + 48
3 CoreFoundation 0x30c53a8e -[__NSPlaceholderArray initWithObjects:count:] + 294
4 CoreFoundation 0x30c537ce +[NSArray arrayWithObjects:count:] + 38
5 CoreFoundation 0x30c534f2 -[NSDictionary allValues] + 230
6 UIKit 0x33777032 -[UINib instantiateWithOwner:options:] + 538
7 UIKit 0x336e54ac -[UIViewController _loadViewFromNibNamed:bundle:] + 240
8 UIKit 0x335c2dfa -[UIViewController loadView] + 82
9 UIKit 0x335ac6bc -[UITableViewController loadView] + 68
10 UIKit 0x33538db8 -[UIViewController view] + 44
11 UIKit 0x3354538a -[UIViewController contentScrollView] + 18
12 UIKit 0x335451fa -[UINavigationController _computeAndApplyScrollContentInsetDeltaForViewController:] + 30
13 UIKit 0x335450e0 -[UINavigationController _layoutViewController:] + 28
14 UIKit 0x33544962 -[UINavigationController _startTransition:fromViewController:toViewController:] + 494
15 UIKit 0x335446a4 -[UINavigationController _startDeferredTransitionIfNeeded] + 244
16 UIKit 0x3358ea8c _popViewControllerNormal + 184
17 UIKit 0x3358e8ba -[UINavigationController _popViewControllerWithTransition:allowPoppingLast:] + 386
18 UIKit 0x3358ee1a -[UINavigationController navigationBar:shouldPopItem:] + 146
19 UIKit 0x3358ec30 -[UINavigationBar _popNavigationItemWithTransition:] + 92
20 UIKit 0x335de3e8 -[UINavigationBar popNavigationItemAnimated:] + 116
21 UIKit 0x335de276 -[UINavigationBar _handleMouseUpAtPoint:] + 918
22 UIKit 0x335dded4 -[UINavigationBar touchesEnded:withEvent:] + 76
23 UIKit 0x33519acc -[UIWindow _sendTouchesForEvent:] + 312
24 UIKit 0x335194ba -[UIWindow sendEvent:] + 374
25 UIKit 0x334ff836 -[UIApplication sendEvent:] + 350
26 UIKit 0x334ff0dc _UIApplicationHandleEvent + 5820
27 GraphicsServices 0x33def224 PurpleEventCallback + 876
28 CoreFoundation 0x30cd5acc __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 8
29 CoreFoundation 0x30cd5298 __CFRunLoopDoSources0 + 208
30 CoreFoundation 0x30cd403e __CFRunLoopRun + 646
31 CoreFoundation 0x30c5749e CFRunLoopRunSpecific + 294
32 CoreFoundation 0x30c57366 CFRunLoopRunInMode + 98
33 GraphicsServices 0x33dee432 GSEventRunModal + 130
34 UIKit 0x3352de76 UIApplicationMain + 1074
35 Body-Language 0x000b6050 main (main.m:16)
36 Body-Language 0x000b6004 0x00003004
Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x3416b3a8 kevent + 24
1 libdispatch.dylib 0x36848ea4 _dispatch_mgr_invoke + 708
2 libdispatch.dylib 0x36848bc2 _dispatch_mgr_thread + 30
Thread 2 name: WebThread
Thread 2:
0 libsystem_kernel.dylib 0x3416b004 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3416b1fa mach_msg + 50
2 CoreFoundation 0x30cd53ec __CFRunLoopServiceMachPort + 120
3 CoreFoundation 0x30cd4124 __CFRunLoopRun + 876
4 CoreFoundation 0x30c5749e CFRunLoopRunSpecific + 294
5 CoreFoundation 0x30c57366 CFRunLoopRunInMode + 98
6 WebCore 0x31fe60f0 _ZL12RunWebThreadPv + 396
7 libsystem_c.dylib 0x375f772e _pthread_start + 314
8 libsystem_c.dylib 0x375f75e8 thread_start + 0
Thread 3:
0 libsystem_kernel.dylib 0x3417bcd4 __workq_kernreturn + 8
1 libsystem_c.dylib 0x375f1f36 _pthread_wqthread + 610
2 libsystem_c.dylib 0x375f1cc8 start_wqthread + 0
Thread 4:
0 libsystem_kernel.dylib 0x3417bcd4 __workq_kernreturn + 8
1 libsystem_c.dylib 0x375f1f36 _pthread_wqthread + 610
2 libsystem_c.dylib 0x375f1cc8 start_wqthread + 0
Binary Images:
0xb4000 - 0xc8fff +Body-Language armv7 <56aee943e3d332288398701c95575fbd> /var/mobile/Applications/2489EE05-177C-4AD1-BE3A-7B7158E13D82/Body-Language.app/Body-Language
0x2feb3000 - 0x2fed4fff dyld armv7 <4a817f3e0def30d5ae2032157d889c1d> /usr/lib/dyld
0x3006d000 - 0x300b7fff libvDSP.dylib armv7 <441b42aca07b3da39feab25f8349918f> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvDSP.dylib
0x303b4000 - 0x303b5fff libsystem_sandbox.dylib armv7 <66e985f3eea03ef08afb7cf4c153f76e> /usr/lib/system/libsystem_sandbox.dylib
0x303bc000 - 0x303bffff libmacho.dylib armv7 <e52b77623bd031bc807e77029566c777> /usr/lib/system/libmacho.dylib
0x303c2000 - 0x303c4fff libCoreVMClient.dylib armv7 <d4d4aa3090c83e87bcb15ed00b93fd5c> /System/Library/Frameworks/OpenGLES.framework/libCoreVMClient.dylib
0x303cc000 - 0x303dbfff SpringBoardServices armv7 <ca5b10014b473d2eaec5c48d89ee1b54> /System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices
0x304b6000 - 0x304b7fff DataMigration armv7 <d77f0e8f39ee37f5a2ac713a3fd9e693> /System/Library/PrivateFrameworks/DataMigration.framework/DataMigration
0x304b8000 - 0x304c1fff libMobileGestalt.dylib armv7 <4a15e845dc6f3a4a980de66c1cc44c42> /usr/lib/libMobileGestalt.dylib
0x304c3000 - 0x30641fff Foundation armv7 <c40ddb073142315bb4ebb214343d0b7f> /System/Library/Frameworks/Foundation.framework/Foundation
0x30642000 - 0x3064efff libCRFSuite.dylib armv7 <bdb2b4d1a78c39c1ba60d791207aed2a> /usr/lib/libCRFSuite.dylib
0x3083a000 - 0x30912fff vImage armv7 <caf3648be2933384b6aa1ae7408ab4f0> /System/Library/Frameworks/Accelerate.framework/Frameworks/vImage.framework/vImage
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0x30960000 - 0x3096cfff libz.1.dylib armv7 <36ce86a3dc8c344596c8c325615f374b> /usr/lib/libz.1.dylib
0x30a1a000 - 0x30a3afff libKoreanConverter.dylib armv7 <15f15046a86c3c40b328d28b9fa4e4e2> /System/Library/CoreServices/Encodings/libKoreanConverter.dylib
0x30a3b000 - 0x30a41fff libnotify.dylib armv7 <9406297de3e43742887890662a87ab53> /usr/lib/system/libnotify.dylib
0x30b1c000 - 0x30b1cfff vecLib armv7 <a2cfe25e77aa36bfb4a30b2d0d2dd465> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/vecLib
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0x30d60000 - 0x30e26fff libobjc.A.dylib armv7 <90014d1bc583366d85622e43097df416> /usr/lib/libobjc.A.dylib
0x30e27000 - 0x30e2cfff libsystem_dnssd.dylib armv7 <27bb5462450732e380f5a2c170546e93> /usr/lib/system/libsystem_dnssd.dylib
0x30e2f000 - 0x30e64fff SystemConfiguration armv7 <4464a4e3bb3f32f7abaa35ebf31fda49> /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
0x30e65000 - 0x31022fff ImageIO armv7 <02e3578171fa3b6a969b244275fd2bab> /System/Library/Frameworks/ImageIO.framework/ImageIO
0x31023000 - 0x31028fff libcopyfile.dylib armv7 <52e874396c393ed29099789ce702cfe2> /usr/lib/system/libcopyfile.dylib
0x3136e000 - 0x31371fff CaptiveNetwork armv7 <f5cc4b97ce9432da9426f12621453325> /System/Library/PrivateFrameworks/CaptiveNetwork.framework/CaptiveNetwork
0x31468000 - 0x3147efff EAP8021X armv7 <fffe86a22bc434a6ae84f23bfecef9d6> /System/Library/PrivateFrameworks/EAP8021X.framework/EAP8021X
0x314c4000 - 0x314cafff liblaunch.dylib armv7 <aa2bcba6fc7a36a191958fef2e995475> /usr/lib/system/liblaunch.dylib
0x3166f000 - 0x3167afff AccountSettings armv7 <373e59421d983c93931cfbad87b1ae35> /System/Library/PrivateFrameworks/AccountSettings.framework/AccountSettings
0x316ef000 - 0x31700fff libxpc.dylib armv7 <ccf25b1e49ce3b2fa58d8c8546755505> /usr/lib/system/libxpc.dylib
0x3171a000 - 0x31727fff libbsm.0.dylib armv7 <750a0de73a733019a77144b805d4d2f8> /usr/lib/libbsm.0.dylib
0x31728000 - 0x31768fff libGLImage.dylib armv7 <40448706190031f6b0d9636cc11ee81d> /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib
0x318c8000 - 0x31998fff WebKit armv7 <6ff2796c2f933050ac6ecdee9fc6a216> /System/Library/PrivateFrameworks/WebKit.framework/WebKit
0x31a6b000 - 0x31a6bfff libkeymgr.dylib armv7 <ebd2dddf55d83cf48a18913968775960> /usr/lib/system/libkeymgr.dylib
0x31b89000 - 0x31b8bfff MobileInstallation armv7 <215d93dbb0f63cbf828f9126eb7b5349> /System/Library/PrivateFrameworks/MobileInstallation.framework/MobileInstallation
0x31f01000 - 0x31f01fff libCVMSPluginSupport.dylib armv7 <a80aaa9989483ce3a496a061fd1e9e0a> /System/Library/Frameworks/OpenGLES.framework/libCVMSPluginSupport.dylib
0x31f25000 - 0x31f34fff OpenGLES armv7 <e80acc691001301e96101bb89d940033> /System/Library/Frameworks/OpenGLES.framework/OpenGLES
0x31f3d000 - 0x326fbfff WebCore armv7 <814351ff217e3425a8e532c2e2251f73> /System/Library/PrivateFrameworks/WebCore.framework/WebCore
0x326fc000 - 0x32710fff PersistentConnection armv7 <65682d21486836a3aa3e17b9461e7b3a> /System/Library/PrivateFrameworks/PersistentConnection.framework/PersistentConnection
0x32711000 - 0x3275bfff ManagedConfiguration armv7 <5e0a131bbfec305ea01f9e01f486da63> /System/Library/PrivateFrameworks/ManagedConfiguration.framework/ManagedConfiguration
0x3275c000 - 0x32779fff libsystem_info.dylib armv7 <50863bcbf478323e96a8e5b1a83ea6f9> /usr/lib/system/libsystem_info.dylib
0x3280d000 - 0x32811fff IOSurface armv7 <6ae77a40f8e93f28bc466ca93f5675d4> /System/Library/PrivateFrameworks/IOSurface.framework/IOSurface
0x32845000 - 0x3298efff libicucore.A.dylib armv7 <b70646b63f1f3b33896dd8cb91b8dab1> /usr/lib/libicucore.A.dylib
0x32a8e000 - 0x32a91fff CoreTime armv7 <a398de5ba1e43a11b7008e9bb5a7f6fe> /System/Library/PrivateFrameworks/CoreTime.framework/CoreTime
0x32a92000 - 0x32a93fff libremovefile.dylib armv7 <402f8956975d3b6fb86ab9b31a43242c> /usr/lib/system/libremovefile.dylib
0x32b62000 - 0x32b62fff libgcc_s.1.dylib armv7 <eb82984fa36c329387aa518aa5205f3d> /usr/lib/libgcc_s.1.dylib
0x32bb5000 - 0x32bfdfff CoreMedia armv7 <eb1f503312be3c93b07b2d0d25177000> /System/Library/Frameworks/CoreMedia.framework/CoreMedia
0x32d5c000 - 0x32d60fff AggregateDictionary armv7 <3a3a33f3a05538988c6e2bb363dc46a8> /System/Library/PrivateFrameworks/AggregateDictionary.framework/AggregateDictionary
0x330fb000 - 0x330fefff NetworkStatistics armv7 <7848d8ebad99367cb4f7f4e3fe88e5d6> /System/Library/PrivateFrameworks/NetworkStatistics.framework/NetworkStatistics
0x3313e000 - 0x33322fff AudioToolbox armv7 <c91e27850452330ea804db6408840fd2> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox
0x333da000 - 0x33416fff AppSupport armv7 <311eac85b2a433a884dacba77217b49e> /System/Library/PrivateFrameworks/AppSupport.framework/AppSupport
0x334e3000 - 0x334e7fff libcache.dylib armv7 <d6a7436ed8dc33d795c9b42baf864882> /usr/lib/system/libcache.dylib
0x334fc000 - 0x3399efff UIKit armv7 <d72bcc68e76a3a55a963590cdcffe8cd> /System/Library/Frameworks/UIKit.framework/UIKit
0x339e6000 - 0x339fbfff libresolv.9.dylib armv7 <66f7557fa4b43979b186e00271839fdb> /usr/lib/libresolv.9.dylib
0x33a02000 - 0x33a06fff IOMobileFramebuffer armv7 <42dbc26828e934acabb4f3b0a35d8250> /System/Library/PrivateFrameworks/IOMobileFramebuffer.framework/IOMobileFramebuffer
0x33a07000 - 0x33a11fff libvMisc.dylib armv7 <e8248c797b9b363594bb652ddf7ce16d> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvMisc.dylib
0x33a1a000 - 0x33b3ffff JavaScriptCore armv7 <2ffc6c87b94434288366bd53765ee267> /System/Library/PrivateFrameworks/JavaScriptCore.framework/JavaScriptCore
0x33b4f000 - 0x33b98fff AddressBook armv7 <b17a2962e9043e0385c3c2c652155f2b> /System/Library/Frameworks/AddressBook.framework/AddressBook
0x33c52000 - 0x33cfcfff libBLAS.dylib armv7 <bf822cc1a3243ae7b104cf73ca22d352> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libBLAS.dylib
0x33d09000 - 0x33d22fff libRIP.A.dylib armv7 <1828cddc5dd93c61afbefb59587d7f8a> /System/Library/Frameworks/CoreGraphics.framework/Resources/libRIP.A.dylib
0x33dea000 - 0x33df4fff GraphicsServices armv7 <e21a6e61bdd136b6805a9e3abe2e3d1f> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
0x33e9d000 - 0x33e9dfff liblangid.dylib armv7 <644ff4bcfbf337b5b5859e3f0fc0a9a8> /usr/lib/liblangid.dylib
0x33f33000 - 0x33f76fff libcommonCrypto.dylib armv7 <95b49daf4cf038b6bea8010bba3a1e26> /usr/lib/system/libcommonCrypto.dylib
0x33fac000 - 0x33fbdfff DataAccessExpress armv7 <e6144ba265da3bb7b9a263aa1a29b054> /System/Library/PrivateFrameworks/DataAccessExpress.framework/DataAccessExpress
0x33fc8000 - 0x33fd4fff CoreVideo armv7 <364fa32d513f3c11b50970120545f1a8> /System/Library/Frameworks/CoreVideo.framework/CoreVideo
0x33fd5000 - 0x34023fff CoreLocation armv7 <44550ebedf23334d85441d9743b74e03> /System/Library/Frameworks/CoreLocation.framework/CoreLocation
0x34070000 - 0x3415efff libiconv.2.dylib armv7 <2cfefe2ad1d335dd9549562910e7a2e2> /usr/lib/libiconv.2.dylib
0x3416a000 - 0x34180fff libsystem_kernel.dylib armv7 <7ac5560851ce3cb3981068092074b409> /usr/lib/system/libsystem_kernel.dylib
0x3425b000 - 0x342b3fff CoreAudio armv7 <be335e8eb6f93594b028a6ddd503a183> /System/Library/Frameworks/CoreAudio.framework/CoreAudio
0x342d3000 - 0x342dbfff MobileWiFi armv7 <b76c3e9fb78234c392058250d4620e72> /System/Library/PrivateFrameworks/MobileWiFi.framework/MobileWiFi
0x342e0000 - 0x34305fff OpenCL armv7 <ec915bfc3f7633dda61b5fc87459119b> /System/Library/PrivateFrameworks/OpenCL.framework/OpenCL
0x34714000 - 0x3471afff MobileKeyBag armv7 <e1f06241ef0e3f0aae00f15df572077e> /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag
0x347eb000 - 0x34806fff libJapaneseConverter.dylib armv7 <0db483beb91f367f9fe26d93fd8f5e49> /System/Library/CoreServices/Encodings/libJapaneseConverter.dylib
0x34807000 - 0x34ac8fff libLAPACK.dylib armv7 <0e94e9a7e7a334649afaccae0f1215a2> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libLAPACK.dylib
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0x35ae4000 - 0x35ae5fff libdnsinfo.dylib armv7 <9aede8d6579d3430ac39ae5f95cce498> /usr/lib/system/libdnsinfo.dylib
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0x3735f000 - 0x37436fff CFNetwork armv7 <765a472c824830eea91b8f02d12867e4> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x375e7000 - 0x375e8fff CoreSurface armv7 <7850befd26b630f183ee326aaadd7b34> /System/Library/PrivateFrameworks/CoreSurface.framework/CoreSurface
0x375e9000 - 0x37675fff libsystem_c.dylib armv7 <f859ce1ad1773f0ba98d7c6e135b7697> /usr/lib/system/libsystem_c.dylib
0x376b0000 - 0x376b3fff libsystem_network.dylib armv7 <356cb66612e836968ef24e6e5c3364cc> /usr/lib/system/libsystem_network.dylib
0x376b6000 - 0x3772ffff ProofReader armv7 <6db611d8df6530d480f97a40bc519f70> /System/Library/PrivateFrameworks/ProofReader.framework/ProofReader
0x37730000 - 0x37733fff libcompiler_rt.dylib armv7 <b2c05d8601c13be884097192dca4e187> /usr/lib/system/libcompiler_rt.dylib
0x3780c000 - 0x37844fff VideoToolbox armv7 <9f25f38d1cd13a1daff99cfde8884410> /System/Library/PrivateFrameworks/VideoToolbox.framework/VideoToolbox
0x378d2000 - 0x378e1fff GenerationalStorage armv7 <d84c3fd0e7bd36e78c256f2f4c5a4e91> /System/Library/PrivateFrameworks/GenerationalStorage.framework/GenerationalStorage
0x378e2000 - 0x378e8fff MobileIcons armv7 <ed1b46f917903c9b9baaa2be4392dafe> /System/Library/PrivateFrameworks/MobileIcons.framework/MobileIcons
0x37a9a000 - 0x37bdffff CoreGraphics armv7 <903545b89a7f311d95100ac7d1d44709> /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
Looks like an object was deallocated yet the code assumed it was valid. Have you tried running "Zombies" in Instruments? It will tell you where you sent a message to an invalid object. If you're using that with Emulator, be sure to do Hardware->Send Memory Warning frequently as you try to reproduce.
来源：https://stackoverflow.com/questions/9839756/exc-bad-access-sigsegv