(gdb) bt full
#0  0x00002adfebfb03c5 in raise () from /lib/libc.so.6
No symbol table info available.
#1  0x00002adfebfb173e in abort () from /lib/libc.so.6
No symbol table info available.
#2  0x00002adfebfe78e7 in ?? () from /lib/libc.so.6
No symbol table info available.
#3  0x00002adfebfecaad in ?? () from /lib/libc.so.6
No symbol table info available.
#4  0x00002adfebfee796 in free () from /lib/libc.so.6
No symbol table info available.
#5  0x00002adfed9f3e0d in _unix_read_password (pamh=0x910280, ctrl=262144, 
    comment=0x0, prompt1=0x2adfecc88fa7 "�237а�200ол�214: ", 
    prompt2=0x0, data_name=0x2adfed9f7635 "-UN*X-PASS", pass=0x7fffc07d6110)
    at support.c:943
        replies = <value optimized out>
        resp = {0x0, 0x0}
        authtok_flag = 6
        retval = 0
        token = 0x7fffc07d5e40 ""
#6  0x00002adfed9f1c59 in pam_sm_authenticate (pamh=0x910280, 
    flags=<value optimized out>, argc=<value optimized out>, 
    argv=<value optimized out>) at pam_unix_auth.c:159
        ctrl = 262176
---Type <return> to continue, or q <return> to quit---
        retval = 0
        ret_data = (int *) 0x91be80
        name = 0x9103d0 "usser"
        p = <value optimized out>
#7  0x00002adfeb555b62 in _pam_dispatch (pamh=0x910280, flags=0, choice=1)
    at pam_dispatch.c:83
        h = (struct handler *) 0x91e860
        retval = <value optimized out>
        use_cached_chain = <value optimized out>
        resumed = <value optimized out>
#8  0x00002adfeb555503 in pam_authenticate (pamh=0x910280, flags=0)
    at pam_auth.c:34
        retval = <value optimized out>
#9  0x000000000040ec6d in ?? ()
No symbol table info available.
#10 0x000000000040bc84 in ?? ()
No symbol table info available.
#11 0x000000000040e33d in ?? ()
No symbol table info available.
#12 0x00002adfebf9db74 in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#13 0x0000000000408bf9 in ?? ()
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#14 0x00007fffc07d6858 in ?? ()
No symbol table info available.
#15 0x0000000000000000 in ?? ()
No symbol table info available.