(gdb) bt
#0  0x00000037dced129b in open64 () from /lib64/libc.so.6
#1  0x00000037dce72630 in _IO_file_open (read_write=<value optimized out>, 
    posix_mode=<value optimized out>, filename=<value optimized out>, 
    fp=<value optimized out>, fp=<value optimized out>, 
    filename=<value optimized out>, posix_mode=<value optimized out>, 
    prot=<value optimized out>, read_write=<value optimized out>, 
    is32not64=<value optimized out>) at fileops.c:231
#2  _IO_new_file_fopen (read_write=<value optimized out>, 
    posix_mode=<value optimized out>, filename=<value optimized out>, 
    fp=<value optimized out>, fp=<value optimized out>, 
    filename=<value optimized out>, posix_mode=<value optimized out>, 
    prot=<value optimized out>, read_write=<value optimized out>, 
    is32not64=<value optimized out>) at fileops.c:335
#3  0x00000037dce66b16 in __fopen_internal (
    filename=0x7fffffffc4f0 "/home/furutaka/.editrc", mode=0x37e06ccaeb "r", 
    is32=1) at ../libio/iofopen.c:93
#4  0x00000037e06bf72f in std::__basic_file<char>::open (this=0x7fffffffd568, 
    __name=0x7fffffffc4f0 "/home/furutaka/.editrc", 
    __mode=<value optimized out>) at basic_file.cc:237
#5  0x00000037e0670a33 in std::basic_filebuf<char, std::char_traits<char> >::open (this=0x7fffffffd500, __s=0x7fffffffc4f0 "/home/furutaka/.editrc", 
    __mode=std::_S_in)
    at /usr/src/debug/gcc-4.4.1-20090729/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/bits/fstream.tcc:99
#6  0x00000037e0671869 in std::basic_ifstream<char, std::char_traits<char> >::open (__mode=<value optimized out>, __s=<value optimized out>, 
    this=<value optimized out>)
    at /usr/src/debug/gcc-4.4.1-20090729/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/fstream:527
#7  std::basic_ifstream<char, std::char_traits<char> >::basic_ifstream (
    __mode=<value optimized out>, __s=<value optimized out>, 
    this=<value optimized out>)
    at /usr/src/debug/gcc-4.4.1-20090729/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/fstream:458
#8  0x00007ffff1f71644 in el_source (el=0x64b350, 
    fname=0x7fffffffc4f0 "/home/furutaka/.editrc")
    at core/editline/src/el.cxx:414
#9  0x00007ffff1f7b896 in rl_initialize ()
    at core/editline/src/readline.cxx:272
#10 0x00007ffff1f7d777 in write_history (filename=0x7ffff27cae19 "-")
    at core/editline/src/readline.cxx:1046
#11 0x00007ffff1f753ca in (anonymous namespace)::WriteHistoryTrigger_t::~WriteHistoryTrigger_t (this=0x7ffff26c4508, __in_chrg=<value optimized out>)
    at core/editline/src/Getline_el.cxx:252
#12 0x00000037dce367f2 in __run_exit_handlers (status=<value optimized out>, 
    status=<value optimized out>, listp=<value optimized out>, 
    run_list_atexit=<value optimized out>) at exit.c:78
#13 *__GI_exit (status=<value optimized out>, status=<value optimized out>, 
    listp=<value optimized out>, run_list_atexit=<value optimized out>)
    at exit.c:100
#14 0x00000037f3efaf4f in Py_Exit () from /usr/lib64/libpython2.6.so.1.0
#15 0x00000037f3efb078 in ?? () from /usr/lib64/libpython2.6.so.1.0
#16 0x00000037f3efb2bd in PyErr_PrintEx () from /usr/lib64/libpython2.6.so.1.0
#17 0x00000037f3efbced in PyRun_InteractiveOneFlags ()
   from /usr/lib64/libpython2.6.so.1.0
#18 0x00000037f3efbd9e in PyRun_InteractiveLoopFlags ()
   from /usr/lib64/libpython2.6.so.1.0
#19 0x00000037f3efbeac in PyRun_AnyFileExFlags ()
   from /usr/lib64/libpython2.6.so.1.0
#20 0x00000037f3f07dc9 in Py_Main () from /usr/lib64/libpython2.6.so.1.0
#21 0x00000037dce1ea2d in __libc_start_main (main=<value optimized out>, 
    argc=<value optimized out>, ubp_av=<value optimized out>, 
    init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fffffffdbc8)
    at libc-start.c:220
#22 0x0000000000400649 in _start ()