(gdb) bt full
#0  0xb7f19410 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb75f4aa5 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
No symbol table info available.
#2  0xb7616df2 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#3  0x0851d2c0 in ?? ()
No symbol table info available.
#4  0x0851c1a8 in ?? ()
No symbol table info available.
#5  0xb6fc92d8 in ?? ()
No symbol table info available.
#6  0xb76170ff in g_async_queue_pop_unlocked () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#7  0xb7665666 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#8  0x0851d200 in ?? ()
No symbol table info available.
#9  0x00000000 in ?? ()
No symbol table info available.
(gdb) 
#0  0xb7f19410 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb75f4aa5 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
No symbol table info available.
#2  0xb7616df2 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#3  0x0851d2c0 in ?? ()
No symbol table info available.
#4  0x0851c1a8 in ?? ()
No symbol table info available.
#5  0xb6fc92d8 in ?? ()
No symbol table info available.
#6  0xb76170ff in g_async_queue_pop_unlocked () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#7  0xb7665666 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#8  0x0851d200 in ?? ()
No symbol table info available.
#9  0x00000000 in ?? ()
No symbol table info available.
(gdb) 
#0  0xb7f19410 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb75f4aa5 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
No symbol table info available.
#2  0xb7616df2 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#3  0x0851d2c0 in ?? ()
No symbol table info available.
#4  0x0851c1a8 in ?? ()
No symbol table info available.
#5  0xb6fc92d8 in ?? ()
No symbol table info available.
#6  0xb76170ff in g_async_queue_pop_unlocked () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#7  0xb7665666 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#8  0x0851d200 in ?? ()
No symbol table info available.
#9  0x00000000 in ?? ()
No symbol table info available.