[109467:109467:0302/142753:FATAL:pref_change_registrar.cc(37)] Check failed: !IsObserved(path). Already had this pref registered.
#0 0x7f54891109ce base::debug::StackTrace::StackTrace()
#1 0x7f548912c8da logging::LogMessage::~LogMessage()
#2 0x7f54850fa162 PrefChangeRegistrar::Add()
#3 0x7f54850fa0b3 PrefChangeRegistrar::Add()
#4 0x7f548a48d0d6 settings::StartupPagesHandler::OnStartupPrefsPageLoad()
#5 0x7f54871d1b1e content::WebUIImpl::ProcessWebUIMessage()
#6 0x7f54871d0c5a content::WebUIImpl::OnMessageReceived()
#7 0x7f54871ada05 content::WebContentsImpl::OnMessageReceived()
#8 0x7f54870cc09c content::RenderViewHostImpl::OnMessageReceived()
#9 0x7f54870d0ef3 content::RenderWidgetHostImpl::OnMessageReceived()
#10 0x7f54870c2a71 content::RenderProcessHostImpl::OnMessageReceived()
#11 0x7f5485e9c327 IPC::ChannelProxy::Context::OnDispatchMessage()
#12 0x7f5489111846 base::debug::TaskAnnotator::RunTask()
#13 0x7f548913589b base::MessageLoop::RunTask()
#14 0x7f5489135b98 base::MessageLoop::DeferOrRunPendingTask()
#15 0x7f5489135e0b base::MessageLoop::DoWork()
#16 0x7f54890ff2aa base::(anonymous namespace)::WorkSourceDispatch()
#17 0x7f5480ef7e04 g_main_context_dispatch
#18 0x7f5480ef8048 <unknown>
#19 0x7f5480ef80ec g_main_context_iteration
#20 0x7f54890ff066 base::MessagePumpGlib::Run()
#21 0x7f5489135454 base::MessageLoop::RunHandler()
#22 0x7f54891570fd base::RunLoop::Run()
#23 0x7f548b3d9a85 ChromeBrowserMainParts::MainMessageLoopRun()
#24 0x7f5486e594f2 content::BrowserMainLoop::RunMainMessageLoopParts()
#25 0x7f5486e5cbd3 content::BrowserMainRunnerImpl::Run()
#26 0x7f5486e545e3 content::BrowserMain()
#27 0x7f5486dc07c9 content::ContentMainRunnerImpl::Run()
#28 0x7f5486dbf3e1 content::ContentMain()
#29 0x7f5489ce7baa ChromeMain
#30 0x7f54803d1ec5 __libc_start_main
#31 0x7f5489ce7a5f <unknown>