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Launch Timeout on iOS/Unity

By tomwilson on Wed, 06/20/2012 - 17:12
Has anybody else experienced launch timeouts when launching on iOS? It's not all that common but when it happens it looks like something in either Unity or QCAR is looping forever. Here's a crash report from apple: [code] failed to launch in time Elapsed total CPU time (seconds): 7.410 (user 7.410, system 0.000), 37% CPU Elapsed application CPU time (seconds): 1.521, 8% CPU Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0: 0 libsystem_kernel.dylib 0x31557004 mach_msg_trap + 20 1 libsystem_kernel.dylib 0x315571fa mach_msg + 50 2 AudioToolbox 0x36925c16 AUIOClient_StartIO + 102 3 AudioToolbox 0x369310a4 AURemoteIO::Start() + 1060 4 AudioToolbox 0x36968726 _ZL13AUMethodStartPv + 130 5 AudioToolbox 0x36966eb6 AudioOutputUnitStart + 26 6 viewa 0x00818a34 QCAR::DataSet::~DataSet() + 2286372 7 viewa 0x0082e56c QCAR::DataSet::~DataSet() + 2375260 8 viewa 0x008280f8 QCAR::DataSet::~DataSet() + 2349544 9 viewa 0x006b4bfc QCAR::DataSet::~DataSet() + 828652 10 viewa 0x006b59b0 QCAR::DataSet::~DataSet() + 832160 11 viewa 0x006b85e0 QCAR::DataSet::~DataSet() + 843472 12 viewa 0x00795624 QCAR::DataSet::~DataSet() + 1748756 13 viewa 0x006c13e0 QCAR::DataSet::~DataSet() + 879824 14 viewa 0x006ac0e8 QCAR::DataSet::~DataSet() + 793048 15 viewa 0x007662ac QCAR::DataSet::~DataSet() + 1555356 16 viewa 0x0075b48c QCAR::DataSet::~DataSet() + 1510780 17 viewa 0x0064e5a0 QCAR::DataSet::~DataSet() + 409232 18 viewa 0x0005e494 0x00004494 19 viewa 0x0005e838 0x00004838 20 UIKit 0x310bccfa -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1262 21 UIKit 0x310b67d6 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 402 22 UIKit 0x31084abc -[UIApplication handleEvent:withNewEvent:] + 1004 23 UIKit 0x31084560 -[UIApplication sendEvent:] + 48 24 UIKit 0x31083f34 _UIApplicationHandleEvent + 5820 25 GraphicsServices 0x33ac6224 PurpleEventCallback + 876 26 CoreFoundation 0x3738451c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 32 27 CoreFoundation 0x373844be __CFRunLoopDoSource1 + 134 28 CoreFoundation 0x3738330c __CFRunLoopRun + 1364 29 CoreFoundation 0x3730649e CFRunLoopRunSpecific + 294 30 CoreFoundation 0x37306366 CFRunLoopRunInMode + 98 31 UIKit 0x310b5864 -[UIApplication _run] + 544 32 UIKit 0x310b2cce UIApplicationMain + 1074 33 viewa 0x0005f7cc 0x000057cc 34 viewa 0x0005d190 0x00003190 Thread 1 name: Dispatch queue: com.apple.libdispatch-manager Thread 1: 0 libsystem_kernel.dylib 0x315573a8 kevent + 24 1 libdispatch.dylib 0x304dcea4 _dispatch_mgr_invoke + 708 2 libdispatch.dylib 0x304dcbc2 _dispatch_mgr_thread + 30 Thread 2 name: WebThread Thread 2: 0 libsystem_kernel.dylib 0x31557004 mach_msg_trap + 20 1 libsystem_kernel.dylib 0x315571fa mach_msg + 50 2 CoreFoundation 0x373843ec __CFRunLoopServiceMachPort + 120 3 CoreFoundation 0x37383124 __CFRunLoopRun + 876 4 CoreFoundation 0x3730649e CFRunLoopRunSpecific + 294 5 CoreFoundation 0x37306366 CFRunLoopRunInMode + 98 6 WebCore 0x32cafc9c _ZL12RunWebThreadPv + 396 7 libsystem_c.dylib 0x33c2572e _pthread_start + 314 8 libsystem_c.dylib 0x33c255e8 thread_start + 0 Thread 3 name: com.apple.NSURLConnectionLoader Thread 3: 0 libsystem_kernel.dylib 0x31557004 mach_msg_trap + 20 1 libsystem_kernel.dylib 0x315571fa mach_msg + 50 2 CoreFoundation 0x373843ec __CFRunLoopServiceMachPort + 120 3 CoreFoundation 0x37383124 __CFRunLoopRun + 876 4 CoreFoundation 0x3730649e CFRunLoopRunSpecific + 294 5 CoreFoundation 0x37306366 CFRunLoopRunInMode + 98 6 Foundation 0x37b96bb2 +[NSURLConnection(Loader) _resourceLoadLoop:] + 302 7 Foundation 0x37b96a7a -[NSThread main] + 66 8 Foundation 0x37c2a58a __NSThread__main__ + 1042 9 libsystem_c.dylib 0x33c2572e _pthread_start + 314 10 libsystem_c.dylib 0x33c255e8 thread_start + 0 Thread 4 name: com.apple.CFSocket.private Thread 4: 0 libsystem_kernel.dylib 0x31567570 __select + 20 1 CoreFoundation 0x3738863a __CFSocketManager + 726 2 libsystem_c.dylib 0x33c2572e _pthread_start + 314 3 libsystem_c.dylib 0x33c255e8 thread_start + 0 Thread 5: 0 libsystem_kernel.dylib 0x31567cd4 __workq_kernreturn + 8 1 libsystem_c.dylib 0x33c1ff36 _pthread_wqthread + 610 2 libsystem_c.dylib 0x33c1fcc8 start_wqthread + 0 Thread 6: 0 libsystem_kernel.dylib 0x31567cd4 __workq_kernreturn + 8 1 libsystem_c.dylib 0x33c1ff36 _pthread_wqthread + 610 2 libsystem_c.dylib 0x33c1fcc8 start_wqthread + 0 Thread 7: 0 libsystem_kernel.dylib 0x31567cd4 __workq_kernreturn + 8 1 libsystem_c.dylib 0x33c1ff36 _pthread_wqthread + 610 2 libsystem_c.dylib 0x33c1fcc8 start_wqthread + 0 Thread 8 name: com.apple.coremedia.player.async Thread 8: 0 libsystem_kernel.dylib 0x31567068 __psynch_cvwait + 24 1 libsystem_c.dylib 0x33c25a46 _pthread_cond_wait + 634 2 libsystem_c.dylib 0x33c257c2 pthread_cond_wait + 34 3 CoreMedia 0x367fd868 FigSemaphoreWaitRelative + 268 4 MediaToolbox 0x353473e6 fpa_AsyncMovieControlThread + 22 5 CoreMedia 0x3681c8b4 figThreadMain + 168 6 libsystem_c.dylib 0x33c2572e _pthread_start + 314 7 libsystem_c.dylib 0x33c255e8 thread_start + 0 Thread 9: 0 libsystem_kernel.dylib 0x31557054 semaphore_wait_trap + 8 1 viewa 0x00a8ea44 QCAR::DataSet::~DataSet() + 4866868 2 viewa 0x009f38c8 QCAR::DataSet::~DataSet() + 4231608 3 viewa 0x00a6ba00 QCAR::DataSet::~DataSet() + 4723440 4 viewa 0x00a86d78 QCAR::DataSet::~DataSet() + 4834920 5 viewa 0x00aa2a54 QCAR::DataSet::~DataSet() + 4948804 6 libsystem_c.dylib 0x33c2572e _pthread_start + 314 7 libsystem_c.dylib 0x33c255e8 thread_start + 0 Thread 10: 0 libsystem_kernel.dylib 0x31557054 semaphore_wait_trap + 8 1 viewa 0x00816210 QCAR::DataSet::~DataSet() + 2276096 2 viewa 0x008328b8 QCAR::DataSet::~DataSet() + 2392488 3 libsystem_c.dylib 0x33c2572e _pthread_start + 314 4 libsystem_c.dylib 0x33c255e8 thread_start + 0 Thread 11 name: AURemoteIO::IOThread Thread 11: 0 libsystem_kernel.dylib 0x31557004 mach_msg_trap + 20 1 libsystem_kernel.dylib 0x315571fa mach_msg + 50 2 AudioToolbox 0x36930312 AURemoteIO::IOThread::Run() + 98 3 AudioToolbox 0x36933f42 AURemoteIO::IOThread::Entry(void*) + 2 4 AudioToolbox 0x36870c9c CAPThread::Entry(CAPThread*) + 208 5 libsystem_c.dylib 0x33c2572e _pthread_start + 314 6 libsystem_c.dylib 0x33c255e8 thread_start + 0 Unknown thread crashed with unknown flavor: 5, state_count: 1 [/code] Dataset destructor calls (QCAR::DataSet::~DataSet()) stand out to me as being a bit weird, as I'm not loading a dataset at launch?

tomwilson

Tue, 06/05/2012 - 03:14

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Not reproduceable but I have seen it happen myself. I'd estimate maybe 1-2% of app launches do it, at most. Seems to be more likely on the slower devices. This is using unity 3.4.

tomwilson

Tue, 06/05/2012 - 08:21

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http://charlesproxy.com/) I noticed that the app on first launch does a http POST to http://dp.qcarsdk.com/ and downloads something. The post params are: [code] POST /arws/config/ HTTP/1.1 Host: dp.qcarsdk.com User-Agent: XXXXX/XX CFNetwork/548.1.4 Darwi

I think I know what the problem might be. You are using an iPhone 3G which is not officially supported. The "lowest" device supported is a 3GS. HTH N

tomwilson

Tue, 06/05/2012 - 09:14

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I meant iPod 3G as in, iPod 3rd generation, which is roughly iPhone 4ish in spec, but the device has no bearing on my findings you can repeat it on anything that will run QCAR :)

garyriches

Wed, 06/06/2012 - 13:14

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The 8GB 3rd generation iPod is not equivalent to an iPhone 4. The 8GB version is the same almost as the second gen iPod. It doesn't support OpenGL ES 2.0. It has a slower CPU. Apple released the iPod Touch 2nd gen as the iPod Touch 3rd gen 8GB.