Crash while zooming into map with default swisstopo vector tile style

[mehlkelm]

I am building an iOS sample app using the swisstopo vector tile example style referenced on the geo.admin.ch API description.

All I am doing in the app is this:

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
        
        let mapView = MGLMapView(frame: view.bounds, styleURL: Bundle.main.url(forResource: "lbm_v1.0.0", withExtension: "json")!)
        mapView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
        view.addSubview(mapView)
    }

The app launches fine, but as soon as I zoom into it the app crashes with EXC_BAD_ACCESS (code=1, address=0x30)

Thread 5 Queue : com.apple.opengl.cvmDoWork (serial)

#0	0x00000001a977d858 in cvmsServerElementBuild ()
#1	0x00000001a9779c88 in cvms_element_build_from_source ()
#2	0x00000001a977067c in cvm_deferred_build_modular(void*) ()
#3	0x000000010576cf34 in _dispatch_client_callout ()
#4	0x0000000105773fbc in _dispatch_lane_serial_drain ()
#5	0x0000000105774c70 in _dispatch_lane_invoke ()
#6	0x0000000105780af4 in _dispatch_workloop_worker_thread ()
#7	0x00000001bd7f8764 in _pthread_wqthread ()
Enqueued from com.apple.main-thread (Thread 1) Queue : com.apple.main-thread (serial)
#0	0x0000000105770c48 in _dispatch_async_f_slow ()
#1	0x00000001a976fe60 in cvmRequestFunctionPointerArrayWrite ()
#2	0x0000000107cd8038 in gldBuildFPTransformFunc ()
#3	0x0000000107cd8b98 in gldSetFPTransformFunc ()
#4	0x0000000107cea584 in gldLLVMVecPolyRender ()
#5	0x0000000107cd562c in gldRenderFillTriangles ()
#6	0x0000000107c8a674 in gleLLVMVecPrimMultiRender ()
#7	0x0000000107be53e4 in gleFlushAtomicFunc ()
#8	0x0000000107c2a334 in glDrawElements_IMM_ES2Exec ()
#9	0x00000001050ad4b8 in mbgl::gl::Context::draw(mbgl::gfx::DrawMode const&, unsigned long, unsigned long) ()
#10	0x00000001050f90f8 in mbgl::gl::Program<mbgl::LineProgram>::draw(mbgl::gfx::Context&, mbgl::gfx::RenderPass&, mbgl::gfx::DrawMode const&, mbgl::gfx::DepthMode const&, mbgl::gfx::StencilMode const&, mbgl::gfx::ColorMode const&, mbgl::gfx::CullFaceMode const&, mbgl::gfx::UniformValues<mbgl::TypeList<mbgl::uniforms::matrix, mbgl::uniforms::ratio, mbgl::uniforms::units_to_pixels, mbgl::uniforms::device_pixel_ratio, mbgl::InterpolationUniform<mbgl::attributes::blur>, mbgl::InterpolationUniform<mbgl::attributes::color>, mbgl::InterpolationUniform<mbgl::attributes::floorwidth>, mbgl::InterpolationUniform<mbgl::attributes::gapwidth>, mbgl::InterpolationUniform<mbgl::attributes::offset>, mbgl::InterpolationUniform<mbgl::attributes::opacity>, mbgl::InterpolationUniform<mbgl::attributes::pattern_to>, mbgl::InterpolationUniform<mbgl::attributes::pattern_from>, mbgl::InterpolationUniform<mbgl::attributes::width>, mbgl::uniforms::blur, mbgl::uniforms::color, mbgl::uniforms::floorwidth, mbgl::uniforms::gapwidth, mbgl::uniforms::offset, mbgl::uniforms::opacity, mbgl::uniforms::pattern_to, mbgl::uniforms::pattern_from, mbgl::uniforms::width> > const&, mbgl::gfx::DrawScope&, mbgl::gfx::AttributeBindings<mbgl::TypeList<mbgl::attributes::pos_normal, mbgl::attributes::data<unsigned char, 4ul>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::blur>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::color>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::floorwidth>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::gapwidth>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::offset>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::opacity>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::pattern_to>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::pattern_from>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::width> > > const&, mbgl::gfx::TextureBindings<mbgl::TypeList<> > const&, mbgl::gfx::IndexBuffer const&, unsigned long, unsigned long) ()
#11	0x0000000105155b70 in void mbgl::Program<mbgl::LineProgram, (mbgl::gfx::PrimitiveType)2, mbgl::TypeList<mbgl::attributes::pos_normal, mbgl::attributes::data<unsigned char, 4ul> >, mbgl::TypeList<mbgl::uniforms::matrix, mbgl::uniforms::ratio, mbgl::uniforms::units_to_pixels, mbgl::uniforms::device_pixel_ratio>, mbgl::TypeList<>, mbgl::style::LinePaintProperties>::draw<mbgl::gfx::Triangles>(mbgl::gfx::Context&, mbgl::gfx::RenderPass&, mbgl::gfx::Triangles const&, mbgl::gfx::DepthMode const&, mbgl::gfx::StencilMode const&, mbgl::gfx::ColorMode const&, mbgl::gfx::CullFaceMode const&, mbgl::gfx::IndexBuffer const&, std::__1::vector<mbgl::Segment<mbgl::TypeList<mbgl::attributes::pos_normal, mbgl::attributes::data<unsigned char, 4ul>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::blur>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::color>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::floorwidth>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::gapwidth>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::offset>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::opacity>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::pattern_to>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::pattern_from>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::width> > >, std::__1::allocator<mbgl::Segment<mbgl::TypeList<mbgl::attributes::pos_normal, mbgl::attributes::data<unsigned char, 4ul>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::blur>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::color>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::floorwidth>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::gapwidth>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::offset>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::opacity>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::pattern_to>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::pattern_from>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::width> > > > > const&, mbgl::gfx::UniformValues<mbgl::TypeList<mbgl::uniforms::matrix, mbgl::uniforms::ratio, mbgl::uniforms::units_to_pixels, mbgl::uniforms::device_pixel_ratio, mbgl::InterpolationUniform<mbgl::attributes::blur>, mbgl::InterpolationUniform<mbgl::attributes::color>, mbgl::InterpolationUniform<mbgl::attributes::floorwidth>, mbgl::InterpolationUniform<mbgl::attributes::gapwidth>, mbgl::InterpolationUniform<mbgl::attributes::offset>, mbgl::InterpolationUniform<mbgl::attributes::opacity>, mbgl::InterpolationUniform<mbgl::attributes::pattern_to>, mbgl::InterpolationUniform<mbgl::attributes::pattern_from>, mbgl::InterpolationUniform<mbgl::attributes::width>, mbgl::uniforms::blur, mbgl::uniforms::color, mbgl::uniforms::floorwidth, mbgl::uniforms::gapwidth, mbgl::uniforms::offset, mbgl::uniforms::opacity, mbgl::uniforms::pattern_to, mbgl::uniforms::pattern_from, mbgl::uniforms::width> > const&, mbgl::gfx::AttributeBindings<mbgl::TypeList<mbgl::attributes::pos_normal, mbgl::attributes::data<unsigned char, 4ul>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::blur>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::color>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::floorwidth>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::gapwidth>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::offset>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::opacity>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::pattern_to>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::pattern_from>, mbgl::ZoomInterpolatedAttribute<mbgl::attributes::width> > > const&, mbgl::gfx::TextureBindings<mbgl::TypeList<> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) ()
#12	0x0000000105152948 in mbgl::RenderLineLayer::render(mbgl::PaintParameters&) ()
#13	0x0000000105180bd0 in mbgl::Renderer::Impl::render(mbgl::RenderTree const&) ()
#14	0x000000010517f354 in mbgl::Renderer::render(std::__1::shared_ptr<mbgl::UpdateParameters> const&) ()
#15	0x00000001053a82b4 in MGLRenderFrontend::render() [inlined] at /Users/runner/work/maplibre-gl-native/maplibre-gl-native/platform/ios/platform/darwin/src/MGLRendererFrontend.h:57
#16	0x00000001053a8268 in -[MGLMapView renderSync] at /Users/runner/work/maplibre-gl-native/maplibre-gl-native/platform/ios/platform/ios/src/MGLMapView.mm:981
#17	0x0000000105360c1c in MGLMapViewImpl::render() [inlined] at /Users/runner/work/maplibre-gl-native/maplibre-gl-native/platform/ios/platform/ios/src/MGLMapView+Impl.mm:14
#18	0x0000000105360c04 in -[MGLMapViewImplDelegate glkView:drawInRect:] at /Users/runner/work/maplibre-gl-native/maplibre-gl-native/platform/ios/platform/ios/src/MGLMapView+OpenGL.mm:26
#19	0x00000001a939dd10 in -[GLKView _display:] ()
#20	0x00000001053a95f4 in -[MGLMapView updateFromDisplayLink:] at /Users/runner/work/maplibre-gl-native/maplibre-gl-native/platform/ios/platform/ios/src/MGLMapView.mm:1211
#21	0x000000018754a404 in CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) ()
#22	0x000000018760dcbc in display_timer_callback(__CFMachPort*, void*, long, void*) ()
#23	0x000000018033134c in __CFMachPortPerform ()
#24	0x0000000180365d04 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ ()
#25	0x0000000180365138 in __CFRunLoopDoSource1 ()
#26	0x000000018035f394 in __CFRunLoopRun ()
#27	0x000000018035e58c in CFRunLoopRunSpecific ()
#28	0x000000018b9c2740 in GSEventRunModal ()
#29	0x00000001843ccbf0 in -[UIApplication _run] ()
#30	0x00000001843d19d0 in UIApplicationMain ()
#31	0x00000001b220f328 in UIApplicationMain(_:_:_:_:) ()
#32	0x0000000104c47e20 in static UIApplicationDelegate.main() ()
#33	0x0000000104c47d98 in static AppDelegate.$main() ()
#34	0x0000000104c47e64 in main ()
#35	0x0000000180223cbc in start ()

[ferologics]

@mehlkelm can you format this stack-trace as code? It incorrectly references other issues in the project with the hashtags #

[mehlkelm]

Done!

[wipfli]

Uff sounds quite bad @mehlkelm Do you know if that problem still exists?

[mehlkelm]

Just retested with MapLibre GL Native 5.12.2 in Xcode 13.4.1 on iOS 14.5 in Simulator.
The crash is still there.

[wipfli]

Is this the same as maplibre/maplibre-native#268?

[mehlkelm]

Is this the same as maplibre/maplibre-gl-native#268?

No, that other one is a problem specifically on iOS 15 Simulator.
(which is why I had to retest this on 14.5…)

[louwers]

Please report this on the main repo if this is still an issue: https://github.com/maplibre/maplibre-native