Hi! Can you provide gdb bt full output for this crash?
Install debug symbols (if necessary) and gdb /usr/libexec/dovecot/imap /path/to/core bt full Aki On 28 October 2021 11.27.07 UTC, Frank Elsner <frank.els...@mailbox.org> wrote: >On Thu, 28 Oct 2021 12:12:53 +0300 (EEST) Aki Tuomi wrote: >> We are pleased to release v2.3.17 of Dovecot. > >Hello, > >on my private fully updated Fedora 34 system I've replaced version 2.3.16 by >version 2.3.17 without touching the configuration. > >Whereas version 2.3.16 worked the new 2.3.17 says >Oct 28 11:29:27 christo dovecot[216609]: imap-login: Login: frank, 127.0.0.1, >TLS >Oct 28 11:29:27 christo dovecot[216609]: IMAP(frank,127.0.0.1): ID sent: >name=imapsync, version=1.977, os=linux, vendor=Gilles LAMIRAL, >support-url=https://imapsync.lamiral.info/, date=23-Dec-2019 20:18:02 +0000, >side=host2 >Oct 28 11:29:27 christo dovecot[216609]: IMAP(frank,127.0.0.1): Fatal: master: >service(imap): child 216943 killed with signal 11 (core dumped) >Oct 28 11:29:27 christo dovecot[216609]: imap-login: Login: frank, 127.0.0.1, >TLS >Oct 28 11:29:27 christo dovecot[216609]: IMAP(frank,127.0.0.1): Fatal: master: >service(imap): child 216952 killed with signal 11 (core dumped) >Oct 28 11:29:27 christo dovecot[216609]: imap-login: Login: frank, 127.0.0.1, >TLS >Oct 28 11:29:27 christo dovecot[216609]: IMAP(frank,127.0.0.1): Fatal: master: >service(imap): child 216964 killed with signal 11 (core dumped) > > >For comparison the old version > >Oct 28 11:36:58 christo dovecot[279524]: imap-login: Login: frank, 127.0.0.1, >TLS >Oct 28 11:36:58 christo dovecot[279524]: IMAP(frank,127.0.0.1): ID sent: >name=imapsync, version=1.977, os=linux, vendor=Gilles LAMIRAL, >support-url=https://imapsync.lamiral.info/, date=23-Dec-2019 20:18:02 +0000, >side=host2 >Oct 28 11:37:37 christo dovecot[279524]: IMAP(frank,127.0.0.1): Disconnected: >Logged out [79451/32883563] > > >If required here is the configuration which is rather old but worked until >2.3.16 > ># 2.3.16 (7e2e900c1a): /usr/local/dovecot/etc/dovecot/dovecot.conf ># OS: Linux 5.14.13-200.fc34.x86_64 x86_64 Fedora release 34 (Thirty Four) ext3 ># Hostname: christo >auth_mechanisms = plain login >default_client_limit = 1024 >default_process_limit = 256 >default_vsz_limit = 512 M >first_valid_uid = 200 >last_valid_uid = 65534 >listen = * >lmtp_save_to_detail_mailbox = yes >login_greeting = m28a.ddns.net - IMAPs Service (dovecot) ready. >login_log_format_elements = %u %r %c >mail_location = maildir:/var/spool/mail/%u:LAYOUT=fs >mail_log_prefix = "%Us(%u,%r): " >mail_plugin_dir = /usr/dovecot/lib/dovecot/ >mail_plugins = notify quota fts fts_squat acl >namespace inbox { > inbox = yes > list = yes > location = > mailbox Drafts { > special_use = \Drafts > } > mailbox Gesendet { > special_use = \Sent > } > mailbox SPAM { > special_use = \Junk > } > mailbox Sent { > special_use = \Sent > } > mailbox Trash { > special_use = \Trash > } > prefix = > subscriptions = yes > type = private >} >passdb { > args = dovecot > driver = pam >} >plugin { > fts = squat > fts_squat = partial=4 full=10 > mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename > flag_change append > mail_log_fields = uid box from subject msgid size flags > mail_log_group_events = yes >} >postmaster_address = mailona...@mailbox.org >protocols = imap >service anvil { > client_limit = 1024 >} >service auth { > unix_listener auth-client { > group = exim > mode = 0660 > user = exim > } >} >service imap-login { > inet_listener imap { > port = 143 > } > process_limit = 512 > process_min_avail = 3 >} >service imap-postlogin { > executable = script-login /usr/local/sbin/dovecot-imap-post-login >} >service imap { > executable = imap > process_limit = 128 >} >service pop3-login { > inet_listener pop3 { > port = 110 > } > inet_listener pop3s { > port = 995 > ssl = yes > } >} >service pop3 { > process_limit = 128 >} >ssl_cert = </usr/local/etc/Certs/m28a.crt >ssl_dh = # hidden, use -P to show it >ssl_key = # hidden, use -P to show it >userdb { > driver = passwd >} >verbose_proctitle = yes >protocol lmtp { > mail_plugins = notify quota fts fts_squat acl >} >protocol lda { > mail_plugins = notify quota fts fts_squat acl >} >protocol imap { > imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags > imap_id_log = * > imap_logout_format = [%i/%o] > mail_max_userip_connections = 0 > mail_plugins = notify quota fts fts_squat acl quota imap_quota listescape > fts fts_squat >} > > >What's going on? Any pointer to solution welcome. > > >Kind regards, Frank