dovecot - Sep 2008 - 1.2.alpha1: file_dotlock_open() failed with subscription file

Hi *,

running dovecot 1.2.alpha1 I find the following messages in the log:

Sep 10 01:28:38 seymour dovecot: IMAP(steffen,192.168.28.31):
fchown(/home/Mail/steffen/subscriptions.lock) failed: Operation not permitted
Sep 10 01:28:38 seymour dovecot: IMAP(steffen,192.168.28.31):
file_dotlock_open() failed with subscription file
/home/Mail/steffen/subscriptions: Operation not permitted
Sep 10 01:28:38 seymour dovecot: IMAP(steffen,192.168.28.31):
fchown(/home/Mail/steffen/subscriptions.lock) failed: Operation not permitted
Sep 10 01:28:38 seymour dovecot: IMAP(steffen,192.168.28.31):
file_dotlock_open() failed with subscription file
/home/Mail/steffen/subscriptions: Operation not permitted
Sep 10 01:28:52 seymour dovecot: IMAP(steffen,192.168.28.31):
fchown(/home/Mail/steffen/subscriptions.lock) failed: Operation not permitted
Sep 10 01:28:52 seymour dovecot: IMAP(steffen,192.168.28.31):
file_dotlock_open() failed with subscription file
/home/Mail/steffen/subscriptions: Operation not permitted

File permissions are:

-rw------- 1 steffen elsner 124 Aug 22 12:51 /home/Mail/steffen/subscriptions

And finally the output of "dovecot -n" reads:

# 1.2.alpha1: /usr/local/dovecot/etc/dovecot.conf
base_dir: /var/run/dovecot/
ssl_cert_file: /usr/local/etc/seymour.crt
ssl_key_file: /usr/local/etc/seymour.key
disable_plaintext_auth: no
login_dir: /var/run/dovecot//login
login_executable: /usr/dovecot/libexec/dovecot/imap-login
login_greeting: c64.shuttle.de - Dovecot ready.
login_log_format_elements: %u %r %c
login_processes_count: 2
verbose_proctitle: yes
first_valid_uid: 100
last_valid_uid: 65534
mail_location: maildir:/home/Mail/%u:INDEX=MEMORY
maildir_copy_preserve_filename: yes
mail_executable: /usr/dovecot/libexec/dovecot/imap
mail_plugin_dir: /usr/dovecot/lib/dovecot/imap
mail_log_prefix: %Us(%u,%r): 
mail_log_max_lines_per_sec: 100
imap_client_workarounds: netscape-eoh tb-extra-mailbox-sep
imap_logout_format: [%i/%o]
auth default:
  executable: /usr/dovecot/libexec/dovecot/dovecot-auth
  master_user_separator: /
  passdb:
    driver: pam
    args: dovecot
  passdb:
    driver: passwd-file
    args: /usr/dovecot/etc/masters
  userdb:
    driver: passwd
plugin:
  mail_log_events: delete undelete expunge copy mailbox_delete


What's behind? Critical? How to solve?



Regards, Frank Elsner

On Wed, 2008-09-10 at 11:13 +0200, Frank Elsner wrote:
> Sep 10 01:28:38 seymour dovecot: IMAP(steffen,192.168.28.31):
fchown(/home/Mail/steffen/subscriptions.lock) failed: Operation not permitted
This'll improve the error message:
http://hg.dovecot.org/dovecot-1.2/rev/c22b7db8c173
> File permissions are:
> 
> -rw------- 1 steffen elsner 124 Aug 22 12:51
/home/Mail/steffen/subscriptions
What about /home/Mail/steffen directory's? It's probably trying to
preserve its group. If so, either change the group or chmod g+s it or
give mail process permission for that group.

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On Wed, 10 Sep 2008 21:48:01 +0300 Timo Sirainen wrote:
> On Wed, 2008-09-10 at 11:13 +0200, Frank Elsner wrote:
> > Sep 10 01:28:38 seymour dovecot: IMAP(steffen,192.168.28.31):
fchown(/home/Mail/steffen/subscriptions.lock) failed: Operation not permitted
> 
> This'll improve the error message:
> http://hg.dovecot.org/dovecot-1.2/rev/c22b7db8c173
> 
> > File permissions are:
> > 
> > -rw------- 1 steffen elsner 124 Aug 22 12:51
/home/Mail/steffen/subscriptions
> 
> What about /home/Mail/steffen directory's? It's probably trying to
> preserve its group. If so, either change the group or chmod g+s it or
> give mail process permission for that group.
# ls -dal /home/Mail/steffen
drwxr-x--- 19 steffen mail 4096 Sep 10 22:12 /home/Mail/steffen/


--Frank Elsner