[Dovecot] Strange Error after some hour of inactivity.

[Ramunas]

Hi,
in near future planing migrate our E-mail server to new hardware.
Decided try dovecot as IMAP and POP3 server.
Compiled latest dovecot-1.0.beta8 version on Linux Fedora Core 3 machine (2.6 kernel).
Users database are on PostgreSQL server.
Everything working fine except some issues.

After some hour of inactivity (POP3 or IMAP) then connecting to check e-mail got this error:
invalid I/O fd 8, callback 0x8064d30.
Next connection without service restart working fine again but only when in dovecot.conf exsist this option:
login_process_per_connection = yes. When "login_process_per_connection = no" , always got "invalid I/O fd 8, callback 0x8064d30" error.

from log file ( in dovecot.conf login_process_per_connection = yes):
...
Jun  2 08:34:31 srv1 dovecot: auth(default): sql(ramas,192.168.0.3): Password query failed:
Jun  2 08:34:31 srv1 dovecot: auth(default): invalid I/O fd 8, callback 0x8064d30
Jun  2 08:34:31 srv1 dovecot: auth(default): sql(ramas,192.168.0.3): Password query failed:
Jun  2 08:34:31 srv1 dovecot: auth(default): file auth-request.c: line 347 (auth_request_verify_plain_callback): assertion failed:(request->state == AUTH_REQUEST_STATE_PASSDB)
Jun  2 08:34:31 srv1 dovecot: pop3-login: Disconnected: method=PLAIN, rip=192.168.0.3, lip=192.168.0.6, TLS
Jun  2 08:34:31 srv1 dovecot: child 12203 (auth) killed with signal 6
Jun  2 08:34:31 srv1 dovecot: auth(default): pgsql: Connected to hosting
Jun  2 08:34:34 srv1 dovecot: pop3-login: Login: user=<ramas>, method=PLAIN, rip=192.168.0.3, lip=192.168.0.6, TLS
Jun  2 08:34:34 srv1 dovecot: POP3(ramas): Disconnected: Logged out top=0/0, retr=2/3502, del=2/2, size=3468
...

also have troubles with maildir quota on POP3 module (IMAP works fine):

mail log:
...
Jun  1 20:29:40 srv1 dovecot: Dovecot v1.0.beta8 starting up
Jun  1 20:29:41 srv1 dovecot: auth(default): pgsql: Connected to hosting
Jun  1 20:29:44 srv1 dovecot: POP3(ramas): dlopen(/usr/lib/dovecot/lib01_quota_plugin.so) failed: /usr/lib/dovecot/lib01_quota_plugin.so: undefined symbol: mountpoint_get
Jun  1 20:29:44 srv1 dovecot: pop3-login: Login: user=<ramas>, method=PLAIN, rip=192.168.0.3, lip=192.168.0.6, TLS
Jun  1 20:29:44 srv1 dovecot: child 21465 (pop3) returned error 89
Jun  1 20:43:09 srv1 dovecot: Killed with signal 15
...

For this issue i found solution with manual compilation POP3 module:
appended dependence -o ../lib/mountpoint.o


Best regards,

Ramas
Lithuania, Marijampole

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