EGL context creation fails when EGL_KHR_create_context_no_error is mentioned for OpenGL ES 1.1.

System information

• OS: NAME="Arch Linux"
• GPU: 0b:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 [Radeon RX 5600 OEM/5600 XT / 5700/5700 XT] [1002:731f] (rev c1)
• Kernel version: 5.11.10-arch1-1
• Mesa version: OpenGL version string: 4.6 (Compatibility Profile) Mesa 21.0.1
• Xserver version (if applicable): X.Org X Server 1.20.10
• Desktop manager and compositor: GNOME Shell (Wayland)

Describe the issue

eglCreateContext fails with EGL_BAD_ATTRIBUTE when EGL_CONTEXT_OPENGL_NO_ERROR_KHR is part of the attrib list when creating a context with version 1.1.

The EGL_KHR_create_context_no_error extension is reported as available through eglQueryString.

The context creation even fails when EGL_CONTEXT_OPENGL_NO_ERROR_KHR is set to EGL_FALSE.

The context creation succeeds when the OpenGL ES client version is set to a version above 1.1, e.g. 2.0 or 3.2 via the EGL_CONTEXT_MAJOR_VERSION_KHR and EGL_CONTEXT_MINOR_VERSION_KHR attributes.

This is due to the context creation intentionally failing for API versions below 2: https://gitlab.freedesktop.org/mesa/mesa/-/blob/master/src/egl/main/eglcontext.c#L334

Reading the specification though I was not able to find a GLES version restriction: https://github.com/KhronosGroup/EGL-Registry/blob/master/extensions/KHR/EGL_KHR_create_context_no_error.txt

This is related to an issue found in ANGLE, which fails to create GLES 1.0 EGL contexts on mesa. https://bugs.chromium.org/p/angleproject/issues/detail?id=5809

Log

libEGL debug: bad context attribute 0x31b3
libEGL debug: EGL user error 0x3004 (EGL_BAD_ATTRIBUTE) in eglCreateContext

Minimal Example

A minimal example reproducing this issue can be found here: https://gitlab.freedesktop.org/lubosz/egl-no-error-example/-/blob/master/egl_no_error.c