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Crash on iOS when going to google maps, go back and then press some widget. #34509

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Crash on iOS when going to google maps, go back and then press some widget.#34509
Labels
c: crashStack traces logged to the consolecustomer: crowdAffects or could affect many people, though not necessarily a specific customer.engineflutter/engine related. See also e: labels.platform-iosiOS applications specificallywaiting for responseThe Flutter team cannot make further progress on this issue until the original reporter responds

Description

@p493z3r0
p493z3r0
opened on Jun 14, 2019

Steps to Reproduce

Hi Folks,

I have an App which has google maps implemented and some firebase functions.
When i go to google maps and then wait for approximately 5 seconds and then switch back to a selection and click any widget, the app crashes. This does only affect iOS.

Logs


thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x20)
    frame #0: 0x00000001a48bc568 GLEngine`gleRunVertexSubmitARM + 2860
    frame #1: 0x00000001a48b9914 GLEngine`gleSetVertexArrayFunc + 144
    frame #2: 0x00000001a4861438 GLEngine`glDrawElementsInstanced_ACC_ES2Exec + 704
    frame #3: 0x0000000105393650 Flutter`GrGLGpu::sendIndexedInstancedMeshToGpu(GrPrimitiveType, GrBuffer const*, int, int, GrBuffer const*, int, GrBuffer const*, int, int, GrPrimitiveRestart) + 272
    frame #4: 0x00000001053936bc Flutter`non-virtual thunk to GrGLGpu::sendIndexedInstancedMeshToGpu(GrPrimitiveType, GrBuffer const*, int, int, GrBuffer const*, int, GrBuffer const*, int, int, GrPrimitiveRestart) + 36
    frame #5: 0x0000000105393118 Flutter`GrMesh::sendToGpu(GrMesh::SendToGpuImpl*) const + 224
    frame #6: 0x0000000105392fb4 Flutter`GrGLGpu::draw(GrRenderTarget*, GrSurfaceOrigin, GrPrimitiveProcessor const&, GrPipeline const&, GrPipeline::FixedDynamicState const*, GrPipeline::DynamicStateArrays const*, GrMesh const*, int) + 544
    frame #7: 0x0000000105396fcc Flutter`GrGLGpuRTCommandBuffer::onDraw(GrPrimitiveProcessor const&, GrPipeline const&, GrPipeline::FixedDynamicState const*, GrPipeline::DynamicStateArrays const*, GrMesh const*, int, SkRect const&) + 56
    frame #8: 0x0000000105306cd8 Flutter`GrGpuRTCommandBuffer::draw(GrPrimitiveProcessor const&, GrPipeline const&, GrPipeline::FixedDynamicState const*, GrPipeline::DynamicStateArrays const*, GrMesh const*, int, SkRect const&) + 192
    frame #9: 0x0000000105347b2c Flutter`GrFillRRectOp::onExecute(GrOpFlushState*, SkRect const&) + 1484
    frame #10: 0x000000010531ddc4 Flutter`GrOp::execute(GrOpFlushState*, SkRect const&) + 236
    frame #11: 0x000000010531dc58 Flutter`GrRenderTargetOpList::onExecute(GrOpFlushState*) + 452
    frame #12: 0x00000001052ffaa0 Flutter`GrDrawingManager::executeOpLists(int, int, GrOpFlushState*, int*) + 448
    frame #13: 0x00000001052ff704 Flutter`GrDrawingManager::flush(GrSurfaceProxy**, int, SkSurface::BackendSurfaceAccess, GrFlushInfo const&, GrPrepareForExternalIORequests const&) + 1436
    frame #14: 0x00000001052ffbe8 Flutter`GrDrawingManager::flushSurfaces(GrSurfaceProxy**, int, SkSurface::BackendSurfaceAccess, GrFlushInfo const&) + 124
    frame #15: 0x000000010531b2a4 Flutter`GrRenderTargetContext::flush(SkSurface::BackendSurfaceAccess, GrFlushInfo const&) + 280
    frame #16: 0x00000001053addf4 Flutter`SkGpuDevice::flush() + 36
    frame #17: 0x00000001055152d4 Flutter`flutter::GPUSurfaceGL::PresentSurface(SkCanvas*) + 240
    frame #18: 0x00000001051e2cd0 Flutter`flutter::SurfaceFrame::PerformSubmit() + 88
    frame #19: 0x00000001051e2c68 Flutter`flutter::SurfaceFrame::Submit() + 36
    frame #20: 0x00000001051d469c Flutter`flutter::Rasterizer::DrawToSurface(flutter::LayerTree&) + 268
    frame #21: 0x00000001051d49b4 Flutter`flutter::Rasterizer::DoDraw(std::__1::unique_ptr<flutter::LayerTree, std::__1::default_delete<flutter::LayerTree> >) + 88
    frame #22: 0x00000001051d566c Flutter`std::__1::__function::__func<std::__1::__bind<void (flutter::Rasterizer::*)(std::__1::unique_ptr<flutter::LayerTree, std::__1::default_delete<flutter::LayerTree> >), flutter::Rasterizer*, std::__1::placeholders::__ph<1> const&>, std::__1::allocator<std::__1::__bind<void (flutter::Rasterizer::*)(std::__1::unique_ptr<flutter::LayerTree, std::__1::default_delete<flutter::LayerTree> >), flutter::Rasterizer*, std::__1::placeholders::__ph<1> const&> >, void (std::__1::unique_ptr<flutter::LayerTree, std::__1::default_delete<flutter::LayerTree> >)>::operator()(std::__1::unique_ptr<flutter::LayerTree, std::__1::default_delete<flutter::LayerTree> >&&) + 56
    frame #23: 0x00000001051d4af0 Flutter`flutter::Pipeline<flutter::LayerTree>::Consume(std::__1::function<void (std::__1::unique_ptr<flutter::LayerTree, std::__1::default_delete<flutter::LayerTree> >)>) + 188
    frame #24: 0x00000001051d47ec Flutter`flutter::Rasterizer::Draw(fml::RefPtr<flutter::Pipeline<flutter::LayerTree> >) + 144
    frame #25: 0x00000001051e0b54 Flutter`std::__1::__function::__func<flutter::Shell::OnAnimatorDraw(fml::RefPtr<flutter::Pipeline<flutter::LayerTree> >)::$_24, std::__1::allocator<flutter::Shell::OnAnimatorDraw(fml::RefPtr<flutter::Pipeline<flutter::LayerTree> >)::$_24>, void ()>::operator()() + 72
    frame #26: 0x0000000105194618 Flutter`fml::MessageLoopImpl::FlushTasks(fml::MessageLoopImpl::FlushType) + 836
    frame #27: 0x0000000105197bf8 Flutter`fml::MessageLoopDarwin::OnTimerFire(__CFRunLoopTimer*, fml::MessageLoopDarwin*) + 32
    frame #28: 0x000000018328f650 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 28
    frame #29: 0x000000018328f380 CoreFoundation`__CFRunLoopDoTimer + 864
    frame #30: 0x000000018328ebb4 CoreFoundation`__CFRunLoopDoTimers + 248
    frame #31: 0x0000000183289b04 CoreFoundation`__CFRunLoopRun + 1844
    frame #32: 0x00000001832890b0 CoreFoundation`CFRunLoopRunSpecific + 436
    frame #33: 0x000000018548979c GraphicsServices`GSEventRunModal + 104
    frame #34: 0x00000001afc03978 UIKitCore`UIApplicationMain + 212
  * frame #35: 0x0000000102a28ae8 Runner`main(argc=1, argv=0x000000016d3dbb28) at main.m:7:12
    frame #36: 0x0000000182d4e8e0 libdyld.dylib`start + 4
  thread #2, queue = 'com.google.firebase.firestore.rpc'
    frame #0: 0x0000000182e9bfd8 libsystem_kernel.dylib`poll + 8
    frame #1: 0x0000000106f9393c grpc`pollset_work(pollset=0x00000001090181e8, worker_hdl=0x0000000000000000, deadline=9223372036854775807) at ev_poll_posix.cc:1012:11
    frame #2: 0x0000000106f971dc grpc`pollset_work(pollset=0x00000001090181e8, worker=0x0000000000000000, deadline=9223372036854775807) at ev_posix.cc:322:21
    frame #3: 0x000000010700a32c grpc`grpc_pollset_work(pollset=0x00000001090181e8, worker=0x0000000000000000, deadline=9223372036854775807) at pollset.cc:48:10
    frame #4: 0x0000000106f80c14 grpc`cq_next(cq=0x00000001090180e0, deadline=(tv_sec = 9223372036854775807, tv_nsec = 0, clock_type = GPR_CLOCK_REALTIME), reserved=0x0000000000000000) at completion_queue.cc:1030:23
    frame #5: 0x0000000106f80090 grpc`::grpc_completion_queue_next(cq=0x00000001090180e0, deadline=(tv_sec = 9223372036854775807, tv_nsec = 0, clock_type = GPR_CLOCK_REALTIME), reserved=0x0000000000000000) at completion_queue.cc:1106:10
    frame #6: 0x00000001073b0f68 grpcpp`grpc_impl::CompletionQueue::AsyncNextInternal(this=0x0000000282239658, tag=0x000000016d4627e8, ok=0x000000016d4627e7, deadline=(tv_sec = 9223372036854775807, tv_nsec = 0, clock_type = GPR_CLOCK_REALTIME)) at completion_queue_cc.cc:48:15
    frame #7: 0x0000000102ab0224 Runner`grpc_impl::CompletionQueue::Next(this=0x0000000282239658, tag=0x000000016d4627e8, ok=0x000000016d4627e7) at completion_queue_impl.h:179:13
    frame #8: 0x0000000102ab0108 Runner`firebase::firestore::remote::Datastore::PollGrpcQueue(this=0x0000000282239618) at datastore.mm:143:22
    frame #9: 0x0000000102ab7160 Runner`firebase::firestore::remote::Datastore::Start(this=0x0000000281e2a8c8)::$_0::operator()() const at datastore.mm:116:35
    frame #10: 0x0000000102ab7124 Runner`decltype(__f=0x0000000281e2a8c8)::$_0&>(fp)()) std::__1::__invoke<firebase::firestore::remote::Datastore::Start()::$_0&>(firebase::firestore::remote::Datastore::Start()::$_0&) at type_traits:4339:1
    frame #11: 0x0000000102ab70d8 Runner`void std::__1::__invoke_void_return_wrapper<void>::__call<firebase::firestore::remote::Datastore::Start(__args=0x0000000281e2a8c8)::$_0&>(firebase::firestore::remote::Datastore::Start()::$_0&) at __functional_base:349:9
    frame #12: 0x0000000102ab59dc Runner`std::__1::__function::__func<firebase::firestore::remote::Datastore::Start()::$_0, std::__1::allocator<firebase::firestore::remote::Datastore::Start()::$_0>, void ()>::operator(this=0x0000000281e2a8c0)() at functional:1562:12
    frame #13: 0x0000000102be0c90 Runner`std::__1::function<void ()>::operator(this= Lambda in File datastore.mm at Line 116)() const at functional:1913:12
    frame #14: 0x0000000102b00958 Runner`firebase::firestore::util::internal::DispatchAsync(this=0x0000000281e2a8c0, raw_work=0x0000000281e2a8c0)>&&)::$_0::operator()(void*) const at executor_libdispatch.mm:57:5
    frame #15: 0x0000000102b00928 Runner`firebase::firestore::util::internal::DispatchAsync(raw_work=0x0000000281e2a8c0)>&&)::$_0::__invoke(void*) at executor_libdispatch.mm:55:33
    frame #16: 0x0000000182d3d7d4 libdispatch.dylib`_dispatch_client_callout + 16
    frame #17: 0x0000000182d18dec libdispatch.dylib`_dispatch_lane_serial_drain$VARIANT$armv81 + 548
    frame #18: 0x0000000182d1992c libdispatch.dylib`_dispatch_lane_invoke$VARIANT$armv81 + 408
    frame #19: 0x0000000182d21e08 libdispatch.dylib`_dispatch_workloop_worker_thread + 584
    frame #20: 0x0000000182f1d114 libsystem_pthread.dylib`_pthread_wqthread + 304
    frame #21: 0x0000000182f1fcd4 libsystem_pthread.dylib`start_wqthread + 4
  thread #4
    frame #0: 0x0000000182e9ab74 libsystem_kernel.dylib`__workq_kernreturn + 8
    frame #1: 0x0000000182f1d138 libsystem_pthread.dylib`_pthread_wqthread + 340
    frame #2: 0x0000000182f1fcd4 libsystem_pthread.dylib`start_wqthread + 4
  thread #5, name = 'com.apple.uikit.eventfetch-thread'
    frame #0: 0x0000000182e8f0f4 libsystem_kernel.dylib`mach_msg_trap + 8
    frame #1: 0x0000000182e8e5a0 libsystem_kernel.dylib`mach_msg + 72
    frame #2: 0x000000018328ea10 CoreFoundation`__CFRunLoopServiceMachPort + 236
    frame #3: 0x0000000183289920 CoreFoundation`__CFRunLoopRun + 1360
    frame #4: 0x00000001832890b0 CoreFoundation`CFRunLoopRunSpecific + 436
    frame #5: 0x0000000183c56fac Foundation`-[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 300
    frame #6: 0x0000000183c56e3c Foundation`-[NSRunLoop(NSRunLoop) runUntilDate:] + 96
    frame #7: 0x00000001afce9494 UIKitCore`-[UIEventFetcher threadMain] + 136
    frame #8: 0x0000000183d836a4 Foundation`__NSThread__start__ + 984
    frame #9: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #10: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #11: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #6, name = 'io.flutter.1.ui'
    frame #0: 0x0000000105701578 Flutter`dart::Thread::EnterApiScope() + 28
    frame #1: 0x00000001058a48d8 Flutter`Dart_EnterScope + 152
    frame #2: 0x0000000105480600 Flutter`tonic::DartState::Scope::Scope(std::__1::shared_ptr<tonic::DartState>) + 32
    frame #3: 0x00000001051c8434 Flutter`flutter::RuntimeController::NotifyIdle(long long) + 96
    frame #4: 0x00000001051cfcb0 Flutter`flutter::Engine::NotifyIdle(long long) + 120
    frame #5: 0x00000001051cce88 Flutter`flutter::Animator::AwaitVSync() + 172
    frame #6: 0x0000000105194618 Flutter`fml::MessageLoopImpl::FlushTasks(fml::MessageLoopImpl::FlushType) + 836
    frame #7: 0x0000000105197bf8 Flutter`fml::MessageLoopDarwin::OnTimerFire(__CFRunLoopTimer*, fml::MessageLoopDarwin*) + 32
    frame #8: 0x000000018328f650 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 28
    frame #9: 0x000000018328f380 CoreFoundation`__CFRunLoopDoTimer + 864
    frame #10: 0x000000018328ebb4 CoreFoundation`__CFRunLoopDoTimers + 248
    frame #11: 0x0000000183289b04 CoreFoundation`__CFRunLoopRun + 1844
    frame #12: 0x00000001832890b0 CoreFoundation`CFRunLoopRunSpecific + 436
    frame #13: 0x0000000105197d1c Flutter`fml::MessageLoopDarwin::Run() + 88
    frame #14: 0x0000000105194258 Flutter`fml::MessageLoopImpl::DoRun() + 52
    frame #15: 0x0000000105197234 Flutter`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, fml::Thread::Thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)::$_0> >(void*) + 200
    frame #16: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #17: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #18: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #7, name = 'io.flutter.1.gpu'
    frame #0: 0x0000000182e8f0f4 libsystem_kernel.dylib`mach_msg_trap + 8
    frame #1: 0x0000000182e8e5a0 libsystem_kernel.dylib`mach_msg + 72
    frame #2: 0x000000018328ea10 CoreFoundation`__CFRunLoopServiceMachPort + 236
    frame #3: 0x0000000183289920 CoreFoundation`__CFRunLoopRun + 1360
    frame #4: 0x00000001832890b0 CoreFoundation`CFRunLoopRunSpecific + 436
    frame #5: 0x0000000105197d1c Flutter`fml::MessageLoopDarwin::Run() + 88
    frame #6: 0x0000000105194258 Flutter`fml::MessageLoopImpl::DoRun() + 52
    frame #7: 0x0000000105197234 Flutter`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, fml::Thread::Thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)::$_0> >(void*) + 200
    frame #8: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #9: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #10: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #8, name = 'io.flutter.1.io'
    frame #0: 0x0000000182e8f0f4 libsystem_kernel.dylib`mach_msg_trap + 8
    frame #1: 0x0000000182e8e5a0 libsystem_kernel.dylib`mach_msg + 72
    frame #2: 0x000000018328ea10 CoreFoundation`__CFRunLoopServiceMachPort + 236
    frame #3: 0x0000000183289920 CoreFoundation`__CFRunLoopRun + 1360
    frame #4: 0x00000001832890b0 CoreFoundation`CFRunLoopRunSpecific + 436
    frame #5: 0x0000000105197d1c Flutter`fml::MessageLoopDarwin::Run() + 88
    frame #6: 0x0000000105194258 Flutter`fml::MessageLoopImpl::DoRun() + 52
    frame #7: 0x0000000105197234 Flutter`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, fml::Thread::Thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)::$_0> >(void*) + 200
    frame #8: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #9: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #10: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #9, name = 'dart:io EventHandler'
    frame #0: 0x0000000182e9b8f4 libsystem_kernel.dylib`kevent + 8
    frame #1: 0x0000000105486a70 Flutter`dart::bin::EventHandlerImplementation::EventHandlerEntry(unsigned long) + 232
    frame #2: 0x00000001054a23c0 Flutter`dart::bin::ThreadStart(void*) + 48
    frame #3: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #4: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #5: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #10, name = 'Dart ThreadPool Worker'
    frame #0: 0x0000000182e99ee4 libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x0000000182f194a4 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 628
    frame #2: 0x000000010567d170 Flutter`dart::Monitor::Wait(long long) + 156
    frame #3: 0x000000010580c6ec Flutter`dart::BackgroundCompiler::Run() + 812
    frame #4: 0x0000000105702868 Flutter`dart::ThreadPool::Worker::Loop() + 200
    frame #5: 0x00000001057026a4 Flutter`dart::ThreadPool::Worker::Main(unsigned long) + 176
    frame #6: 0x000000010567c98c Flutter`dart::ThreadStart(void*) + 76
    frame #7: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #8: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #9: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #11
    frame #0: 0x0000000182f1fcd0 libsystem_pthread.dylib`start_wqthread
  thread #12, name = 'com.apple.CFSocket.private'
    frame #0: 0x0000000182e9a328 libsystem_kernel.dylib`__select + 8
    frame #1: 0x00000001832976f4 CoreFoundation`__CFSocketManager + 620
    frame #2: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #3: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #4: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #13, name = 'io.flutter.plugins.location_background.2.ui'
    frame #0: 0x0000000182e8f0f4 libsystem_kernel.dylib`mach_msg_trap + 8
    frame #1: 0x0000000182e8e5a0 libsystem_kernel.dylib`mach_msg + 72
    frame #2: 0x000000018328ea10 CoreFoundation`__CFRunLoopServiceMachPort + 236
    frame #3: 0x0000000183289920 CoreFoundation`__CFRunLoopRun + 1360
    frame #4: 0x00000001832890b0 CoreFoundation`CFRunLoopRunSpecific + 436
    frame #5: 0x0000000105197d1c Flutter`fml::MessageLoopDarwin::Run() + 88
    frame #6: 0x0000000105194258 Flutter`fml::MessageLoopImpl::DoRun() + 52
    frame #7: 0x0000000105197234 Flutter`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, fml::Thread::Thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)::$_0> >(void*) + 200
    frame #8: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #9: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #10: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #14, name = 'io.flutter.plugins.location_background.2.gpu'
    frame #0: 0x0000000182e8f0f4 libsystem_kernel.dylib`mach_msg_trap + 8
    frame #1: 0x0000000182e8e5a0 libsystem_kernel.dylib`mach_msg + 72
    frame #2: 0x000000018328ea10 CoreFoundation`__CFRunLoopServiceMachPort + 236
    frame #3: 0x0000000183289920 CoreFoundation`__CFRunLoopRun + 1360
    frame #4: 0x00000001832890b0 CoreFoundation`CFRunLoopRunSpecific + 436
    frame #5: 0x0000000105197d1c Flutter`fml::MessageLoopDarwin::Run() + 88
    frame #6: 0x0000000105194258 Flutter`fml::MessageLoopImpl::DoRun() + 52
    frame #7: 0x0000000105197234 Flutter`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, fml::Thread::Thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)::$_0> >(void*) + 200
    frame #8: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #9: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #10: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #15, name = 'io.flutter.plugins.location_background.2.io'
    frame #0: 0x0000000182e8f0f4 libsystem_kernel.dylib`mach_msg_trap + 8
    frame #1: 0x0000000182e8e5a0 libsystem_kernel.dylib`mach_msg + 72
    frame #2: 0x000000018328ea10 CoreFoundation`__CFRunLoopServiceMachPort + 236
    frame #3: 0x0000000183289920 CoreFoundation`__CFRunLoopRun + 1360
    frame #4: 0x00000001832890b0 CoreFoundation`CFRunLoopRunSpecific + 436
    frame #5: 0x0000000105197d1c Flutter`fml::MessageLoopDarwin::Run() + 88
    frame #6: 0x0000000105194258 Flutter`fml::MessageLoopImpl::DoRun() + 52
    frame #7: 0x0000000105197234 Flutter`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, fml::Thread::Thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)::$_0> >(void*) + 200
    frame #8: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #9: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #10: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #16, name = 'com.apple.NSURLConnectionLoader'
    frame #0: 0x0000000182e8f0f4 libsystem_kernel.dylib`mach_msg_trap + 8
    frame #1: 0x0000000182e8e5a0 libsystem_kernel.dylib`mach_msg + 72
    frame #2: 0x000000018328ea10 CoreFoundation`__CFRunLoopServiceMachPort + 236
    frame #3: 0x0000000183289920 CoreFoundation`__CFRunLoopRun + 1360
    frame #4: 0x00000001832890b0 CoreFoundation`CFRunLoopRunSpecific + 436
    frame #5: 0x00000001838a274c CFNetwork`-[__CoreSchedulingSetRunnable runForever] + 216
    frame #6: 0x0000000183d836a4 Foundation`__NSThread__start__ + 984
    frame #7: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #8: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #9: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #17
    frame #0: 0x0000000182e99ee4 libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x0000000182f194a4 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 628
    frame #2: 0x00000001078dfc54 leveldb`leveldb::(anonymous namespace)::PosixEnv::BGThread(this=0x0000000109016a10) at env_posix.cc:640:27
    frame #3: 0x00000001078dfa7c leveldb`leveldb::(anonymous namespace)::PosixEnv::BGThreadWrapper(arg=0x0000000109016a10) at env_posix.cc:555:39
    frame #4: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #5: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #6: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #18
    frame #0: 0x0000000182e99ee4 libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x0000000182f194a4 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 628
    frame #2: 0x0000000107060bd4 grpc`::gpr_cv_wait(cv=0x0000000109017b20, mu=0x0000000109017ad0, abs_deadline=(tv_sec = 9223372036854775807, tv_nsec = 0, clock_type = GPR_CLOCK_MONOTONIC)) at sync_posix.cc:217:11
    frame #3: 0x0000000106f991a4 grpc`grpc_core::Executor::ThreadMain(arg=0x0000000109017ad0) at executor.cc:245:7
    frame #4: 0x000000010706c2dc grpc`grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(this=0x000000028103b4e0, v=2 elements)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::operator()(void*) const at thd_posix.cc:114:27
    frame #5: 0x000000010706c200 grpc`grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(v=2 elements)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::__invoke(void*) at thd_posix.cc:84:25
    frame #6: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #7: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #8: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #19
    frame #0: 0x0000000182e99ee4 libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x0000000182f194a4 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 628
    frame #2: 0x0000000107060bd4 grpc`::gpr_cv_wait(cv=0x0000000109017c90, mu=0x0000000109017c40, abs_deadline=(tv_sec = 9223372036854775807, tv_nsec = 0, clock_type = GPR_CLOCK_MONOTONIC)) at sync_posix.cc:217:11
    frame #3: 0x0000000106f991a4 grpc`grpc_core::Executor::ThreadMain(arg=0x0000000109017c40) at executor.cc:245:7
    frame #4: 0x000000010706c2dc grpc`grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(this=0x000000028103bae0, v=0x000000028103bae0)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::operator()(void*) const at thd_posix.cc:114:27
    frame #5: 0x000000010706c200 grpc`grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(v=0x000000028103bae0)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::__invoke(void*) at thd_posix.cc:84:25
    frame #6: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #7: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #8: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #20
    frame #0: 0x0000000182e99ee4 libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x0000000182f194a4 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 628
    frame #2: 0x0000000107060bd4 grpc`::gpr_cv_wait(cv=0x00000001070ec258, mu=0x00000001070ec218, abs_deadline=(tv_sec = 9223372036854775807, tv_nsec = 0, clock_type = GPR_CLOCK_MONOTONIC)) at sync_posix.cc:217:11
    frame #3: 0x00000001070717cc grpc`wait_until(next=9223372036854775807) at timer_manager.cc:211:5
    frame #4: 0x0000000107071380 grpc`timer_main_loop() at timer_manager.cc:265:14
    frame #5: 0x0000000107071294 grpc`timer_thread(completed_thread_ptr=0x0000000281e2a860) at timer_manager.cc:294:3
    frame #6: 0x000000010706c2dc grpc`grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(this=0x000000028103bae0, v=0x000000028103bae0)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::operator()(void*) const at thd_posix.cc:114:27
    frame #7: 0x000000010706c200 grpc`grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(v=0x000000028103bae0)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::__invoke(void*) at thd_posix.cc:84:25
    frame #8: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #9: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #10: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #21
    frame #0: 0x0000000182e99ee4 libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x0000000182f194a4 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 628
    frame #2: 0x0000000107060c2c grpc`::gpr_cv_wait(cv=0x00000001070ec258, mu=0x00000001070ec218, abs_deadline=(tv_sec = 1560538320, tv_nsec = 245596791, clock_type = GPR_CLOCK_REALTIME)) at sync_posix.cc:233:11
    frame #3: 0x00000001070717cc grpc`wait_until(next=26060) at timer_manager.cc:211:5
    frame #4: 0x0000000107071380 grpc`timer_main_loop() at timer_manager.cc:265:14
    frame #5: 0x0000000107071294 grpc`timer_thread(completed_thread_ptr=0x0000000281f5d780) at timer_manager.cc:294:3
    frame #6: 0x000000010706c2dc grpc`grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(this=0x000000028106c3c0, v=0x000000028106c3c0)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::operator()(void*) const at thd_posix.cc:114:27
    frame #7: 0x000000010706c200 grpc`grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(v=0x000000028106c3c0)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::__invoke(void*) at thd_posix.cc:84:25
    frame #8: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #9: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #10: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #22
    frame #0: 0x0000000182e9ab74 libsystem_kernel.dylib`__workq_kernreturn + 8
    frame #1: 0x0000000182f1d1f8 libsystem_pthread.dylib`_pthread_wqthread + 532
    frame #2: 0x0000000182f1fcd4 libsystem_pthread.dylib`start_wqthread + 4
  thread #23
    frame #0: 0x0000000182e9ab74 libsystem_kernel.dylib`__workq_kernreturn + 8
    frame #1: 0x0000000182f1d138 libsystem_pthread.dylib`_pthread_wqthread + 340
    frame #2: 0x0000000182f1fcd4 libsystem_pthread.dylib`start_wqthread + 4
  thread #24
    frame #0: 0x0000000182f1fcd0 libsystem_pthread.dylib`start_wqthread
  thread #25
    frame #0: 0x0000000182e9ab74 libsystem_kernel.dylib`__workq_kernreturn + 8
    frame #1: 0x0000000182f1d1f8 libsystem_pthread.dylib`_pthread_wqthread + 532
    frame #2: 0x0000000182f1fcd4 libsystem_pthread.dylib`start_wqthread + 4
  thread #26
    frame #0: 0x0000000182f1fcd0 libsystem_pthread.dylib`start_wqthread
  thread #27
    frame #0: 0x0000000182e9ab74 libsystem_kernel.dylib`__workq_kernreturn + 8
    frame #1: 0x0000000182f1d1f8 libsystem_pthread.dylib`_pthread_wqthread + 532
    frame #2: 0x0000000182f1fcd4 libsystem_pthread.dylib`start_wqthread + 4
  thread #28
    frame #0: 0x0000000182e9ab74 libsystem_kernel.dylib`__workq_kernreturn + 8
    frame #1: 0x0000000182f1d1f8 libsystem_pthread.dylib`_pthread_wqthread + 532
    frame #2: 0x0000000182f1fcd4 libsystem_pthread.dylib`start_wqthread + 4
  thread #30, name = 'Dart ThreadPool Worker'
    frame #0: 0x0000000182e99ee4 libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x0000000182f194d8 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 680
    frame #2: 0x000000010567d260 Flutter`dart::Monitor::WaitMicros(long long) + 128
    frame #3: 0x000000010570280c Flutter`dart::ThreadPool::Worker::Loop() + 108
    frame #4: 0x00000001057026a4 Flutter`dart::ThreadPool::Worker::Main(unsigned long) + 176
    frame #5: 0x000000010567c98c Flutter`dart::ThreadStart(void*) + 76
    frame #6: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #7: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #8: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #31, name = 'Dart ThreadPool Worker'
    frame #0: 0x0000000182e99ee4 libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x0000000182f194d8 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 680
    frame #2: 0x000000010567d260 Flutter`dart::Monitor::WaitMicros(long long) + 128
    frame #3: 0x000000010570280c Flutter`dart::ThreadPool::Worker::Loop() + 108
    frame #4: 0x00000001057026a4 Flutter`dart::ThreadPool::Worker::Main(unsigned long) + 176
    frame #5: 0x000000010567c98c Flutter`dart::ThreadStart(void*) + 76
    frame #6: 0x0000000182f1c2c0 libsystem_pthread.dylib`_pthread_body + 128
    frame #7: 0x0000000182f1c220 libsystem_pthread.dylib`_pthread_start + 44
    frame #8: 0x0000000182f1fcdc libsystem_pthread.dylib`thread_start + 4
  thread #32
    frame #0: 0x0000000182e9ab74 libsystem_kernel.dylib`__workq_kernreturn + 8
    frame #1: 0x0000000182f1d1f8 libsystem_pthread.dylib`_pthread_wqthread + 532
    frame #2: 0x0000000182f1fcd4 libsystem_pthread.dylib`start_wqthread + 4
  thread #33
    frame #0: 0x0000000182e9ab74 libsystem_kernel.dylib`__workq_kernreturn + 8
    frame #1: 0x0000000182f1d138 libsystem_pthread.dylib`_pthread_wqthread + 340
    frame #2: 0x0000000182f1fcd4 libsystem_pthread.dylib`start_wqthread + 4


[✓] Flutter (Channel dev, v1.7.3, on Mac OS X 10.14.5 18F132, locale en-GB)
    • Flutter version 1.7.3 at /Users/dominicjarmann/Documents/developement/flutter
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    c: crashStack traces logged to the consolecustomer: crowdAffects or could affect many people, though not necessarily a specific customer.engineflutter/engine related. See also e: labels.platform-iosiOS applications specificallywaiting for responseThe Flutter team cannot make further progress on this issue until the original reporter responds

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