passwd unrecoverable error 1265

[Vlado <v dot 99cygwin at gmail dot com>]

Hello.

I have few users with sshd-only access to server.  They use passwd when 
changing passwords.

passwd is not working anymore for regular user (remote connection with 
PuTTy):

     test@server ~
     $ passwd
     Old password:
     New password:
     Re-enter new password:
     passwd: unrecoverable error 1265
     Try again.
     New password:

I, the administrator of server, can use passwd without problem (local 
Cygwin console):

     Admin@server ~
     $ passwd test
     New password:
     Re-enter new password:
     Password changed.

     admin@server ~

passwd worked normally one or two months ago.

More info:

test is member of Users group only. My /etc/nsswitch.conf is

     $ grep -vE '^#' /etc/nsswitch.conf
     db_home:  cygwin desc /home/%U
     db_shell: cygwin desc /bin/bash

I ran

     test@server~
     $ strace -o strace.out passwd
     Old password:
     New password:
     Re-enter new password:
     passwd: unrecoverable error 1265
     Try again.
     New password: # no response on Ctrl-C here...
     Re-enter new password:
     passwd: unrecoverable error 1265
     Try again.
     New password:
     Re-enter new password:
     passwd: unrecoverable error 1265

     test@server~

cygcheck.out and strace.out attached.

Can somebody look what is wrong, please?

Vlado

P.S.: Sending this again, because first mail lost somewhere...

Attachment: cygcheck.out
Description: Text document

Attachment: strace.out
Description: Text document

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