.
Thread 1 (process 16470):
#0  0xb795e317 in XQueryExtension () from /usr/lib/libX11.so.6
#1  0xb7952c6b in XInitExtension () from /usr/lib/libX11.so.6
#2  0xb792a433 in XextAddDisplay () from /usr/lib/libXext.so.6
#3  0xb7a8bcfd in ?? () from /usr/lib/libXxf86vm.so.1
#4  0xb7a8fa70 in ?? () from /usr/lib/libXxf86vm.so.1
#5  0x00000000 in ?? ()