(gdb) bt full
#0  0xffffe410 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb7b8afc0 in raise () from /lib/i686/libc.so.6
No symbol table info available.
#2  0xb7b8c851 in abort () from /lib/i686/libc.so.6
No symbol table info available.
#3  0xb7bc040b in __fsetlocking () from /lib/i686/libc.so.6
No symbol table info available.
#4  0xb7bc7d9d in mallopt () from /lib/i686/libc.so.6
No symbol table info available.
#5  0xb7bc7f23 in free () from /lib/i686/libc.so.6
No symbol table info available.
#6  0xb6b540d0 in device_state_thread (data=0x0) at app_queue.c:655
        sc = (struct statechange *) 0x8259560
#7  0x080fe3d5 in dummy_start (data=0x825b148) at utils.c:545
        __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {-1210052620, 0, -1229648992, -1229650984, -204922732, 1299431489},
      __mask_was_saved = 0}}, __pad = {0xb6b50490, 0x0, 0x0, 0x0}}
        __cancel_routine = (void (*)(void *)) 0x806bbb7 <ast_unregister_thread>
        __cancel_arg = (void *) 0xb6b50ba0
        not_first_call = 0
        ret = (void *) 0x0
        a = {start_routine = 0xb6b54013 <device_state_thread>, data = 0x0,
  name = 0x82713f8 "device_state_thread  started at [ 4773] app_queue.c load_module()"}
#8  0xb7df6562 in start_thread () from /lib/i686/libpthread.so.0
No symbol table info available.
#9  0xb7c2d4be in clone () from /lib/i686/libc.so.6
No symbol table info available.
(gdb)