[Dovecot] 1.11 bug?: file client-common.c: line 25 (client_unlink): assertion failed: (clients_count > 0)

[Long Le Dinh]

Yes Timo, found "Warning: Killed with signal 15" in the log. What can be "something" that killed dovecot?

Mar 26 17:18:43 Info: pop3-login: Login: user=<xxx>, method=PLAIN, rip=x.x.x.x, lip=y.y.y.y
Mar 26 17:18:43 Info: POP3(xxx): Disconnected: Logged out top=0/0, retr=0/0, del=0/207, size=35162343
Mar 26 17:18:43 Warning: Killed with signal 15
Mar 26 17:18:43 Info: pop3-login: Disconnected: Shutting down (no auth attempts): rip=x.x.x.x, lip=y.y.y.y
Mar 26 17:18:43 Info: pop3-login: Disconnected: Shutting down (auth failed, 11997592 attempts): user=<??�>, method=??�
Mar 26 17:18:43 Panic: pop3-login: file client-common.c: line 25 (client_unlink): assertion failed: (clients_count > 0)
Mar 26 17:18:46 Info: dovecot v1.1.11 starting up (core dumps disabled)

Thanks,
-  
Long Le


On Mon, 2009-03-30 at 01:54 -0400, Timo Sirainen wrote:
> Well. There are two problems: First is that it's crashing, which is  
> clearly a bug. It just shouldn't happen. If you upgraded to v1.1.13  
> you would probably get a core dump, and that might be useful in  
> figuring out the crash (http://dovecot.org/bugreport.html), but the  
> real problem appears to be in the Disconnected reason. "Shutting down"  
> means that the whole Dovecot is being shut down. Which most likely  
> means that something killed dovecot master process. Do you see such a  
> line in logs? Probably "Warning: killed with signal <something>".
> 
> On Mar 29, 2009, at 11:41 PM, Long Le Dinh wrote:
> 
> > Any help on this? It happens more frequently :(. Is this related to  
> > LDAP
> > authen?
> >
> > Thanks,
> > -
> > Long Le
> >
> >
> > On Fri, 2009-03-27 at 13:14 +0700, Long Le Dinh wrote:
> >> Hi,
> >>
> >> I got below log in last 2 days, I have to restart dovecot as pop3- 
> >> login failed and service cannot respond.
> >>
> >> Mar 26 14:19:31 Info: pop3-login: Disconnected: Shutting down (auth  
> >> failed, 1 attempts): method=PLAIN, rip=x.x.x.x
> >> Mar 26 14:19:31 Info: pop3-login: Disconnected: Shutting down  
> >> (tried to use disabled plaintext auth): method=??<B7>
> >> Mar 26 14:19:31 Panic: pop3-login: file client-common.c: line 25  
> >> (client_unlink): assertion failed: (clients_count > 0)
> >> Mar 26 14:19:31 Error: child 31902 (login) killed with signal 6  
> >> (ip=x.x.x.x)
> >>
> >> My system info:
> >> dovecot -n
> >> # 1.1.11: /etc/dovecot.conf
> >> # OS: Linux 2.6.18-8.el5 i686 CentOS release 5 (Final) ext3
> >> log_path: /var/log/dovecot.log
> >> login_dir: /var/run/dovecot/login
> >> login_executable(default): /usr/libexec/dovecot/imap-login
> >> login_executable(imap): /usr/libexec/dovecot/imap-login
> >> login_executable(pop3): /usr/libexec/dovecot/pop3-login
> >> mail_gid: 100
> >> mail_location: maildir:/home/%u/Maildir
> >> mail_executable(default): /usr/libexec/dovecot/imap
> >> mail_executable(imap): /usr/libexec/dovecot/imap
> >> mail_executable(pop3): /usr/libexec/dovecot/pop3
> >> mail_plugin_dir(default): /usr/lib/dovecot/imap
> >> mail_plugin_dir(imap): /usr/lib/dovecot/imap
> >> mail_plugin_dir(pop3): /usr/lib/dovecot/pop3
> >> auth default:
> >>  verbose: yes
> >>  debug: yes
> >>  passdb:
> >>    driver: ldap
> >>    args: /etc/dovecot-ldap.conf
> >>  userdb:
> >>    driver: passwd
> >>  userdb:
> >>    driver: ldap
> >>    args: /etc/dovecot-ldap.conf
> >>
> >> We're using Maildir format, no NFS. Any help/clue is appreciated.
> >>
> >> Thanks,
> >> -
> >> Long Le
> >>
>