Hi,

I got all excited about IMAP NOTIFY support and tried enabling mailbox_list_index on my server. Unfortunately, I rather quickly ran into trouble of the segfault variety. This prevented me from doing basic things like seeing the contents of some of my folders. Disabling mailbox_list_index got me back up and running, but... darnit, that's annoying. The only message I got in my log file was this:

imap(user@domain): Fatal: master: service(imap): child 6899 killed with signal 
11 (core dumped)

If I can help track this down, please let me know. Here's the backtrace:

#0  hash_table_insert_node (table=0x10eff60, key=0x103, value=0x10fd8b0, 
check_existing=<value optimized out>) at hash.c:268
        node = 0x69616d2d746e6573
        prev = 0x10fbee0
        hash = <value optimized out>
        __FUNCTION__ = "hash_table_insert_node"
#1  0x00007fad738a11be in hash_table_insert (table=0x10eff60, key=0x1, 
value=0x101) at hash.c:285
        node = 0x0
#2  0x00007fad73b81e68 in mailbox_list_index_parse_header (list=<value optimized 
out>, view=0x11095f0,
    force=<value optimized out>) at mailbox-list-index.c:196
        data = 0x10f5f30
        i = 4980
        len = 1
        size = 8192
        id = 1
#3  mailbox_list_index_parse (list=<value optimized out>, view=0x11095f0, 
force=<value optimized out>)
    at mailbox-list-index.c:317
        ilist = 0x10edc80
        hdr = <value optimized out>
        error = 0x10f5820 "`▒\016\001"
        __FUNCTION__ = "mailbox_list_index_parse"
#4  0x00007fad73b86b03 in mailbox_list_index_sync_begin (list=0x10ed890, 
sync_ctx_r=0x7fff2ad61ee0)
    at mailbox-list-index-sync.c:247
        ilist = 0x10edc80
        sync_ctx = <value optimized out>
        index_sync_ctx = <value optimized out>
        view = 0x11095f0
        trans = <value optimized out>
        hdr = <value optimized out>
#5  0x00007fad73b86ffb in mailbox_list_index_sync (list=0x10eff60) at 
mailbox-list-index-sync.c:382
        sync_ctx = 0x1107300
        ret = <value optimized out>
#6  0x00007fad73b8233f in mailbox_list_index_refresh (list=0x10ed890) at 
mailbox-list-index.c:376
        ilist = 0x10edc80
        view = 0x1107300
        ret = <value optimized out>
#7  0x00007fad73b85e19 in index_list_update_mailbox (box=0x10f40a0) at 
mailbox-list-index-status.c:363
        list_sync_ctx = 0x1107140
        list_view = <value optimized out>
        list_trans = <value optimized out>
        changes = {status = {messages = 718675880, recent = 32767, unseen = 
4294967295, uidvalidity = 0, uidnext = 68,
            first_unseen_seq = 0, first_recent_uid = 1, last_cached_seq = 0, 
highest_modseq = 3176264,
            highest_pvt_modseq = 17854784, keywords = 0x10f40a0, 
permanent_flags = 17778368, permanent_keywords = 0,
            allow_new_keywords = 0, nonpermanent_modseqs = 0, have_guids = 0},
          guid = "p ▒*▒\177\000\000D\000\000\000\000\000\000", seq = 17750944, 
rec_changed = false, msgs_changed = false,
          hmodseq_changed = false}
        __FUNCTION__ = "index_list_update_mailbox"
#8  0x00007fad73b86089 in index_list_sync_deinit (ctx=0x1107140, 
status_r=0x7fff2ad62070) at mailbox-list-index-status.c:470
        box = 0x10f40a0
#9  0x00007fad73b70f4a in mailbox_sync_deinit (_ctx=0x0, status_r=0x1) at 
mail-storage.c:1655
        ctx = 0x10eff60
        box = 0x10f40a0
        errormsg = <value optimized out>
        error = <value optimized out>
        ret = <value optimized out>
#10 0x00007fad73b7100b in mailbox_sync (box=<value optimized out>, flags=<value 
optimized out>) at mail-storage.c:1681
        ctx = 0x0
        status = {sync_delayed_expunges = 0}
#11 0x00007fad73b9af72 in index_storage_get_status (box=0x10f40a0, items=17, 
status_r=<value optimized out>)
    at index-status.c:39
No locals.
#12 0x00007fad72cabde4 in fts_mailbox_get_status (box=0x10f40a0, items=17, 
status_r=0x7fff2ad621b0) at fts-storage.c:86
        seq = <value optimized out>
#13 0x00007fad73b864e6 in index_list_get_status (box=0x10f40a0, items=17, 
status_r=0x7fff2ad621b0)
    at mailbox-list-index-status.c:162
No locals.
#14 0x000000000041c8da in imap_status_get (cmd=0x10f1880, ns=0x10e8b00, mailbox=0x10cc2c8 
"Flight.RV", items=0x7fff2ad62240,
    result_r=0x7fff2ad621b0) at imap-status.c:84
        client = 0x10f0ce0
        box = 0x10f40a0
        errstr = <value optimized out>
        ret = <value optimized out>
#15 0x000000000041219d in cmd_status (cmd=0x10f1880) at cmd-status.c:40
        client = 0x10f0ce0
        args = 0x10d7a38
        list_args = 0x10d7be0
        items = {status = 17, metadata = 0}
        result = {status = {messages = 0, recent = 0, unseen = 0, uidvalidity = 
0, uidnext = 0, first_unseen_seq = 0,
            first_recent_uid = 0, 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, have_guids = 1},
          metadata = {guid = "PY\r\001", '\000' <repeats 11 times>, 
virtual_size = 17651520, cache_fields = 0x7fad73836e40,
            precache_fields = 1934521552, backend_ns_prefix = 0x7fad74012000 
"", backend_ns_type = 1080}, error = 4294967295,
          errstr = 0xffffffffffffffa8 <Address 0xffffffffffffffa8 out of 
bounds>}
        ns = <value optimized out>
        mailbox = 0x10cc2c8 "Flight.RV"
        orig_mailbox = 0x10d7b98 "Flight.RV"
#16 0x00000000004160ad in command_exec (cmd=0x10f1880) at imap-commands.c:156
        hook = 0x10d5d90
        ret = <value optimized out>
#17 0x0000000000415200 in client_command_input (cmd=0x10f1880) at 
imap-client.c:775
        client = 0x10f0ce0
        command = <value optimized out>
        __FUNCTION__ = "client_command_input"
#18 0x00000000004152ed in client_command_input (cmd=0x10f1880) at 
imap-client.c:836
        client = 0x10f0ce0
        command = 0x0
        __FUNCTION__ = "client_command_input"
#19 0x000000000041556d in client_handle_next_command (client=0x10f0ce0) at 
imap-client.c:874
No locals.
#20 client_handle_input (client=0x10f0ce0) at imap-client.c:886
        _data_stack_cur_id = 3
        ret = 208
        remove_io = <value optimized out>
        handled_commands = false
        __FUNCTION__ = "client_handle_input"
#21 0x00000000004158ef in client_input (client=0x10f0ce0) at imap-client.c:928
        cmd = <value optimized out>
        output = 0x10f16d8
        bytes = <value optimized out>
        __FUNCTION__ = "client_input"
#22 0x00007fad738abdf6 in io_loop_call_io (io=0x10f1780) at ioloop.c:387
        ioloop = 0x10d4720
        t_id = 2
#23 0x00007fad738ace6f in io_loop_handler_run (ioloop=<value optimized out>) at 
ioloop-epoll.c:215
        ctx = 0x10d4aa0
        event = 0x10d4b10
        list = 0x10f17d0
        io = 0x10eff60
        tv = {tv_sec = 1799, tv_usec = 999580}
        msecs = <value optimized out>
        ret = 1
        i = 0
        call = false
        __FUNCTION__ = "io_loop_handler_run"
#24 0x00007fad738abd98 in io_loop_run (ioloop=0x10d4720) at ioloop.c:406
No locals.
#25 0x00007fad738621b3 in master_service_run (service=0x10d45b0, callback=0x1) 
at master-service.c:560
No locals.
#26 0x000000000041eb67 in main (argc=1, argv=0x10d4390) at main.c:400
        set_roots = {0x426200, 0x0}
        login_set = {auth_socket_path = 0x10cc050 "(", postlogin_socket_path = 
0x0, postlogin_timeout_secs = 60,
          callback = 0x41ed60 <login_client_connected>, failure_callback = 0x41ed00 
<login_client_failed>,
          request_auth_token = 1}
        service_flags = <value optimized out>
        storage_service_flags = MAIL_STORAGE_SERVICE_FLAG_DISALLOW_ROOT
        username = 0x0
        c = <value optimized out>


~Kyle
--
For every complex problem, there is a solution that is simple, neat, and wrong.
                                                      -- H. L. Mencken

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