- dovecot - dovecot.org

2.3.1/0.5.1?
by Larry Rosenman 07 Feb '18

07 Feb '18

Timo & Company, There have been a ton of fixes since 2.3.0. Is there a 2.3.1 of Dovecot and 0.5.1 of pigeonhole on the near horizon? Thanks! (Your FreeBSD Port Maintainer for Pigeonhole) -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 (c) E-Mail: larryrtx(a)gmail.com US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106

2 1

dovecot-2.22.33.2, segfault on empty emails
by Marcin Mirosław 07 Feb '18

07 Feb '18

Hello! I'm using maildir format with zlib_save=bz2. Here is the way how I generate empty mails and this leads to segfault: create empty message: # echo -n "" | /usr/libexec/dovecot/dovecot-lda -d marcin(a)mejor.pl this creates empy email in maildir (size 14B): # ls -l 1518011524.M96165P15900.jowisz\,S\=0\,W\=0\:2\, -rwxrw----+ 1 mail mail 14 Feb 7 14:52 '1518011524.M96165P15900.jowisz,S=0,W=0:2,' # file 1518011524.M96165P15900.jowisz\,S\=0\,W\=0\:2\, 1518011524.M96165P15900.jowisz,S=0,W=0:2,: bzip2 compressed data, block size = 200k next I'm accesing to Inbox, deleting mail using Thunderbird. Since message is moved to Trash I'm getting segfaults, backtrace: Reading symbols from /usr/libexec/dovecot/imap...Reading symbols from /usr/lib64/debug//usr/libexec/dovecot/imap.debug...done. done. [New LWP 16520] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `dovecot/imap'. Program terminated with signal SIGABRT, Aborted. #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 51 } (gdb) #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 #1 0x00007f744769e12a in __GI_abort () at abort.c:89 #2 0x00007f7447adab79 in default_fatal_finish (type=LOG_TYPE_PANIC, status=status@entry=0) at failures.c:201 #3 0x00007f7447adacd3 in i_internal_fatal_handler (ctx=0x7ffc16d911e0, format=<optimized out>, args=<optimized out>) at failures.c:670 #4 0x00007f7447a5108c in i_panic (format=format@entry=0x7f7447e9ed40 "file %s: line %d (%s): assertion failed: (%s)") at failures.c:275 #5 0x00007f7447e85108 in mail_index_transaction_get_uid (t=t@entry=0x55a2a17c3c30, seq=<optimized out>) at mail-index-transaction-finish.c:185 #6 0x00007f7447e8517a in mail_index_convert_to_uids (t=t@entry=0x55a2a17c3c30, array=array@entry=0x55a2a17e2c90) at mail-index-transaction-finish.c:205 #7 0x00007f7447e858df in mail_index_transaction_convert_to_uids (t=0x55a2a17c3c30) at mail-index-transaction-finish.c:313 #8 mail_index_transaction_finish (t=t@entry=0x55a2a17c3c30) at mail-index-transaction-finish.c:345 #9 0x00007f7447e8b783 in mail_index_transaction_commit_real (commit_size_r=0x7ffc16d91490, t=0x55a2a17c3c30) at mail-index-transaction.c:197 #10 mail_index_transaction_commit_v (t=<optimized out>, result_r=0x7ffc16d91480) at mail-index-transaction.c:239 #11 0x00007f7447e8be4e in mail_index_transaction_commit_full (_t=_t@entry=0x7ffc16d914d0, result_r=result_r@entry=0x7ffc16d91480) at mail-index-transaction.c:298 #12 0x00007f7447e8bf0b in mail_index_transaction_commit (t=t@entry=0x7ffc16d914d0) at mail-index-transaction.c:272 #13 0x00007f7447e71bef in mail_cache_set_seq_corrupted_reason (cache_view=cache_view@entry=0x55a2a17cf140, seq=362, reason=<optimized out>) at mail-cache.c:71 #14 0x00007f7447dd0d34 in mail_set_mail_cache_corrupted (mail=0x55a2a17d7118, fmt=0x7f7447eb1bab "Broken %s in mailbox %s: %s") at mail-storage.c:2828 #15 0x00007f7447dfb88a in maildir_mail_set_cache_corrupted_reason (_mail=0x55a2a17d7118, field=MAIL_FETCH_PHYSICAL_SIZE, reason=0x55a2a1706678 "read(/dane/domeny/mejor.pl/mail/marcin/.maildir/.Trash/tmp/1518011650.M572516P16520.jowisz) failed: Cached message size smaller than expected (0 < 14, box=Trash, UID=0)") at maildir-mail.c:770 #16 0x00007f7447e6ac52 in i_stream_mail_set_size_corrupted (mstream=mstream@entry=0x55a2a18014f0, size=size@entry=14) at istream-mail.c:95 #17 0x00007f7447e6ae5b in i_stream_mail_read (stream=0x55a2a18014f0) at istream-mail.c:121 #18 0x00007f7447ae9c84 in i_stream_read (stream=stream@entry=0x55a2a1801560) at istream.c:174 #19 0x00007f7447aeaa3d in i_stream_read_data (stream=0x55a2a1801560, data_r=data_r@entry=0x7ffc16d917a8, size_r=size_r@entry=0x7ffc16d917b0, threshold=threshold@entry=1) at istream.c:569 #20 0x00007f7447abc27f in message_parse_header_next (ctx=0x55a2a17c04c0, hdr_r=hdr_r@entry=0x7ffc16d91810) at message-header-parser.c:84 #21 0x00007f7447abcc9f in message_parse_header (input=<optimized out>, hdr_size=hdr_size@entry=0x55a2a17d7398, flags=flags@entry=(MESSAGE_HEADER_PARSER_FLAG_SKIP_INITIAL_LWSP | MESSAGE_HEADER_PARSER_FLAG_DROP_CR), callback=callback@entry=0x7f7447e50210 <index_mail_parse_header_cb>, context=context@entry=0x55a2a17d7118) at message-header-parser.c:391 #22 0x00007f7447e504f4 in index_mail_parse_headers (mail=mail@entry=0x55a2a17d7118, headers=0x55a2a1800f08, reason=reason@entry=0x55a2a1706618 "header Message-ID (Mail not cached, highest cached seq=361 uid=289064: reset_id=1312894688)") at index-mail-headers.c:460 #23 0x00007f7447e50b10 in index_mail_get_raw_headers (mail=mail@entry=0x55a2a17d7118, field=field@entry=0x7f744476ba33 "Message-ID", value_r=value_r@entry=0x7ffc16d91960) at index-mail-headers.c:659 #25 0x00007f7447dbc1ac in mail_get_first_header (mail=mail@entry=0x55a2a17d7118, field=field@entry=0x7f744476ba33 "Message-ID", value_r=value_r@entry=0x7ffc16d919e0) at mail.c:191 #26 0x00007f744476aaf9 in mail_log_append_mail_header (str=str@entry=0x55a2a17064f8, mail=mail@entry=0x55a2a17d7118, name=name@entry=0x7f744476ba5c "msgid", header=header@entry=0x7f744476ba33 "Message-ID") at mail-log-plugin.c:189 #27 0x00007f744476b501 in mail_log_append_mail_message_real (desc=0x55a2a17064d0 "copy from INBOX", event=MAIL_LOG_EVENT_COPY, mail=0x55a2a17d7118, ctx=0x55a2a17cf6e8) at mail-log-plugin.c:275 #28 mail_log_append_mail_message (ctx=0x55a2a17cf6e8, mail=0x55a2a17d7118, event=MAIL_LOG_EVENT_COPY, desc=0x55a2a17064d0 "copy from INBOX") at mail-log-plugin.c:344 #29 0x00007f7446e414db in notify_contexts_mail_copy (src=src@entry=0x55a2a17d18e8, dst=0x55a2a17d7118) at notify-plugin.c:75 #30 0x00007f7446e42cb5 in notify_copy (ctx=0x55a2a17d6108, mail=0x55a2a17d18e8) at notify-storage.c:106 #31 0x00007f7447259794 in quota_copy (ctx=0x55a2a17d6108, mail=0x55a2a17d18e8) at quota-storage.c:283 #32 0x00007f7447dceb40 in mailbox_copy_int (_ctx=<optimized out>, mail=mail@entry=0x55a2a17d18e8) at mail-storage.c:2477 #33 0x00007f7447dcedac in mailbox_move (_ctx=<optimized out>, mail=0x55a2a17d18e8) at mail-storage.c:2515 #34 0x000055a2a002668d in fetch_and_copy (copy_count_r=<synthetic pointer>, src_uidset_r=<synthetic pointer>, search_args=<optimized out>, src_trans_r=0x7ffc16d91c48, t=0x55a2a17ce880, move=true, cmd=0x55a2a17488c8) at cmd-copy.c:69 #35 cmd_copy_full (cmd=0x55a2a17488c8, move=true) at cmd-copy.c:139 #36 0x000055a2a003569c in command_exec (cmd=cmd@entry=0x55a2a17488c8) at imap-commands.c:200 #37 0x000055a2a0033751 in client_command_input (cmd=<optimized out>, cmd@entry=0x55a2a17488c8) at imap-client.c:1088 #38 0x000055a2a003388f in client_command_input (cmd=<optimized out>) at imap-client.c:1148 #39 0x000055a2a0033c85 in client_handle_next_command (remove_io_r=<synthetic pointer>, client=0x55a2a1746908) at imap-client.c:1190 #40 client_handle_input (client=0x55a2a1746908) at imap-client.c:1202 #41 0x000055a2a0034245 in client_input (client=0x55a2a1746908) at imap-client.c:1249 #42 0x00007f7447af74e9 in io_loop_call_io (io=0x55a2a17487c0) at ioloop.c:600 #43 0x00007f7447af9297 in io_loop_handler_run_internal (ioloop=ioloop@entry=0x55a2a170e990) at ioloop-epoll.c:223 #44 0x00007f7447af75e3 in io_loop_handler_run (ioloop=ioloop@entry=0x55a2a170e990) at ioloop.c:649 #45 0x00007f7447af77e0 in io_loop_run (ioloop=0x55a2a170e990) at ioloop.c:624 #46 0x00007f7447a5e426 in master_service_run (service=0x55a2a170e830, callback=<optimized out>) at master-service.c:719 #47 0x00005 Marcin

1 0

Bug in dovecot 2.3 virtual plugin
by Jakobus Schürz 07 Feb '18

07 Feb '18

Hi there! I compiled dovecot 2.3 from git. Because there is already a bug in virtual-plugin, and i hoped, it get fixed... but it doesn't. So this is the error-message from the log Jän 03 16:27:08 aldebaran dovecot[26460]: indexer-worker(jakob)<26476><qQ6g1+BhIJvAqAAO:sjYhMTH2TFpsZwAAk1Mx3g>: Panic: file unichar.c: line 160 (uni_ucs4_to_utf8_c): assertion failed: (uni_is_valid_ucs4(chr)) Jän 03 16:27:08 aldebaran dovecot[26460]: indexer-worker(jakob)<26476><qQ6g1+BhIJvAqAAO:sjYhMTH2TFpsZwAAk1Mx3g>: Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0xc6021) [0x7f8299f7a021] -> /usr/local/lib/dovecot/libdovecot.so.0(+0xc60ed) [0x7f8299f7a0ed] -> /usr/local/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f8299eec481] -> /usr/local/lib/dovecot/libdovecot.so.0(uni_ucs4_to_utf8_c+0xa0) [0x7f8299fb1500] -> /usr/local/lib/dovecot/libdovecot.so.0(+0xa75e0) [0x7f8299f5b5e0] -> /usr/local/lib/dovecot/libdovecot.so.0(mail_html2text_more+0xc5) [0x7f8299f5b775] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(+0xcfcc) [0x7f82990aefcc] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(fts_parser_more+0x27) [0x7f82990aeca7] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(fts_build_mail+0x5e9) [0x7f82990acc39] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(+0x1122d) [0x7f82990b322d] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0x916a) [0x7f82958e316a] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(+0x10f5d) [0x7f82990b2f5d] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0x916a) [0x7f82958e316a] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(+0x10f5d) [0x7f82990b2f5d] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mail_precache+0x2e) [0x7f829a2641be] -> dovecot/indexer-worker [jakob Synoptic/AKTUELL](+0x2533) [0x562227882533] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7f8299f91bf9] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x109) [0x7f8299f93499] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x52) [0x7f8299f91d02] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f8299f91f18] -> /usr/local/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f8299f0f1e3] -> dovecot/indexer-worker [jakob Synoptic/AKTUELL](main+0xe7) [0x562227881f47] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f8299b352b1] -> dovecot/indexer-worker [jakob Synoptic/AKTUELL](_start+0x2a) [0x56222788201a] Jän 03 16:27:08 aldebaran dovecot[26460]: indexer: Error: Indexer worker disconnected, discarding 1 requests for jakob Jän 03 16:27:08 aldebaran dovecot[26460]: imap(jakob)<26472><qQ6g1+BhIJvAqAAO>: Error: indexer failed to index mailbox Synoptic/AKTUELL Jän 03 16:27:08 aldebaran dovecot[26460]: indexer-worker(jakob)<26476><qQ6g1+BhIJvAqAAO:sjYhMTH2TFpsZwAAk1Mx3g>: Fatal: master: service(indexer-worker): child 26476 killed with signal 6 (core dumps disabled) Jän 03 16:27:09 aldebaran dovecot[26460]: indexer-worker(jakob)<26484><qQ6g1+BhIJvAqAAO:J6mUIEz2TFp0ZwAAk1Mx3g>: Error: lucene index /var/lib/dovecot/db/indexes/Maildir/jakob/lucene-indexes: IndexWriter() failed (#1): Lock obtain timed out Jän 03 16:27:10 aldebaran dovecot[26460]: indexer-worker(jakob)<26484><qQ6g1+BhIJvAqAAO:J6mUIEz2TFp0ZwAAk1Mx3g>: Error: Mailbox Synoptic/AKTUELL: Transaction commit failed: BUG: Unknown internal error (attempted to index 1488 messages (UIDs 15214..16775)) Jän 03 16:27:10 aldebaran dovecot[26460]: imap(jakob)<26480><lP5r2OBhKJvAqAAO>: Error: indexer failed to index mailbox Synoptic/AKTUELL Jän 03 16:27:11 aldebaran dovecot[26460]: imap(jakob)<26472><qQ6g1+BhIJvAqAAO>: Panic: file mail-index.c: line 793 (mail_index_close): assertion failed: (index->open_count > 0) Jän 03 16:27:11 aldebaran dovecot[26460]: imap(jakob)<26472><qQ6g1+BhIJvAqAAO>: Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0xc6021) [0x7fb0fbd3a021] -> /usr/local/lib/dovecot/libdovecot.so.0(+0xc60ed) [0x7fb0fbd3a0ed] -> /usr/local/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fb0fbcac481] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0xf39a8) [0x7fb0fc0d99a8] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0xd92d1) [0x7fb0fc0bf2d1] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0xd9363) [0x7fb0fc0bf363] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(index_storage_mailbox_free+0x9) [0x7fb0fc0b0f39] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0xd05a4) [0x7fb0fc0b65a4] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_free+0x19) [0x7fb0fc030c99] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0xabdc) [0x7fb0f729bbdc] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0xacb9) [0x7fb0f729bcb9] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_close+0x1a) [0x7fb0fc030c0a] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0xac60) [0x7fb0f729bc60] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0xacb9) [0x7fb0f729bcb9] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_close+0x1a) [0x7fb0fc030c0a] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_free+0x13) [0x7fb0fc030c93] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](imap_client_close_mailbox+0x5b) [0x56514d31305b] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](cmd_logout+0x35) [0x56514d309485] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](command_exec+0x64) [0x56514d312ca4] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](+0x1b0b2) [0x56514d3110b2] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](+0x1b13c) [0x56514d31113c] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](client_handle_input+0x1a5) [0x56514d311565] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](client_input+0x82) [0x56514d311be2] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7fb0fbd51bf9] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x109) [0x7fb0fbd53499] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x52) [0x7fb0fbd51d02] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fb0fbd51f18] -> /usr/local/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fb0fbccf1e3] Jän 03 16:27:11 aldebaran dovecot[26460]: imap(jakob)<26472><qQ6g1+BhIJvAqAAO>: Fatal: master: service(imap): child 26472 killed with signal 6 (core dumps disabled) I get this errors when i open or search in a virtual folder. i have enabled fts_lucene. My config is: # dovecot -n # 2.3.devel (393bfbea8): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.0.rc1 (d68c23a1) # OS: Linux 4.13.0-trunk-amd64 x86_64 Debian 9.3 btrfs auth_mechanisms = plain login cram-md5 digest-md5 auth_socket_path = /usr/local/var/run/dovecot/auth-userdb first_valid_uid = 1000 imap_capability = +XDOVECOT imap_client_workarounds = tb-extra-mailbox-sep lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes listen = *, ::1 login_trusted_networks = 127.0.0.1/8 192.168.0.0/24 192.168.1.0/24 172.17.0.0/24 172.18.0.0/24 mail_gid = vmail mail_home = /var/mail/%u mail_location = maildir:/var/mail/%u/Maildir:LAYOUT=fs:INDEX=/var/lib/dovecot/db/indexes/Maildir/%u:INDEXPVT=/var/lib/dovecot/db/indexes/Maildir/%u:CONTROL=/var/lib/dovecot/db/control/Maildir/%u mail_plugins = zlib quota acl listescape mail_log notify virtual fts fts_lucene mail_privileged_group = vmail mail_server_admin = mailto:jakob@xundeenergie.at 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 index ihave duplicate mime foreverypart extracttext namespace { list = children location = maildir:/var/mail/public/:LAYOUT=fs:INDEX=/var/lib/dovecot/db/indexes/public/%u:INDEXPVT=/var/lib/dovecot/db/indexes/public/%u prefix = Roseggergasse/ separator = / subscriptions = no type = public } namespace Geteilt { hidden = no inbox = no list = children location = maildir:/var/mail/%%u/Maildir:LAYOUT=fs:INDEXPVT=/var/lib/dovecot/db/indexes/shared/%u/%%u:INDEX=/var/lib/dovecot/db/indexes/shared/%u/%%u prefix = Geteilt/%%n/ separator = / subscriptions = no type = shared } namespace Mailarchiv { hidden = no inbox = no list = children location = maildir:/var/mail/mailarchiv/%u/:LAYOUT=fs:INDEX=/var/lib/dovecot/db/indexes/mailarchiv/%u:INDEXPVT=/var/lib/dovecot/db/indexes/mailarchiv/%u mailbox incoming { auto = create } mailbox outgoing { auto = create } prefix = Mailarchiv/ separator = / subscriptions = no type = private } namespace Real { hidden = yes list = no location = virtual:/var/mail/real:INDEX=/var/lib/dovecot/db/indexes/real/%u prefix = Real/ separator = / subscriptions = no } namespace Synoptic { hidden = no list = children location = virtual:/var/mail/virtual:INDEX=/var/lib/dovecot/db/indexes/virtual/%u mailbox INBOX/Archives { auto = no special_use = \Archive } mailbox INBOX/Drafts { auto = no special_use = \Drafts } mailbox INBOX/Entwürfe { auto = no special_use = \Drafts } mailbox INBOX/Junk { auto = no special_use = \Junk } mailbox INBOX/Sent { auto = no special_use = \Sent } mailbox INBOX/Spam { auto = no special_use = \Junk } prefix = Synoptic/ separator = / subscriptions = no } namespace inbox { hidden = no inbox = yes location = mailbox Archiv { auto = no special_use = \Archive } mailbox Archive { auto = no special_use = \Archive } mailbox Archives { auto = no special_use = \Archive } mailbox "Deleted Messages" { auto = no autoexpunge = 30 days special_use = \Trash } mailbox Drafts { auto = no special_use = \Drafts } mailbox Entwürfe { auto = no special_use = \Drafts } mailbox "Gelöschte Elemente" { auto = no autoexpunge = 30 days special_use = \Trash } mailbox "Gelöschte Objekte" { auto = no autoexpunge = 30 days special_use = \Trash } mailbox Gesendet { auto = no special_use = \Sent } mailbox "Gesendete Elemente" { auto = no special_use = \Sent } mailbox "Gesendete Objekte" { auto = no special_use = \Sent } mailbox Important { auto = no } mailbox Junk { auto = subscribe autoexpunge = 30 days special_use = \Junk } mailbox Mistkübel { auto = no autoexpunge = 30 days special_use = \Trash } mailbox Papierkorb { auto = no autoexpunge = 30 days special_use = \Trash } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox Spam { auto = no autoexpunge = 30 days special_use = \Junk } mailbox Synoptic/Alle { auto = no comment = All my messages special_use = \All } mailbox Trash { auto = no autoexpunge = 30 days special_use = \Trash } mailbox Wichtig { auto = create } prefix = INBOX/ separator = / subscriptions = no type = private } namespace subscriptions { hidden = yes list = no location = prefix = subscriptions = yes } passdb { args = scheme=CRYPT username_format=%u /usr/local/etc/dovecot/users driver = passwd-file } plugin { acl = vfile:/etc/dovecot/dovecot-acl:cache_secs=300 acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db fts = lucene fts_autoindex = yes fts_autoindex_max_recent_msgs = 80 fts_index_timeout = 90s fts_lucene = whitespace_chars=@. normalize no_snowball mail_home = /var/mail/%u setting_name = sieve, managedsieve sieve = file:/var/mail/%u/sieve/;active=/var/mail/%u/sieve/%u.sieve } postmaster_address = postmaster@localhost protocols = imap pop3 lmtp imap lmtp sieve pop3 sieve service anvil { unix_listener anvil-auth-penalty { mode = 00 } } service auth { unix_listener auth-client { group = vmail mode = 0666 user = Debian-exim } unix_listener auth-userdb { group = vmail mode = 0666 user = vmail } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } process_min_avail = 1 service_count = 0 } service imap { executable = imap postlogin process_limit = 1024 vsz_limit = 400 M } service lmtp { executable = lmtp -L user = vmail vsz_limit = 400 M } service postlogin { executable = script-login -d rawlog } ssl = required ssl_cert = </usr/local/etc/dovecot/dovecot.crt ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { args = username_format=%u /usr/local/etc/dovecot/users default_fields = home=/var/mail/%u driver = passwd-file } verbose_proctitle = yes protocol lmtp { auth_username_format = %n mail_plugins = zlib quota acl listescape mail_log notify virtual fts fts_lucene quota sieve acl } protocol lda { mail_plugins = zlib quota acl listescape mail_log notify virtual fts fts_lucene quota sieve acl } protocol imap { mail_max_userip_connections = 10 mail_plugins = zlib quota acl listescape mail_log notify virtual fts fts_lucene imap_quota imap_acl } The virtual Folder-definitions are: # find /var/mail/virtual/ /var/mail/real/ /var/mail/virtual/ /var/mail/virtual/GINBOX /var/mail/virtual/GINBOX/dovecot-virtual /var/mail/virtual/Neue /var/mail/virtual/Neue/dovecot-virtual /var/mail/virtual/Markierte /var/mail/virtual/Markierte/dovecot-virtual /var/mail/virtual/Ungelesene /var/mail/virtual/Ungelesene/dovecot-virtual /var/mail/virtual/Sent /var/mail/virtual/Sent/dovecot-virtual /var/mail/virtual/Drafts /var/mail/virtual/Drafts/dovecot-virtual /var/mail/virtual/Trash /var/mail/virtual/Trash/dovecot-virtual /var/mail/virtual/AKTUELL /var/mail/virtual/AKTUELL/dovecot-virtual /var/mail/virtual/Archives /var/mail/virtual/Archives/dovecot-virtual /var/mail/virtual/dovecot-acl-list /var/mail/virtual/WICHTIG /var/mail/virtual/WICHTIG/dovecot-virtual /var/mail/real/ /var/mail/real/Alle /var/mail/real/Alle/dovecot-virtual /var/mail/real/dovecot-acl-list /var/mail/real/einjahr /var/mail/real/einjahr/dovecot-virtual /var/mail/real/zweijahr /var/mail/real/zweijahr/dovecot-virtual /var/mail/real/dreijahr /var/mail/real/dreijahr/dovecot-virtual # cat /var/mail/virtual/AKTUELL/dovecot-virtual Real/Alle inthread refs younger 2592000 # cat /var/mail/real/Alle/dovecot-virtual !INBOX INBOX/* -INBOX/Trash -INBOX/Trash/* -INBOX/Archives -INBOX/Archives/* -INBOX/Drafts -INBOX/Drafts/* -INBOX/Junk -INBOX/Junk/* -INBOX/SYSTEM -INBOX/SYSTEM/* all The others are similar. Greez Jakob

5 12

Segmentation fault in "make check" test_istream_multiplex for 2.3.0 on Solaris Sparc
by Rainer Jung 07 Feb '18

07 Feb '18

Hi there, I get a crash when doing "make check" for version 2.3.0 on Solaris Sparc. The build was done with gcc 7.3.0. The crash happens in ioloop-poll.c line 181 when running test_istream_multiplex.c: #0 io_loop_handler_run_internal (ioloop=ioloop@entry=0x130dd0) at ioloop-poll.c:181 181 if (pollfd->revents != 0) { Due to the code 180 pollfd = &ctx->fds[ctx->fd_index[io->fd]]; 181 if (pollfd->revents != 0) { I can see in gdb, that io->fd is "-1", so using it as an array index doesn't make much sense: (gdb) print io->fd $2 = -1 and the resulting address of pollfd is not valid. The full io struct is: (gdb) print *io $3 = {io = {condition = IO_READ, source_filename = 0x8c680 "test-multiplex.c", source_linenum = 84, pending = false, callback = 0x33c14 <test_istream_multiplex_stream_read>, context = 0xc4b80 <test_channel+48>, ioloop = 0x130dd0, ctx = 0x0}, prev = 0xecfc0, next = 0xd3548, refcount = 1, fd = -1, istream = 0xd31e8} Full stack: [Current thread is 2 (Thread 1 (LWP 1))] (gdb) bt full #0 io_loop_handler_run_internal (ioloop=ioloop@entry=0x130dd0) at ioloop-poll.c:181 ctx = 0xd05b8 pollfd = 0x526cd8b0 tv = {tv_sec = 2147483, tv_usec = 0} io = 0xecd50 msecs = <optimized out> ret = 1 call = <optimized out> #1 0x000574a8 in io_loop_handler_run (ioloop=<optimized out>) at ioloop.c:666 No locals. #2 0x0005779c in io_loop_run (ioloop=0x130dd0) at ioloop.c:639 __func__ = "io_loop_run" #3 0x00033f7c in test_multiplex_stream () at test-multiplex.c:147 ioloop = 0x130dd0 fds = {6, 7} os = 0x0 is = 0x0 ichan1 = 0xd31e8 ochan1 = 0xd3470 io = 0xd34c8 ichan0 = 0x1b10e8 ochan0 = 0x1b1290 #4 test_multiplex () at test-multiplex.c:164 No locals. #5 0x0003e3d4 in test_run_named_funcs (tests=tests@entry=0x80444 <test_functions>, match=match@entry=0x7fd38 "") at test-common.c:255 _data_stack_cur_id = 2 i = <optimized out> #6 0x0003f1d8 in test_run_named_with_fatals (match=0x7fd38 "", tests=0x80444 <test_functions>, fatals=0x7fde0 <fatal_functions>) at test-common.c:337 No locals. #7 0x0001e024 in _start () I unfortunately don't know, why the fd field is "-1". Regards and thanks Rainer

2 1

New mail notification
by Matthew Allen 07 Feb '18

07 Feb '18

Hi, So I'm running dovecot 1.2.17 on Mac OSX using maildir in ~/Mail. After using getmail for a while to download my POP3 email and store it in the right place it started not working so I replaced it with a python script that I wrote. All was good for a while and then I stopped getting new mail notifications in my IMAP client. If I close the connection and restart the new mail shows up as !seen but no amount of re-selecting the folder will show the new mail while the connection is active. There is no untagged responses about new mail while the client is IDLEing. The client is InScribe (http://memecode.com/inscribe.php) but I doubt it's client specific. Seems to be server related. Now the python script in question just puts the .eml file in ~/Mail/tmp and then renames it to the ~/Mail/new folder. Does it need to do something else as well to make the notifications work? There aren't any error messages in the log. Just normal login history. If you can point me in the right direction that'd be appreciated. Regards Matthew Allen

1 0

Dovecot on GlusterFS via NFS is... strange.
by Frank Wall 07 Feb '18

07 Feb '18

Hi, I've discovered some interesting behaviour when running Dovecot on a GlusterFS volume (3.10) that is mounted via NFS 4.1 (ganesha NFS). First of all, using the usual settings for NFS storage seemed like an obvious choice for my setup (Dovecot 2.2.33.2, CentOS 7.4): mail_nfs_storage = yes mail_nfs_index = yes mail_fsync = always maildir_copy_with_hardlinks = yes mmap_disable = yes lock_method = dotlock (FWIW, I've been using these settings for many years on different NFS storages without any issues. Another instance of Dovecot 2.2.33 on FreeBSD 11.1 with a more traditional NFS storage is rock-solid.) SPOILER: These settings caused terrible issues. For example, when trying to clone a mailbox from an old server to this new Dovecot-on-GlusterFS setup (using imapsync), the following errors would show up frequently: Feb 6 16:44:53 dovecot: IMAP(user(a)example.com): Panic: file maildir-uidlist.c: line 1262 (maildir_uidlist_write_fd): assertion failed: (first_idx == 0) Feb 6 16:44:53 dovecot: IMAP(user(a)example.com): Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(+0x9f3de) [0x7f7b6b44f3de] -> /usr/lib64/dovecot/libdovecot.so.0(+0x9f4be) [0x7f7b6b44f4be] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f7b6b3e077c] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0x79605) [0x7f7b6b75b605] -> /usr/lib64/dovecot/libdovecot-storage.so.0(maildir_uidlist_sync_finish+0x1ac) [0x7f7b6b75d61c] -> /usr/lib64/dovecot/libdovecot-storage.so.0(maildir_uidlist_sync_deinit+0x98) [0x7f7b6b75da48] -> /usr/lib64/dovecot/libdovecot-storage.so.0(maildir_transaction_save_commit_pre+0x41f) [0x7f7b6b75483f] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xcccd0) [0x7f7b6b7aecd0] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mail_index_transaction_commit_full+0x9d) [0x7f7b6b7cb3cd] -> /usr/lib64/dovecot/libdovecot-storage.so.0(index_transaction_commit+0x107) [0x7f7b6b7af217] -> /usr/lib64/dovecot/lib10_quota_plugin.so(+0xe17c) [0x7f7b6a9ca17c] -> /usr/lib64/dovecot/lib01_acl_plugin.so(+0xda0a) [0x7f7b6abe0a0a] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_transaction_commit_get_changes+0x51) [0x7f7b6b72c161] -> dovecot/imap [user(a)example.com 10.0.0.1 APPEND](+0xf255) [0x55ca8238f255] -> dovecot/imap [user(a)example.com 10.0.0.1 APPEND](command_exec+0x5c) [0x55ca8239cf0c] -> dovecot/imap [user(a)example.com 10.0.0.1 APPEND](+0xe771) [0x55ca8238e771] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x52) [0x7f7b6b464cd2] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10f) [0x7f7b6b4663bf] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x3c) [0x7f7b6b464d6c] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f7b6b464f28] -> /usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f7b6b3eafa3] -> dovecot/imap [user(a)example.com 10.0.0.1 APPEND](main+0x333) [0x55ca8238e2e3] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f7b6b00ec05] -> dovecot/imap [user(a)example.com 10.0.0.1 APPEND](+0xe476) [0x55ca8238e476] Feb 6 16:44:53 dovecot: IMAP(user(a)example.com): Fatal: master: service(imap): child 84782 killed with signal 6 (core dumps disabled) Feb 6 16:44:56 dovecot: IMAP(user(a)example.com): Error: readdir(/data/mail/abc/default/.Foldername 01_ Foo 1234/new) failed: Unknown error 523 Yes, the folder name is "special" in this example. (I'm not sure if this readdir() error is actually related to the other issue.) So, this caused the imap process to die repeatedly and the user got disconnected many many times. In this state the mail services were not really usable. Side note: The NFS share was mounted by using the most conservative moint options I could think of: vers=4.1,rsize=131072,wsize=131072,nosharecache,noac,nordirplus,proto=tcp And if you're wondering: Yes, I'm using Dovecot director for IMAP and LMTP (currently running 3 VMs for Dovecot director and 3 VMs for Dovecot IMAP). Then the fun began... I've decided to change the following settings: mail_nfs_storage = no mail_nfs_index = no Re-created the maildir and restarted the imapsync copy process. Out of sudden the errors are gone! Now Dovecot is performing pretty well on my GlusterFS volume. Does this make any sense to anyone? Ciao - Frank

1 0

"make check" test-hash-method bus error (Sparc alignment)
by Rainer Jung 06 Feb '18

06 Feb '18

Hi there, when doing "make check" for a 2.3.0 build on Solaris Sparc I get a bus error due to an alignment issue. It seems the error is only happening during testing, because in the official API it was fixed in https://github.com/dovecot/core/commit/d8361cc8576d9ede93a037f9b96f2a3f9b7e… But the tests use hand written test vectors, that are not correctly aligned: ... hash method md4 (test vectors) ....................................... : ok hash method md5 (test vectors) ....................................... : ok /bin/ksh[2]: 24287 Bus Error(coredump) make[4]: *** [Makefile:2655: check-local] Error 1 gdb output: Program terminated with signal SIGBUS, Bus error. #0 sha1_loop (ctxt=0xffbff724, input=0x83908, len=3) at sha1.c:224 224 ctxt->c.b64[0] += copysiz * 8; (gdb) print &ctxt->c.b64[0] $1 = (uint64_t *) 0xffbff73c So the address of the 8 byte type is not divisible by 8 (Sparc alignment requirement). Full stack: (gdb) bt full #0 sha1_loop (ctxt=0xffbff724, input=0x83908, len=3) at sha1.c:224 input_c = 0x83908 "abc" gaplen = <optimized out> gapstart = <optimized out> off = 0 copysiz = 3 #1 0x00024eb0 in test_hash_methods_fips () at test-hash-method.c:338 n = 0 method = 0xc4e68 <hash_method_sha1> context = 0xffbff724 "gE#\001▒ͫ\211\230▒▒▒\020\062Tv▒▒▒▒" result = "▒9▒▒^kK\r2U▒▒\225`\030\220▒▒\a\t" i = 7 last_method = 0x839d0 "sha1" test_vectors = {{method = 0x838e0 "md4", input = 0x838e8, ilen = 0, rounds = 1, output = 0x838f0, olen = 16}, {method = 0x838e0 "md4", input = 0x83908, ilen = 3, rounds = 1, output = 0x83910, olen = 16}, {method = 0x838e0 "md4", input = 0x83928, ilen = 62, rounds = 1, output = 0x83968, olen = 16}, {method = 0x83980 "md5", input = 0x838e8, ilen = 0, rounds = 1, output = 0x83988, olen = 16}, {method = 0x83980 "md5", input = 0x83908, ilen = 3, rounds = 1, output = 0x839a0, olen = 16}, { method = 0x83980 "md5", input = 0x83928, ilen = 62, rounds = 1, output = 0x839b8, olen = 16}, {method = 0x839d0 "sha1", input = 0x838e8, ilen = 0, rounds = 1, output = 0x839d8, olen = 20}, {method = 0x839d0 "sha1", input = 0x83908, ilen = 3, rounds = 1, output = 0x839f0, olen = 20}, {method = 0x839d0 "sha1", input = 0x83a08, ilen = 56, rounds = 1, output = 0x83a48, olen = 20}, {method = 0x83a60 "sha3-256", input = 0x838e8, ilen = 0, rounds = 1, output = 0x83a70, olen = 32}, {method = 0x83a60 "sha3-256", input = 0x83a98, ilen = 135, rounds = 1, output = 0x83b20, olen = 32}, {method = 0x83a60 "sha3-256", input = 0x83b48, ilen = 200, rounds = 1, output = 0x83c18, olen = 32}, {method = 0x83a60 "sha3-256", input = 0x83c40, ilen = 1, rounds = 200, output = 0x83c18, olen = 32}, { method = 0x83c48 "sha3-512", input = 0x838e8, ilen = 0, rounds = 1, output = 0x83c58, olen = 64}, {method = 0x83c48 "sha3-512", input = 0x83a98, ilen = 135, rounds = 1, output = 0x83ca0, olen = 64}, {method = 0x83c48 "sha3-512", input = 0x83b48, ilen = 200, rounds = 1, output = 0x83ce8, olen = 64}, { method = 0x83c48 "sha3-512", input = 0x83c40, ilen = 1, rounds = 200, output = 0x83ce8, olen = 64}} #2 0x0003e3e0 in test_run_named_funcs (tests=tests@entry=0x80434 <test_functions>, match=match@entry=0x7fd40 "") at test-common.c:255 _data_stack_cur_id = 2 i = <optimized out> #3 0x0003f1e4 in test_run_named_with_fatals (match=0x7fd40 "", tests=0x80434 <test_functions>, fatals=0x7fde8 <fatal_functions>) at test-common.c:337 No locals. #4 0x0001e024 in _start () Unaligned data comes from file src/lib/test-hash-method.c: ... 53 static void test_hash_methods_fips() { 54 const char *last_method = NULL; 55 56 struct { 57 const char *method; 58 const void *input; 59 size_t ilen; 60 size_t rounds; 61 const void *output; 62 size_t olen; 63 } test_vectors[] = 64 { ... 115 { "sha1", 116 "", 117 0, 118 1, 119 "\xda\x39\xa3\xee\x5e\x6b\x4b\x0d" 120 "\x32\x55\xbf\xef\x95\x60\x18\x90" 121 "\xaf\xd8\x07\x09", 122 160 / 8 123 }, ... etc. The input data needs to be 8 byte aligned but is just a void *. Thanks and regards, Rainer

1 0

Dovecot and /dev/rand
by Michael A. Peters 06 Feb '18

06 Feb '18

There's a (2014 I think) patch in dovecot rpm for Red Hat / Fedora ecosystem that was last update with 2.2.9 (patch last updated for that release) I want to know if the problem it solves still exists in 2.3.x branch. The patch is called "dovecot-2.2.9-nodevrand.patch" and is attached. It allegedly addresses an issue with installation in chroot that does not have /dev/random Red Hat bugzilla 1026790 I am apparently not authorized to see that bug so I don't know much about it, but with many code changes in 2.3.0 from 2.2.x I am wondering if the alleged issue was solved a different way or if the patch should be ported to 2.3.0 when packaged for people who might trigger it. Thanks.

1 0

Does Dovecot LDAP auth support LDAP referral
by Xuan Jia 06 Feb '18

06 Feb '18

We using Dovecot with LDAP. From the beginning, we using GC LDAP query with port 3268 for email accounts. For example, user1(a)our-organization.org (in the USA) with "base = dc=our-organization, dc=org" works fine. But refer to this document: https://wiki2.dovecot.org/AuthDatabase/LDAP When we change the LDAP from 3268 to 389 and with TLS, the base should be changed like this: "base = ou=usa, dc=our-organization, dc=org" But if the user (user2) located in United Kingdom (ou=gbr), the user can not login. When we debug with ldapsearch: ldapsearch -ZZ -v -h dc.our-organization.org -p 389 -D 'cn=auth_user,ou=usa,dc=our-organization,dc=org' -W -b 'dc=our-organization, dc=org' '(userPrincipalName=user2(a)our-organization.org)' It can return user2 information with some "numReferences". But in Dovecot, if "base = dc=our-organization, dc=org" it only reported auth error with timeout. Here are the config: # 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (fed8554) # OS: Linux 3.16.0-4-amd64 x86_64 Debian 9.3 auth_verbose = yes dsync_remote_cmd = ssh -l%{login} %{host} doveadm dsync-server -u%u -l%{lock_timeout} -n%{namespace} imap_id_send = imapc_user = %u import_environment = TZ listen = * login_log_format_elements = user=u> method=%m rip=%r lip=%l mpid=%e %c mail_shared_explicit_inbox = yes 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 { location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-ldap-userdb.conf.ext driver = ldap } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = " imap sieve" service managesieve-login { inet_listener sieve { port = 4190 } service_count = 0 } ssl_ca = /etc/ssl/certs/ca.pem ssl_cert = </etc/ssl/gameloft/our-organization.org.crt ssl_key = # hidden, use -P to show it ssl_parameters_regenerate = 1 weeks userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } So my question is: does Dovecot LDAP auth support LDAP referral? If Dovecot relies on OpenLDAP, it should be support. If not, why and what is the walkthrough? Xuan Jia

2 2

Dovecot 2.3.0, Panic: file mailbox-attribute.c: line 362 (mailbox_attribute_get_stream): assertion failed: (value_r->value != NULL || value_r->value_stream != NULL)
by Marco Giunta 05 Feb '18

05 Feb '18

Hi at all, I have a RHEL7 server with Dovecot 2.3.0 (new installation). I've a problem when trying to dsync from a Dovecot 2.2.24 server. If I try to sync any user with a folder with ACL, dsycn crash with panic: Source server: dsync-local(USERNAME): Debug: sieve: file storage: sync: Synchronization active dovecot: dsync-local(USERNAME): Debug: acl vfile: reading file /var/spool/mail/U/USERNAME/dovecot-acl dsync-local(USERNAME): Error: read(DEST_SERVER.example.com) failed: EOF (last sent=mail_change (EOL), last recv=mailbox) Destination server: Feb 2 14:15:23 DEST_SERVER dovecot: dsync-server(USERNAME): Panic: file mailbox-attribute.c: line 362 (mailbox_attribute_get_stream): assertion failed: (value_r->value != NULL || value_r->value_stream != NULL) Feb 2 14:15:23 DEST_SERVER dovecot: dsync-server(USERNAME): Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(+0xc8cc4) [0x7fa861bc0cc4] -> /usr/lib64/dovecot/libdovecot.so.0(+0xc8d7e) [0x7fa861bc0d7e] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7fa861b34190] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0x55cbc) [0x7fa861ec1cbc] -> dovecot/doveadm-server [10.0.11.137 USERNAME INBOX send:mail_requests recv:attributes](dsync_mailbox_import_attribute+0x4d) [0x55b9d4ce215d] -> dovecot/doveadm-server [10.0.11.137 USERNAME INBOX send:mail_requests recv:attributes](dsync_brain_sync_mails+0x2ef) [0x55b9d4cddbdf] -> dovecot/doveadm-server [10.0.11.137 USERNAME INBOX send:mail_requests recv:attributes](dsync_brain_run+0x2b0) [0x55b9d4cd93e0] -> dovecot/doveadm-server [10.0.11.137 USERNAME INBOX send:mail_requests recv:attributes](+0x43a10) [0x55b9d4cd9a10] -> dovecot/doveadm-server [10.0.11.137 USERNAME INBOX send:mail_requests recv:attributes](+0x5837f) [0x55b9d4cee37f] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x65) [0x7fa861bd82b5] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10f) [0x7fa861bd9b5f] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x52) [0x7fa861bd83b2] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fa861bd85d8] -> dovecot/doveadm-server [10.0.11.137 USERNAME INBOX send:mail_requests recv:attributes](+0x28369) [0x55b9d4cbe369] -> dovecot/doveadm-server [10.0.11.137 USERNAME INBOX send:mail_requests recv:attributes](+0x29c07) [0x55b9d4cbfc07] -> dovecot/doveadm-server [10.0.11.137 USERNAME INBOX send:mail_requests recv:attributes](+0x3f969) [0x55b9d4cd5969] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x65) [0x7fa861bd82b5] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10f) [0x7fa861bd9b5f] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x52) [0x7fa861bd83b2] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fa861bd85d8] -> /usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fa861b56b23] -> dovecot/doveadm-server [10.0.11.137 USERNAME INBOX send:mail_requests recv:attributes](main+0x1b6) [0x55b9d4cb0536] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fa861756c05] -> dovecot/doveadm-server [10.0.11.137 USERNAME INBOX send:mail_requests recv:attributes](+0x1a5f5) [0x55b9d4cb05f5] Feb 2 14:15:23 DEST_SERVER dovecot: dsync-server(USERNAME): Fatal: master: service(doveadm): child 2149 killed with signal 6 (core dumped) Coredump and configuration attached. On source server I run this command: # doveadm -D backup -f -u USERNAME -x 'Archives*' tcp:DEST_SERVER.example.com but same panic if try to sync from destination server: # doveadm -D backup -fR -u USERNAME -x 'Archives*' tcp:SOURCE_SERVER.example.com Same panic also syncing any user with acl and using different acl_shared_dict (file or fs:posix) in dovecot configuration. Thanks, Marco -- Marco Giunta - ITCS SysAdmin Via Bonomea, 265 34136 - Trieste, Italy Tel: +39-040-3787-503 Fax: +39-040-3787-244

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