The test glmark2 is now in most distributions. While it passes in software
mode, it crashes with r300 :

glmark2 -b ideas
=======================================================
    glmark2 2014.03
=======================================================
    OpenGL Information
    GL_VENDOR:     X.Org R300 Project
    GL_RENDERER:   Gallium 0.4 on ATI RV380
    GL_VERSION:    2.1 Mesa 17.0.5
=======================================================
[ideas] speed=duration:Erreur de segmentation (core dumped)

Before stopping, it fills all available memory and swap.

As this is easy to reproduce, I suppose no more information is needed. (I
tested with Mageia Cauldron ( kernel 4.9.27 )