#0  0xb7c956be in XF86DrmAdaptor::XF86DrmAdaptor ()
   from /usr/lib/xorg/libGL.so.1
#1  0xb7c927fe in drmwayOpen () from /usr/lib/xorg/libGL.so.1
#2  0xb7c916b3 in lnxioOpen () from /usr/lib/xorg/libGL.so.1
#3  0xb7b7c9bc in ioOpen () from /usr/lib/xorg/libGL.so.1
#4  0xb7b45afc in gslOpen () from /usr/lib/xorg/libGL.so.1
#5  0xb73ae464 in gldvOpen () from /usr/lib/xorg/libGL.so.1
#6  0xb77e37b2 in wsiDisplay::wsiDisplay () from /usr/lib/xorg/libGL.so.1
#7  0xb780fe89 in wsiGlobalDatabase::getDisplay ()
   from /usr/lib/xorg/libGL.so.1
#8  0xb77f1e9b in wsiGetDisplay () from /usr/lib/xorg/libGL.so.1
#9  0xb7c9a5d5 in GlxDisplayInfo::GlxDisplayInfo ()
   from /usr/lib/xorg/libGL.so.1
#10 0xb7c99f6a in GlxState::addDisplayConnection ()
   from /usr/lib/xorg/libGL.so.1
#11 0xb7c9a0dd in GlxState::getDisplayInfo () from /usr/lib/xorg/libGL.so.1
#12 0xb7c9af7c in glXChooseVisual () from /usr/lib/xorg/libGL.so.1
#13 0x08049448 in ?? ()
#14 0x08067370 in ?? ()
#15 0x00000000 in ?? ()