We're having a bunch of flaky crashes in the lab.

https://wmatrix.googleplex.com/platform/unfiltered?hide_missing=True&tests=desktopui_MusLogin&days_back=14&releases=tot&platforms=cyan

https://wmatrix.googleplex.com/testrun/unfiltered?test_ids=486482714

Crash reason:  SIGSEGV
Crash address: 0x0
Process uptime: not available

Thread 0 (crashed)
 0  chrome!ui::MusThreadProxy::GpuRefreshNativeDisplays() + 0xe1
 1  chrome!ui::DrmDisplayHostManager::UpdateDisplays(base::Callback<void (std::vector<display::DisplaySnapshot*, std::allocator<display::DisplaySnapshot*> > const&), (base::internal::CopyMode)1, (base::internal::RepeatMode)1> const&) + 0x26
 2  chrome!display::ScreenManagerForwarding::Initialize(mojo::InterfacePtr<display::mojom::NativeDisplayObserver>, base::Callback<void (std::vector<std::unique_ptr<display::DisplaySnapshotMojo, std::default_delete<display::DisplaySnapshotMojo> >, std::allocator<std::unique_ptr<display::DisplaySnapshotMojo, std::default_delete<display::DisplaySnapshotMojo> > > >), (base::internal::CopyMode)1, (base::internal::RepeatMode)1> const&) + 0x150
 3  chrome!display::mojom::NativeDisplayDelegateStubDispatch::AcceptWithResponder(display::mojom::NativeDisplayDelegate*, mojo::Message*, std::unique_ptr<mojo::MessageReceiverWithStatus, std::default_delete<mojo::MessageReceiverWithStatus> >) + 0x29e
 4  chrome!display::mojom::NativeDisplayDelegateStub<mojo::RawPtrImplRefTraits<display::mojom::NativeDisplayDelegate> >::AcceptWithResponder(mojo::Message*, std::unique_ptr<mojo::MessageReceiverWithStatus, std::default_delete<mojo::MessageReceiverWithStatus> >) + 0x36
 5  chrome!mojo::InterfaceEndpointClient::HandleValidatedMessage(mojo::Message*) + 0x1cd
 6  chrome!mojo::internal::MultiplexRouter::ProcessIncomingMessage(mojo::Message*, mojo::internal::MultiplexRouter::ClientCallBehavior, base::SingleThreadTaskRunner*) + 0x174
 7  chrome!mojo::internal::MultiplexRouter::Accept(mojo::Message*) + 0xa6
 8  chrome!mojo::Connector::ReadSingleMessage(unsigned int*) + 0x162
 9  chrome!mojo::Connector::ReadAllAvailableMessages() + 0x61
10  chrome!mojo::SimpleWatcher::OnHandleReady(int, unsigned int) + 0x121
11  chrome!base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) + 0x101
12  chrome!base::MessageLoop::RunTask(base::PendingTask*) + 0x176
13  chrome!base::MessageLoop::DoWork() + 0x3e9
14  chrome!base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) + 0x190
15  chrome!base::RunLoop::Run() + 0x40
16  chrome!base::internal::Invoker<base::internal::BindState<service_manager::(anonymous namespace)::RunService(service_manager::MainDelegate*)::$_0, service_manager::MainDelegate*, int*>, void (mojo::InterfaceRequest<service_manager::mojom::Service>)>::Run(base::internal::BindStateBase*, mojo::InterfaceRequest<service_manager::mojom::Service>&&) + 0x1b1
17  chrome!service_manager::RunStandaloneService(base::Callback<void (mojo::InterfaceRequest<service_manager::mojom::Service>), (base::internal::CopyMode)1, (base::internal::RepeatMode)1> const&) + 0x2d7
18  chrome!service_manager::Main(service_manager::MainParams const&) + 0x988
19  chrome!content::ContentMain(content::ContentMainParams const&) + 0x51
20  chrome!ChromeMain + 0x96

Looks similar to  issue 659804 . Full minidump output attached.

 

Deleted: stack1.txt 34.4 KB

stack1.txt 34.4 KB View Download