Chrome Version: ToT (2eae97c1a10980b1c88dc62829cf754174e597a1) r545771

Backtrace:

#9 0x7f3df1334898 ui::InputHandlerProxy::HandleGestureScrollEnd()
#10 0x7f3df133276d ui::InputHandlerProxy::HandleInputEvent()
#11 0x7f3df133189d ui::InputHandlerProxy::DispatchSingleInputEvent()
#12 0x7f3df1330e26 ui::InputHandlerProxy::HandleInputEventWithLatencyInfo()
#13 0x7f3df2f50739 content::WidgetInputHandlerManager::DispatchEvent()
#14 0x7f3df2f4a692 content::WidgetInputHandlerImpl::DispatchEvent()
#15 0x7f3df2f4a944 content::WidgetInputHandlerImpl::DispatchNonBlockingEvent()
#16 0x7f3df0b47ff5 content::mojom::WidgetInputHandlerStubDispatch::Accept()
#17 0x7f3df2f4b653 content::mojom::WidgetInputHandlerStub<>::Accept()
#18 0x7f3df515bb55 mojo::InterfaceEndpointClient::HandleValidatedMessage()
#19 0x7f3df515a5a1 mojo::InterfaceEndpointClient::HandleIncomingMessageThunk::Accept()
#20 0x7f3df5158a52 mojo::FilterChain::Accept()
#21 0x7f3df515e785 mojo::InterfaceEndpointClient::HandleIncomingMessage()
#22 0x7f3df516ac7b mojo::internal::MultiplexRouter::ProcessIncomingMessage()
#23 0x7f3df516a1c5 mojo::internal::MultiplexRouter::Accept()
#24 0x7f3df5158a52 mojo::FilterChain::Accept()
#25 0x7f3df514aa8f mojo::Connector::ReadSingleMessage()
#26 0x7f3df514bada mojo::Connector::ReadAllAvailableMessages()
#27 0x7f3df514b8a5 mojo::Connector::OnHandleReadyInternal()
#28 0x7f3df514b78b mojo::Connector::OnWatcherHandleReady()


This reproduces for me regularly. Start content_shell with --enable-blink-features=MiddleClickAutoscroll (or just use Windows). On any page, middle click to start autoscroll. Click again to end. The crash occurs at the end.

Looks like we're getting multiple GSE when autoscrolling? Sahel, ptal when you're looking at autoscroll code.