StacktraceTop:?? () _IO_link_in_internal () from /lib/libc.so.6 _IO_new_file_init () from /lib/libc.so.6 __fopen_internal () from /lib/libc.so.6 fopen@@GLIBC_2.1 () from /lib/libc.so.6
StacktraceTop:?? () in_internal () from /lib/libc.so.6
_IO_link_
_IO_new_file_init () from /lib/libc.so.6
__fopen_internal () from /lib/libc.so.6
fopen@@GLIBC_2.1 () from /lib/libc.so.6