(gdb) bt
#0  0x00b59b69 in ?? ()
#1  0x08bb93c0 in ?? ()
#2  0x08c11b18 in ?? ()
#3  0xfffffffd in ?? ()
#4  0x00b73640 in ?? ()
#5  0x00b736a0 in ?? ()
#6  0x007480e5 in ?? ()
#7  0x007480e0 in ?? ()
#8  0x00b6f4c4 in ?? ()
#9  0x00000000 in ?? ()
(gdb) bt full
#0  0x00b59b69 in ?? ()
No symbol table info available.
#1  0x08bb93c0 in ?? ()
No symbol table info available.
#2  0x08c11b18 in ?? ()
No symbol table info available.
#3  0xfffffffd in ?? ()
No symbol table info available.
#4  0x00b73640 in ?? ()
No symbol table info available.
#5  0x00b736a0 in ?? ()
No symbol table info available.
#6  0x007480e5 in ?? ()
No symbol table info available.
#7  0x007480e0 in ?? ()
No symbol table info available.
#8  0x00b6f4c4 in ?? ()
No symbol table info available.
#9  0x00000000 in ?? ()
No symbol table info available.