(gdb) bt
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7b8afc0 in raise () from /lib/i686/libc.so.6
#2  0xb7b8c851 in abort () from /lib/i686/libc.so.6
#3  0xb7bc040b in __fsetlocking () from /lib/i686/libc.so.6
#4  0xb7bc7d9d in mallopt () from /lib/i686/libc.so.6
#5  0xb7bc7f23 in free () from /lib/i686/libc.so.6
#6  0xb6b540d0 in device_state_thread (data=0x0) at app_queue.c:655
#7  0x080fe3d5 in dummy_start (data=0x825b148) at utils.c:545
#8  0xb7df6562 in start_thread () from /lib/i686/libpthread.so.0
#9  0xb7c2d4be in clone () from /lib/i686/libc.so.6
(gdb)