#0  0x00007fa6764c21f7 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 5766
        selftid = 5766
#1  0x00007fa6764c38e8 in __GI_abort () at abort.c:90
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1}, sa_mask = {__val = {1024, 140352925920261, 94254543275126, 0, 140352930371331, 140729204080784, 94254563559328, 513, 13884021430134021376, 140352934095424, 140352930552771, 94254563559328, 140729204080880, 3328, 140352930553113, 94254563559328}}, 
          sa_flags = 1989059466, sa_restorer = 0x7ffe12380101}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007fa6768ef3d6 in default_fatal_finish (type=<optimized out>, status=status@entry=0) at failures.c:201
        backtrace = 0x55b959c787d8 "/usr/lib64/dovecot/libdovecot.so.0(+0x9f3de) [0x7fa6768ef3de] -> /usr/lib64/dovecot/libdovecot.so.0(+0x9f4be) [0x7fa6768ef4be] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7fa67688077c] -> /usr"...
#3  0x00007fa6768ef4be in i_internal_fatal_handler (ctx=0x7ffe12380140, format=<optimized out>, args=<optimized out>) at failures.c:670
        status = 0
#4  0x00007fa67688077c in i_panic (format=format@entry=0x7fa676c7aa40 "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 = 0x7ffe12380240, reg_save_area = 0x7ffe12380180}}
#5  0x00007fa676c370f7 in blocks_count_lines (full_input=0x55b959cd6510, ctx=0x7ffe123802c0) at index-mail-binary.c:358
        block_idx = 0
        p = <optimized out>
        size = 0
        cur_block_offset = <optimized out>
        data = 0x0
        ret = <optimized out>
        cur_block = 0x55b959c785e0
        block_count = 2
        skip = <optimized out>
#6  index_mail_read_binary_to_cache (_mail=_mail@entry=0x55b959cc2858, part=0x55b959cced78, include_hdr=include_hdr@entry=true, reason=reason@entry=0x7fa676c8cef6 "binary.size", binary_r=binary_r@entry=0x7ffe1238038e, converted_r=converted_r@entry=0x7ffe1238038f) at index-mail-binary.c:396
        mail = 0x55b959cc2858
        cache = 0x55b959c9e138
        ctx = {mail = 0x55b959cc2858, input = 0x55b959cc32a0, has_nuls = false, converted = true, blocks = {arr = {buffer = 0x55b959c785a8, element_size = 24}, v = 0x55b959c785a8, v_modifiable = 0x55b959c785a8}, copy_start_offset = 3424}
        is = 0x55b959cd6510
        __FUNCTION__ = "index_mail_read_binary_to_cache"
#7  0x00007fa676c37569 in index_mail_get_binary_size (lines_r=<optimized out>, size_r=0x7ffe12380490, include_hdr=false, part=0x55b959cced78, _mail=0x55b959cc2858) at index-mail-binary.c:499
        root_bin_part = <optimized out>
        size = <optimized out>
        mail = 0x55b959cc2858
        msg_part = <optimized out>
        bin_part = <optimized out>
        all_parts = 0x55b959cced78
        end_offset = <optimized out>
        lines = <optimized out>
        binary = false
        converted = false
#8  index_mail_get_binary_stream (_mail=0x55b959cc2858, part=0x55b959cced78, include_hdr=<optimized out>, size_r=0x7ffe12380490, lines_r=<optimized out>, binary_r=<optimized out>, stream_r=0x0) at index-mail-binary.c:559
        mail = 0x55b959cc2858
        cache = <optimized out>
        input = 0x55b959cced78
        binary = false
        converted = false
        __FUNCTION__ = "index_mail_get_binary_stream"
#9  0x00007fa676bbfa2b in mail_get_binary_size (mail=mail@entry=0x55b959cc2858, part=0x55b959cced78, include_hdr=<optimized out>, size_r=size_r@entry=0x7ffe12380490, lines_r=lines_r@entry=0x7ffe1238043c) at mail.c:332
        _data_stack_cur_id = 5
        p = 0x55b959cc2858
        binary = 18
        ret = <optimized out>
#10 0x00007fa676c7a340 in imap_msgpart_size (mail=0x55b959cc2858, msgpart=0x55b959cb5cb8, size_r=size_r@entry=0x7ffe12380490) at imap-msgpart.c:750
        result = {input = 0x55b959cced78, size = 0, size_field = MAIL_FETCH_FLAGS, binary_decoded_input_has_nuls = false}
        part = 0x55b959cced78
        include_hdr = <optimized out>
        lines = 21945
        ret = <optimized out>
#11 0x000055b9589327a9 in fetch_binary_size (ctx=0x55b959c9b0f8, mail=<optimized out>, body=0x55b959cc1070) at imap-fetch-body.c:212
        str = <optimized out>
        size = 3
#12 0x000055b95893063a in imap_fetch_more_int (ctx=ctx@entry=0x55b959c9b0f8, cancel=false) at imap-fetch.c:565
        h = <optimized out>
        _data_stack_cur_id = 4
        state = 0x55b959c9b150
        client = 0x55b959c9a3b8
        handlers = 0x55b959cc0d00
        count = <optimized out>
        ret = <optimized out>
        __FUNCTION__ = "imap_fetch_more_int"
#13 0x000055b958931b45 in imap_fetch_more (ctx=0x55b959c9b0f8, cmd=cmd@entry=0x55b959c9af28) at imap-fetch.c:621
        ret = <optimized out>
        __FUNCTION__ = "imap_fetch_more"
#14 0x000055b95892336d in cmd_fetch (cmd=0x55b959c9af28) at cmd-fetch.c:336
        client = 0x55b959c9a3b8
        ctx = 0x55b959c9b0f8
        args = 0x55b959c86c30
        next_arg = <optimized out>
        list_arg = 0x1
        search_args = 0x0
        qresync_args = {qresync_sample_seqset = 0x55b959c78390, qresync_sample_uidset = 0x270}
        messageset = 0x55b959c86da0 "1108"
        send_vanished = <optimized out>
        ret = <optimized out>
#15 0x000055b95892ef0c in command_exec (cmd=cmd@entry=0x55b959c9af28) at imap-commands.c:200
        hook = 0x55b959c81380
        finished = <optimized out>
        __FUNCTION__ = "command_exec"
#16 0x000055b95892d48f in client_command_input (cmd=cmd@entry=0x55b959c9af28) at imap-client.c:1088
        client = 0x55b959c9a3b8
        command = <optimized out>
        __FUNCTION__ = "client_command_input"
#17 0x000055b95892d521 in client_command_input (cmd=0x55b959c9af28) at imap-client.c:1148
        client = 0x55b959c9a3b8
        command = <optimized out>
        __FUNCTION__ = "client_command_input"
#18 0x000055b95892d8e5 in client_handle_next_command (remove_io_r=<synthetic pointer>, client=0x55b959c9a3b8) at imap-client.c:1190
No locals.
#19 client_handle_input (client=client@entry=0x55b959c9a3b8) at imap-client.c:1202
        _data_stack_cur_id = 3
        remove_io = false
        handled_commands = false
        __FUNCTION__ = "client_handle_input"
#20 0x000055b95892de05 in client_input (client=0x55b959c9a3b8) at imap-client.c:1249
        cmd = 0xf3a13
        output = 0x55b959c9add0
        bytes = 51
        __FUNCTION__ = "client_input"
#21 0x00007fa676904cd2 in io_loop_call_io (io=0x55b959c94630) at ioloop.c:600
        ioloop = 0x55b959c809b0
        t_id = 2
        __FUNCTION__ = "io_loop_call_io"
#22 0x00007fa6769063bf in io_loop_handler_run_internal (ioloop=ioloop@entry=0x55b959c809b0) at ioloop-epoll.c:223
        ctx = 0x55b959c824d0
        events = <optimized out>
        list = 0x55b959c94690
        io = <optimized out>
        tv = {tv_sec = 1799, tv_usec = 999642}
        events_count = <optimized out>
        msecs = <optimized out>
        ret = 1
        i = 0
        call = <optimized out>
        __FUNCTION__ = "io_loop_handler_run_internal"
#23 0x00007fa676904d6c in io_loop_handler_run (ioloop=ioloop@entry=0x55b959c809b0) at ioloop.c:649
No locals.
#24 0x00007fa676904f28 in io_loop_run (ioloop=0x55b959c809b0) at ioloop.c:624
        __FUNCTION__ = "io_loop_run"
#25 0x00007fa67688afa3 in master_service_run (service=0x55b959c80850, callback=callback@entry=0x55b95893ab10 <client_connected>) at master-service.c:719
No locals.
#26 0x000055b9589202e3 in main (argc=2, argv=0x55b959c805e0) at main.c:491
        set_roots = {0x55b958b4b720 <imap_setting_parser_info>, 0x7fa6770d5580 <lda_setting_parser_info>, 0x0}
        login_set = {auth_socket_path = 0x55b959c78048 "\001", postlogin_socket_path = 0x55b959c78078 "8\200\307Y\271U", postlogin_timeout_secs = 60, callback = 0x55b95893b2e0 <login_client_connected>, failure_callback = 0x55b95893ac20 <login_client_failed>, request_auth_token = 1}
        service_flags = <optimized out>
        storage_service_flags = <optimized out>
        username = 0x0
        auth_socket_path = 0x55b958944054 "auth-master"
        c = <optimized out>