- dovecot - dovecot.org

cumulative resource limit exceeded
by Mats Mellstrand 31 Dec '21

31 Dec '21

Hi I’m running dovecot-2.3.15 and dovecot-pigeonhole-0.5.15 on FreeBSD 13 To day i suddenly get errors in my personal logfile (.dovecot.sieve.log) sieve: info: started log at Dec 29 20:26:42. .dovecot: error: cumulative resource usage limit exceeded. Is there anything I can do about this error? /mm

3 2

modernizing dovecot.conf
by Laura Steynes 30 Dec '21

30 Dec '21

Happy Holidays, And if you like me are working throughout so more senior engineers get their holidays, my condolences hah Taking the time to bring our dovecot.conf into the 2021/22 era .since its quiet time of year, Do I read it right that where we have things like service imap { process_limit = 1024 executable = imap imap-postlogin are not needed now ? and process limit is a global option? things like pop3/imap_client_workarounds = fooy are now global options, not to be in protocol { } sections ? I am reading the example conf files and see these outside the protocol sections where they have in the past lived, this is what makes me think they are now global and not needed in sub sections. but I may be missing some linking going from file to file , we have forever updated our single config file, just fixing whatever breaks when major versions break something, easier to find options in one file, rather than trying to sift through 40 included files like I am looking at now :-)

4 7

Six failed tests on openindiana (Opensolaris derivative)
by Friedrich Kink 29 Dec '21

29 Dec '21

Hi all, I'm new to this list, so please forgive me if I violate netiquette (and let me know how to improve, because it is not at all my intent). I want to create two packages (dovecot and dovecot-2.3-pigeonhole) hosted by openindiana.org. First of all, everything compiles fine and works as expected, but (there is always a but ;-)) 6 out of 41540 tests failed. To build a clean package I'd like to understand the nature of the failed tests and even more would like to fix the tests. I tried to find some hints how to tackle down the issue but was not successful so far. dovecot version 2.3.17.1, gcc version (OpenIndiana 7.5.0-il-0) 7.5.0 configure options: --sysconfdir=/etc \ --with-gssapi=plugin \ --with-ldap=plugin \ --with-sql=plugin \ --with-lua=plugin \ --with-ssl=openssl \ --with-sodium \ --with-mysql \ --with-pgsql failed tests: array_free ........................................................... : ok $(SOURCE_DIR)/src/lib/test-backtrace.c:21: Assert failed: strstr(str_c(bt), "main") != NULL backtrace_append ..................................................... : FAILED $(SOURCE_DIR)/src/lib/test-backtrace.c:45: Assert failed: strstr(bt, "main") != NULL backtrace_get ........................................................ : FAILED base32_encode() with padding ......................................... : ok buffer_replace() ..................................................... : ok $(SOURCE_DIR)/src/lib/test-buffer-istream.c:55: Assert failed: buffer_append_full_file(result, TEST_FILENAME, SIZE_MAX, &error) == BUFFER_APPEND_READ_ERROR $(SOURCE_DIR)/src/lib/test-buffer-istream.c:56: Assert failed: error != NULL && *error != '\0' buffer_append_full_file .............................................. : FAILED buffer_append_full_istream ........................................... : ok connection idle kill ................................................. : ok $(SOURCE_DIR)/src/lib/test-connection.c:563: Assert failed: !received_quit $(SOURCE_DIR)/src/lib/test-connection.c:563: Assert failed: !received_quit connection handshake failed (version) ................................ : FAILED connection handshake failed (handshake_args) ......................... : ok file_cache_switch_fd ................................................. : ok $(SOURCE_DIR)/src/lib-test/test-common.c:245: Assert failed: suppress == TRUE Error: fstat(.test_file_cache) failed: Bad file number $(SOURCE_DIR)/src/lib-test/test-common.c:245: Assert failed: suppress == TRUE Error: mmap_anon(.test_file_cache, 4096) failed: Not enough space $(SOURCE_DIR)/src/lib-test/test-common.c:245: Assert failed: suppress == TRUE Error: mremap_anon(.test_file_cache, 8192) failed: Not enough space file_cache_errors .................................................... : FAILED file_create_locked() ................................................. : ok ostream file send istream file ....................................... : ok $(SOURCE_DIR)/src/lib/test-ostream-file.c:172: Assert failed: input2->v_offset == 10 $(SOURCE_DIR)/src/lib/test-ostream-file.c:173: Assert failed: output->offset == 14 ostream file send istream sendfile() ................................. : FAILED ostream multiplex (simple) ........................................... : ok Again, compilation works clean without any warning. If you could provide some hints how to start would be great. I know I'm kind of inch picker but want to provide best experience to possible users and not give any chance to complain back to dovecot community. kind regards, Fritz

2 1

dovecot panic
by tobisworld＠gmail.com 27 Dec '21

27 Dec '21

Hi list since today I receive dovecot panics in my mail logs, whenever I want to access on my inbox in my mailclient (evolution) Details: dovecot --version 2.3.17.1 (476cd46418) Centos 7 (latest updates) x86 architecture mailbox stored in NFS > Panic: file mail-index-transaction-finish.c: line 185 (mail_index_transaction_get_uid): assertion failed: (seq <= t->view- >map->hdr.messages_count) > Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7fb86f592142] -> /usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7fb86f59224e] -> /usr/lib64/dovecot/libdovecot.so.0(+0xf72fe) [0x7fb86f5a02fe] -> /usr/lib64/dovecot/libdovecot.so.0(+0xf73a1) [0x7fb86f5a03a1] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7fb86f4eee38] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xf438d) [0x7fb86f95b38d] - > /usr/lib64/dovecot/libdovecot-storage.so.0(+0xf43da) [0x7fb86f95b3da] -> /usr/lib64/dovecot/libdovecot- storage.so.0(mail_index_transaction_finish+0x177) [0x7fb86f95ba87] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xf9ad6) [0x7fb86f960ad6] - > /usr/lib64/dovecot/libdovecot- storage.so.0(mail_index_transaction_commit_full+0x9d) [0x7fb86f960fad] -> /usr/lib64/dovecot/libdovecot- storage.so.0(mail_index_transaction_commit+0x1c) [0x7fb86f96106c] -> /usr/lib64/dovecot/libdovecot- storage.so.0(mail_cache_set_seq_corrupted_reason+0x61) [0x7fb86f94a921] -> /usr/lib64/dovecot/libdovecot- storage.so.0(mail_set_mail_cache_corrupted+0xed) [0x7fb86f8b9bbd] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0x7a3e9) [0x7fb86f8e13e9] - > /usr/lib64/dovecot/libdovecot-storage.so.0(+0x7a6b0) [0x7fb86f8e16b0] -> /usr/lib64/dovecot/libdovecot- storage.so.0(mail_get_physical_size+0x38) [0x7fb86f8a6ba8] -> /usr/libexec/dovecot//lib20_mail_log_plugin.so(+0x2465) [0x7fb86e49b465] -> /usr/libexec/dovecot//lib15_notify_plugin.so(notify_contexts_mail_copy+ 0x5c) [0x7fb86e69f3ec] -> /usr/libexec/dovecot//lib15_notify_plugin.so(+0x25d4) [0x7fb86e6a05d4] -> /usr/libexec/dovecot//lib10_quota_plugin.so(+0x102ae) [0x7fb86eab72ae] -> /usr/libexec/dovecot//lib01_acl_plugin.so(+0xef3e) [0x7fb86eccef3e] -> /usr/lib64/dovecot/libdovecot- storage.so.0(+0x50c4c) [0x7fb86f8b7c4c] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_move+0x58) [0x7fb86f8b7ec8] -> dovecot/imap(+0x1175b) [0x55a2b1a5375b] -> dovecot/imap(command_exec+0x64) [0x55a2b1a61f04] -> dovecot/imap(+0x1dde2) [0x55a2b1a5fde2] -> dovecot/imap(+0x1de71) [0x55a2b1a5fe71] -> dovecot/imap(+0x1e039) [0x55a2b1a60039] -> dovecot/imap(client_handle_input+0x205) [0x55a2b1a602f5] -> dovecot/imap(client_input+0x79) [0x55a2b1a608d9] I attached output from dovecot-sysreport here to this report Best regards tobi

1 1

Re: Dovecot does not start on MacOS 12.01
by Steven Smith 19 Dec '21

19 Dec '21

Re: https://www.mail-archive.com/dovecot@dovecot.org/msg84784.html <https://www.mail-archive.com/dovecot@dovecot.org/msg84784.html> I just upgraded to macOS 12.1, ran into this issue, and discovered this thread from the error message. Is there a viable workaround or patch yet? I tried the workaround in this thread, and still see these issues. Set default_vsz_limit = 0 in ./conf.d/10-master.conf. Observe that: dovecot now launches without the setrlimit(RLIMIT_DATA, 268435456) error at the command line However, the mail-err.log is still filled with these errors (below), perhaps for the child processes. Steve > Dec 19 11:22:06 imap-login: Error: Dec 19 11:22:06 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:06 imap-login: Error: Dec 19 11:22:06 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:06 imap-login: Error: Dec 19 11:22:06 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:06 imap-login: Error: Dec 19 11:22:06 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:06 imap-login: Error: Dec 19 11:22:06 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:06 imap-login: Fatal: master: service(imap-login): child 4629 returned error 89 (Fatal failure) > Dec 19 11:22:06 master: Error: service(imap-login): command startup failed, throttling for 2.000 secs > Dec 19 11:22:06 imap-login: Fatal: master: service(imap-login): child 4630 returned error 89 (Fatal failure) > Dec 19 11:22:06 imap-login: Fatal: master: service(imap-login): child 4628 returned error 89 (Fatal failure) > Dec 19 11:22:06 imap-login: Fatal: master: service(imap-login): child 4627 returned error 89 (Fatal failure) > Dec 19 11:22:06 imap-login: Fatal: master: service(imap-login): child 4619 returned error 89 (Fatal failure) > Dec 19 11:22:06 imap-login: Error: Dec 19 11:22:06 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:06 imap-login: Fatal: master: service(imap-login): child 4631 returned error 89 (Fatal failure) > Dec 19 11:22:09 imap-login: Error: Dec 19 11:22:09 service(imap-login): Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument > Dec 19 11:22:09 imap-login: Fatal: master: service(imap-login): child 4638 returned error 89 (Fatal failure) > Dec 19 11:22:09 master: Error: service(imap-login): command startup failed, throttling for 4.000 secs > On Mon, 1 Nov 2021 14:55:25 +0200, Aki Tuomi said: > > I think this is happening because MacOS no longer supports RLIMIT_DATA. We'll > try to look into this. default_vsz_limit = 0 seems good enough workaround. > Aki

1 2

Undefined symbol using fts-flatcurve with repo.dovecot.org packages
by Mike Acar 18 Dec '21

18 Dec '21

Hi, I'm trying to use dovecot-fts-flatcurve with dovecot 2:2.3.15-1+debian10 from repo.dovecot.org, but it looks like the package doesn't include ICU, which fts-flatcurve requires. After compilation and installation, I get an error from doveadm: doveadm fts-flatcurve stats -u user INBOX Fatal: Couldn't load required plugin /usr/lib/dovecot/modules/lib21_fts_flatcurve_plugin.so: dlopen() failed: /usr/lib/dovecot/modules/lib21_fts_flatcurve_plugin.so: undefined symbol: _ZTIN6icu_638ByteSinkE Unmangled, I think that's this symbol: U typeinfo for icu_63::ByteSink I checked the rules file from dovecot_2.3.15-1%2Bdebian10.debian.tar.xz and it appears that configure doesn't include --with-icu. Is there a plan to include this in a future release? -- | Mike Acar | | mike at waspfactory dot org |

1 0

Re: Re: invalid vsize-hdr
by Станислав Дырив 17 Dec '21

17 Dec '21

it helps for me (dovecot 2.2.36 @ centos7): #delete index files: find /path/to/user/maildir/ -type f -name dovecot.index* -delete find /path/to/user/maildir/ -type f -name dovecot-uidlist -delete #then re-create index by command: doveadm force-resync -u "user(a)domain.com" '*'

1 0

Can dovecot be leveraged to exploit Solr/Log4shell?
by Joseph Tam 15 Dec '21

15 Dec '21

I'm surprised I haven't seen this mentioned yet. An internet red alert went out Friday on a new zero-day exploit. It is an input validation problem where Java's Log4j module can be instructed via a specially crafted string to fetch and execute code from a remote LDAP server. It has been designated the Log4shell exploit (CVE-2021-44228). Although I don't use it, I immediately thought of Solr, which provides some dovecot installations with search indexing. Can dovecot be made to pass on arbitrary loggable strings to affected versions of Solr (7.4.0-7.7.3, 8.0.0-8.11.0)? Those running Solr to implement Dovecot FTS should look at https://solr.apache.org/security.html#apache-solr-affected-by-apache-log4j-… Joseph Tam <jtam.home(a)gmail.com>

6 8

quota warnings not sent out anymore
by mj 15 Dec '21

15 Dec '21

Hi, We suddenly realised that our maildir quota warnings are no longer sent out. We don't understand why not. This is dovecot 2.3.4.1 on debian 10.11. We use a script to send out the notification, adapted from the dovecot wiki here: (https://doc.dovecot.org/configuration_manual/quota/) Our quota notification script is: > #!/bin/sh > PERCENT=$1 > USER=$2 > cat << EOF | /usr/lib/dovecot/dovecot-lda -d $USER -o "plugin/quota=maildir::noenforcing" > From: noreply(a)domain.com > Subject: quota warning > > Your mailbox is now $PERCENT% full. > > Please delete or archive items to decrease your mailbox size. Our complete doveconf -n output is at the end of this email. When calling the script manually as user root, it works perfectly. But as user vmail or dovecot, no notifications are sent at all. I guess this is relevant: > root@dovecot:/etc/dovecot# ls -l /var/run/dovecot/ > total 8 > srw------- 1 root root 0 Dec 6 00:00 anvil > srw------- 1 root root 0 Dec 6 00:00 anvil-auth-penalty > srw------- 1 dovecot root 0 Dec 6 11:34 auth-client > srw------- 1 dovecot root 0 Dec 6 11:34 auth-login > srw------- 1 root root 0 Dec 6 11:34 auth-master > -rw------- 1 root root 32 Jul 19 17:39 auth-token-secret.dat > srw-rw-rw- 1 vmail vmail 0 Dec 6 11:34 auth-userdb > srw------- 1 dovecot root 0 Dec 6 11:34 auth-worker > srw------- 1 root root 0 Dec 6 11:34 config > srw-rw---- 1 root dovecot 0 Dec 6 11:34 dict > srw-rw---- 1 root dovecot 0 Dec 6 11:34 dict-async > srw------- 1 root root 0 Dec 6 11:34 director-admin > srw-rw-rw- 1 root root 0 Dec 6 11:34 dns-client > srw------- 1 root root 0 Dec 6 11:34 doveadm-server > lrwxrwxrwx 1 root root 25 Dec 6 00:00 dovecot.conf -> /etc/dovecot/dovecot.conf > drwxr-xr-x 2 root root 40 Jul 19 17:39 empty > srw-rw---- 1 root dovecot 0 Dec 6 11:34 imap-hibernate > srw------- 1 root root 0 Dec 6 11:34 imap-master > srw-rw-rw- 1 root root 0 Dec 6 11:34 imap-urlauth > srw------- 1 dovecot root 0 Dec 6 11:34 imap-urlauth-worker > srw-rw-rw- 1 root root 0 Dec 6 11:34 indexer > srw------- 1 dovecot root 0 Dec 6 11:34 indexer-worker > srw------- 1 dovecot root 0 Dec 6 11:34 ipc > srw-rw-rw- 1 root root 0 Dec 6 11:34 lmtp > srw------- 1 root root 0 Dec 6 11:34 log-errors > drwxr-x--- 2 root nogroup 120 Dec 6 11:34 login > srw------- 1 root root 0 Dec 6 11:34 master > -rw------- 1 root root 6 Dec 6 00:00 master.pid > srw------- 1 root root 0 Dec 6 11:34 old-stats > prw------- 1 root root 0 Dec 6 11:34 old-stats-mail > prw------- 1 root root 0 Dec 6 11:34 old-stats-user > srw------- 1 vmail root 0 Dec 6 11:34 quota-warning > srw------- 1 root root 0 Dec 6 11:34 replication-notify > prw------- 1 root root 0 Dec 6 11:34 replication-notify-fifo > srw------- 1 dovecot root 0 Dec 6 11:34 replicator > srw-rw---- 1 vmail vmail 0 Dec 6 11:34 stats-reader > srw-rw---- 1 vmail vmail 0 Dec 6 11:34 stats-writer > drwxr-x--- 2 root nogroup 80 Dec 6 11:34 token-login Can anyone help, and explain what is going on here? Thank you very much in advance for a reply! MJ The doveconf -n output: > root@imap:/etc/dovecot# doveconf -n > # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf > # Pigeonhole version 0.5.4 () > # OS: Linux 4.19.0-17-amd64 x86_64 Debian 10.11 xfs > # Hostname: mail.company.com > auth_debug = yes > auth_failure_delay = 10 secs > auth_master_user_separator = * > auth_mechanisms = plain login > auth_username_format = %Ln > auth_verbose = yes > auth_verbose_passwords = sha1 > default_vsz_limit = 512 M > deliver_log_format = %f | %s | msgid=%m: %$ > lda_mailbox_autocreate = yes > lda_mailbox_autosubscribe = yes > login_greeting = Dovecot ready. > login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c lport=%a > mail_gid = vmail > mail_location = maildir:/var/vmail/%Ln/Maildir:LAYOUT=fs:DIRNAME=mAildir > mail_plugins = acl lazy_expunge zlib quota mail_log notify > mail_shared_explicit_inbox = yes > mail_uid = vmail > managesieve_notify_capability = mailto > managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave > namespace { > list = children > location = maildir:/var/vmail/%%u/Maildir:LAYOUT=fs:DIRNAME=mAildir:INDEX=/var/vmail/%u/shared/%%u > prefix = shared/%%n/ > separator = / > subscriptions = no > type = shared > } > namespace inbox { > inbox = yes > location = > mailbox "Deleted items" { > special_use = \Trash > } > mailbox Drafts { > special_use = \Drafts > } > mailbox Junk { > special_use = \Junk > } > mailbox Sent { > special_use = \Sent > } > mailbox "Sent items" { > special_use = \Sent > } > mailbox Trash { > special_use = \Trash > } > mailbox inbox { > auto = subscribe > } > prefix = > separator = / > type = private > } > passdb { > args = /etc/dovecot/deny.imap > deny = yes > driver = passwd-file > } > passdb { > args = /etc/dovecot/master-users > driver = passwd-file > master = yes > } > passdb { > args = /etc/dovecot/dovecot-ldap.conf.ext > driver = ldap > result_failure = return-fail > } > plugin { > acl = vfile > acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db > mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename append > mail_log_fields = uid box msgid from subject > quota = maildir > quota_rule = ?:storage=5G > quota_rule2 = Trash:storage=+100M > quota_warning = storage=97%% quota-warning 97 %u > quota_warning2 = storage=95%% quota-warning 95 %u > quota_warning3 = storage=90%% quota-warning 90 %u > quota_warning4 = storage=85%% quota-warning 85 %u > quota_warning5 = storage=80%% quota-warning 80 %u > quota_warning6 = -storage=100%% quota-warning below %u > sieve = ~/.dovecot.sieve > sieve_default = /var/lib/dovecot/default.sieve > sieve_dir = ~/sieve > } > protocols = imap lmtp sieve > service auth { > unix_listener /var/spool/postfix/private/auth { > mode = 0666 > } > unix_listener auth-userdb { > group = vmail > mode = 0666 > user = vmail > } > } > service imap-login { > process_limit = 500 > process_min_avail = 2 > } > service quota-warning { > executable = script /usr/local/bin/quota-warning.sh > unix_listener quota-warning { > user = vmail > } > user = dovecot > } > service stats { > unix_listener stats-reader { > group = vmail > mode = 0660 > user = vmail > } > unix_listener stats-writer { > group = vmail > mode = 0660 > user = vmail > } > } > shutdown_clients = no > ssl = required > ssl_cert = </etc/ssl/letsencrypt/fullchain.pem > ssl_cipher_list = ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 > ssl_dh = # hidden, use -P to show it > ssl_key = # hidden, use -P to show it > ssl_min_protocol = TLSv1.2 > userdb { > args = uid=vmail gid=vmail home=/var/vmail/%n allow_all_users=yes > driver = static > } > userdb { > args = /etc/dovecot/dovecot-ldap.conf.ext > driver = ldap > } > verbose_proctitle = yes > protocol lda { > mail_plugins = acl lazy_expunge zlib quota mail_log notify sieve quota > } > protocol imap { > imap_max_line_length = 2 M > mail_max_userip_connections = 40 > mail_plugins = acl lazy_expunge zlib quota mail_log notify imap_quota imap_acl > }

2 5

dovecot-2.3.17: "Panic: file ioloop.c: line 865"
by Piper Andreas 14 Dec '21

14 Dec '21

Hello, since the upgrade from dovecot-2.3.16 to 2.3.17 I get 'Panic'-errors in the system-log of my replicator hosts. See below for log messages, doveconf-output and gdb-backtrace. Storage filesystem is ZFS. The error seems to be correlated with exactly one user-mailbox, this user is repeatedly noted as 'failed' in replication status, although replication of this mailbox seems to work, as the mailbox status shows always the identical size on both replicators. The error can be produced by forcing replication of this individual mailbox. Is there anything I can do to repair this mailbox? Thanks for any hints, Andreas Example log-messages: Nov 11 07:17:50 vhrz311 dovecot: doveadm(119455): Error: write(<local>) failed: Timed out after 60 seconds Nov 11 07:17:50 vhrz311 dovecot: doveadm(119455): Panic: file ioloop.c: line 865 (io_loop_destroy): assertion failed: (ioloop == cur rent_ioloop) Nov 11 07:17:50 vhrz311 dovecot: doveadm(119455): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7 f4e59419182] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f4e5941929e] -> /usr/lib/dovecot/libdovecot.so.0(+0xf8a5e) [0x7f4e59427a5e] -> /usr/lib/dovecot/libdovecot.so.0(+0xf8b01) [0x7f4e59427b01] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f 4e593744a7] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_destroy+0x2dc) [0x7f4e5944121c] -> dovecot/doveadm-server(+0x46fb6) [0x563d0 150ffb6] -> dovecot/doveadm-server(doveadm_print+0x27) [0x563d01508fb7] -> dovecot/doveadm-server(+0x2b427) [0x563d014f4427] -> dove cot/doveadm-server(+0x2da44) [0x563d014f6a44] -> dovecot/doveadm-server(doveadm_cmd_ver2_to_mail_cmd_wrapper+0x2cf) [0x563d014f7c6f] -> dovecot/doveadm-server(doveadm_cmd_run_ver2+0x43b) [0x563d01508c1b] -> dovecot/doveadm-server(+0x44612) [0x563d0150d612] -> /usr /lib/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7f4e594406d9] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal +0x134) [0x7f4e59442034] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x50) [0x7f4e594407e0] -> /usr/lib/dovecot/libdovec ot.so.0(io_loop_run+0x38) [0x7f4e59440a18] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f4e593a6a23] -> dovecot/ doveadm-server(main+0x102) [0x563d014e6922] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7f4e58bc1bf7] -> dovecot/d oveadm-server(_start+0x2a) [0x563d014e69aa] Nov 11 07:17:50 vhrz311 dovecot: doveadm(119455): Fatal: master: service(doveadm): child 119455 killed with signal 6 (core dumped) 'doveconf -n': # 2.3.17 (e2aa53df5b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.17 (054dddfa) # OS: Linux 4.15.0-162-generic x86_64 Ubuntu 18.04.6 LTS # Hostname: vhrz311.HRZ.Uni-Marburg.DE auth_cache_negative_ttl = 0 auth_cache_size = 10 M auth_master_user_separator = * auth_worker_max_count = 1024 base_dir = /var/run/dovecot/ default_client_limit = 10000 default_vsz_limit = 6 G doveadm_password = # hidden, use -P to show it doveadm_port = 12345 first_valid_gid = 10000 first_valid_uid = 10000 imap_max_line_length = 640 k last_valid_gid = 10000 last_valid_uid = 10000 mail_attribute_dict = file:%h/mdbox/dovecot-attributes mail_gid = 10000 mail_location = mdbox:%h/mdbox mail_plugins = " mail_log notify zlib notify replication" mail_privileged_group = mail mail_uid = 10000 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext namespace inbox { hidden = no inbox = yes list = yes location = prefix = separator = / subscriptions = yes type = private } passdb { args = /etc/dovecot.deny deny = yes driver = passwd-file } passdb { args = /etc/dovecot/private/passwd.masterusers driver = passwd-file master = yes } passdb { args = /etc/dovecot/dovecot-ldap.hrz.conf.ext driver = ldap name = passdb_ldap_hrz } passdb { args = /etc/dovecot/dovecot-ldap.staff.conf.ext driver = ldap name = passdb_ldap_staff } passdb { args = /etc/dovecot/dovecot-ldap.students.conf.ext driver = ldap name = passdb_ldap_students } plugin { mail_replica = tcp:172.25.1.95 sieve = file:~/sieve;active=~/.dovecot.sieve sieve_default = /var/lib/dovecot/default.sieve sieve_max_actions = 55 sieve_max_redirects = 50 } pop3_uidl_format = %08Xv%08Xu postmaster_address = postmaster(a)hrz.uni-marburg.de protocols = imap pop3 lmtp sieve replication_dsync_parameters = -d -n INBOX -l 30 -U replication_max_conns = 20 service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } } service auth-worker { user = $default_internal_user } service auth { client_limit = 10000 } service config { process_min_avail = 8 } service doveadm { inet_listener { port = 12345 } vsz_limit = 6 G } service imap-login { process_min_avail = 64 service_count = 0 } service imap { process_limit = 8192 } service lmtp { inet_listener lmtp { port = 24 } } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 8 service_count = 0 } service pop3-login { process_min_avail = 8 service_count = 0 } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 user = vmail } } service submission-login { service_count = 0 } ssl = required ssl_ca = </etc/ssl/certs/umr-chain.pem ssl_cert = </etc/ssl/certs/vhrz311.hrz.uni-marburg.de.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_require_crl = no userdb { args = /etc/dovecot/dovecot-ldap-userdb.conf.ext driver = ldap name = userdb_ldap } protocol imap { imap_metadata = yes mail_max_userip_connections = 25 mail_plugins = " mail_log notify zlib notify replication imap_zlib" } protocol lmtp { mail_plugins = " mail_log notify zlib notify replication sieve" } gdb: gdb /usr/lib/dovecot/doveadm-server /var/vmail/system-cores/core GNU gdb (Ubuntu 8.1.1-0ubuntu1) 8.1.1 Copyright (C) 2018 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-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/lib/dovecot/doveadm-server...(no debugging symbols found)...done. [New LWP 119455] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `dovecot/doveadm-server'. Program terminated with signal SIGABRT, Aborted. #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 51 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) bt #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 #1 0x00007f4e58be0921 in __GI_abort () at abort.c:79 #2 0x00007f4e59427a11 in ?? () from /usr/lib/dovecot/libdovecot.so.0 #3 0x00007f4e59427b01 in ?? () from /usr/lib/dovecot/libdovecot.so.0 #4 0x00007f4e593744a7 in i_panic () from /usr/lib/dovecot/libdovecot.so.0 #5 0x00007f4e5944121c in io_loop_destroy () from /usr/lib/dovecot/libdovecot.so.0 #6 0x0000563d0150ffb6 in ?? () #7 0x0000563d01508fb7 in doveadm_print () #8 0x0000563d014f4427 in ?? () #9 0x0000563d014f6a44 in ?? () #10 0x0000563d014f7c6f in doveadm_cmd_ver2_to_mail_cmd_wrapper () #11 0x0000563d01508c1b in doveadm_cmd_run_ver2 () #12 0x0000563d0150d612 in ?? () #13 0x00007f4e594406d9 in io_loop_call_io () from /usr/lib/dovecot/libdovecot.so.0 #14 0x00007f4e59442034 in io_loop_handler_run_internal () from /usr/lib/dovecot/libdovecot.so.0 #15 0x00007f4e594407e0 in io_loop_handler_run () from /usr/lib/dovecot/libdovecot.so.0 #16 0x00007f4e59440a18 in io_loop_run () from /usr/lib/dovecot/libdovecot.so.0 #17 0x00007f4e593a6a23 in master_service_run () from /usr/lib/dovecot/libdovecot.so.0 #18 0x0000563d014e6922 in main ()

4 5