[Webkit-unassigned] [Bug 179883] New: [WPE] WPEWebProcess: Couldn't find current GLX or EGL context

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=179883

            Bug ID: 179883
           Summary: [WPE] WPEWebProcess: Couldn't find current GLX or EGL
                    context
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit WPE
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cgarcia at igalia.com
                CC: bugs-noreply at webkitgtk.org

I'm seeing that message quite often when running the unit tests. The problem seems to be that some tests run so fast that the web process never renders the first frame, so the context is created but never made current. I've checked with apitrace that there are calls to eglQueryContext with null display, causing a EGL_BAD_DISPLAY, but I don't know where those calls are originated, see:

12 eglChooseConfig(dpy = 0x55afaa1eaba0, attrib_list = {EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, EGL_RED_SIZE, 8, EGL_GREEN_SIZE, 8, EGL_BLUE_SIZE, 8, EGL_STENCIL_SIZE, 8, EGL_ALPHA_SIZE, 8, EGL_SURFACE_TYPE, EGL_WINDOW_BIT, EGL_NONE}, configs = &0x55afaa1eba50, config_size = 1, num_config = &1) = EGL_TRUE
13 eglCreateContext(dpy = 0x55afaa1eaba0, config = 0x55afaa1eba50, share_context = 0x7f8c24003290, attrib_list = {EGL_CONTEXT_MAJOR_VERSION, 2, EGL_NONE}) = 0x7f8c240391c0
14 eglCreateWindowSurface(dpy = 0x55afaa1eaba0, config = 0x55afaa1eba50, win = 0x7f8c24039130, attrib_list = {}) = 0x7f8c240476a0
15 eglGetCurrentDisplay() = NULL
16 eglGetCurrentContext() = NULL
17 eglGetCurrentDisplay() = NULL
18 eglQueryContext(dpy = NULL, ctx = NULL, attribute = EGL_CONTEXT_CLIENT_TYPE, value = &0) = EGL_FALSE
19 eglGetError() = EGL_BAD_DISPLAY

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