We are running Dovecot 1.0-rc27 and have run across what seems to be a
fatal error (SIGSEGV) in the past few days (4 times total in past 6 days).
It appears to have been 5 separate users, 5 separate remote IP addresses.
Two of these have this format:
Mar 26 15:13:10 myhostname dovecot: imap-login: Authenticate PLAIN failed:
Don't send unrequested data: user=<rmtuser>, method=PLAIN,
rip=10.9.9.9, lip=10.1.1.1, TLS
The other three have this format:
Mar 26 09:41:45 myhostname dovecot: imap-login: Authenticate PLAIN failed:
Don't send unrequested data: method=PLAIN, rip=10.9.9.9, lip=10.1.1.1, TLS
Here's the first one a bit more expanded, showing the SIGSEGV (signal 11):
Mar 26 15:13:10 myhostname dovecot: auth(default): client in: AUTH 1 PLAIN
service=IMAP secured lip=10.1.1.1 rip=10.9.9.9
Mar 26 15:13:10 myhostname dovecot: auth(default): client out: CONT 1
Mar 26 15:13:10 myhostname dovecot: auth(default): client in: CONT<hidden>
Mar 26 15:13:10 myhostname dovecot: auth(default): pam(rmtuser,10.9.9.9): lookup
service=IMAP
Mar 26 15:13:10 myhostname dovecot: auth(default): client out: OK 1 user=rmtuser
Mar 26 15:13:10 myhostname dovecot: auth(default): master in: REQUEST 675645
3333 1
Mar 26 15:13:10 myhostname dovecot: auth(default): passwd(rmtuser,10.9.9.9):
lookup
Mar 26 15:13:10 myhostname dovecot: auth(default): master out: USER 675645
rmtuser system_user=rmtuser uid=99999 gid=9999 home=/home/r/rmtuser
Mar 26 15:13:10 myhostname dovecot: imap-login: Authenticate PLAIN failed:
Don't send unrequested data: user=<rmtuser>, method=PLAIN,
rip=10.9.9.9, lip=10.1.1.1, TLS
Mar 26 15:13:10 myhostname dovecot: imap-login: Disconnected:
user=<rmtuser>, method=PLAIN, rip=10.9.9.9, lip=10.1.1.1, TLS
Mar 26 15:13:10 myhostname dovecot: child 3333 (login) killed with signal 11
What can I do to further diagnose this problem?
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