*** glibc detected *** free(): invalid pointer: 0x0837d468 ***

Program received signal SIGABRT, Aborted.
[Switching to Thread -1224488736 (LWP 24744)]
0xffffe410 in ?? ()
(gdb) bt
#0  0xffffe410 in ?? ()
#1  0xbfffeea0 in ?? ()
#2  0x00000006 in ?? ()
#3  0x000060a8 in ?? ()
#4  0xb71808cd in raise () from /lib/tls/libc.so.6
#5  0xb7182065 in abort () from /lib/tls/libc.so.6
#6  0xbfffeeb4 in ?? ()
#7  0x00000000 in ?? ()
#8  0x00000020 in ?? ()
#9  0x00000000 in ?? ()
#10 0x00000000 in ?? ()
#11 0x00000000 in ?? ()
#12 0x00000000 in ?? ()
#13 0x00000000 in ?? ()
#14 0x00000000 in ?? ()
#15 0x00000000 in ?? ()
#16 0x00000000 in ?? ()
#17 0x00000000 in ?? ()
#18 0x00000000 in ?? ()
#19 0x00000000 in ?? ()
#20 0x00000000 in ?? ()
#21 0x00000000 in ?? ()
#22 0x00000000 in ?? ()
#23 0x00000000 in ?? ()
#24 0x00000000 in ?? ()
#25 0x00000000 in ?? ()
#26 0x00000000 in ?? ()
#27 0x00000000 in ?? ()
#28 0x00000000 in ?? ()
#29 0x00000000 in ?? ()
#30 0x00000000 in ?? ()
#31 0x00000000 in ?? ()
#32 0x00000000 in ?? ()
#33 0x00000000 in ?? ()
#34 0x00000000 in ?? ()
#35 0x00000000 in ?? ()
#36 0x00000000 in ?? ()
#37 0x00000000 in ?? ()
#38 0x00000000 in ?? ()
#39 0x00000000 in ?? ()
#40 0x00000000 in ?? ()
#41 0x00000001 in ?? ()
#42 0x00000000 in ?? ()
#43 0x00000001 in ?? ()
#44 0xb7151594 in ?? ()
   from /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/libstdc++.so.5
#45 0xbfffefa8 in ?? ()
#46 0xb7120996 in std::string::_Rep::_S_create ()
   from /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/libstdc++.so.5
Previous frame inner to this frame (corrupt stack?)