With recent mesa (+kernel, xf86-ati) from git xbmc started crashing with the following error:

state_tracker/st_atom_array.c:417:setup_interleaved_attribs: Assertion `array->_ElementSize == _mesa_bytes_per_vertex_attrib(array->Size, array->Type)' failed.
Trace/breakpoint trap (core dumped)

dmesg shows:

[472553.996080] traps: xbmc.bin[17682] trap int3 ip:7f8bb4847586 sp:7fff827674d0 error:0

It either crashes on startup or when clicking on any menu item for the first time or when scrrolling the menu (without having clicked on anything).
I recompiled  xbmca few times, it still does the same. Note that it was working until i did a mesa update from git a few weeks back.
The guys over the xbmc forums say that its a mesa issue.

glxinfo | grep -i open output:

OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD ARUBA
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.3.0-devel (git-150ac07)
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 10.3.0-devel (git-150ac07)
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 10.3.0-devel (git-150ac07)
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.0
OpenGL ES profile extensions:

I use Debian Testing 64-bit, mesa, drm, kernel, xserver built from git on an A8-6500. I also use glamor as acceleration method.