Chrome Version: r562493 (ToT)
OS: macOS 10.13.4

I've been hitting a NOTREACHED() when I run Chromium in *Cocoa* mode for the last few weeks:


[17562:775:0529/180706.907304:FATAL:location_bar_view_mac.mm(89)] Check failed: false.
0   libbase.dylib                       0x00000001144977fc base::debug::StackTrace::StackTrace(unsigned long) + 28
1   libbase.dylib                       0x00000001143b554f logging::LogMessage::~LogMessage() + 223
2   libchrome_dll.dylib                 0x000000010fcb3fbd (anonymous namespace)::NotReached(gfx::Image const&) + 77
3   libchrome_dll.dylib                 0x000000010f9a5178 FaviconCache::OnFaviconFetched(FaviconCache::Request const&, favicon_base::FaviconImageResult const&) + 376
4   libchrome_dll.dylib                 0x000000010f9a62e7 base::internal::Invoker<base::internal::BindState<void (FaviconCache::*)(FaviconCache::Request const&, favicon_base::FaviconImageResult const&), base::WeakPtr<FaviconCache>, FaviconCache::Request>, void (favicon_base::FaviconImageResult const&)>::Run(base::internal::BindStateBase*, favicon_base::FaviconImageResult const&) + 199
5   libchrome_dll.dylib                 0x000000010f0518b7 favicon::FaviconServiceImpl::RunFaviconImageCallbackWithBitmapResults(base::RepeatingCallback<void (favicon_base::FaviconImageResult const&)> const&, int, std::__1::vector<favicon_base::FaviconRawBitmapResult, std::__1::allocator<favicon_base::FaviconRawBitmapResult> > const&) + 343
6   libchrome_dll.dylib                 0x000000010effe49c history::(anonymous namespace)::RunWithFaviconResults(base::RepeatingCallback<void (std::__1::vector<favicon_base::FaviconRawBitmapResult, std::__1::allocator<favicon_base::FaviconRawBitmapResult> > const&)> const&, std::__1::vector<favicon_base::FaviconRawBitmapResult, std::__1::allocator<favicon_base::FaviconRawBitmapResult> >*) + 140
7   libbase.dylib                       0x0000000114435466 base::(anonymous namespace)::RunIfNotCanceledThenUntrack(base::CancellationFlag const*, base::OnceCallback<void ()>, base::OnceCallback<void ()>) + 134
8   libbase.dylib                       0x00000001144362a6 base::internal::Invoker<base::internal::BindState<void (*)(base::CancellationFlag const*, base::OnceCallback<void ()>, base::OnceCallback<void ()>), base::internal::OwnedWrapper<base::CancellationFlag>, base::OnceCallback<void ()>, base::OnceCallback<void ()> >, void ()>::RunOnce(base::internal::BindStateBase*) + 70
9   libbase.dylib                       0x0000000114454c3f base::(anonymous namespace)::PostTaskAndReplyRelay::RunReply(base::(anonymous namespace)::PostTaskAndReplyRelay) + 255
10  libbase.dylib                       0x0000000114454ce9 base::internal::Invoker<base::internal::BindState<void (*)(base::(anonymous namespace)::PostTaskAndReplyRelay), base::(anonymous namespace)::PostTaskAndReplyRelay>, void ()>::RunOnce(base::internal::BindStateBase*) + 89
11  libbase.dylib                       0x0000000114394c03 base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) + 323
12  libbase.dylib                       0x00000001143ce649 base::internal::IncomingTaskQueue::RunTask(base::PendingTask*) + 121
13  libbase.dylib                       0x00000001143d2597 base::MessageLoop::RunTask(base::PendingTask*) + 599
14  libbase.dylib                       0x00000001143d295a base::MessageLoop::DeferOrRunPendingTask(base::PendingTask) + 186
15  libbase.dylib                       0x00000001143d2bcc base::MessageLoop::DoWork() + 572
16  libbase.dylib                       0x00000001143d6e2a base::MessagePumpCFRunLoopBase::RunWork() + 42
17  libbase.dylib                       0x00000001143b7d8a base::mac::CallWithEHFrame(void () block_pointer) + 10
18  libbase.dylib                       0x00000001143d670f base::MessagePumpCFRunLoopBase::RunWorkSource(void*) + 63
19  CoreFoundation                      0x00007fff2fad6a61 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
20  CoreFoundation                      0x00007fff2fb9047c __CFRunLoopDoSource0 + 108
21  CoreFoundation                      0x00007fff2fab94c0 __CFRunLoopDoSources0 + 208
22  CoreFoundation                      0x00007fff2fab893d __CFRunLoopRun + 1293
23  CoreFoundation                      0x00007fff2fab81a3 CFRunLoopRunSpecific + 483
24  HIToolbox                           0x00007fff2eda0d96 RunCurrentEventLoopInMode + 286
25  HIToolbox                           0x00007fff2eda0b06 ReceiveNextEventCommon + 613
26  HIToolbox                           0x00007fff2eda0884 _BlockUntilNextEventMatchingListInModeWithFilter + 64
27  AppKit                              0x00007fff2d053a73 _DPSNextEvent + 2085
28  AppKit                              0x00007fff2d7e9e34 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 3044
29  libchrome_dll.dylib                 0x000000010e6db7a0 __71-[BrowserCrApplication nextEventMatchingMask:untilDate:inMode:dequeue:]_block_invoke + 64
30  libbase.dylib                       0x00000001143b7d8a base::mac::CallWithEHFrame(void () block_pointer) + 10
31  libchrome_dll.dylib                 0x000000010e6db6d4 -[BrowserCrApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 164
32  AppKit                              0x00007fff2d048885 -[NSApplication run] + 764
33  libbase.dylib                       0x00000001143d7f0c base::MessagePumpNSApplication::DoRun(base::MessagePump::Delegate*) + 364
34  libbase.dylib                       0x00000001143d615e base::MessagePumpCFRunLoopBase::Run(base::MessagePump::Delegate*) + 110
35  libbase.dylib                       0x00000001143d1f74 base::MessageLoop::Run(bool) + 132
36  libbase.dylib                       0x0000000114410589 base::RunLoop::Run() + 249
37  libchrome_dll.dylib                 0x000000010e6e2a5b ChromeBrowserMainParts::MainMessageLoopRun(int*) + 267
38  libcontent.dylib                    0x00000001181a0c34 content::BrowserMainLoop::RunMainMessageLoopParts() + 52
39  libcontent.dylib                    0x00000001181a3be6 content::BrowserMainRunnerImpl::Run() + 102
40  libcontent.dylib                    0x000000011819d104 content::BrowserMain(content::MainFunctionParams const&, std::__1::unique_ptr<content::BrowserProcessSubThread, std::__1::default_delete<content::BrowserProcessSubThread> >) + 276
41  libcontent.dylib                    0x0000000118db8113 content::RunBrowserProcessMain(content::MainFunctionParams const&, content::ContentMainDelegate*, std::__1::unique_ptr<content::BrowserProcessSubThread, std::__1::default_delete<content::BrowserProcessSubThread> >) + 195
42  libcontent.dylib                    0x0000000118db908e content::ContentMainRunnerImpl::Run() + 686
43  libembedder.dylib                   0x0000000114333e67 service_manager::Main(service_manager::MainParams const&) + 2855
44  libcontent.dylib                    0x0000000118db8024 content::ContentMain(content::ContentMainParams const&) + 68
45  libchrome_dll.dylib                 0x000000010e028423 ChromeMain + 179
46  Chromium                            0x000000010dff6de5 main + 405
47  libdyld.dylib                       0x00007fff57dd2015 start + 1
48  ???                                 0x0000000000000001 0x0 + 1

[0529/180708.937340:WARNING:crash_report_exception_handler.cc(239)] UniversalExceptionRaise: (ipc/mig) server died (0xfffffecc)
Trace/BPT trap: 5