Phonegap On Resume App Crash - ios

Whenever my app is resuming from lock screen in iOS7, it is getting crashed. The problem is coming mostly in iOS7 devices and it is happening only when the screen is getting locked out automatically. When the I unlock the screen and press any html div or button in the app, the app crashes.
I already tried the solution posted here -
Workaround for PhoneGap, EXC_BAD_ACCESS on getDeviceInfo . It doesn't work.
The Crash log is below -
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0xbe4008d4
Triggered by Thread: 3
Thread 0:
0 libsystem_kernel.dylib 0x38590a84 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3859087c mach_msg + 36
2 CoreFoundation 0x2dc61554 __CFRunLoopServiceMachPort + 152
3 CoreFoundation 0x2dc5fcba __CFRunLoopRun + 858
4 CoreFoundation 0x2dbca46c CFRunLoopRunSpecific + 520
5 CoreFoundation 0x2dbca24e CFRunLoopRunInMode + 102
6 GraphicsServices 0x329042e6 GSEventRunModal + 134
7 UIKit 0x3047f840 UIApplicationMain + 1132
8 SkiWithMe 0x0005f646 0x3f000 + 132678
9 libdyld.dylib 0x384ecab4 start + 0
Thread 1:
0 libsystem_kernel.dylib 0x38590838 kevent64 + 24
1 libdispatch.dylib 0x384df0d0 _dispatch_mgr_invoke + 228
2 libdispatch.dylib 0x384d961e _dispatch_mgr_thread + 34
Thread 2 name: com.apple.NSURLConnectionLoader
Thread 2:
0 libsystem_kernel.dylib 0x38590a84 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3859087c mach_msg + 36
2 CoreFoundation 0x2dc61554 __CFRunLoopServiceMachPort + 152
3 CoreFoundation 0x2dc5fc74 __CFRunLoopRun + 788
4 CoreFoundation 0x2dbca46c CFRunLoopRunSpecific + 520
5 CoreFoundation 0x2dbca24e CFRunLoopRunInMode + 102
6 Foundation 0x2e6054bc +[NSURLConnection(Loader) _resourceLoadLoop:] + 316
7 Foundation 0x2e67ac32 __NSThread__main__ + 1058
8 libsystem_pthread.dylib 0x38609c5a _pthread_body + 138
9 libsystem_pthread.dylib 0x38609bca _pthread_start + 98
10 libsystem_pthread.dylib 0x38607ccc thread_start + 4
Thread 3 name: WebThread
Thread 3 Crashed:
0 WebCore 0x35b08dba WebCore::TimerBase::heapDeleteMin() + 30
1 WebCore 0x35b08ca2 WebCore::ThreadTimers::sharedTimerFiredInternal() + 90
2 WebCore 0x35b08c1e WebCore::timerFired(__CFRunLoopTimer*, void*) + 22
3 CoreFoundation 0x2dc61e7c __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 12
4 CoreFoundation 0x2dc61a96 __CFRunLoopDoTimer + 790
5 CoreFoundation 0x2dc5fe1e __CFRunLoopRun + 1214
6 CoreFoundation 0x2dbca46c CFRunLoopRunSpecific + 520
7 CoreFoundation 0x2dbca24e CFRunLoopRunInMode + 102
8 WebCore 0x35b970c0 RunWebThread(void*) + 416
9 libsystem_pthread.dylib 0x38609c5a _pthread_body + 138
10 libsystem_pthread.dylib 0x38609bca _pthread_start + 98
11 libsystem_pthread.dylib 0x38607ccc thread_start + 4
Thread 4:
0 libsystem_kernel.dylib 0x38590a84 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3859087c mach_msg + 36
2 CoreFoundation 0x2dc61554 __CFRunLoopServiceMachPort + 152
3 CoreFoundation 0x2dc5fc74 __CFRunLoopRun + 788
4 CoreFoundation 0x2dbca46c CFRunLoopRunSpecific + 520
5 CoreFoundation 0x2dbca24e CFRunLoopRunInMode + 102
6 libAVFAudio.dylib 0x2cc395ae GenericRunLoopThread::Entry(void*) + 126
7 libAVFAudio.dylib 0x2cc2dafc CAPThread::Entry(CAPThread*) + 176
8 libsystem_pthread.dylib 0x38609c5a _pthread_body + 138
9 libsystem_pthread.dylib 0x38609bca _pthread_start + 98
10 libsystem_pthread.dylib 0x38607ccc thread_start + 4
Thread 5 name: JavaScriptCore::BlockFree
Thread 5:
0 libsystem_kernel.dylib 0x385a2f38 __psynch_cvwait + 24
1 libsystem_pthread.dylib 0x38609262 _pthread_cond_wait + 538
2 libsystem_pthread.dylib 0x3860a07c pthread_cond_timedwait + 40
3 JavaScriptCore 0x2ebee55e WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 102
4 JavaScriptCore 0x2ebee38c JSC::BlockAllocator::blockFreeingThreadMain() + 88
5 JavaScriptCore 0x2ebeba68 WTF::wtfThreadEntryPoint(void*) + 12
6 libsystem_pthread.dylib 0x38609c5a _pthread_body + 138
7 libsystem_pthread.dylib 0x38609bca _pthread_start + 98
8 libsystem_pthread.dylib 0x38607ccc thread_start + 4
Thread 6 name: JavaScriptCore::Marking
Thread 6:
0 libsystem_kernel.dylib 0x385a2f38 __psynch_cvwait + 24
1 libsystem_pthread.dylib 0x38609262 _pthread_cond_wait + 538
2 libsystem_pthread.dylib 0x3860a03c pthread_cond_wait + 36
3 JavaScriptCore 0x2ed8caea JSC::GCThread::waitForNextPhase() + 74
4 JavaScriptCore 0x2ed8cb44 JSC::GCThread::gcThreadMain() + 48
5 JavaScriptCore 0x2ebeba68 WTF::wtfThreadEntryPoint(void*) + 12
6 libsystem_pthread.dylib 0x38609c5a _pthread_body + 138
7 libsystem_pthread.dylib 0x38609bca _pthread_start + 98
8 libsystem_pthread.dylib 0x38607ccc thread_start + 4
Thread 7:
0 libsystem_kernel.dylib 0x385a2f38 __psynch_cvwait + 24
1 libsystem_pthread.dylib 0x38609262 _pthread_cond_wait + 538
2 libsystem_pthread.dylib 0x3860a03c pthread_cond_wait + 36
3 Foundation 0x2e6055ba -[NSCondition wait] + 190
4 SkiWithMe 0x000f3564 0x3f000 + 738660
5 Foundation 0x2e67ac32 __NSThread__main__ + 1058
6 libsystem_pthread.dylib 0x38609c5a _pthread_body + 138
7 libsystem_pthread.dylib 0x38609bca _pthread_start + 98
8 libsystem_pthread.dylib 0x38607ccc thread_start + 4
Thread 8:
0 libsystem_kernel.dylib 0x38590a84 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3859087c mach_msg + 36
2 CoreFoundation 0x2dc61554 __CFRunLoopServiceMachPort + 152
3 CoreFoundation 0x2dc5fc74 __CFRunLoopRun + 788
4 CoreFoundation 0x2dbca46c CFRunLoopRunSpecific + 520
5 CoreFoundation 0x2dbca24e CFRunLoopRunInMode + 102
6 Foundation 0x2e5b8692 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 250
7 Foundation 0x2e6094d4 -[NSRunLoop(NSRunLoop) run] + 76
8 SkiWithMe 0x0011b610 0x3f000 + 902672
9 Foundation 0x2e67ac32 __NSThread__main__ + 1058
10 libsystem_pthread.dylib 0x38609c5a _pthread_body + 138
11 libsystem_pthread.dylib 0x38609bca _pthread_start + 98
12 libsystem_pthread.dylib 0x38607ccc thread_start + 4
Thread 9 name: WebCore: CFNetwork Loader
Thread 9:
0 libsystem_kernel.dylib 0x38590a84 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3859087c mach_msg + 36
2 CoreFoundation 0x2dc61554 __CFRunLoopServiceMachPort + 152
3 CoreFoundation 0x2dc5fc74 __CFRunLoopRun + 788
4 CoreFoundation 0x2dbca46c CFRunLoopRunSpecific + 520
5 CoreFoundation 0x2dbca24e CFRunLoopRunInMode + 102
6 WebCore 0x35be00a2 WebCore::runLoaderThread(void*) + 250
7 JavaScriptCore 0x2ebeba68 WTF::wtfThreadEntryPoint(void*) + 12
8 libsystem_pthread.dylib 0x38609c5a _pthread_body + 138
9 libsystem_pthread.dylib 0x38609bca _pthread_start + 98
10 libsystem_pthread.dylib 0x38607ccc thread_start + 4
Thread 10 name: com.apple.CFSocket.private
Thread 10:
0 libsystem_kernel.dylib 0x385a3440 select$DARWIN_EXTSN + 20
1 CoreFoundation 0x2dc65456 __CFSocketManager + 482
2 libsystem_pthread.dylib 0x38609c5a _pthread_body + 138
3 libsystem_pthread.dylib 0x38609bca _pthread_start + 98
4 libsystem_pthread.dylib 0x38607ccc thread_start + 4
Thread 11 name: WebCore: LocalStorage
Thread 11:
0 libsystem_kernel.dylib 0x385a2f38 __psynch_cvwait + 24
1 libsystem_pthread.dylib 0x38609262 _pthread_cond_wait + 538
2 libsystem_pthread.dylib 0x3860a03c pthread_cond_wait + 36
3 JavaScriptCore 0x2ebee530 WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 56
4 WebCore 0x35ccb344 WTF::PassOwnPtr<WTF::Function<void ()> > WTF::MessageQueue<WTF::Function<void ()> >::waitForMessageFilteredWithTimeout<bool (WTF::Function<void ()>*)>(WTF::MessageQueueWaitResult&, bool (&)(WTF::Function<void ()>*), double) + 104
5 WebCore 0x35ccb2ca WebCore::StorageThread::threadEntryPoint() + 162
6 JavaScriptCore 0x2ebeba68 WTF::wtfThreadEntryPoint(void*) + 12
7 libsystem_pthread.dylib 0x38609c5a _pthread_body + 138
8 libsystem_pthread.dylib 0x38609bca _pthread_start + 98
9 libsystem_pthread.dylib 0x38607ccc thread_start + 4
Thread 12:
0 libsystem_kernel.dylib 0x385a3c7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x38607e06 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x38607cc0 start_wqthread + 4
Thread 13:
0 libsystem_kernel.dylib 0x385a3c7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x38607e06 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x38607cc0 start_wqthread + 4
Thread 14:
0 libsystem_kernel.dylib 0x385a3c7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x38607e06 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x38607cc0 start_wqthread + 4
Thread 3 crashed with ARM Thread State (32-bit):
r0: 0x800004f8 r1: 0x3e4003e0 r2: 0xbe4008d8 r3: 0x00000040
r4: 0x02b1c3c0 r5: 0x04602e74 r6: 0x04602e74 r7: 0x02d0308c
r8: 0x16dc6528 r9: 0x0f9000f8 r10: 0x00000000 r11: 0x16dc64d0
ip: 0x38940808 sp: 0x02d0307c lr: 0x35b08ca7 pc: 0x35b08dba
cpsr: 0x20000030

i think u have a issue when ur app back in foreground from the background ,so it's happens due to when u r trying to access some data or array on background to foreground.that var or array wont accessible or u defined dynamic value thats why it's cause crashed .

Related

Crash Log symbolication IOS 8.1.2 in xcode 6.1?

I tried to rectify the crash using the crash report under "Windows->Devices->View Device Logs", but the crash log is full of numbers. I tried Re-Symbolicate option, but there is no change. "Exceptional Codes" data is also missing in the report. I'm using single Mac System to run the project and view the crash reports.So there should not be any problem about symbolification Any other way to symbolicate ?
Identifier: com.company.app
Version: 2.1 (2.1)
Code Type: ARM (Native)
Parent Process: debugserver [227]
Date/Time: 2015-02-23 11:37:37.379 +0530
Launch Time: 2015-02-23 11:29:40.850 +0530
OS Version: iOS 8.1.2 (12B440)
Report Version: 105
Exception Type: EXC_RESOURCE
Exception Subtype: WAKEUPS
Exception Message: (Limit 150/sec) Observed 298/sec over 300 secs
Triggered by Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Attributed:
0 libsystem_kernel.dylib 0x39ec04f0 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x39ec02e4 mach_msg + 36
2 IOKit 0x2cbfcb72 0x2cbbb000 + 269170
3 IOKit 0x2cbbfe1e 0x2cbbb000 + 19998
4 IOKit 0x2cbbffc2 0x2cbbb000 + 20418
5 IOAccelerator 0x33491646 0x33490000 + 5702
6 libGPUSupportMercury.dylib 0x329813b2 0x3297f000 + 9138
7 IMGSGX554GLDriver 0x2a61240e 0x2a60f000 + 13326
8 libglInterpose.dylib 0x007cfdea 0x695000 + 1289706
9 AppName 0x00195c72 0x98000 + 1039474
10 AppName 0x00172356 0x98000 + 893782
11 libglInterpose.dylib 0x0085317e 0x695000 + 1827198
12 QuartzCore 0x2ebcf7fe 0x2eb75000 + 370686
13 QuartzCore 0x2ebcf666 0x2eb75000 + 370278
14 IOMobileFramebuffer 0x3349b828 0x33496000 + 22568
15 IOKit 0x2cbbf4de 0x2cbbb000 + 17630
16 CoreFoundation 0x2bc4f0a2 0x2bb93000 + 770210
17 CoreFoundation 0x2bc5f570 0x2bb93000 + 836976
18 CoreFoundation 0x2bc5f50a 0x2bb93000 + 836874
19 CoreFoundation 0x2bc5db0c 0x2bb93000 + 830220
20 CoreFoundation 0x2bbab3bc CFRunLoopRunSpecific + 472
21 CoreFoundation 0x2bbab1ce CFRunLoopRunInMode + 102
22 GraphicsServices 0x32f8f0a4 0x32f86000 + 37028
23 UIKit 0x2f1baf9c 0x2f14d000 + 450460
24 AppName 0x0015f0c2 0x98000 + 815298
25 libdyld.dylib 0x39e0daac 0x39e0c000 + 6828
Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x39ec02a0 kevent64 + 24
1 libdispatch.dylib 0x008ef674 0x8e1000 + 58996
2 libdispatch.dylib 0x008e4496 0x8e1000 + 13462
Thread 2 name: gputools.smt_poll.0x15588960
Thread 2:
0 libsystem_kernel.dylib 0x39ed419c __semwait_signal + 24
1 libsystem_c.dylib 0x39e33a6c nanosleep + 168
2 libsystem_c.dylib 0x39e339bc usleep + 48
3 GPUToolsCore 0x0092cff4 0x924000 + 36852
4 libsystem_pthread.dylib 0x39f50e90 _pthread_body + 136
5 libsystem_pthread.dylib 0x39f50e02 _pthread_start + 114
6 libsystem_pthread.dylib 0x39f4eb8c thread_start + 4
Thread 3 name: GAIThread
Thread 3:
0 libsystem_kernel.dylib 0x39ec04f0 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x39ec02e4 mach_msg + 36
2 CoreFoundation 0x2bc5f316 __CFRunLoopServiceMachPort + 142
3 CoreFoundation 0x2bc5d8bc __CFRunLoopRun + 1012
4 CoreFoundation 0x2bbab3bc CFRunLoopRunSpecific + 472
5 CoreFoundation 0x2bbab1ce CFRunLoopRunInMode + 102
6 Foundation 0x2c8e4bf8 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 260
7 Foundation 0x2c9330b8 -[NSRunLoop(NSRunLoop) run] + 76
8 AppName 0x00218354 0x98000 + 1573716
9 Foundation 0x2c9a9b56 __NSThread__main__ + 1114
10 libsystem_pthread.dylib 0x39f50e90 _pthread_body + 136
11 libsystem_pthread.dylib 0x39f50e02 _pthread_start + 114
12 libsystem_pthread.dylib 0x39f4eb8c thread_start + 4
Thread 4 name: AVAudioSession Notify Thread
Thread 4:
0 libsystem_kernel.dylib 0x39ec04f0 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x39ec02e4 mach_msg + 36
2 CoreFoundation 0x2bc5f316 __CFRunLoopServiceMachPort + 142
3 CoreFoundation 0x2bc5d8bc __CFRunLoopRun + 1012
4 CoreFoundation 0x2bbab3bc CFRunLoopRunSpecific + 472
5 CoreFoundation 0x2bbab1ce CFRunLoopRunInMode + 102
6 libAVFAudio.dylib 0x2a8b53ea GenericRunLoopThread::Entry(void*) + 130
7 libAVFAudio.dylib 0x2a8a7908 CAPThread::Entry(CAPThread*) + 192
8 libsystem_pthread.dylib 0x39f50e90 _pthread_body + 136
9 libsystem_pthread.dylib 0x39f50e02 _pthread_start + 114
10 libsystem_pthread.dylib 0x39f4eb8c thread_start + 4
Thread 5 name: com.apple.coremedia.player.async
Thread 5:
0 libsystem_kernel.dylib 0x39ec0540 semaphore_wait_trap + 8
1 libdispatch.dylib 0x008edaaa 0x8e1000 + 51882
2 MediaToolbox 0x2d667ff6 fpa_AsyncMovieControlThread + 1962
3 CoreMedia 0x2c402d10 figThreadMain + 184
4 libsystem_pthread.dylib 0x39f50e90 _pthread_body + 136
5 libsystem_pthread.dylib 0x39f50e02 _pthread_start + 114
6 libsystem_pthread.dylib 0x39f4eb8c thread_start + 4
Thread 6 name: com.apple.coremedia.player.remote
Thread 6:
0 libsystem_kernel.dylib 0x39ec04f0 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x39ec02e4 mach_msg + 36
2 MediaToolbox 0x2d66d0dc FigExpressNotificationThread + 84
3 CoreMedia 0x2c402d10 figThreadMain + 184
4 libsystem_pthread.dylib 0x39f50e90 _pthread_body + 136
5 libsystem_pthread.dylib 0x39f50e02 _pthread_start + 114
6 libsystem_pthread.dylib 0x39f4eb8c thread_start + 4
Thread 7:
0 libsystem_kernel.dylib 0x39ec04f0 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x39ec02e4 mach_msg + 36
2 CoreFoundation 0x2bc5f316 __CFRunLoopServiceMachPort + 142
3 CoreFoundation 0x2bc5d8bc __CFRunLoopRun + 1012
4 CoreFoundation 0x2bbab3bc CFRunLoopRunSpecific + 472
5 CoreFoundation 0x2bbf40e6 CFRunLoopRun + 94
6 CoreMotion 0x2c4aee9a 0x2c46f000 + 261786
7 libsystem_pthread.dylib 0x39f50e90 _pthread_body + 136
8 libsystem_pthread.dylib 0x39f50e02 _pthread_start + 114
9 libsystem_pthread.dylib 0x39f4eb8c thread_start + 4
Thread 8 name: com.apple.NSURLConnectionLoader
Thread 8:
0 libsystem_kernel.dylib 0x39ec04f0 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x39ec02e4 mach_msg + 36
2 CoreFoundation 0x2bc5f316 __CFRunLoopServiceMachPort + 142
3 CoreFoundation 0x2bc5d8bc __CFRunLoopRun + 1012
4 CoreFoundation 0x2bbab3bc CFRunLoopRunSpecific + 472
5 CoreFoundation 0x2bbab1ce CFRunLoopRunInMode + 102
6 CFNetwork 0x2b760952 +[NSURLConnection(Loader) _resourceLoadLoop:] + 482
7 Foundation 0x2c9a9b56 __NSThread__main__ + 1114
8 libsystem_pthread.dylib 0x39f50e90 _pthread_body + 136
9 libsystem_pthread.dylib 0x39f50e02 _pthread_start + 114
10 libsystem_pthread.dylib 0x39f4eb8c thread_start + 4
Thread 9 name: com.apple.CFSocket.private
Thread 9:
0 libsystem_kernel.dylib 0x39ed408c __select + 20
1 CoreFoundation 0x2bc63ae2 __CFSocketManager + 494
2 libsystem_pthread.dylib 0x39f50e90 _pthread_body + 136
3 libsystem_pthread.dylib 0x39f50e02 _pthread_start + 114
4 libsystem_pthread.dylib 0x39f4eb8c thread_start + 4
Thread 10:
0 libsystem_kernel.dylib 0x39ed49cc __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x39f4eea8 _pthread_wqthread + 788
2 libsystem_pthread.dylib 0x39f4eb80 start_wqthread + 4
Thread 0 crashed with ARM Thread State (32-bit):
r0: 0x00000000 r1: 0x00000003 r2: 0x000000dc r3: 0x000010bc
r4: 0x0000cf3b r5: 0x00000000 r6: 0x00000000 r7: 0x006745f8
r8: 0x00000000 r9: 0x00000000 r10: 0x00000003 r11: 0x00000003
ip: 0xffffffe1 sp: 0x006745bc lr: 0x39ec02e9 pc: 0x39ec04f0
cpsr: 0x00080010
Bad magic 0x2BBAB1D3
Microstackshots: 1 (from 2147483647-08-23 07:00:00 +0530 to 2147483647-08-23 07:00:00 +0530)
1 ??? [0x677868]
1 CoreFoundation 0x2bb93000 + 829633 [0x2bc5d8c1]
1 ??? [0x676bd0]
1 CoreFoundation 0x2bb93000 + 836379 [0x2bc5f31b]
1 ??? [0x676b90]
1 libsystem_kernel.dylib 0x39ebf000 + 4841 [0x39ec02e9]
1 ??? [0x676b54]
1 libsystem_kernel.dylib 0x39ebf000 + 5360 [0x39ec04f0]
*1 ??? [0x80012f3d]
Binary Images:
0x98000 - 0x2cffff AppName armv7 <f7d35a1c655d3510b2e82a4f84a1cec1> /var/mobile/Containers/Bundle/Application/0107CC0F-E58F-4410-99CF-342284A7BBC9/AppName.app/AppName
0x678000 - 0x67ffff libBacktraceRecording.dylib armv7s
You could integrate some api for crash report. use the fabric.io api.
Thanks

App shutdown with EXC_RESOURCE, CPU exception on iOS 7

Application runs in a background, communicates with BLE device. It was working fine in our testing, but now we are getting crashes.
Crash report shows below details, here on thread 15 crash occurs.
it show's related to CPU cycles.
Incident Identifier: 8F9083BF-497C-4441-BBB5-8554C875808A
CrashReporter Key: 0e515d51d2295f1e4cd5e5820df913a684243b28
Hardware Model: iPad2,6
Process: backboardd [1282]
Path: /usr/libexec/backboardd
Identifier: backboardd
Version: ???
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2014-06-10 14:19:52.920 -0700
OS Version: iOS 7.1.2 (11D257)
Report Version: 104
Exception Type: EXC_RESOURCE
Exception Subtype: CPU
Exception Message: (Limit 50%) Observed 85% over 180 secs
Triggered by Thread: 15
Thread 0:
0 libsystem_kernel.dylib 0x3b043a58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b043854 mach_msg + 44
2 CoreFoundation 0x2fd83846 __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2fd81fb2 __CFRunLoopRun + 850
4 CoreFoundation 0x2fceceba CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2fcecc9e CFRunLoopRunInMode + 102
6 backboardd 0x00046cb6 0x43000 + 15542
7 libdyld.dylib 0x3afa0ab4 start + 0
Thread 1:
0 libsystem_kernel.dylib 0x3b043808 kevent64 + 24
1 libdispatch.dylib 0x3af85078 _dispatch_mgr_invoke + 228
2 libdispatch.dylib 0x3af84dfe _dispatch_mgr_thread$VARIANT$mp + 34
Thread 2 name: com.apple.CoreAnimation.render-server
Thread 2:
0 libsystem_kernel.dylib 0x3b043a58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b043854 mach_msg + 44
2 QuartzCore 0x322ef78c CA::Render::Server::server_thread(void*) + 180
3 QuartzCore 0x323677ce thread_fun + 14
4 libsystem_pthread.dylib 0x3b0bf916 _pthread_body + 138
5 libsystem_pthread.dylib 0x3b0bf886 _pthread_start + 98
6 libsystem_pthread.dylib 0x3b0bdaa0 thread_start + 4
Thread 3 name: com.apple.CoreAnimation.IOMFB.external
Thread 3:
0 libsystem_kernel.dylib 0x3b043a58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b043854 mach_msg + 44
2 CoreFoundation 0x2fd83846 __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2fd81f6c __CFRunLoopRun + 780
4 CoreFoundation 0x2fceceba CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2fd309ae CFRunLoopRun + 94
6 QuartzCore 0x32332c12 CA::WindowServer::IOMFBServer::thread_body(void*) + 282
7 QuartzCore 0x323677ce thread_fun + 14
8 libsystem_pthread.dylib 0x3b0bf916 _pthread_body + 138
9 libsystem_pthread.dylib 0x3b0bf886 _pthread_start + 98
10 libsystem_pthread.dylib 0x3b0bdaa0 thread_start + 4
Thread 4:
0 libsystem_kernel.dylib 0x3b043a58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b043854 mach_msg + 44
2 CoreFoundation 0x2fd83846 __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2fd81f6c __CFRunLoopRun + 780
4 CoreFoundation 0x2fceceba CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2fd309ae CFRunLoopRun + 94
6 IOMobileFramebuffer 0x35048452 iomfb_runloop_thread + 250
7 libsystem_pthread.dylib 0x3b0bf916 _pthread_body + 138
8 libsystem_pthread.dylib 0x3b0bf886 _pthread_start + 98
9 libsystem_pthread.dylib 0x3b0bdaa0 thread_start + 4
Thread 5 name: com.apple.CoreAnimation.IOMFB.wireless
Thread 5:
0 libsystem_kernel.dylib 0x3b043a58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b043854 mach_msg + 44
2 CoreFoundation 0x2fd83846 __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2fd81f6c __CFRunLoopRun + 780
4 CoreFoundation 0x2fceceba CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2fd309ae CFRunLoopRun + 94
6 QuartzCore 0x32332c12 CA::WindowServer::IOMFBServer::thread_body(void*) + 282
7 QuartzCore 0x323677ce thread_fun + 14
8 libsystem_pthread.dylib 0x3b0bf916 _pthread_body + 138
9 libsystem_pthread.dylib 0x3b0bf886 _pthread_start + 98
10 libsystem_pthread.dylib 0x3b0bdaa0 thread_start + 4
Thread 6 name: com.apple.CoreAnimation.IOMFB.primary
Thread 6:
0 libsystem_kernel.dylib 0x3b043a58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b043854 mach_msg + 44
2 CoreFoundation 0x2fd83846 __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2fd81f6c __CFRunLoopRun + 780
4 CoreFoundation 0x2fceceba CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2fd309ae CFRunLoopRun + 94
6 QuartzCore 0x32332c12 CA::WindowServer::IOMFBServer::thread_body(void*) + 282
7 QuartzCore 0x323677ce thread_fun + 14
8 libsystem_pthread.dylib 0x3b0bf916 _pthread_body + 138
9 libsystem_pthread.dylib 0x3b0bf886 _pthread_start + 98
10 libsystem_pthread.dylib 0x3b0bdaa0 thread_start + 4
Thread 7 name: IOHIDService - RunLoopCompatibilityThread
Thread 7:
0 libsystem_kernel.dylib 0x3b043a58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b043854 mach_msg + 44
2 CoreFoundation 0x2fd83846 __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2fd81f6c __CFRunLoopRun + 780
4 CoreFoundation 0x2fceceba CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2fd309ae CFRunLoopRun + 94
6 IOKit 0x30abd520 __IOHIDServiceRunLoopCompatibilityThread + 156
7 libsystem_pthread.dylib 0x3b0bf916 _pthread_body + 138
8 libsystem_pthread.dylib 0x3b0bf886 _pthread_start + 98
9 libsystem_pthread.dylib 0x3b0bdaa0 thread_start + 4
Thread 8:
0 libsystem_kernel.dylib 0x3b043a58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b043854 mach_msg + 44
2 CoreFoundation 0x2fd83846 __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2fd81f6c __CFRunLoopRun + 780
4 CoreFoundation 0x2fceceba CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2fd309ae CFRunLoopRun + 94
6 CoreMotion 0x303aa3a8 0x30371000 + 234408
7 libsystem_pthread.dylib 0x3b0bf916 _pthread_body + 138
8 libsystem_pthread.dylib 0x3b0bf886 _pthread_start + 98
9 libsystem_pthread.dylib 0x3b0bdaa0 thread_start + 4
Thread 9:
0 libsystem_kernel.dylib 0x3b043a58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b043854 mach_msg + 44
2 CoreFoundation 0x2fd83846 __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2fd81f6c __CFRunLoopRun + 780
4 CoreFoundation 0x2fceceba CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2fd309ae CFRunLoopRun + 94
6 backboardd 0x0004ea50 0x43000 + 47696
7 backboardd 0x0004ea7c 0x43000 + 47740
8 libsystem_pthread.dylib 0x3b0bf916 _pthread_body + 138
9 libsystem_pthread.dylib 0x3b0bf886 _pthread_start + 98
10 libsystem_pthread.dylib 0x3b0bdaa0 thread_start + 4
Thread 10:
0 libsystem_kernel.dylib 0x3b043a58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b043854 mach_msg + 44
2 CoreFoundation 0x2fd83846 __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2fd81f6c __CFRunLoopRun + 780
4 CoreFoundation 0x2fceceba CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2fd309ae CFRunLoopRun + 94
6 backboardd 0x0004ea50 0x43000 + 47696
7 backboardd 0x0004ea7c 0x43000 + 47740
8 libsystem_pthread.dylib 0x3b0bf916 _pthread_body + 138
9 libsystem_pthread.dylib 0x3b0bf886 _pthread_start + 98
10 libsystem_pthread.dylib 0x3b0bdaa0 thread_start + 4
Thread 11:
0 libsystem_kernel.dylib 0x3b043ac0 semaphore_timedwait_trap + 8
1 libdispatch.dylib 0x3af83208 _dispatch_semaphore_wait_slow + 120
2 libdispatch.dylib 0x3af8299e _dispatch_worker_thread + 110
3 libsystem_pthread.dylib 0x3b0bf916 _pthread_body + 138
4 libsystem_pthread.dylib 0x3b0bf886 _pthread_start + 98
5 libsystem_pthread.dylib 0x3b0bdaa0 thread_start + 4
Thread 12:
0 libsystem_kernel.dylib 0x3b043ac0 semaphore_timedwait_trap + 8
1 libdispatch.dylib 0x3af83208 _dispatch_semaphore_wait_slow + 120
2 libdispatch.dylib 0x3af8299e _dispatch_worker_thread + 110
3 libsystem_pthread.dylib 0x3b0bf916 _pthread_body + 138
4 libsystem_pthread.dylib 0x3b0bf886 _pthread_start + 98
5 libsystem_pthread.dylib 0x3b0bdaa0 thread_start + 4
Thread 13:
0 libsystem_kernel.dylib 0x3b043ac0 semaphore_timedwait_trap + 8
1 libdispatch.dylib 0x3af83208 _dispatch_semaphore_wait_slow + 120
2 libdispatch.dylib 0x3af8299e _dispatch_worker_thread + 110
3 libsystem_pthread.dylib 0x3b0bf916 _pthread_body + 138
4 libsystem_pthread.dylib 0x3b0bf886 _pthread_start + 98
5 libsystem_pthread.dylib 0x3b0bdaa0 thread_start + 4
Thread 14:
0 libsystem_kernel.dylib 0x3b043aa8 semaphore_wait_trap + 8
1 libsystem_platform.dylib 0x3b0b8ba8 _os_semaphore_wait + 8
2 libdispatch.dylib 0x3af81616 _dispatch_barrier_sync_f_slow + 134
3 backboardd 0x00073d64 0x43000 + 200036
4 libxpc.dylib 0x3b0cd382 _xpc_connection_call_event_handler + 38
5 libxpc.dylib 0x3b0cb82a _xpc_connection_mach_event + 1550
6 libdispatch.dylib 0x3af85c4a _dispatch_mach_msg_invoke$VARIANT$mp + 114
7 libdispatch.dylib 0x3af81ec2 _dispatch_queue_drain$VARIANT$mp + 410
8 libdispatch.dylib 0x3af85eb2 _dispatch_mach_invoke$VARIANT$mp + 74
9 libdispatch.dylib 0x3af81ec2 _dispatch_queue_drain$VARIANT$mp + 410
10 libdispatch.dylib 0x3af81c92 _dispatch_queue_invoke$VARIANT$mp + 38
11 libdispatch.dylib 0x3af82a42 _dispatch_root_queue_drain + 74
12 libdispatch.dylib 0x3af82d24 _dispatch_worker_thread2 + 52
13 libsystem_pthread.dylib 0x3b0bdbd0 _pthread_wqthread + 296
14 libsystem_pthread.dylib 0x3b0bda94 start_wqthread + 4
Thread 15 Crashed:
0 libsystem_platform.dylib 0x3b0bc4d4 DYLD-STUB$$MKGetTimeBaseInfo + 0
1 libsystem_malloc.dylib 0x3b07c952 malloc_zone_malloc + 70
2 CoreFoundation 0x2fce768a _CFRuntimeCreateInstance + 218
3 CoreFoundation 0x2fcfb2e2 CFStringCreateMutable + 54
4 CoreFoundation 0x2fd0f01e CFStringCreateMutableCopy + 106
5 Foundation 0x306ff372 -[NSPlaceholderMutableString initWithString:] + 186
6 Foundation 0x306ff3ba +[NSString stringWithString:] + 38
7 backboardd 0x00044e8e 0x43000 + 7822
8 CoreFoundation 0x2fd31528 -[NSSet descriptionWithLocale:indent:] + 344
9 Foundation 0x306d61c0 _NSDescriptionWithLocaleFunc + 64
10 CoreFoundation 0x2fd8eed8 __CFStringAppendFormatCore + 5656
11 CoreFoundation 0x2fcfe60c _CFStringCreateWithFormatAndArgumentsAux + 72
12 Foundation 0x306d615e -[NSPlaceholderString initWithFormat:locale:arguments:] + 126
13 Foundation 0x306d6064 +[NSString stringWithFormat:] + 56
14 backboardd 0x0006285e 0x43000 + 129118
15 backboardd 0x00069e6a 0x43000 + 159338
16 backboardd 0x00069dca 0x43000 + 159178
17 libxpc.dylib 0x3b0cd382 _xpc_connection_call_event_handler + 38
18 libxpc.dylib 0x3b0cb5e4 _xpc_connection_mach_event + 968
19 libdispatch.dylib 0x3af86a5e _dispatch_mach_cancel_invoke + 34
20 libdispatch.dylib 0x3af85fd4 _dispatch_mach_invoke$VARIANT$mp + 364
21 libdispatch.dylib 0x3af81ec2 _dispatch_queue_drain$VARIANT$mp + 410
22 libdispatch.dylib 0x3af81c92 _dispatch_queue_invoke$VARIANT$mp + 38
23 libdispatch.dylib 0x3af81ec2 _dispatch_queue_drain$VARIANT$mp + 410
24 libdispatch.dylib 0x3af81c92 _dispatch_queue_invoke$VARIANT$mp + 38
25 libdispatch.dylib 0x3af82a42 _dispatch_root_queue_drain + 74
26 libdispatch.dylib 0x3af82d24 _dispatch_worker_thread2 + 52
27 libsystem_pthread.dylib 0x3b0bdbd0 _pthread_wqthread + 296
28 libsystem_pthread.dylib 0x3b0bda94 start_wqthread + 4
Thread 16:
0 libsystem_kernel.dylib 0x3b056c70 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3b0bdbda _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3b0bda94 start_wqthread + 4
Thread 17:
0 libsystem_kernel.dylib 0x3b056c70 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3b0bdbda _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3b0bda94 start_wqthread + 4
Thread 15 crashed with ARM Thread State (32-bit):
r0: 0x000b6500 r1: 0x3b0bc4d4 r2: 0x00000000 r3: 0x2fd63899
r4: 0x00000000 r5: 0x000b6500 r6: 0x00000020 r7: 0x03a87894
r8: 0x000b3000 r9: 0x172fb0f0 r10: 0x000b6500 r11: 0x00000007
ip: 0x3d04c118 sp: 0x03a87808 lr: 0x3b07c9c5 pc: 0x3b0bc4d4
cpsr: 0x80000010
Bad magic 0x2FCECEBF
Microstackshots: 1 (from 2147483647-10-02 17:00:00 -0800 to 2147483647-10-02 17:00:00 -0800)
1 ??? [0x27dbd028]
1 CoreFoundation 0x2fce5000 + 649291 [0x2fd8384b]
1 ??? [0x27dbcfec]
1 libsystem_kernel.dylib 0x3b043000 + 2137 [0x3b043859]
1 ??? [0x27dbcfac]
1 libsystem_kernel.dylib 0x3b043000 + 2648 [0x3b043a58]
*1 ??? [0x800af745]

iOS 7 crash due to EXC_BAD_ACCESS (SIGSEGV). Can anybody help me to understand the crash report?

I am getting weird crash in my application running in iOS 7 but in iOS 6 app is working fine. I am performing some operations. After 5-6 operations are completed I am experiencing this crash. This number can go till 20 also or 1 also. Attaching crash log with this.
Incident Identifier: 6702CA20-9832-4305-B723-588C6B33C199
CrashReporter Key: 0370a1a51d424d34102c66389c6b00b12585aa57
Hardware Model: iPad2,5
Process: mobile [2958]
Path:
Identifier:
Version: 2.0.0.401
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2014-06-02 13:35:50.243 +0530
OS Version: iOS 7.0.6 (11B651)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0xef264ee9
Triggered by Thread: 0
Thread 0 Crashed:
0 libobjc.A.dylib 0x3af9eb22 objc_msgSend + 2
1 UIFoundation 0x38384d5e -[NSParagraphStyle _deallocExtraData] + 54
2 UIFoundation 0x383858ca -[NSParagraphStyle dealloc] + 22
3 CoreFoundation 0x3073d650 CFRelease + 552
4 CoreFoundation 0x30749a1e -[__NSDictionaryM dealloc] + 130
5 libobjc.A.dylib 0x3afaeb06 objc_object::sidetable_release(bool) + 170
6 UIKit 0x3304be68 -[UILabel dealloc] + 116
7 UIKit 0x32f80402 -[UIView dealloc] + 362
8 UIKit 0x3305223a -[UIScrollView dealloc] + 830
9 UIKit 0x33051cb4 -[UIScrollView removeFromSuperview] + 60
10 UIKit 0x32f80402 -[UIView dealloc] + 362
11 UIKit 0x33199088 -[_UIModalItemContentView dealloc] + 116
12 UIKit 0x3323d432 -[_UIModalItemAlertContentView dealloc] + 70
13 libobjc.A.dylib 0x3afa0002 (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 354
14 CoreFoundation 0x3074097c _CFAutoreleasePoolPop + 12
15 CoreFoundation 0x307d80dc __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 12
16 CoreFoundation 0x307d7cf2 __CFRunLoopDoTimer + 778
17 CoreFoundation 0x307d608e __CFRunLoopRun + 1206
18 CoreFoundation 0x30740c22 CFRunLoopRunSpecific + 518
19 CoreFoundation 0x30740a06 CFRunLoopRunInMode + 102
20 GraphicsServices 0x3543427e GSEventRunModal + 134
21 UIKit 0x32fe4044 UIApplicationMain + 1132
22 mobile 0x0005d2c2 main (main.m:15)
23 libdyld.dylib 0x3b4abab4 start + 0
Thread 1:
0 libsystem_kernel.dylib 0x3b54f83c kevent64 + 24
1 libdispatch.dylib 0x3b490210 _dispatch_mgr_invoke + 228
2 libdispatch.dylib 0x3b48ff96 _dispatch_mgr_thread$VARIANT$mp + 34
Thread 2 name: WebThread
Thread 2:
0 libsystem_kernel.dylib 0x3b54fa8c mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b54f888 mach_msg + 44
2 CoreFoundation 0x307d77be __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x307d5ee4 __CFRunLoopRun + 780
4 CoreFoundation 0x30740c22 CFRunLoopRunSpecific + 518
5 CoreFoundation 0x30740a06 CFRunLoopRunInMode + 102
6 WebCore 0x3894e266 RunWebThread(void*) + 414
7 libsystem_pthread.dylib 0x3b5cac1a _pthread_body + 138
8 libsystem_pthread.dylib 0x3b5cab8a _pthread_start + 98
9 libsystem_pthread.dylib 0x3b5c8c8c thread_start + 4
Thread 3:
0 libsystem_kernel.dylib 0x3b54fa8c mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b54f888 mach_msg + 44
2 CoreFoundation 0x307d77be __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x307d5ee4 __CFRunLoopRun + 780
4 CoreFoundation 0x30740c22 CFRunLoopRunSpecific + 518
5 CoreFoundation 0x30740a06 CFRunLoopRunInMode + 102
6 libAVFAudio.dylib 0x2f7c3584 GenericRunLoopThread::Entry(void*) + 124
7 libAVFAudio.dylib 0x2f7b799c CAPThread::Entry(CAPThread*) + 176
8 libsystem_pthread.dylib 0x3b5cac1a _pthread_body + 138
9 libsystem_pthread.dylib 0x3b5cab8a _pthread_start + 98
10 libsystem_pthread.dylib 0x3b5c8c8c thread_start + 4
Thread 4 name: com.apple.CFSocket.private
Thread 4:
0 libsystem_kernel.dylib 0x3b562440 __select + 20
1 CoreFoundation 0x307db680 __CFSocketManager + 480
2 libsystem_pthread.dylib 0x3b5cac1a _pthread_body + 138
3 libsystem_pthread.dylib 0x3b5cab8a _pthread_start + 98
4 libsystem_pthread.dylib 0x3b5c8c8c thread_start + 4
Thread 5 name: GCDAsyncSocket-CFStream
Thread 5:
0 libsystem_kernel.dylib 0x3b54fa8c mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b54f888 mach_msg + 44
2 CoreFoundation 0x307d77be __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x307d5ee4 __CFRunLoopRun + 780
4 CoreFoundation 0x30740c22 CFRunLoopRunSpecific + 518
5 CoreFoundation 0x30740a06 CFRunLoopRunInMode + 102
6 Foundation 0x3112e3d6 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 250
7 Foundation 0x3117f30c -[NSRunLoop(NSRunLoop) run] + 76
8 mobile 0x000f6228 +[GCDAsyncSocket cfstreamThread] (GCDAsyncSocket.m:6741)
9 Foundation 0x311f0c82 __NSThread__main__ + 1058
10 libsystem_pthread.dylib 0x3b5cac1a _pthread_body + 138
11 libsystem_pthread.dylib 0x3b5cab8a _pthread_start + 98
12 libsystem_pthread.dylib 0x3b5c8c8c thread_start + 4
Thread 6 name: com.apple.NSURLConnectionLoader
Thread 6:
0 libsystem_kernel.dylib 0x3b54fa8c mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b54f888 mach_msg + 44
2 CoreFoundation 0x307d77be __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x307d5ee4 __CFRunLoopRun + 780
4 CoreFoundation 0x30740c22 CFRunLoopRunSpecific + 518
5 CoreFoundation 0x30740a06 CFRunLoopRunInMode + 102
6 Foundation 0x3117b2f2 +[NSURLConnection(Loader) _resourceLoadLoop:] + 314
7 Foundation 0x311f0c82 __NSThread__main__ + 1058
8 libsystem_pthread.dylib 0x3b5cac1a _pthread_body + 138
9 libsystem_pthread.dylib 0x3b5cab8a _pthread_start + 98
10 libsystem_pthread.dylib 0x3b5c8c8c thread_start + 4
Thread 7:
0 libsystem_kernel.dylib 0x3b54fa8c mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3b54f888 mach_msg + 44
2 CoreFoundation 0x307d77be __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x307d5ee4 __CFRunLoopRun + 780
4 CoreFoundation 0x30740c22 CFRunLoopRunSpecific + 518
5 CoreFoundation 0x30784736 CFRunLoopRun + 94
6 CoreMotion 0x30df7230 ___lldb_unnamed_function1404$$CoreMotion + 724
7 libsystem_pthread.dylib 0x3b5cac1a _pthread_body + 138
8 libsystem_pthread.dylib 0x3b5cab8a _pthread_start + 98
9 libsystem_pthread.dylib 0x3b5c8c8c thread_start + 4
Thread 8:
0 libsystem_kernel.dylib 0x3b562c7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3b5c8dc6 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3b5c8c80 start_wqthread + 4
Thread 9:
0 libsystem_kernel.dylib 0x3b562c7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3b5c8dc6 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3b5c8c80 start_wqthread + 4
Thread 10:
0 libsystem_kernel.dylib 0x3b562c7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3b5c8dc6 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3b5c8c80 start_wqthread + 4
Thread 11:
0 libsystem_kernel.dylib 0x3b562440 __select + 20
1 ExternalAccessory 0x31119352 -[EAInputStream _readInputFromAccThread] + 342
2 Foundation 0x311f0c82 __NSThread__main__ + 1058
3 libsystem_pthread.dylib 0x3b5cac1a _pthread_body + 138
4 libsystem_pthread.dylib 0x3b5cab8a _pthread_start + 98
5 libsystem_pthread.dylib 0x3b5c8c8c thread_start + 4
Thread 12:
0 libsystem_kernel.dylib 0x3b562c7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3b5c8dc6 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3b5c8c80 start_wqthread + 4
Thread 0 crashed with ARM Thread State (32-bit):
r0: 0xef264ee9 r1: 0x33566b29 r2: 0x3cf673f0 r3: 0x00000001
r4: 0x160815a0 r5: 0x33566b29 r6: 0x0000002c r7: 0x27dc88ac
r8: 0x160815a4 r9: 0x158af438 r10: 0x14e8846c r11: 0x14e88430
ip: 0x3cf59864 sp: 0x27dc88a0 lr: 0x38384d63 pc: 0x3af9eb22
cpsr: 0x20000030
Your app crashes while a UILabel inside a UIScrollView inside an alert is deallocated. I'd suspect that either your app overwrites memory somewhere and this is just a symptom, or you are using some alert in a non-standard way, possibly changing a paragraph style somewhere in the alert in a way that's wrong.
First step would be to turn all reasonable warnings on in the compiler, use the static analyser to find problems, and fix all of them.

iOS uiwebview crash in WebThread

I'm looking for some advice or help diagnosing this crash that I am seeing. For the moment, I think it is probably a webkit bug, but anything is possible, so please provide any insight you may have:
Incident Identifier: AEB8EE37-E5D4-4975-97F4-2B2038AC225A
CrashReporter Key: 92349a05395ea832c40c49c9e48997c1d65a2371
Hardware Model: iPad3,3
Process: Touch [242]
Path: /var/mobile/Applications/4D2CAEEE-D0F8-4BB4-989A-F8623C877C78/Touch.app/Touch
Identifier: StayinFrontTouch
Version: 3.2.40 (3.2.40)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2014-04-30 15:26:46.137 +1200
OS Version: iOS 7.1.1 (11D201)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x00000258
Triggered by Thread: 2
Thread 0:
0 libsystem_kernel.dylib 0x3a2ffa58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3a2ff854 mach_msg + 44
2 CoreFoundation 0x2f06e896 __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2f06d002 __CFRunLoopRun + 850
4 CoreFoundation 0x2efd7f0a CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2efd7cee CFRunLoopRunInMode + 102
6 GraphicsServices 0x33f0a65e GSEventRunModal + 134
7 UIKit 0x31923168 UIApplicationMain + 1132
8 Touch 0x000c064a 0xbd000 + 13898
9 Touch 0x000bf854 0xbd000 + 10324
Thread 1:
0 libsystem_kernel.dylib 0x3a2ff808 kevent64 + 24
1 libdispatch.dylib 0x3a241078 _dispatch_mgr_invoke + 228
2 libdispatch.dylib 0x3a240dfe _dispatch_mgr_thread$VARIANT$mp + 34
Thread 2 name: WebThread
Thread 2 Crashed:
0 WebCore 0x37584302 WebCore::SubresourceLoader::didReceiveResponse(WebCore::ResourceResponse const&) + 26
1 WebCore 0x377f751c WebCore::DocumentLoader::substituteResourceDeliveryTimerFired(WebCore::Timer*) + 212
2 WebCore 0x374ad3f4 WebCore::ThreadTimers::sharedTimerFiredInternal() + 132
3 WebCore 0x374ad346 WebCore::timerFired(__CFRunLoopTimer*, void*) + 22
4 CoreFoundation 0x2f06f1b4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 12
5 CoreFoundation 0x2f06edca __CFRunLoopDoTimer + 778
6 CoreFoundation 0x2f06d166 __CFRunLoopRun + 1206
7 CoreFoundation 0x2efd7f0a CFRunLoopRunSpecific + 518
8 CoreFoundation 0x2efd7cee CFRunLoopRunInMode + 102
9 WebCore 0x3753a116 RunWebThread(void*) + 414
10 libsystem_pthread.dylib 0x3a37b916 _pthread_body + 138
11 libsystem_pthread.dylib 0x3a37b886 _pthread_start + 98
12 libsystem_pthread.dylib 0x3a379aa0 thread_start + 4
Thread 3 name: com.apple.NSURLConnectionLoader
Thread 3:
0 libsystem_kernel.dylib 0x3a2ffa58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3a2ff854 mach_msg + 44
2 CoreFoundation 0x2f06e896 __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2f06cfbc __CFRunLoopRun + 780
4 CoreFoundation 0x2efd7f0a CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2efd7cee CFRunLoopRunInMode + 102
6 Foundation 0x2fa17082 +[NSURLConnection(Loader) _resourceLoadLoop:] + 314
7 Foundation 0x2fa8ca5a __NSThread__main__ + 1058
8 libsystem_pthread.dylib 0x3a37b916 _pthread_body + 138
9 libsystem_pthread.dylib 0x3a37b886 _pthread_start + 98
10 libsystem_pthread.dylib 0x3a379aa0 thread_start + 4
Thread 4:
0 libsystem_kernel.dylib 0x3a2ffa58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3a2ff854 mach_msg + 44
2 CoreFoundation 0x2f06e896 __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2f06cfbc __CFRunLoopRun + 780
4 CoreFoundation 0x2efd7f0a CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2efd7cee CFRunLoopRunInMode + 102
6 libAVFAudio.dylib 0x2e04f44c GenericRunLoopThread::Entry(void*) + 124
7 libAVFAudio.dylib 0x2e0437bc CAPThread::Entry(CAPThread*) + 176
8 libsystem_pthread.dylib 0x3a37b916 _pthread_body + 138
9 libsystem_pthread.dylib 0x3a37b886 _pthread_start + 98
10 libsystem_pthread.dylib 0x3a379aa0 thread_start + 4
Thread 5 name: JavaScriptCore::BlockFree
Thread 5:
0 libsystem_kernel.dylib 0x3a311f2c __psynch_cvwait + 24
1 libsystem_pthread.dylib 0x3a37af22 _pthread_cond_wait + 518
2 libsystem_pthread.dylib 0x3a37bd60 pthread_cond_wait + 36
3 JavaScriptCore 0x30004ee4 JSC::BlockAllocator::blockFreeingThreadMain() + 204
4 JavaScriptCore 0x30002538 WTF::wtfThreadEntryPoint(void*) + 12
5 libsystem_pthread.dylib 0x3a37b916 _pthread_body + 138
6 libsystem_pthread.dylib 0x3a37b886 _pthread_start + 98
7 libsystem_pthread.dylib 0x3a379aa0 thread_start + 4
Thread 6 name: JavaScriptCore::Marking
Thread 6:
0 libsystem_kernel.dylib 0x3a311f2c __psynch_cvwait + 24
1 libsystem_pthread.dylib 0x3a37af22 _pthread_cond_wait + 518
2 libsystem_pthread.dylib 0x3a37bd60 pthread_cond_wait + 36
3 JavaScriptCore 0x301a0406 JSC::GCThread::waitForNextPhase() + 74
4 JavaScriptCore 0x301a0460 JSC::GCThread::gcThreadMain() + 48
5 JavaScriptCore 0x30002538 WTF::wtfThreadEntryPoint(void*) + 12
6 libsystem_pthread.dylib 0x3a37b916 _pthread_body + 138
7 libsystem_pthread.dylib 0x3a37b886 _pthread_start + 98
8 libsystem_pthread.dylib 0x3a379aa0 thread_start + 4
Thread 7 name: WebCore: CFNetwork Loader
Thread 7:
0 libsystem_kernel.dylib 0x3a2ffa58 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3a2ff854 mach_msg + 44
2 CoreFoundation 0x2f06e896 __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2f06cfbc __CFRunLoopRun + 780
4 CoreFoundation 0x2efd7f0a CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2efd7cee CFRunLoopRunInMode + 102
6 WebCore 0x37582b12 WebCore::runLoaderThread(void*) + 250
7 JavaScriptCore 0x30002538 WTF::wtfThreadEntryPoint(void*) + 12
8 libsystem_pthread.dylib 0x3a37b916 _pthread_body + 138
9 libsystem_pthread.dylib 0x3a37b886 _pthread_start + 98
10 libsystem_pthread.dylib 0x3a379aa0 thread_start + 4
Thread 8 name: com.apple.CFSocket.private
Thread 8:
0 libsystem_kernel.dylib 0x3a312434 __select + 20
1 CoreFoundation 0x2f072758 __CFSocketManager + 480
2 libsystem_pthread.dylib 0x3a37b916 _pthread_body + 138
3 libsystem_pthread.dylib 0x3a37b886 _pthread_start + 98
4 libsystem_pthread.dylib 0x3a379aa0 thread_start + 4
Thread 9 name: WebCore: LocalStorage
Thread 9:
0 libsystem_kernel.dylib 0x3a311f2c __psynch_cvwait + 24
1 libsystem_pthread.dylib 0x3a37af22 _pthread_cond_wait + 518
2 libsystem_pthread.dylib 0x3a37bd60 pthread_cond_wait + 36
3 JavaScriptCore 0x30005012 WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 58
4 WebCore 0x3766cf2c WTF::PassOwnPtr > WTF::MessageQueue >::waitForMessageFilteredWithTimeout*)>(WTF::MessageQueueWaitResult&, bool (&)(WTF::Function*), double) + 104
5 WebCore 0x3766ceb2 WebCore::StorageThread::threadEntryPoint() + 162
6 JavaScriptCore 0x30002538 WTF::wtfThreadEntryPoint(void*) + 12
7 libsystem_pthread.dylib 0x3a37b916 _pthread_body + 138
8 libsystem_pthread.dylib 0x3a37b886 _pthread_start + 98
9 libsystem_pthread.dylib 0x3a379aa0 thread_start + 4
Thread 10:
0 libsystem_kernel.dylib 0x3a312c70 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3a379bda _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3a379a94 start_wqthread + 4
Thread 11:
0 libsystem_kernel.dylib 0x3a312c70 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3a379bda _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3a379a94 start_wqthread + 4
Thread 12:
0 libsystem_kernel.dylib 0x3a312c70 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3a379bda _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3a379a94 start_wqthread + 4
Thread 13:
0 libsystem_kernel.dylib 0x3a312c70 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3a379bda _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3a379a94 start_wqthread + 4
Thread 14:
0 libsystem_kernel.dylib 0x3a312c70 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3a379bda _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3a379a94 start_wqthread + 4
Thread 15:
0 libsystem_kernel.dylib 0x3a312c70 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3a379bda _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3a379a94 start_wqthread + 4
Thread 2 crashed with ARM Thread State (32-bit):
r0: 0x00000000 r1: 0x04ee0238 r2: 0x375842e9 r3: 0x019cb6b8
r4: 0x0a916c00 r5: 0x04ee0238 r6: 0x0a916c00 r7: 0x01bbf028
r8: 0x0549ea00 r9: 0x00000002 r10: 0x0549e9c8 r11: 0x03bc3000
ip: 0x3a6c7838 sp: 0x01bbf014 lr: 0x377f751f pc: 0x37584302
cpsr: 0x20000030
Binary Images:
...
I did some further investigation into the stack trace and found the code for Subresourceloader here (https://webkit.googlesource.com/WebKit/+/master/Source/WebCore/loader/SubresourceLoader.cpp).
My guess is that m_resource is NULL at this point marked with (****) causing the crash:
void SubresourceLoader::didReceiveResponse(const ResourceResponse& response)
{
ASSERT(!response.isNull());
ASSERT(m_state == Initialized);
// Reference the object in this method since the additional processing can do
// anything including removing the last reference to this object; one example of this is 3266216.
Ref<SubresourceLoader> protect(*this);
if (m_resource->resourceToRevalidate()) { ****
if (response.httpStatusCode() == 304) {
// 304 Not modified / Use local copy
// Existing resource is ok, just use it updating the expiration time.
m_resource->setResponse(response);
memoryCache()->revalidationSucceeded(m_resource, response);
if (!reachedTerminalState())
ResourceLoader::didReceiveResponse(response);
return;
}
// Did not get 304 response, continue as a regular resource load.
memoryCache()->revalidationFailed(m_resource);
}
...
If it worked after a reinstall then you could try doing the URL request without caching, since I would assume that will give the same outcome:
NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData timeoutInterval:30];
[webView loadRequest:request];
I'm guessing something is going wrong with the caching of a resource.

What could cause this crash?

I occasionally get a crash report which looks like to following:
Incident Identifier: 9E8A29CD-C473-41BE-9018-2DFEC530612B
CrashReporter Key: bee45cc2c49f3c1a0c3793b1a519a04012b8dffe
Hardware Model: iPad3,1
Process: dominicanorder [17420]
Path: /var/mobile/Applications/2154A91A-04D2-4F93-A116-DA276DEB6E90/dominicanorder.app/dominicanorder
Identifier: org.idoms.dominicanorder
Version: 232 (1.2.4)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2014-01-13 09:03:58.173 +0000
OS Version: iOS 7.0.4 (11B554a)
Report Version: 104
Exception Type: EXC_CRASH (SIGSEGV)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Triggered by Thread: 1
Thread 0:
0 libobjc.A.dylib 0x382ec7f0 objc_release + 16
1 UIKit 0x30517a24 -[UIWebTouchEventsGestureRecognizer dealloc] + 44
2 libobjc.A.dylib 0x382fab06 objc_object::sidetable_release(bool) + 170
3 CoreFoundation 0x2dab1650 CFRelease + 552
4 CoreFoundation 0x2dab91dc -[__NSArrayI dealloc] + 60
5 libobjc.A.dylib 0x382fab06 objc_object::sidetable_release(bool) + 170
6 libobjc.A.dylib 0x382ec002 (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 354
7 CoreFoundation 0x2dab497c _CFAutoreleasePoolPop + 12
8 UIKit 0x302ec248 _wrapRunLoopWithAutoreleasePoolHandler + 32
9 CoreFoundation 0x2db4c1ca __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 18
10 CoreFoundation 0x2db49b6c __CFRunLoopDoObservers + 280
11 CoreFoundation 0x2db49eae __CFRunLoopRun + 726
12 CoreFoundation 0x2dab4c22 CFRunLoopRunSpecific + 518
13 CoreFoundation 0x2dab4a06 CFRunLoopRunInMode + 102
14 GraphicsServices 0x327a827e GSEventRunModal + 134
15 UIKit 0x30358044 UIApplicationMain + 1132
16 dominicanorder 0x000d09ce 0xcc000 + 18894
17 dominicanorder 0x000d0984 0xcc000 + 18820
Thread 1 Crashed:
0 libsystem_kernel.dylib 0x3889b83c kevent64 + 24
1 libdispatch.dylib 0x387dc210 _dispatch_mgr_invoke + 228
2 libdispatch.dylib 0x387dbf96 _dispatch_mgr_thread$VARIANT$mp + 34
Thread 2:
0 libsystem_kernel.dylib 0x388aec7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x38914dc6 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x38914c80 start_wqthread + 4
Thread 3:
0 libsystem_kernel.dylib 0x388aec7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x38914dc6 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x38914c80 start_wqthread + 4
Thread 4:
0 libsystem_kernel.dylib 0x3889ba8c mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3889b888 mach_msg + 44
2 CoreFoundation 0x2db4b7be __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2db49ee4 __CFRunLoopRun + 780
4 CoreFoundation 0x2dab4c22 CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2dab4a06 CFRunLoopRunInMode + 102
6 libAVFAudio.dylib 0x2cb37584 GenericRunLoopThread::Entry(void*) + 124
7 libAVFAudio.dylib 0x2cb2b99c CAPThread::Entry(CAPThread*) + 176
8 libsystem_pthread.dylib 0x38916c1a _pthread_body + 138
9 libsystem_pthread.dylib 0x38916b8a _pthread_start + 98
10 libsystem_pthread.dylib 0x38914c8c thread_start + 4
Thread 5 name: com.apple.coremedia.player.async
Thread 5:
0 libsystem_kernel.dylib 0x3889badc semaphore_wait_trap + 8
1 libdispatch.dylib 0x387da428 _dispatch_semaphore_wait_slow + 172
2 MediaToolbox 0x2efa083c fpa_AsyncMovieControlThread + 1752
3 CoreMedia 0x2e0df234 figThreadMain + 192
4 libsystem_pthread.dylib 0x38916c1a _pthread_body + 138
5 libsystem_pthread.dylib 0x38916b8a _pthread_start + 98
6 libsystem_pthread.dylib 0x38914c8c thread_start + 4
Thread 6:
0 libsystem_kernel.dylib 0x388aec7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x38914dc6 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x38914c80 start_wqthread + 4
Thread 7:
0 libsystem_kernel.dylib 0x388aec7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x38914dc6 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x38914c80 start_wqthread + 4
Thread 8:
0 libsystem_kernel.dylib 0x388aec7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x38914dc6 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x38914c80 start_wqthread + 4
Thread 9:
0 libsystem_kernel.dylib 0x388aec7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x38914dc6 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x38914c80 start_wqthread + 4
Thread 10 name: com.apple.NSURLConnectionLoader
Thread 10:
0 libsystem_kernel.dylib 0x3889ba8c mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3889b888 mach_msg + 44
2 CoreFoundation 0x2db4b7be __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2db49ee4 __CFRunLoopRun + 780
4 CoreFoundation 0x2dab4c22 CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2dab4a06 CFRunLoopRunInMode + 102
6 Foundation 0x2e4ef2f2 +[NSURLConnection(Loader) _resourceLoadLoop:] + 314
7 Foundation 0x2e564c82 __NSThread__main__ + 1058
8 libsystem_pthread.dylib 0x38916c1a _pthread_body + 138
9 libsystem_pthread.dylib 0x38916b8a _pthread_start + 98
10 libsystem_pthread.dylib 0x38914c8c thread_start + 4
Thread 11 name: com.apple.CFSocket.private
Thread 11:
0 libsystem_kernel.dylib 0x388ae440 select$DARWIN_EXTSN + 20
1 CoreFoundation 0x2db4f680 __CFSocketManager + 480
2 libsystem_pthread.dylib 0x38916c1a _pthread_body + 138
3 libsystem_pthread.dylib 0x38916b8a _pthread_start + 98
4 libsystem_pthread.dylib 0x38914c8c thread_start + 4
Thread 12 name: WebThread
Thread 12:
0 libsystem_kernel.dylib 0x388adf38 __psynch_cvwait + 24
1 libsystem_pthread.dylib 0x38916224 _pthread_cond_wait + 536
2 libsystem_pthread.dylib 0x38917040 pthread_cond_timedwait + 40
3 WebCore 0x35cc0be2 SendDelegateMessage(NSInvocation*) + 690
4 WebCore 0x35c9895e WebRunLoopUnlockInternal(AutoreleasePoolOperation) + 162
5 CoreFoundation 0x2db4c1ca __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 18
6 CoreFoundation 0x2db49b6c __CFRunLoopDoObservers + 280
7 CoreFoundation 0x2dab4c44 CFRunLoopRunSpecific + 552
8 CoreFoundation 0x2dab4a06 CFRunLoopRunInMode + 102
9 WebCore 0x35c97266 RunWebThread(void*) + 414
10 libsystem_pthread.dylib 0x38916c1a _pthread_body + 138
11 libsystem_pthread.dylib 0x38916b8a _pthread_start + 98
12 libsystem_pthread.dylib 0x38914c8c thread_start + 4
Thread 13 name: JavaScriptCore::BlockFree
Thread 13:
0 libsystem_kernel.dylib 0x388adf38 __psynch_cvwait + 24
1 libsystem_pthread.dylib 0x38916224 _pthread_cond_wait + 536
2 libsystem_pthread.dylib 0x38917040 pthread_cond_timedwait + 40
3 JavaScriptCore 0x2ead9eb0 WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 104
4 JavaScriptCore 0x2ead9cdc JSC::BlockAllocator::blockFreeingThreadMain() + 88
5 JavaScriptCore 0x2ead73a0 WTF::wtfThreadEntryPoint(void*) + 12
6 libsystem_pthread.dylib 0x38916c1a _pthread_body + 138
7 libsystem_pthread.dylib 0x38916b8a _pthread_start + 98
8 libsystem_pthread.dylib 0x38914c8c thread_start + 4
Thread 14 name: JavaScriptCore::Marking
Thread 14:
0 libsystem_kernel.dylib 0x388adf38 __psynch_cvwait + 24
1 libsystem_pthread.dylib 0x38916224 _pthread_cond_wait + 536
2 libsystem_pthread.dylib 0x38917000 pthread_cond_wait + 36
3 JavaScriptCore 0x2ec75236 JSC::GCThread::waitForNextPhase() + 74
4 JavaScriptCore 0x2ec75290 JSC::GCThread::gcThreadMain() + 48
5 JavaScriptCore 0x2ead73a0 WTF::wtfThreadEntryPoint(void*) + 12
6 libsystem_pthread.dylib 0x38916c1a _pthread_body + 138
7 libsystem_pthread.dylib 0x38916b8a _pthread_start + 98
8 libsystem_pthread.dylib 0x38914c8c thread_start + 4
Thread 15 name: WebCore: CFNetwork Loader
Thread 15:
0 libsystem_kernel.dylib 0x3889ba8c mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3889b888 mach_msg + 44
2 CoreFoundation 0x2db4b7be __CFRunLoopServiceMachPort + 150
3 CoreFoundation 0x2db49ee4 __CFRunLoopRun + 780
4 CoreFoundation 0x2dab4c22 CFRunLoopRunSpecific + 518
5 CoreFoundation 0x2dab4a06 CFRunLoopRunInMode + 102
6 WebCore 0x35cdfd5a WebCore::runLoaderThread(void*) + 250
7 JavaScriptCore 0x2ead73a0 WTF::wtfThreadEntryPoint(void*) + 12
8 libsystem_pthread.dylib 0x38916c1a _pthread_body + 138
9 libsystem_pthread.dylib 0x38916b8a _pthread_start + 98
10 libsystem_pthread.dylib 0x38914c8c thread_start + 4
Thread 1 crashed with ARM Thread State (32-bit):
r0: 0x00000004 r1: 0x00000000 r2: 0x00000000 r3: 0x001b56f0
r4: 0x00000001 r5: 0x00000000 r6: 0x00000000 r7: 0x001b5760
r8: 0x3a748170 r9: 0x00000001 r10: 0x00000000 r11: 0x3a747f40
ip: 0x00000171 sp: 0x001b56d0 lr: 0x387dc215 pc: 0x3889b83c
cpsr: 0x60000010
What could cause this crash?
try to enable breakpoints to all see below
In this way you should be able to identify the bad instruction before sigabrt signal.
I hope this could help

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