On Tue, 12 Nov 2019 09:22:56 +0200 Aki Tuomi via dovecot wrote:
Hi!
Can you try follow this guide to get a core dump
https://www.dovecot.org/bugreport-mail
then provide
gdb /usr/lib/dovecot/auth /path/to/core
bt full
Sorry, I'm not familiar with gdb and can only provide this
# gdb /usr/local/dovecot//libexec/dovecot/auth GNU gdb (GDB) Fedora 8.3.50.20190824-24.fc31 Copyright (C) 2019 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: http://www.gnu.org/software/gdb/bugs/. Find the GDB manual and other documentation resources online at: http://www.gnu.org/software/gdb/documentation/.
For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/local/dovecot//libexec/dovecot/auth... (gdb) bt full No stack. (gdb) r Starting program: /usr/local/dovecot/libexec/dovecot/auth [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault. __strcmp_ssse3 () at ../sysdeps/x86_64/multiarch/../strcmp.S:173 173 movlpd (%rdi), %xmm1
Also doveconf -n could be useful.
Here it is:
# 2.2.36.4 (baf9232c1): /usr/local/dovecot/etc/dovecot/dovecot.conf # OS: Linux 5.3.8-300.fc31.x86_64 x86_64 Fedora release 31 (Thirty One) ext3 # Hostname: seymour.fritz.box 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 quota = maildir:User quota quota_rule = ?:storage=5G quota_rule2 = Trash:storage=+100M } postmaster_address = frank.elsner@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 } inet_listener imaps { port = 993 ssl = yes } process_limit = 512 process_min_avail = 3 } service imap-postlogin { executable = script-login /usr/local/sbin/dovecot-imap-post-login } service imap { executable = imap imap-postlogin 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 =
--Frank