Hi, I've tried to upgrade to dovecot 2.2.24. It seems that lucene reindex issue should be fixed. But instead of this dovecot indexer-worker crashes very often for me. I'm attaching backtrace. Please let me know if you need backtrace from binary without optimizations. -- WBR, Dmitry -------------- next part -------------- #0 rescan_clear_unseen_mailbox (rescan_ctx=rescan_ctx at entry=0x0, vname=0x55c7212fd120 "blogs", hdr=hdr at entry=0x7ffddf5e3120) at lucene-wrapper.cc:830 box = 0x7ffddf5e30c0 metadata = {guid = void, virtual_size = 140728350945568, physical_size = 94313743381008, first_save_date = 94313186852864, cache_fields = 0x16008bb1a6be7800, precache_fields = (MAIL_FETCH_STREAM_BODY | MAIL_FETCH_RECEIVED_DATE | MAIL_FETCH_SAVE_DATE | MAIL_FETCH_PHYSICAL_SIZE | MAIL_FETCH_NUL_STATE | MAIL_FETCH_IMAP_ENVELOPE | MAIL_FETCH_FROM_ENVELOPE | MAIL_FETCH_STORAGE_ID | MAIL_FETCH_UIDL_BACKEND | MAIL_FETCH_MAILBOX_NAME | MAIL_FETCH_GUID | MAIL_FETCH_BODY_SNIPPET | unknown: 536872960), backend_ns_prefix = 0x0, backend_ns_type = (unknown: 3747492128)} #1 0x00007f83c892bc9e in rescan_clear_unseen_mailboxes (index=index at entry=0x55c7212bf210, rescan_ctx=rescan_ctx at entry=0x0) at lucene-wrapper.cc:863 iter = 0x55c7212fbf80 info = <optimized out> hdr = {last_indexed_uid = 0, settings_checksum = 2205687194, unused = 0} ns = 0x55c721268870 vname = <optimized out> #2 0x00007f83c892cbf4 in lucene_settings_check (index=0x55c7212bf210) at lucene-wrapper.cc:429 set_checksum = <optimized out> ret = <optimized out> #3 lucene_index_build_init (index=0x55c7212bf210) at lucene-wrapper.cc:448 lock_path = 0x55c72124a5c0 "/home/dion/mail/lucene-indexes/write.lock" st = {st_dev = 472446402651, st_ino = 0, st_nlink = 0, st_mode = 119, st_uid = 124, st_gid = 3747492592, __pad0 = 32765, st_rdev = 140204016954144, st_size = 6, st_blksize = 12528, st_blocks = 94313743630096, st_atim = {tv_sec = 94313743584528, tv_nsec = 94313743567592}, st_mtim = {tv_sec = 1585420663957387264, tv_nsec = 94313727365448}, st_ctim = {tv_sec = 5, tv_nsec = 94313743126928}, __glibc_reserved = {94313743380704, 140728350946096, 94313743584528}} exists = <optimized out> #4 0x00007f83c892af6e in fts_backend_lucene_update_set_build_key (_ctx=0x55c7212d0890, key=0x7ffddf5e3330) at fts-backend-lucene.c:366 ctx = 0x55c7212d0890 backend = 0x55c7212bf0e0 __FUNCTION__ = "fts_backend_lucene_update_set_build_key" #5 0x00007f83c9e17204 in fts_backend_update_set_build_key (ctx=0x55c7212d0890, key=key at entry=0x7ffddf5e3330) at fts-api.c:175 __FUNCTION__ = "fts_backend_update_set_build_key" #6 0x00007f83c9e1857d in fts_build_mail_header (block=0x7ffddf5e3310, block=0x7ffddf5e3310, ctx=0x7ffddf5e3360) at fts-build-mail.c:174 hdr = 0x55c7212ecae8 key = {uid = 157102, type = FTS_BACKEND_BUILD_KEY_HDR, part = 0x55c72124a560, hdr_name = 0x55c7212f0de0 "Return-path", body_content_type = 0x0, body_content_disposition = 0x0} ret = <optimized out> #7 fts_build_mail_real (mail=0x55c7212ca260, update_ctx=0x55c7212d0890) at fts-build-mail.c:548 block = {part = 0x55c72124a560, hdr = 0x55c7212ecae8, data = 0x6e0000005b <error: Cannot access memory at address 0x6e0000005b>, size = 0} ret = <optimized out> input = 0x55c7212ec500 raw_block = {part = 0x55c72124a560, hdr = 0x55c7212f0d10, data = 0x0, size = 0} skip_body = false ctx = {mail = 0x55c7212ca260, update_ctx = 0x55c7212d0890, content_type = 0x0, content_disposition = 0x0, body_parser = 0x0, word_buf = 0x0, pending_input = 0x0, cur_user_lang = 0x0} prev_part = <optimized out> parser = 0x55c7212ec700 decoder = 0x55c7212ecad0 parts = 0x55c700000007 body_part = false body_added = false binary_body = <optimized out> error = 0x265ae <error: Cannot access memory at address 0x265ae> #8 fts_build_mail (update_ctx=0x55c7212d0890, mail=mail at entry=0x55c7212ca260) at fts-build-mail.c:594 _data_stack_cur_id = 6 #9 0x00007f83c9e1e93e in fts_mail_index (_mail=0x55c7212ca260) at fts-storage.c:501 ft = 0x55c7212d0a80 flist = 0x55c721281568 #10 fts_mail_precache (_mail=0x55c7212ca260) at fts-storage.c:520 _data_stack_cur_id = 5 mail = 0x55c7212ca260 fmail = <optimized out> ft = <optimized out> #11 0x00007f83cad49ab9 in mail_precache (mail=0x55c7212ca260) at mail.c:401 _data_stack_cur_id = 4 p = 0x55c7212ca260 #12 0x000055c720177508 in index_mailbox_precache (conn=0x55c721258550, box=0x55c7212c1630) at master-connection.c:93 box_vname = 0x55c7212c1930 "trash" percentage_str = "\340R%!" percentage_sent = 0 ret = 0 storage = <optimized out> username = 0x55c72127d278 "dion" status = {messages = 5, recent = 0, unseen = 0, uidvalidity = 1459164554, uidnext = 157107, first_unseen_seq = 0, first_recent_uid = 157102, last_cached_seq = 0, highest_modseq = 0, highest_pvt_modseq = 0, keywords = 0x0, permanent_flags = 0, permanent_keywords = 0, allow_new_keywords = 0, nonpermanent_modseqs = 0, no_modseq_tracking = 0, have_guids = 1, have_save_guids = 1, have_only_guid128 = 0} ctx = 0x55c7212cfdb0 seq = <optimized out> percentage = <optimized out> trans = 0x55c7212d1170 search_args = 0x0 mail = 0x55c7212ca260 metadata = {guid = '\000' <repeats 15 times>, virtual_size = 0, physical_size = 0, first_save_date = 0, cache_fields = 0x0, precache_fields = (MAIL_FETCH_STREAM_HEADER | MAIL_FETCH_STREAM_BODY | MAIL_FETCH_RECEIVED_DATE | MAIL_FETCH_SAVE_DATE | MAIL_FETCH_PHYSICAL_SIZE | MAIL_FETCH_VIRTUAL_SIZE | MAIL_FETCH_UIDL_BACKEND | MAIL_FETCH_GUID | MAIL_FETCH_POP3_ORDER), backend_ns_prefix = 0x0, backend_ns_type = (unknown: 0)} counter = 0 max = 5 #13 index_mailbox (what=<optimized out>, max_recent_msgs=<optimized out>, mailbox=<optimized out>, user=<optimized out>, conn=0x55c721258550) at master-connection.c:186 box = 0x55c7212c1630 status = {messages = 3747493248, recent = 32765, unseen = 107, uidvalidity = 32765, uidnext = 8192, first_unseen_seq = 0, first_recent_uid = 8240, last_cached_seq = 0, highest_modseq = 128, highest_pvt_modseq = 755914244609, keywords = 0x10, permanent_flags = MAIL_FLAGGED, permanent_keywords = 0, allow_new_keywords = 0, nonpermanent_modseqs = 0, no_modseq_tracking = 0, have_guids = 0, have_save_guids = 0, have_only_guid128 = 0} errstr = <optimized out> ret = 0 ns = <optimized out> path = 0x55c721249f60 "/home/dion/mail/mailboxes/trash/dbox-Mails" error = MAIL_ERROR_NOQUOTA sync_flags = <optimized out> #14 master_connection_input_line (line=<optimized out>, conn=0x55c721258550) at master-connection.c:228 str = <optimized out> max_recent_msgs = 0 ret = <optimized out> args = <optimized out> input = {module = 0x55c720177bcf "mail", service = 0x55c720177bc0 "indexer-worker", username = 0x55c721247060 "dion", session_id = 0x0, session_id_prefix = 0x55c72124706b "JxcJB7KEOVcVWQAA0vq6Vw", local_ip = {family = 0, u = {ip6 = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = {s_addr = 0}}}, remote_ip = {family = 0, u = {ip6 = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = {s_addr = 0}}}, local_port = 0, remote_port = 0, userdb_fields = 0x0, flags_override_add = (unknown: 0), flags_override_remove = (unknown: 0), no_userdb_lookup = 0, debug = 0} service_user = 0x55c72125a9f0 user = 0x55c72127d180 error = 0x7f83caabf8db <write_full+59> "H\205\300x t.H\001\305H)\303u\334H\203\304\b1\300[]A\\A]\303f\017\037\204" #15 master_connection_input (conn=0x55c721258550) at master-connection.c:265 _data_stack_cur_id = 3 line = <optimized out> #16 0x00007f83caaa454c in io_loop_call_io (io=0x55c721258590) at ioloop.c:564 ioloop = 0x55c72124f700 t_id = 2 __FUNCTION__ = "io_loop_call_io" #17 0x00007f83caaa59e1 in io_loop_handler_run_internal (ioloop=ioloop at entry=0x55c72124f700) at ioloop-epoll.c:220 ctx = 0x55c7212552e0 io = <optimized out> tv = {tv_sec = 2147483, tv_usec = 0} events_count = <optimized out> msecs = <optimized out> ret = 1 i = 0 j = <optimized out> call = <optimized out> __FUNCTION__ = "io_loop_handler_run_internal" #18 0x00007f83caaa45d5 in io_loop_handler_run (ioloop=ioloop at entry=0x55c72124f700) at ioloop.c:612 No locals. #19 0x00007f83caaa4778 in io_loop_run (ioloop=0x55c72124f700) at ioloop.c:588 __FUNCTION__ = "io_loop_run" #20 0x00007f83caa3a653 in master_service_run (service=0x55c72124f5a0, callback=<optimized out>) at master-service.c:640 No locals. #21 0x000055c720176f37 in main (argc=1, argv=0x55c72124f390) at indexer-worker.c:78 storage_service_flags = (MAIL_STORAGE_SERVICE_FLAG_DISALLOW_ROOT | MAIL_STORAGE_SERVICE_FLAG_USERDB_LOOKUP | MAIL_STORAGE_SERVICE_FLAG_TEMP_PRIV_DROP | MAIL_STORAGE_SERVICE_FLAG_NO_IDLE_TIMEOUT) c = <optimized out>