I have a little riddle to solve ... Our application crashes at startup (terrible error badf00d , which takes more than 5 seconds to run), but we cannot reproduce the problem. I managed to get crash logs from users. Unfortunately, I don't have .ipad to completely symbolize the crash (stupid mistake).
However, I wonder if it is impossible to find out what comes from the return line. There seems to be a dead end in some security code. It also seems to happen when trying to load the main view . Is it likely that this will be due to fake code? Any insight would be helpful!
Date/Time: 2014-10-02 23:34:23.472 +1000 Launch Time: 2014-10-02 23:34:03.057 +1000 OS Version: iOS 8.0.2 (12A405) Report Version: 105 Exception Type: 00000020 Exception Codes: 0x000000008badf00d Highlighted Thread: 0 Application Specific Information: com.myappsoftware.myapp failed to scene-create in time Elapsed total CPU time (seconds): 4.230 (user 4.230, system 0.000), 10% CPU Elapsed application CPU time (seconds): 1.039, 3% CPU Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0: 0 libsystem_kernel.dylib 0x36360540 semaphore_wait_trap + 8 1 libdispatch.dylib 0x36297eee _dispatch_semaphore_wait_slow + 186 2 libxpc.dylib 0x364077b8 xpc_connection_send_message_with_reply_sync + 152 3 Security 0x2b8dd310 securityd_message_with_reply_sync + 64 4 Security 0x2b8dd48c securityd_send_sync_and_do + 44 5 Security 0x2b8ea452 __SecItemCopyMatching_block_invoke + 166 6 Security 0x2b8e96f6 SecOSStatusWith + 14 7 Security 0x2b8ea36e SecItemCopyMatching + 174 8 My App 0x003e6db2 0x3a000 + 3853746 9 My App 0x0006bcd0 0x3a000 + 203984 10 My App 0x0006bd28 0x3a000 + 204072 11 My App 0x0006c8c4 0x3a000 + 207044 12 My App 0x0004bf7e 0x3a000 + 73598 13 UIKit 0x2bb1e12a -[UIViewController loadViewIfRequired] + 598 14 UIKit 0x2bbc7e00 -[UINavigationController _layoutViewController:] + 28 15 UIKit 0x2bbc7d28 -[UINavigationController _updateScrollViewFromViewController:toViewController:] + 224 16 UIKit 0x2bbc72be -[UINavigationController _startTransition:fromViewController:toViewController:] + 70 17 UIKit 0x2bbc6fee -[UINavigationController _startDeferredTransitionIfNeeded:] + 574 18 UIKit 0x2bbc6d58 -[UINavigationController __viewWillLayoutSubviews] + 40 19 UIKit 0x2bbc6cec -[UILayoutContainerView layoutSubviews] + 180 20 UIKit 0x2bb1b672 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 510 21 QuartzCore 0x2b543cc8 -[CALayer layoutSublayers] + 132 22 QuartzCore 0x2b53f6b0 CA::Layer::layout_if_needed(CA::Transaction*) + 356 23 QuartzCore 0x2b53f538 CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 12 24 QuartzCore 0x2b53ef1c CA::Context::commit_transaction(CA::Transaction*) + 220 25 QuartzCore 0x2b53ed20 CA::Transaction::commit() + 320 26 UIKit 0x2bd7f390 -[UIApplication _reportMainSceneUpdateFinished:] + 40 27 UIKit 0x2bd80138 -[UIApplication _runWithMainScene:transitionContext:completion:] + 2508 28 UIKit 0x2bd8a544 __84-[UIApplication _handleApplicationActivationWithScene:transitionContext:completion:]_block_invoke + 32 29 UIKit 0x2bd7e554 -[UIApplication workspaceDidEndTransaction:] + 128 30 FrontBoardServices 0x2edc10e6 __31-[FBSSerialQueue performAsync:]_block_invoke + 10 31 CoreFoundation 0x286465b2 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 10 32 CoreFoundation 0x28645874 __CFRunLoopDoBlocks + 212 33 CoreFoundation 0x286443ae __CFRunLoopRun + 1710 34 CoreFoundation 0x2859261c CFRunLoopRunSpecific + 472 35 CoreFoundation 0x2859242e CFRunLoopRunInMode + 102 36 UIKit 0x2bb8256a -[UIApplication _run] + 554 37 UIKit 0x2bb7d354 UIApplicationMain + 1436 38 My App 0x0004ac3a 0x3a000 + 68666 39 libdyld.dylib 0x362adaac start + 0
I really could symbolize the crash. This really weird and definitely looks like a dead end:
0 libsystem_kernel.dylib 0x3a64d540 semaphore_wait_trap + 8 1 libdispatch.dylib 0x3a584eee _dispatch_semaphore_wait_slow + 186 2 libxpc.dylib 0x3a6f47b8 xpc_connection_send_message_with_reply_sync + 152 3 Security 0x2fbca310 securityd_message_with_reply_sync + 64 4 Security 0x2fbca48c securityd_send_sync_and_do + 44 5 Security 0x2fbd7452 __SecItemCopyMatching_block_invoke + 166 6 Security 0x2fbd66f6 SecOSStatusWith + 14 7 Security 0x2fbd736e SecItemCopyMatching + 174 8 My App 0x004aadb2 +[SFHFKeychainUtils getPasswordForUsername:andServiceName:error:] + 390
I also have other stack traces where another thread is simultaneously stuck at the same point at the same time:
Thread 5 name: Dispatch queue: com.Flurry.Analytics.Session Thread 5: 0 libsystem_kernel.dylib 0x37c07540 semaphore_wait_trap + 8 1 libdispatch.dylib 0x37b3eeee _dispatch_semaphore_wait_slow + 186 2 libxpc.dylib 0x37cae7b8 xpc_connection_send_message_with_reply_sync + 152 3 Security 0x2d184310 securityd_message_with_reply_sync + 64 4 Security 0x2d18448c securityd_send_sync_and_do + 44 5 Security 0x2d1910fa __SecItemAdd_block_invoke + 158 6 Security 0x2d1906f6 SecOSStatusWith + 14 7 Security 0x2d190ac6 SecItemAdd + 338 8 My App 0x000c57a4 -[FlurryKeychainWrapper setData:forKey:] + 144 9 My App 0x000c569a -[FlurryKeychainWrapper setObject:forKey:] + 66 10 My App 0x000b75a8 -[FlurrySession initialTimestamp] + 880 11 My App 0x000b66a4 -[FlurrySession dataForSessions:] + 872 12 My App 0x000b503c -[FlurrySession sendSessionsToServerIncludingCurrentSession:] + 624 13 libdispatch.dylib 0x37b348c8 _dispatch_call_block_and_release + 8 14 libdispatch.dylib 0x37b3c64c _dispatch_queue_drain + 948 15 libdispatch.dylib 0x37b37098 _dispatch_queue_invoke + 80 16 libdispatch.dylib 0x37b3db9e _dispatch_root_queue_drain + 318 17 libdispatch.dylib 0x37b3ecd2 _dispatch_worker_thread3 + 90 18 libsystem_pthread.dylib 0x37c95e2e _pthread_wqthread + 666 19 libsystem_pthread.dylib 0x37c95b80 start_wqthread + 4
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