Using host libthread_db library "/lib/libthread_db.so.1".
0xb7f00410 in __kernel_vsyscall ()
#0  0xb7f00410 in __kernel_vsyscall ()
#1  0xb6602ffb in read () from /lib/libpthread.so.0
#2  0xb64f754d in ?? () from /usr/lib/libxcb.so.1
#3  0x00000004 in ?? ()
#4  0x081a48ac in ?? ()
#5  0x00001000 in ?? ()
#6  0xb6505ff4 in ?? () from /usr/lib/libxcb.so.1
#7  0x081a48ac in ?? ()
#8  0x00000000 in ?? ()