#0  0xb7e48237 in ?? () from /lib/libc.so.6
#1  0xb7e4d916 in fseek () from /lib/libc.so.6
#2  0x080491ce in write_direct ()
#3  0x08048da3 in flush ()
#4  0x080493d5 in write_cached ()
#5  0x08049147 in write_blocks ()
#6  0x08049673 in save_structures ()
#7  0x080494e1 in unmount ()
#8  0x080497e3 in main ()