My app crashes the very first time it runs/installs. After that it's fine. It also appears that this issue resolved itself with iOS. I'm currently working on an update and it would be great to have it at 100% health.
Here's the crash log
Although I'm getting my head around obj-c slowly crash logs are still Martian to me – any helpful pointers please (pun intended).
Incident Identifier: 142E153B-0885-4775-A554-2D74DB4EE3E3
CrashReporter Key: d7848ba3b41e11c0a632dbd2e03a125c438a70d7
Hardware Model: iPod2,1
Process: MYAPP [331]
Path: /var/mobile/Applications/1D041F34-447C-47BB-BCF9-E8A9D3C4FDBC/MYAPP.app/MYAPP
Identifier: MYAPP
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2011-11-18 14:47:44.892 +0000
OS Version: iPhone OS 4.2.1 (8C148)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x00000001
Crashed Thread: 0
Thread 0 Crashed:
0 libobjc.A.dylib 0x30183f1c objc_msgSend + 16
1 Foundation 0x33fbf230 _NSDescriptionWithLocaleFunc + 30
2 CoreFoundation 0x35e837ca __CFStringAppendFormatCore + 5518
3 CoreFoundation 0x35e82208 _CFStringCreateWithFormatAndArgumentsAux + 68
4 CoreFoundation 0x35e9fa26 _CFLogvEx + 70
5 Foundation 0x33fc0210 NSLogv + 58
6 Foundation 0x33fc01c6 NSLog + 18
7 MYAPP 0x0001edda 0x1000 + 122330
8 UIKit 0x3386cfd0 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1108
9 UIKit 0x33866a70 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 388
10 UIKit 0x338202dc -[UIApplication handleEvent:withNewEvent:] + 1468
11 UIKit 0x3381fb14 -[UIApplication sendEvent:] + 60
12 UIKit 0x3381f3ac _UIApplicationHandleEvent + 6816
13 GraphicsServices 0x35262c80 PurpleEventCallback + 1040
14 CoreFoundation 0x35e9a5c4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 22
15 CoreFoundation 0x35e9a582 __CFRunLoopDoSource1 + 158
16 CoreFoundation 0x35e8c82e __CFRunLoopRun + 574
17 CoreFoundation 0x35e8c504 CFRunLoopRunSpecific + 220
18 CoreFoundation 0x35e8c412 CFRunLoopRunInMode + 54
19 UIKit 0x3386554c -[UIApplication _run] + 540
20 UIKit 0x33862550 UIApplicationMain + 964
21 MYAPP 0x00002c8e 0x1000 + 7310
22 MYAPP 0x00002c58 0x1000 + 7256
Thread 1:
0 libSystem.B.dylib 0x32cd1974 kevent + 24
1 libSystem.B.dylib 0x32da02fc _dispatch_mgr_invoke + 88
2 libSystem.B.dylib 0x32d9fd68 _dispatch_queue_invoke + 96
3 libSystem.B.dylib 0x32d9f788 _dispatch_worker_thread2 + 120
4 libSystem.B.dylib 0x32d28970 _pthread_wqthread + 392
5 libSystem.B.dylib 0x32d1f2fc start_wqthread + 0
Thread 2:
0 libSystem.B.dylib 0x32d292fc __workq_kernreturn + 8
1 libSystem.B.dylib 0x32d28b50 _pthread_wqthread + 872
2 libSystem.B.dylib 0x32d1f2fc start_wqthread + 0
Thread 3:
0 libSystem.B.dylib 0x32c9d3b0 mach_msg_trap + 20
1 libSystem.B.dylib 0x32c9f894 mach_msg + 60
2 CoreFoundation 0x35e8cf7c __CFRunLoopServiceMachPort + 88
3 CoreFoundation 0x35e8c780 __CFRunLoopRun + 400
4 CoreFoundation 0x35e8c504 CFRunLoopRunSpecific + 220
5 CoreFoundation 0x35e8c412 CFRunLoopRunInMode + 54
6 WebCore 0x369e7d14 RunWebThread(void*) + 524
7 libSystem.B.dylib 0x32d27b44 _pthread_start + 364
8 libSystem.B.dylib 0x32d197a4 thread_start + 0
Thread 0 crashed with ARM Thread State:
r0: 0x00000001 r1: 0x33c278ef r2: 0x35f49a2c r3: 0x0000000c
r4: 0x00000001 r5: 0x35f49a2c r6: 0x00000000 r7: 0x2fdfd424
r8: 0x00000054 r9: 0x2fdfd3c4 r10: 0x2fdfd5ae r11: 0x2fdfd594
ip: 0x3e44e568 sp: 0x2fdfd408 lr: 0x33fbf237 pc: 0x30183f1c
cpsr: 0x000f0010
Binary Images:
0x1000 - 0x53fff +MYAPP armv6 <cecbc9b876193bed85a9048b0ef16cc8> /var/mobile/Applications/1D041F34-447C-47BB-BCF9-E8A9D3C4FDBC/PwC UK.app/PwC UK
0xed000 - 0xeefff dns.so armv6 <88b569311cca4a9593b2d670051860d1> /usr/lib/info/dns.so
0x2fe00000 - 0x2fe29fff dyld armv6 <617f6daf4103547c47a8407a2e0b90de> /usr/lib/dyld
0x30180000 - 0x30247fff libobjc.A.dylib armv6 <429841269f8bcecd4ba3264a8725dad6> /usr/lib/libobjc.A.dylib
0x30248000 - 0x30356fff CFNetwork armv6 <d6eeee83216ee9c553134f069f37cbc2> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x30359000 - 0x3037afff libRIP.A.dylib armv6 <22c6da37f3adf325f99c3a0494e04c02> /System/Library/Frameworks/CoreGraphics.framework/Resources/libRIP.A.dylib
0x3037b000 - 0x3037efff libgcc_s.1.dylib armv6 <bed95ed187350ce27d22ed241ef892ea> /usr/lib/libgcc_s.1.dylib
0x303e6000 - 0x3059cfff AudioToolbox armv6 <bb65e8ed531fe5923eb8ac00a7c0d87d> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox
0x305a2000 - 0x306fffff libGLProgrammability.dylib armv6 <aec6b54ffd532bb607aab4acbab679b6> /System/Library/Frameworks/OpenGLES.framework/libGLProgrammability.dylib
0x3076a000 - 0x30770fff MBX2D armv6 <fad4955cab36e0179df6f8f27d365b8f> /System/Library/PrivateFrameworks/MBX2D.framework/MBX2D
0x3077c000 - 0x307f4fff EventKit armv6 <c1fb82d645d3bf1f2e0558cc884712e9> /System/Library/Frameworks/EventKit.framework/EventKit
0x30859000 - 0x30866fff CoreVideo armv6 <7b100fd5fdf98db1cd0f0649e7f6f316> /System/Library/Frameworks/CoreVideo.framework/CoreVideo
0x3089e000 - 0x308a3fff CaptiveNetwork armv6 <f41df4b358b77b29ff85e0eaea88ee1d> /System/Library/PrivateFrameworks/CaptiveNetwork.framework/CaptiveNetwork
0x308a4000 - 0x30965fff AddressBookUI armv6 <fea72732451610277e22a667d35ad76d> /System/Library/Frameworks/AddressBookUI.framework/AddressBookUI
0x309a9000 - 0x309c9fff AppleAccount armv6 <0ef3f6564414f3ef030031ae25b28bbd> /System/Library/PrivateFrameworks/AppleAccount.framework/AppleAccount
0x309d7000 - 0x309d8fff DataMigration armv6 <d2de7c0db77278484236669c2cdccabb> /System/Library/PrivateFrameworks/DataMigration.framework/DataMigration
0x30adb000 - 0x30b1efff CoreTelephony armv6 <cabbce0fa7630065dc7e7d3ca3bc616c> /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony
0x32c9c000 - 0x32ddafff libSystem.B.dylib armv6 <70571c1e697e2ae7f7a9b1a499453bb6> /usr/lib/libSystem.B.dylib
0x32ddb000 - 0x32ea5fff Celestial armv6 <11172a6ee53bdf067548cd4496bc5fe0> /System/Library/PrivateFrameworks/Celestial.framework/Celestial
0x32ee6000 - 0x32f42fff libGLImage.dylib armv6 <7c1049f20c4e64591c09d3ac00c7d3ab> /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib
0x33035000 - 0x33035fff vecLib armv6 <8f914b3e8a581d49fb21d2c0ff75be03> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/vecLib
0x3319f000 - 0x331a7fff ProtocolBuffer armv6 <8ed6e560e85eecfaf625219a8247aea4> /System/Library/PrivateFrameworks/ProtocolBuffer.framework/ProtocolBuffer
0x331fc000 - 0x331fffff MobileInstallation armv6 <456ed7fe6dd9fcd8e78df425085b1452> /System/Library/PrivateFrameworks/MobileInstallation.framework/MobileInstallation
0x33201000 - 0x3320cfff libbz2.1.0.dylib armv6 <6aa8a4ed0906a495d059ace9125f525d> /usr/lib/libbz2.1.0.dylib
0x33268000 - 0x3326dfff IOSurface armv6 <ffd66ca04dfe7d382d6961f0df3839ff> /System/Library/PrivateFrameworks/IOSurface.framework/IOSurface
0x3326e000 - 0x33273fff libGFXShared.dylib armv6 <bd1c480607cc286288db1ca1aec64180> /System/Library/Frameworks/OpenGLES.framework/libGFXShared.dylib
0x33274000 - 0x33276fff IOMobileFramebuffer armv6 <f42bbbf67195a7b98d67ad021bba4784> /System/Library/PrivateFrameworks/IOMobileFramebuffer.framework/IOMobileFramebuffer
0x3328b000 - 0x3328cfff CoreSurface armv6 <5e290514380c626e9b0f9f9985b9dc7a> /System/Library/PrivateFrameworks/CoreSurface.framework/CoreSurface
0x3330c000 - 0x33317fff MobileWiFi armv6 <c7532e63e083a1dd2a0ef7352b85749d> /System/Library/PrivateFrameworks/MobileWiFi.framework/MobileWiFi
0x3337a000 - 0x3337efff ApplePushService armv6 <0560b630d26e261e205fc58942e1885c> /System/Library/PrivateFrameworks/ApplePushService.framework/ApplePushService
0x3337f000 - 0x3337ffff Accelerate armv6 <cdde24a7ad004b2b2e600cd4f3ac5eb7> /System/Library/Frameworks/Accelerate.framework/Accelerate
0x33417000 - 0x33476fff CoreAudio armv6 <ccc4bace0d6eca79a32ed84d566f72e9> /System/Library/Frameworks/CoreAudio.framework/CoreAudio
0x33477000 - 0x3348dfff PersistentConnection armv6 <006723906b8ac250c1681a1821fbe94d> /System/Library/PrivateFrameworks/PersistentConnection.framework/PersistentConnection
0x33490000 - 0x33494fff CertUI armv6 <57c499baf9d343a78fe1b43f0f3ef997> /System/Library/PrivateFrameworks/CertUI.framework/CertUI
0x334a1000 - 0x334e5fff AddressBook armv6 <1f30c3370dad27331a491ba4b190813c> /System/Library/Frameworks/AddressBook.framework/AddressBook
0x334e6000 - 0x33505fff EAP8021X armv6 <fa56845b5396c3ebb368c2368331643c> /System/Library/PrivateFrameworks/EAP8021X.framework/EAP8021X
0x3358f000 - 0x335fffff libsqlite3.dylib armv6 <87b9bb47687902d9120d03d1da9eb9fc> /usr/lib/libsqlite3.dylib
0x33600000 - 0x33605fff AssetsLibraryServices armv6 <224b3cf992a01814f91481244e3213eb> /System/Library/PrivateFrameworks/AssetsLibraryServices.framework/AssetsLibraryServices
0x33620000 - 0x33627fff libMobileGestalt.dylib armv6 <de9b417e7278742e90b30b1ad45f31fa> /usr/lib/libMobileGestalt.dylib
0x3362d000 - 0x33671fff VideoToolbox armv6 <101dbbcd34cc3231a8be3fd6392556aa> /System/Library/PrivateFrameworks/VideoToolbox.framework/VideoToolbox
0x337c7000 - 0x3381afff IOKit armv6 <20da5e822f21a8d0a7c5b3e149330efd> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x3381b000 - 0x33c97fff UIKit armv6 <14ec6c926b8bda71b73136f6e1a6ac1b> /System/Library/Frameworks/UIKit.framework/UIKit
0x33ced000 - 0x33d0bfff libresolv.9.dylib armv6 <9c94634beea733e754dc115737b6e63c> /usr/lib/libresolv.9.dylib
0x33d0c000 - 0x33e14fff CoreData armv6 <6e3af4b4648ae695f8d4bc0bf5a9dba5> /System/Library/Frameworks/CoreData.framework/CoreData
0x33e15000 - 0x33f9cfff CoreGraphics armv6 <9a1d72fa9549d83abc1e735ba37a4dc2> /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
0x33fb3000 - 0x340d4fff Foundation armv6 <6bdeb19a1fcb93e2930dadb50416f881> /System/Library/Frameworks/Foundation.framework/Foundation
0x340d5000 - 0x340e8fff libmis.dylib armv6 <dba9c086b49bd9540930ff27211570d6> /usr/lib/libmis.dylib
0x340ea000 - 0x340edfff libAccessibility.dylib armv6 <74e0f77cc276a9412be268c795fdcbca> /usr/lib/libAccessibility.dylib
0x341bc000 - 0x34389fff MediaToolbox armv6 <21ceabd0e5de17ad4e883c85fcd34d51> /System/Library/PrivateFrameworks/MediaToolbox.framework/MediaToolbox
0x3438c000 - 0x3439ffff Notes armv6 <acf9e548948ecb299270c8398ef297a1> /System/Library/PrivateFrameworks/Notes.framework/Notes
0x343a0000 - 0x343fafff MessageUI armv6 <21bb9d93911f7015b79aef9dc6df55ef> /System/Library/Frameworks/MessageUI.framework/MessageUI
0x343fb000 - 0x3449afff ProofReader armv6 <2734920b62f174c17aeeb15f371615ef> /System/Library/PrivateFrameworks/ProofReader.framework/ProofReader
0x3449b000 - 0x344a7fff libkxld.dylib armv6 <f74f359de7bbe3ccdc37fa6f332aebf4> /usr/lib/system/libkxld.dylib
0x344a8000 - 0x344f1fff CoreLocation armv6 <a69399375024b2bfae8bb96e845f4fd0> /System/Library/Frameworks/CoreLocation.framework/CoreLocation
0x346d1000 - 0x346dbfff AccountSettings armv6 <eca67ab04f724e1fa7c6406c88e75433> /System/Library/PrivateFrameworks/AccountSettings.framework/AccountSettings
0x346dc000 - 0x347c8fff QuartzCore armv6 <77cd91ff21fe6c58c309f2c82eb95ca5> /System/Library/Frameworks/QuartzCore.framework/QuartzCore
0x347f5000 - 0x34801fff SpringBoardServices armv6 <fd0c472436b3306f5b56118c93c8a423> /System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices
0x34879000 - 0x34884fff ITSync armv6 <a451205e89373cbdf0832688085e8f72> /System/Library/PrivateFrameworks/ITSync.framework/ITSync
0x34885000 - 0x348c7fff ManagedConfiguration armv6 <397723a33c19c3487d304d69580acbfc> /System/Library/PrivateFrameworks/ManagedConfiguration.framework/ManagedConfiguration
0x348c8000 - 0x348cbfff CrashReporterSupport armv6 <00bc60f690e6328b64e7a7b718edf45a> /System/Library/PrivateFrameworks/CrashReporterSupport.framework/CrashReporterSupport
0x349b3000 - 0x34a9cfff MapKit armv6 <d28b96a0107a7822fda677ed28901c0c> /System/Library/Frameworks/MapKit.framework/MapKit
0x34b0f000 - 0x34edcfff libLAPACK.dylib armv6 <0eb734c91165416224b98c943ff6476b> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libLAPACK.dylib
0x34ef3000 - 0x34fcffff WebKit armv6 <83da207070be989ba81dba3a83d5206a> /System/Library/PrivateFrameworks/WebKit.framework/WebKit
0x34ff2000 - 0x35001fff OpenGLES armv6 <37eda5ddcff210dd321157da35a87a5e> /System/Library/Frameworks/OpenGLES.framework/OpenGLES
0x35074000 - 0x3518bfff libicucore.A.dylib armv6 <8968ff3f62d7780bb1bd75026a7628d0> /usr/lib/libicucore.A.dylib
0x35196000 - 0x351c1fff MobileSync armv6 <b42cf746d993e6765d432edf47987835> /System/Library/PrivateFrameworks/MobileSync.framework/MobileSync
0x35220000 - 0x35234fff MobileDeviceLink armv6 <19d66078f8cf19be558713c13612c7a3> /System/Library/PrivateFrameworks/MobileDeviceLink.framework/MobileDeviceLink
0x3525d000 - 0x3526cfff GraphicsServices armv6 <af20aba0ec96e7b7c42bb55ac763c784> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
0x3526d000 - 0x352b0fff SystemConfiguration armv6 <207f362e707871e74a292cfd1ea7893d> /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
0x354cb000 - 0x354d1fff MobileKeyBag armv6 <2d83bf6a43bab972d77a1a6e0f3b03d2> /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag
0x3564b000 - 0x3569afff Security armv6 <cf625b4dc7ea928891313444ef64a7cb> /System/Library/Frameworks/Security.framework/Security
0x357ca000 - 0x35835fff libstdc++.6.dylib armv6 <eccd1d7183e73587b2c0aa5755a19c39> /usr/lib/libstdc++.6.dylib
0x35851000 - 0x35885fff AppSupport armv6 <783e14db9585fd063c0c2a755cd121b6> /System/Library/PrivateFrameworks/AppSupport.framework/AppSupport
0x358fc000 - 0x35936fff MobileCoreServices armv6 <beb473ce80390554bb4af21554522286> /System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices
0x359b9000 - 0x35ccbfff GeoServices armv6 <570238d025d41838cc888a0b3f28f4b2> /System/Library/PrivateFrameworks/GeoServices.framework/GeoServices
0x35cdb000 - 0x35d25fff libCGFreetype.A.dylib armv6 <cfc94cfa17958f2f94c9eff208a7dace> /System/Library/Frameworks/CoreGraphics.framework/Resources/libCGFreetype.A.dylib
0x35d51000 - 0x35e47fff libxml2.2.dylib armv6 <9c44d05cc67f1ebabd795903e581724e> /usr/lib/libxml2.2.dylib
0x35e64000 - 0x35f4ffff CoreFoundation armv6 <ab0eac0ddd5b4ae1bf8541116e3c0bd1> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x35f76000 - 0x3606afff libiconv.2.dylib armv6 <01916d6784f4de8f3746978faae9c5fa> /usr/lib/libiconv.2.dylib
0x360c8000 - 0x360d4fff WebBookmarks armv6 <5d1eb10d851d0362e304d9d95f016df1> /System/Library/PrivateFrameworks/WebBookmarks.framework/WebBookmarks
0x360f0000 - 0x361edfff JavaScriptCore armv6 <3547c92c1efc0522b087e7f10eba7728> /System/Library/PrivateFrameworks/JavaScriptCore.framework/JavaScriptCore
0x361ee000 - 0x361fbfff MobileBluetooth armv6 <2b68516e1321011a4efbee2947d463c6> /System/Library/PrivateFrameworks/MobileBluetooth.framework/MobileBluetooth
0x366e5000 - 0x3674dfff GMM armv6 <adcdfedd491ac237b385b6c2d7f684e3> /System/Library/PrivateFrameworks/GMM.framework/GMM
0x36752000 - 0x36771fff Bom armv6 <f41bef81e23e2bff59155e5ce46762d3> /System/Library/PrivateFrameworks/Bom.framework/Bom
0x36826000 - 0x36830fff AggregateDictionary armv6 <f7429444c955e4f13c6761d20032ab52> /System/Library/PrivateFrameworks/AggregateDictionary.framework/AggregateDictionary
0x36849000 - 0x36850fff liblockdown.dylib armv6 <f470dea180ddf23886df75eb256d3888> /usr/lib/liblockdown.dylib
0x3686a000 - 0x3686dfff ActorKit armv6 <d3ec50b4a7f0257ef31baf37936dc275> /System/Library/PrivateFrameworks/ActorKit.framework/ActorKit
0x3689d000 - 0x368cbfff MIME armv6 <fac8f55c508ff476e07894af7abdb761> /System/Library/PrivateFrameworks/MIME.framework/MIME
0x368cc000 - 0x3711bfff WebCore armv6 <aa3b6827f051da7a3494c9bee4ebe290> /System/Library/PrivateFrameworks/WebCore.framework/WebCore
0x3713e000 - 0x3714cfff libz.1.dylib armv6 <84592e96bae1a661374b0f9a5d03a3a0> /usr/lib/libz.1.dylib
0x3714d000 - 0x3718dfff QuickLook armv6 <54400e0d48ec86c84e937e55790b9e54> /System/Library/Frameworks/QuickLook.framework/QuickLook
0x3718e000 - 0x371dcfff CoreText armv6 <16c9582fdffb598178287c6ce9fd6897> /System/Library/Frameworks/CoreText.framework/CoreText
0x371dd000 - 0x371eefff DataAccessExpress armv6 <c112bd2791eb706526db25407ec117d4> /System/Library/PrivateFrameworks/DataAccessExpress.framework/DataAccessExpress
0x371ef000 - 0x3722dfff ContentIndex armv6 <7f3334380acc72292571803f0b490189> /System/Library/PrivateFrameworks/ContentIndex.framework/ContentIndex
0x37378000 - 0x373defff libBLAS.dylib armv6 <11a3677a08175a30df1b3d66d7e0951a> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libBLAS.dylib
0x373df000 - 0x37436fff CoreMedia armv6 <cd5e9398c161f129146931e888e1c92e> /System/Library/Frameworks/CoreMedia.framework/CoreMedia
0x3757d000 - 0x375a7fff PrintKit armv6 <74f9710fa01a33b5bb04c4aeabd6be7d> /System/Library/PrivateFrameworks/PrintKit.framework/PrintKit
0x3777f000 - 0x37840fff ImageIO armv6 <0c1b6f466667ff345f2399d8142a9d10> /System/Library/Frameworks/ImageIO.framework/ImageIO
0x3784c000 - 0x37878fff DataAccess armv6 <8c045822d57a369835f5b40653a48838> /System/Library/PrivateFrameworks/DataAccess.framework/DataAccess
0x378b3000 - 0x3791bfff libvDSP.dylib armv6 <9d264733fc675943c082bd3b9b567b59> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvDSP.dylib
0x3791c000 - 0x379a5fff Message armv6 <9ed4944d998f99e69ba81afdda659bee> /System/Library/PrivateFrameworks/Message.framework/Message
0x379c9000 - 0x37a11fff iCalendar armv6 <fbb717874ea0ede24454a5def644ab69> /System/Library/PrivateFrameworks/iCalendar.framework/iCalendar
0x37a1f000 - 0x37a31fff libbsm.0.dylib armv6 <51e7bb18da9afa44a33e54e42fbd0707> /usr/lib/libbsm.0.dylib
You need to read this document here:
http://developer.apple.com/library/ios/#technotes/tn2151/_index.html#//apple_ref/doc/uid/DTS40008184
Basically when you build your project for App Store Distribution, you need to archive the project and also maintain a file containing your project's symbols. Doing this allows you to take a crash report (like the one you posted) and load it into your project and see the stack at the time of the crash as well as the exact line of code that caused the crash.
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