And if use X image instead of egl image for compositing test (use --no-accel-tfp option), segmentation fault happens for glcompbench when call glTexSubImage2D in CompositeWindowXImage::update_texture_from_pixmap.
And if use X image instead of egl image for compositing test (use --no-accel-tfp option), segmentation fault happens for glcompbench when call glTexSubImage2D in CompositeWindow XImage: :update_ texture_ from_pixmap.