.
Thread 1 (process 17544):
#0  0xb7f05bad in _dl_close () from /lib/ld-linux.so.2
#1  0xb7a3acb4 in dlclose_doit () from /lib/tls/i686/cmov/libdl.so.2
#2  0xb7f005d6 in _dl_catch_error () from /lib/ld-linux.so.2
#3  0xb7a3b2bc in _dlerror_run () from /lib/tls/i686/cmov/libdl.so.2
#4  0xb7a3acea in dlclose () from /lib/tls/i686/cmov/libdl.so.2
#5  0xb7e247bd in ?? () from /usr/lib/libGL.so.1
#6  0x00000000 in ?? ()