私は仕事用の iPad アプリに取り組んでいますが、iOS 7 へのアップデート以来、iPad でランダムにハングアップすることが見られます。私はXCodeでのデバッグに少し慣れていません。私が知る限り、何かが完了するのを待ってメインスレッドがブロックされていますが、それが何であるかはわかりません。スレッドダンプは次のとおりです。
* thread #1: tid = 0x260c, 0x384f4554 libsystem_kernel.dylib`__semwait_signal + 28, queue = 'com.apple.main-thread, stop reason = instruction step over
frame #0: 0x384f4554 libsystem_kernel.dylib`__semwait_signal + 28
frame #1: 0x3846580c libsystem_c.dylib`nanosleep + 172
frame #2: 0x3846575a libsystem_c.dylib`usleep + 50
frame #3: 0x2fd28b9e QuartzCore`native_window_begin_iosurface(_EAGLNativeWindowObject*) + 1062
frame #4: 0x2fa25d42 GLEngine`gliGetNewIOSurfaceES + 54
frame #5: 0x2c53d148 IMGSGX543GLDriver`sgxResolveDeferredFramebufferOffset + 48
frame #6: 0x2c5337a0 IMGSGX543GLDriver`sgxPatchDeferredFramebufferOffsets + 28
frame #7: 0x2c538a1c IMGSGX543GLDriver`sgxEndRender + 12
frame #8: 0x2c531828 IMGSGX543GLDriver`SubmitPackets + 24
frame #9: 0x2fa25c6a GLEngine`gliPresentViewES + 166
frame #10: 0x2fa30138 OpenGLES`-[EAGLContext presentRenderbuffer:] + 64
frame #11: 0x00cba74e libglInterpose.dylib`EAGLContext_presentRenderbuffer(EAGLContext*, objc_selector*, unsigned int) + 370
iOS 7 以降の iPad で OpenGL に関する同様の問題を見た人はいますか?
編集：リクエストにより、他のスレッド：
Thread 5:
* thread #5: tid = 0x3ade2, 0x3998e550 libsystem_kernel.dylib`__semwait_signal + 24, name = 'gputools.smt_poll.0x1461ec90
frame #0: 0x3998e550 libsystem_kernel.dylib`__semwait_signal + 24
frame #1: 0x398ff80c libsystem_c.dylib`nanosleep + 172
frame #2: 0x398ff75a libsystem_c.dylib`usleep + 50
frame #3: 0x00cb1f38 GPUToolsCore`smt_poll_thread_entry(void*) + 124
frame #4: 0x399f6c1c libsystem_pthread.dylib`_pthread_body + 140
frame #5: 0x399f6b8e libsystem_pthread.dylib`_pthread_start + 102
frame #6: 0x399f4c90 libsystem_pthread.dylib`thread_start + 8
Thread 6:
* thread #6: tid = 0x3ade4, 0x3997b83c libsystem_kernel.dylib`kevent64 + 24, queue = 'com.apple.libdispatch-manager
frame #0: 0x3997b83c libsystem_kernel.dylib`kevent64 + 24
frame #1: 0x398bc224 libdispatch.dylib`_dispatch_mgr_invoke + 232
frame #2: 0x398bbfaa libdispatch.dylib`_dispatch_mgr_thread$VARIANT$mp + 38
Thread 8:
* thread #8: tid = 0x3ade5, 0x3998df38 libsystem_kernel.dylib`__psynch_cvwait + 24
frame #0: 0x3998df38 libsystem_kernel.dylib`__psynch_cvwait + 24
frame #1: 0x399f6228 libsystem_pthread.dylib`_pthread_cond_wait + 540
frame #2: 0x399f7004 libsystem_pthread.dylib`pthread_cond_wait + 40
frame #3: 0x000c7f60 Bones`awThread::Condition::wait(this=0x145322a8, i=Interval at 0x032dcd78) + 100 at awThreadCondition.cpp:344
frame #4: 0x000c73f0 Bones`awThread::Barrier::Impl::wait(this=0x145322a0) + 596 at awThreadBarrier.cpp:52
frame #5: 0x000c716c Bones`awThread::Barrier::wait(this=0x14532290) + 28 at awThreadBarrier.cpp:118
frame #6: 0x000c9b0c Bones`awThread::PoolImpl::threadFunc(this=0x145321b0) + 260 at awThreadPoolImpl.cpp:133
frame #7: 0x000c960c Bones`awThread::PoolImpl::staticThreadFunc(data=0x145321b0) + 32 at awThreadPoolImpl.cpp:178
frame #8: 0x000c5d34 Bones`(anonymous namespace)::awThreadFunction(data_=0x1452bcd0) + 168 at awThread.cpp:79
frame #9: 0x399f6c1c libsystem_pthread.dylib`_pthread_body + 140
frame #10: 0x399f6b8e libsystem_pthread.dylib`_pthread_start + 102
Thread 9:
* thread #9: tid = 0x3ade6, 0x3998df38 libsystem_kernel.dylib`__psynch_cvwait + 24
frame #0: 0x3998df38 libsystem_kernel.dylib`__psynch_cvwait + 24
frame #1: 0x399f6228 libsystem_pthread.dylib`_pthread_cond_wait + 540
frame #2: 0x399f7004 libsystem_pthread.dylib`pthread_cond_wait + 40
frame #3: 0x000c7f60 Bones`awThread::Condition::wait(this=0x145322a8, i=Interval at 0x0335ed78) + 100 at awThreadCondition.cpp:344
frame #4: 0x000c73f0 Bones`awThread::Barrier::Impl::wait(this=0x145322a0) + 596 at awThreadBarrier.cpp:52
frame #5: 0x000c716c Bones`awThread::Barrier::wait(this=0x14532290) + 28 at awThreadBarrier.cpp:118
frame #6: 0x000c9b0c Bones`awThread::PoolImpl::threadFunc(this=0x145321b0) + 260 at awThreadPoolImpl.cpp:133
frame #7: 0x000c960c Bones`awThread::PoolImpl::staticThreadFunc(data=0x145321b0) + 32 at awThreadPoolImpl.cpp:178
frame #8: 0x000c5d34 Bones`(anonymous namespace)::awThreadFunction(data_=0x14532280) + 168 at awThread.cpp:79
frame #9: 0x399f6c1c libsystem_pthread.dylib`_pthread_body + 140
frame #10: 0x399f6b8e libsystem_pthread.dylib`_pthread_start + 102
Thread 12:
* thread #12: tid = 0x3ae4e, 0x3997ba8c libsystem_kernel.dylib`mach_msg_trap + 20, name = 'com.apple.NSURLConnectionLoader
frame #0: 0x3997ba8c libsystem_kernel.dylib`mach_msg_trap + 20
frame #1: 0x3997b88c libsystem_kernel.dylib`mach_msg + 48
frame #2: 0x2ec937ca CoreFoundation`__CFRunLoopServiceMachPort + 154
frame #3: 0x2ec91ef0 CoreFoundation`__CFRunLoopRun + 784
frame #4: 0x2ebfcce6 CoreFoundation`CFRunLoopRunSpecific + 522
frame #5: 0x2ebfcaca CoreFoundation`CFRunLoopRunInMode + 106
frame #6: 0x2f636496 Foundation`+[NSURLConnection(Loader) _resourceLoadLoop:] + 318
frame #7: 0x2f6abe26 Foundation`__NSThread__main__ + 1062
frame #8: 0x399f6c1c libsystem_pthread.dylib`_pthread_body + 140
frame #9: 0x399f6b8e libsystem_pthread.dylib`_pthread_start + 102
Thread 15:
* thread #15: tid = 0x3ae54, 0x3998e440 libsystem_kernel.dylib`select$DARWIN_EXTSN + 20, name = 'com.apple.CFSocket.private
frame #0: 0x3998e440 libsystem_kernel.dylib`select$DARWIN_EXTSN + 20
frame #1: 0x2ec9768c CoreFoundation`__CFSocketManager + 484
frame #2: 0x399f6c1c libsystem_pthread.dylib`_pthread_body + 140
frame #3: 0x399f6b8e libsystem_pthread.dylib`_pthread_start + 102
Thread 23:
* thread #23: tid = 0x3b191, 0x3998ec7c libsystem_kernel.dylib`__workq_kernreturn + 8
frame #0: 0x3998ec7c libsystem_kernel.dylib`__workq_kernreturn + 8
frame #1: 0x399f4dca libsystem_pthread.dylib`_pthread_wqthread + 310
frame #2: 0x399f4c84 libsystem_pthread.dylib`start_wqthread + 8