Hi Aki, debian jessie backports has been moved to archive.debian.org and initially I was unable to install dovecot-dbg because of that. But I've managed to resolve that issue now.
This was the command I ran: doveadm -D -f flow fetch imap.envelope mailbox crm-spam.2008.g Backtrace follows. Jason jason@debian:~$ gdb /usr/bin/doveadm /home/jason/core GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1 Copyright (C) 2014 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/bin/doveadm...Reading symbols from /usr/lib/debug/.build-id/8a/e850dc3cde00618eb0c3386b7404fe984c8118.debug...done. done. [New LWP 23099] Core was generated by `/usr/bin/doveadm -D -f flow fetch imap.envelope mailbox crm-spam.2008.g'. Program terminated with signal SIGABRT, Aborted. #0 0x00007f3a7bf58067 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 56 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) bt full #0 0x00007f3a7bf58067 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 resultvar = 0 pid = 23099 selftid = 23099 #1 0x00007f3a7bf59448 in __GI_abort () at abort.c:89 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {1024, 93886903596007, 93886903463748, 139889164438341, 93886903464748, 0, 93886931979560, 513, 12274393185022739456, 93886931979560, 139889168940995, 93886931979560, 140727948500176, 4294967040, 139889168941353, 93886931979560}}, sa_flags = 2083919594, sa_restorer = 0x7ffdc7615d01} sigs = {__val = {32, 0 <repeats 15 times>}} #2 0x00007f3a7c3669a6 in default_fatal_finish (type=<optimized out>, status=status@entry=0) at failures.c:201 backtrace = 0x5563c13acd60 "/usr/lib/dovecot/libdovecot.so.0(+0x989ae) [0x7f3a7c3669ae] -> /usr/lib/dovecot/libdovecot.so.0(+0x98a28) [0x7f3a7c366a28] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f3a7c2fc67e] -> /usr/lib/d"... #3 0x00007f3a7c366a28 in default_fatal_handler (ctx=0x7ffdc7615d20, format=<optimized out>, args=<optimized out>) at failures.c:215 status = 0 #4 0x00007f3a7c2fc67e in i_panic (format=format@entry=0x7f3a7c399088 "file %s: line %d (%s): assertion failed: (%s)") at failures.c:275 ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0, timestamp_usecs = 0} args = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7ffdc7615e20, reg_save_area = 0x7ffdc7615d60}} #5 0x00007f3a7c34a97d in rfc822_parser_deinit (ctx=0x7ffdc7615e38, ctx=0x7ffdc7615e38) at rfc822-parser.h:23 No locals. #6 message_address_parse_real (pool=pool@entry=0x5563c13e75d0, data=data@entry=0x5563c13f3910 "To: bluef...@dickson.st, ja...@dickson.st, lewisja...@dickson.st, 05 Jul 2008 16:39:47 -0500 PDT6Q--q=dns; c=nofws;d sender) smtp.mail=matt_coo...@postnewsweektech.com; domainkeys=pass (test mode) hea"..., size=size@entry=64, max_addresses=max_addresses@entry=4294967295, fill_missing=fill_missing@entry=true) at message-address.c:323 ctx = {pool = 0x5563c13e75d0, parser = { data = 0x5563c13f3951 " 05 Jul 2008 16:39:47 -0500 PDT6Q--q=dns; c=nofws;d sender) smtp.mail=matt_coo...@postnewsweektech.com; domainkeys=pass (test mode) header.From=matt_coo...@postnewsweektech.com", end = 0x5563c13f3950 ", 05 Jul 2008 16:39:47 -0500 PDT6Q--q=dns; c=nofws;d sender) smtp.mail=matt_coo...@postnewsweektech.com; domainkeys=pass (test mode) header.From=matt_coo...@postnewsweektech.com", last_comment = 0x5563c13acb78}, first_addr = 0x5563c13e7910, last_addr = 0x5563c13e7a28, addr = {next = 0x0, name = 0x0, route = 0x0, mailbox = 0x0, domain = 0x0, invalid_syntax = false}, str = 0x5563c13acc50, fill_missing = true} #7 0x00007f3a7c34a9e5 in message_address_parse (pool=pool@entry=0x5563c13e75d0, data=0x5563c13f3910 "To: bluef...@dickson.st, ja...@dickson.st, lewisja...@dickson.st, 05 Jul 2008 16:39:47 -0500 PDT6Q--q=dns; c=nofws;d sen---Type <return> to continue, or q <return> to quit--- der) smtp.mail=matt_coo...@postnewsweektech.com; domainkeys=pass (test mode) hea"..., size=64, max_addresses=max_addresses@entry=4294967295, fill_missing=fill_missing@entry=true) at message-address.c:338 _data_stack_cur_id = 4 addr = <optimized out> #8 0x00007f3a7c33e374 in imap_envelope_parse_header (pool=0x5563c13e75d0, data=data@entry=0x5563c13e6ff0, hdr=hdr@entry=0x5563c13d55a0) at imap-envelope.c:147 d = <optimized out> field = IMAP_ENVELOPE_TO addr_p = 0x5563c13e7798 str_p = 0x0 #9 0x00007f3a7c6a222e in index_mail_parse_header (part=<optimized out>, hdr=0x5563c13d55a0, mail=0x5563c13e6de0) at index-mail-headers.c:298 _mail = 0x5563c13e6de0 data = 0x5563c13e6f60 field_idx = <optimized out> count = <optimized out> __FUNCTION__ = "index_mail_parse_header" #10 0x00007f3a7c34779f in read_header (mstream=0x5563c13efef0) at istream-header-filter.c:246 orig_matched = true matched = true max_buffer_size = <optimized out> ret = <optimized out> hdr = 0x5563c13d55a0 highwater_offset = <optimized out> ret2 = <optimized out> hdr_ret = 1 #11 i_stream_header_filter_read (stream=0x5563c13efef0) at istream-header-filter.c:425 mstream = 0x5563c13efef0 #12 0x00007f3a7c3717e3 in i_stream_read (stream=stream@entry=0x5563c13eff60) at istream.c:174 _stream = 0x5563c13efef0 old_size = 42 ret = <optimized out> __FUNCTION__ = "i_stream_read" #13 0x00007f3a7c37222d in i_stream_read_data (stream=0x5563c13eff60, data_r=data_r@entry=0x7ffdc7616158, size_r=size_r@entry=0x7ffdc7616160, ---Type <return> to continue, or q <return> to quit--- threshold=threshold@entry=42) at istream.c:569 ret = <optimized out> read_more = false __FUNCTION__ = "i_stream_read_data" #14 0x00007f3a7c34d3d2 in message_parse_header_next (ctx=0x5563c13d9a50, hdr_r=hdr_r@entry=0x7ffdc76161c0) at message-header-parser.c:84 line = 0x5563c13d9a50 msg = 0x5563c13f1a57 "Subject: ADV: Order Reminder: #317330373\r\n>\r\n" i = <optimized out> size = 42 startpos = 41 colon_pos = 7 parse_size = <optimized out> skip = 0 ret = <optimized out> continued = false continues = false last_no_newline = <optimized out> last_crlf = <optimized out> no_newline = false crlf_newline = false __FUNCTION__ = "message_parse_header_next" #15 0x00007f3a7c34dd7f in message_parse_header (input=<optimized out>, hdr_size=hdr_size@entry=0x0, flags=flags@entry=(MESSAGE_HEADER_PARSER_FLAG_SKIP_INITIAL_LWSP | MESSAGE_HEADER_PARSER_FLAG_DROP_CR), callback=callback@entry=0x7f3a7c6a19f0 <imap_envelope_parse_callback>, context=context@entry=0x5563c13e6de0) at message-header-parser.c:391 hdr_ctx = 0x5563c13d9a50 hdr = 0x0 ret = <optimized out> __FUNCTION__ = "message_parse_header" #16 0x00007f3a7c6a3448 in index_mail_headers_get_envelope (mail=mail@entry=0x5563c13e6de0) at index-mail-headers.c:513 cache_field_envelope = <optimized out> header_ctx = 0x0 stream = 0x5563c13eff60 old_offset = 0 ---Type <return> to continue, or q <return> to quit--- str = 0x0 #17 0x00007f3a7c6a76c1 in index_mail_get_special (_mail=_mail@entry=0x5563c13e6de0, field=<optimized out>, value_r=value_r@entry=0x7ffdc7616380) at index-mail.c:1432 mail = 0x5563c13e6de0 data = 0x5563c13e6f60 cache_fields = <optimized out> error = 0x7f3a7c6ac092 <search_more+882> "\204\300A\213\207", <incomplete sequence \310> str = 0x4a __FUNCTION__ = "index_mail_get_special" #18 0x00007f3a7c65ddd3 in maildir_mail_get_special (_mail=0x5563c13e6de0, field=<optimized out>, value_r=0x7ffdc7616380) at maildir-mail.c:585 mail = 0x5563c13e6de0 mbox = 0x5563c13d4550 path = <optimized out> fname = 0x0 end = <optimized out> guid = <optimized out> uidl = <optimized out> order = <optimized out> st = {st_dev = 93886932064256, st_ino = 93886932171200, st_nlink = 93886932027904, st_mode = 3241904640, st_uid = 21859, st_gid = 3345048439, __pad0 = 32765, st_rdev = 93886932027792, st_size = 93886932027552, st_blksize = 139889172202932, st_blocks = 93886932171288, st_atim = {tv_sec = 139889159904424, tv_nsec = 93886932064256}, st_mtim = {tv_sec = 93886932064256, tv_nsec = 93886932217312}, st_ctim = {tv_sec = -6172350888686812160, tv_nsec = 93886932027904}, __glibc_reserved = {93886932171200, 93886932218232, 140727948501888}} __FUNCTION__ = "maildir_mail_get_special" #19 0x00007f3a7c62ea8d in mail_get_special (mail=<optimized out>, field=field@entry=MAIL_FETCH_IMAP_ENVELOPE, value_r=value_r@entry=0x7ffdc7616380) at mail.c:343 p = <optimized out> __FUNCTION__ = "mail_get_special" #20 0x00005563bf88dca8 in fetch_imap_envelope (ctx=<optimized out>) at doveadm-mail-fetch.c:410 value = 0x5563c13b88a0 "\200\210;\301cU" #21 0x00005563bf88ed7e in cmd_fetch_mail (ctx=<optimized out>) at doveadm-mail-fetch.c:587 field__foreach_end = 0x5563c13aa338 field = 0x5563c13aa320 ---Type <return> to continue, or q <return> to quit--- mail = 0x5563c13e6de0 ret = 0 #22 cmd_fetch_box (info=<optimized out>, ctx=<optimized out>) at doveadm-mail-fetch.c:616 _data_stack_cur_id = 3 iter = 0x5563c13d44d0 ret = 0 #23 cmd_fetch_run (_ctx=0x5563c13b88a0, user=0x5a3b) at doveadm-mail-fetch.c:639 _data_stack_cur_id = 2 iter = 0x5563c13d4390 info = 0x5563c13aa338 #24 0x00005563bf88a57c in doveadm_mail_next_user (ctx=ctx@entry=0x5563c13b88a0, cctx=cctx@entry=0x7ffdc7616720, error_r=error_r@entry=0x7ffdc7616530) at doveadm-mail.c:404 input = {module = 0x0, service = 0x5563bf8c2554 "doveadm", username = 0x5563c13b157e "jason", session_id = 0x0, session_id_prefix = 0x0, session_create_time = 0, 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} error = 0x20 <error: Cannot access memory at address 0x20> ip = <optimized out> ret = <optimized out> __FUNCTION__ = "doveadm_mail_next_user" #25 0x00005563bf88afe3 in doveadm_mail_single_user (ctx=ctx@entry=0x5563c13b88a0, cctx=cctx@entry=0x7ffdc7616720, error_r=error_r@entry=0x7ffdc7616530) at doveadm-mail.c:435 __FUNCTION__ = "doveadm_mail_single_user" #26 0x00005563bf88b0da in doveadm_mail_cmd_exec (ctx=ctx@entry=0x5563c13b88a0, cctx=cctx@entry=0x7ffdc7616720, wildcard_user=wildcard_user@entry=0x0) at doveadm-mail.c:596 ret = <optimized out> error = 0x41 <error: Cannot access memory at address 0x41> #27 0x00005563bf88bf5f in doveadm_cmd_ver2_to_mail_cmd_wrapper (cctx=0x7ffdc7616720) at doveadm-mail.c:1061 mctx = 0x5563c13b88a0 wildcard_user = <optimized out> fieldstr = 0x5563c13a9c70 "" ---Type <return> to continue, or q <return> to quit--- i = <optimized out> mail_cmd = {alloc = 0x5563bf88d9e0 <cmd_fetch_alloc>, name = 0x5563bf8c39e7 "fetch", usage_args = 0x5563bf8c3bd8 "[-u <user>|-A] [-S <socket_path>] <fields> <search query>"} #28 0x00005563bf89b390 in doveadm_cmd_run_ver2 (argc=4, argv=0x5563c13b13c0, cctx=cctx@entry=0x7ffdc7616720) at doveadm-cmd.c:525 param = <optimized out> pargv = {arr = {buffer = 0x5563c13a99c8, element_size = 104}, v = 0x5563c13a99c8, v_modifiable = 0x5563c13a99c8} opts = {arr = {buffer = <optimized out>, element_size = 32}, v = <optimized out>, v_modifiable = <optimized out>} pargc = 7 c = <optimized out> li = 21859 pool = 0x5563c13a96f8 optbuf = <optimized out> __FUNCTION__ = "doveadm_cmd_run_ver2" #29 0x00005563bf89b3e7 in doveadm_cmd_try_run_ver2 (cmd_name=<optimized out>, argc=4, argv=0x5563c13b13c0, cctx=0x7ffdc7616720) at doveadm-cmd.c:448 cmd = <optimized out> #30 0x00005563bf87af44 in main (argc=4, argv=0x5563c13b13c0) at doveadm.c:379 cctx = {cmd = 0x5563c13be098, argc = 7, argv = 0x5563c13a9a00, username = 0x5563c13b157e "jason", cli = true, tcp_server = false, 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, conn = 0x0} cmd_name = 0x5563c13b1404 "fetch" quick_init = false c = <optimized out> (gdb) Aki Tuomi wrote on 26/3/19 7:28 pm: > What's non-trivial about apt-get install dovecot-dbg? > > Aki > > On 26.3.2019 5.38, Jason Lewis via dovecot wrote: >> After some investigation, it turns out it is non trivial to install >> dovecot-dbg on debian jessie. >> >> Sorry I can't investigate further. >> >> Jason >> >> Aki Tuomi wrote on 25/3/19 6:12 pm: >>> Can you install dovecot-dbg and try gdb again? >>> >>> Aki >>> >>> On 25.3.2019 3.20, Jason Lewis via dovecot wrote: >>> > -- Jason Lewis http://emacstragic.net
