While trying to do ssh without password, rsa key file is created as empty.

UNIX AIX
1

Hi
i have aix 5.3 operating system, and i am trying to do ssh without passwd, when i tried to create a rsakey, it produces empty file as an output, how can solve that problem? why it is giving empty output file, i tried with different user, situation same,.i have restarted sshd server. .ssh permission is 700.
is there any idea?

#ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/xxx/.ssh/id_rsa):
/home/xxx/.ssh/id_rsa already exists.
Overwrite (y/n)? y
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/xxx/.ssh/id_rsa.
Your public key has been saved in /home/xxx/.ssh/id_rsa.pub.
The key fingerprint is:
24:e5:8b:97:7f:1b:df:9a:21:ea:18:4a:7d:97:44:e3 xxx@aaa

host </home/xxx/.ssh> ls -l
total 0
0 May 18 08:55 id_rsa
0 May 18 08:55 id_rsa.pub
2

check if the user that runs keygen has the rights to change id files

3

i deleted .ssh directory, tried to from scratch but file is still empty,nothing was changed.

---------- Post updated at 01:12 AM ---------- Previous update was at 12:05 AM ----------

problem has been solved ( inode problem of directory)
thanks