Created attachment 80375 [details]
crash report

firefox / google-chrome or any other GTK2 app crash X11 inmediately since last
checkout of llvm svn


01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cape
Verde XT [Radeon HD 7770 GHz Edition]

OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD CAPE VERDE
OpenGL version string: 2.1 Mesa 9.2.0 (git-ce67fb4)
OpenGL shading language version string: 1.30

attached log of the crash

i got this other bug https://bugzilla.kernel.org/show_bug.cgi?id=58621 not sure
if related