QtWebEngine code crashing on AM437x-EVM

Here is the debug log

qt.qpa.egldeviceintegration: EGL device integration plugin keys: ("eglfs_kms_egldevice", "eglfs_kms")
qt.qpa.egldeviceintegration: EGL device integration plugin keys (sorted): ("eglfs_kms", "eglfs_kms_egldevice")
qt.qpa.egldeviceintegration: Trying to load device EGL integration "eglfs_kms"
qt.qpa.egldeviceintegration: Using EGL device integration "eglfs_kms"
qt.qpa.eglfs.kms: Loading KMS setup from "/etc/qt5/eglfs_kms_cfg.json"
qt.qpa.eglfs.kms: Configuration:
hwcursor: false
pbuffers: true
separateScreens: false
outputs: QMap()
qt.qpa.eglfs.kms: Using DRM device "/dev/dri/card0" specified in config file
qt.qpa.eglfs.kms: Opening device "/dev/dri/card0"
qt.qpa.eglfs.kms: Creating GBM device for file descriptor 4 obtained from "/dev/dri/card0"
qt.qpa.eglfs.kms: "UNKNOWN1" mode count: 1
qt.qpa.eglfs.kms: mode 0 800 x 480 @ 60 hz
qt.qpa.eglfs.kms: Selected mode 0 : 800 x 480 @ 60 hz for output "UNKNOWN1"
qt.qpa.input: evdevkeyboard: Using device discovery
qt.qpa.input: udev device discovery for type QFlags(0x8)
qt.qpa.input: Found matching devices ("/dev/input/event1")
qt.qpa.input: Adding keyboard at "/dev/input/event1"
qt.qpa.input: Try to create keyboard handler for "/dev/input/event1" ""
qt.qpa.input: Opening keyboard at "/dev/input/event1"
qt.qpa.input: Create keyboard handler with for device "/dev/input/event1"
qt.qpa.input: Unload current keymap and restore built-in
qt.qpa.input: numlock=0 , capslock=0, scrolllock=0
qt.qpa.input: evdevmouse: Using device discovery
qt.qpa.input: udev device discovery for type QFlags(0x1|0x2)
qt.qpa.input: Found matching devices ()
qt.qpa.input: evdevtouch: Using device discovery
qt.qpa.input: udev device discovery for type QFlags(0x2|0x4)
qt.qpa.input: Found matching devices ("/dev/input/event0")
qt.qpa.input: evdevtouch: Adding device at "/dev/input/event0"
qt.qpa.input: evdevtouch: Using device /dev/input/event0
Created context for format QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize -1, redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize -1, stencilBufferSize -1, samples -1, swapBehavior 2, swapInterval 1, profile 0) with config:
qt.qpa.input: evdevtouch: /dev/input/event0: Protocol type B (multi)
qt.qpa.input: evdevtouch: /dev/input/event0: min X: 0 max X: 1023
qt.qpa.input: evdevtouch: /dev/input/event0: min Y: 0 max Y: 599
qt.qpa.input: evdevtouch: /dev/input/event0: min pressure: 0 max pressure: 0
qt.qpa.input: evdevtouch: /dev/input/event0: device name: pixcir_tangoc
EGL_BUFFER_SIZE: 24
EGL_ALPHA_SIZE: 0
EGL_BLUE_SIZE: 8
EGL_GREEN_SIZE: 8
EGL_RED_SIZE: 8
EGL_DEPTH_SIZE: 0
EGL_STENCIL_SIZE: 0
EGL_CONFIG_CAVEAT: 12344
EGL_CONFIG_ID: 5
EGL_LEVEL: 0
EGL_MAX_PBUFFER_HEIGHT: 0
EGL_MAX_PBUFFER_PIXELS: 0
EGL_MAX_PBUFFER_WIDTH: 0
EGL_NATIVE_RENDERABLE: 1
EGL_NATIVE_VISUAL_ID: 875713112
EGL_NATIVE_VISUAL_TYPE: 12344
EGL_SAMPLES: 0
EGL_SAMPLE_BUFFERS: 0
EGL_SURFACE_TYPE: 4
EGL_TRANSPARENT_TYPE: 12344
EGL_TRANSPARENT_BLUE_VALUE: 0
EGL_TRANSPARENT_GREEN_VALUE: 0
EGL_TRANSPARENT_RED_VALUE: 0
EGL_BIND_TO_TEXTURE_RGB: 0
EGL_BIND_TO_TEXTURE_RGBA: 0
EGL_MIN_SWAP_INTERVAL: 1
EGL_MAX_SWAP_INTERVAL: 1
Warning: Setting a new default format with a different version or profile after the global shared context is created may cause issues with context sharing.
qt.scenegraph.general: threaded render loop
qt.scenegraph.general: Using sg animation driver
qt.scenegraph.general: Animation Driver: using vsync: 16.67 ms
qt.qpa.eglfs.kms: Creating window for screen "UNKNOWN1"
Created context for format QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 24, redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize -1, stencilBufferSize 8, samples -1, swapBehavior 2, swapInterval 1, profile 1) with config:
EGL_BUFFER_SIZE: 24
EGL_ALPHA_SIZE: 0
EGL_BLUE_SIZE: 8
EGL_GREEN_SIZE: 8
EGL_RED_SIZE: 8
EGL_DEPTH_SIZE: 24
EGL_STENCIL_SIZE: 8
EGL_CONFIG_CAVEAT: 12344
EGL_CONFIG_ID: 7
EGL_LEVEL: 0
EGL_MAX_PBUFFER_HEIGHT: 0
EGL_MAX_PBUFFER_PIXELS: 0
EGL_MAX_PBUFFER_WIDTH: 0
EGL_NATIVE_RENDERABLE: 1
EGL_NATIVE_VISUAL_ID: 875713112
EGL_NATIVE_VISUAL_TYPE: 12344
EGL_SAMPLES: 0
EGL_SAMPLE_BUFFERS: 0
EGL_SURFACE_TYPE: 4
EGL_TRANSPARENT_TYPE: 12344
EGL_TRANSPARENT_BLUE_VALUE: 0
EGL_TRANSPARENT_GREEN_VALUE: 0
EGL_TRANSPARENT_RED_VALUE: 0
EGL_BIND_TO_TEXTURE_RGB: 0
EGL_BIND_TO_TEXTURE_RGBA: 0
EGL_MIN_SWAP_INTERVAL: 1
EGL_MAX_SWAP_INTERVAL: 1
qt.scenegraph.general: Animation Driver: using vsync: 16.67 ms
qt.scenegraph.general: texture atlas dimensions: 1024x512
qt.scenegraph.general: R/G/B/A Buffers: 8 8 8 0
qt.scenegraph.general: Depth Buffer: 24
qt.scenegraph.general: Stencil Buffer: 8
qt.scenegraph.general: Samples: 0
qt.scenegraph.general: GL_VENDOR: Imagination Technologies
qt.scenegraph.general: GL_RENDERER: PowerVR SGX 530
qt.scenegraph.general: GL_VERSION: OpenGL ES 2.0 build 1.17@4948957
qt.scenegraph.general: GL_EXTENSIONS: GL_OES_fbo_render_mipmap GL_OES_vertex_array_object GL_IMG_texture_compression_pvrtc GL_OES_egl_sync GL_OES_texture_half_float GL_EXT_shader_texture_lod GL_OES_mapbuffer GL_OES_EGL_image_external GL_EXT_discard_framebuffer GL_OES_surfaceless_context GL_OES_EGL_image GL_IMG_texture_format_BGRA8888 GL_IMG_texture_npot GL_OES_compressed_ETC1_RGB8_texture GL_OES_rgb8_rgba8 GL_OES_depth24 GL_OES_fragment_precision_high GL_OES_get_program_binary GL_OES_standard_derivatives GL_IMG_shader_binary GL_IMG_read_format GL_EXT_texture_format_BGRA8888 GL_EXT_texture_storage GL_IMG_program_binary GL_IMG_uniform_buffer_object GL_OES_element_index_uint GL_OES_packed_depth_stencil GL_EXT_blend_minmax GL_OES_texture_float GL_OES_vertex_half_float GL_EXT_multi_draw_arrays GL_EXT_multisampled_render_to_texture GL_OES_depth_texture GL_OES_required_internalformat GL_IMG_multisampled_render_to_texture GL_EXT_texture_rg GL_KHR_debug
qt.scenegraph.general: Max Texture Size: 2048
qt.scenegraph.general: Debug context: false
qt.qpa.input: evdevtouch: Updating QInputDeviceManager device count: 1 touch devices, 0 pending handler(s)
[0420/004526:ERROR:gl_surface_qt.cpp(477)] eglCreatePbufferSurface failed with error EGL_BAD_MATCH
[0420/004526:ERROR:gl_surface_qt.cpp(622)] Requested OpenGL platform is not supported.

I see value of PBUFFER parameters is zero. Probably that is the reason for EGL_BAD_MATCH. I am not able to change that value..  

Hello,

I am wondering if you could please try the same test on PSDK6.3.

Ref. Link: https://www.ti.com/tool/download/PROCESSOR-SDK-LINUX-AM437X#release-notes

Regards,
Krunal

I downloaded TI SDK and rootfs.. Ran sample codes provided by TI rootfs.. Re-compiled my qtwebengine application and ran it on target.. It is working..  

One difference is TI is using wayland and we are not.. I will build wayland and integrate it with my rootfs and try it.. 

Hello,

I am wondering if you could please disable weston using the command "/etc/init.d/weston stop". Next, launch Qt app with the "-platform eglfs". Please give it a try before rebuilding the rootfs.

Regards,
Krunal

We do not have weston in our image. And we are launching Qt app with -platform eglfs.. 

Hello,

On PSDK6.3, there is a bug that causes CPU usage to increase while launching a Qt application. I would recommend you to remove the following patch from Yocto "0001-eglfs_kms-enhance-the-QPA-for-multiple-display-and-u.patch" and rebuild the Qt package.

Regards,
Krunal

I did not see  "0001-eglfs_kms-enhance-the-QPA-for-multiple-display-and-u.patch" patch applied for Qt 5.6.3. Also are you using Qt Quick 2D renderer and scenegraph plugin? I rebuild my image with scenegraph plugin and I am able to render HTML application. As per my understanding it skips opengl. 

I did not see  "0001-eglfs_kms-enhance-the-QPA-for-multiple-display-and-u.patch" patch applied for Qt 5.6.3. Also are you using Qt Quick 2D renderer and scenegraph plugin? I rebuild my image with scenegraph plugin and I am able to render HTML application. As per my understanding it skips opengl. 

Hello,

The above patch is present on Qt5.11 and I would recommend you to check with Qt if QtQuick/Scenegraph utilizes the opengles.

Regards,
Krunal