Hi,
not sure which change caused it, but one of the latest adds between those two snapshots breaks userdb lookup:
Jun 1 21:53:30 spectre dovecot: master: Dovecot v2.0.beta5 (1b45f9641924) starting up Jun 1 21:53:30 spectre dovecot: master: Warning: Killed with signal 15 (by pid=6898 uid=0 […] Jun 1 21:53:40 spectre dovecot: master: Dovecot v2.0.beta5 (55b8480849b0) starting up Jun 1 21:53:40 spectre dovecot: master: Warning: Killed with signal 15 (by pid=8577 uid=0 code=kill)
Jun 1 21:52:30 spectre postfix/lmtp[6787]: F151B408D: to=<tlx@leuxner.net>, relay=spectre.leuxner.net[private/dovecot-lmtp], delay=0.09, delays=0.06/0/0/0.04, dsn=4.3.0, status=deferred (host spectre.leuxner.net[private/dovecot-lmtp] said: 451 4.3.0 <tlx@leuxner.net> Internal error occurred. Refer to server log for more information. (in reply to RCPT TO command))
==> /var/log/dovecot.log <== Jun 1 21:52:30 spectre dovecot: lmtp(6788): Connect from local Jun 1 21:52:30 spectre dovecot: master: Error: service(auth): child 6797 killed with signal 11 (core not dumped) Jun 1 21:52:30 spectre dovecot: lmtp(6788): Error: userdb lookup(tlx@leuxner.net): Disconnected unexpectedly Jun 1 21:52:30 spectre dovecot: master: Error: service(auth): command startup failed, throttling Jun 1 21:52:30 spectre dovecot: lmtp(6788): Disconnect from local: Client quit
==> /var/log/mail.log <== Jun 1 21:52:58 spectre postfix/qmgr[3246]: 5619A4086: from=<users-return-95390-lists=leuxner.net@httpd.apache.org>, size=6226, nrcpt=1 (queue active)
==> /var/log/dovecot.log <== Jun 1 21:52:58 spectre dovecot: lmtp(6788): Connect from local
Reverting to changeset 55b8480849b0 restores functionality.
Regards Thomas