#0  0x00007f4db2e53405 in raise () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f4db2e56680 in abort () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2  0x00007f4db31f4b18 in default_fatal_finish (type=LOG_TYPE_PANIC, status=0) at failures.c:187
        backtrace = 0xfbd158 "/usr/local/lib/dovecot/libdovecot.so.0(+0x4faf1) [0x7f4db31f4af1] -> /usr/local/lib/dovecot/libdovecot.so.0(default_error_handler+0) [0x7f4db31f4b7d] -> /usr/local/lib/dovecot/libdovecot.so.0(i_fatal+"...
#3  0x00007f4db31f4b7d in default_fatal_handler (ctx=0x7fff849ac7f0, format=0x419368 "file %s: line %d (%s): assertion failed: (%s)", args=0x7fff849ac7d8) at failures.c:201
        status = 0
#4  0x00007f4db31f4e01 in i_panic (format=0x419368 "file %s: line %d (%s): assertion failed: (%s)") at failures.c:259
        ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0}
        args = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fff849ac8c0, reg_save_area = 0x7fff849ac800}}
#5  0x0000000000416af8 in local_worker_save_msg_continue (worker=0xfe4020) at dsync-worker-local.c:1644
        dest_box = 0xff6250
        callback = 0x1046020
        ret = 8192
        __FUNCTION__ = "local_worker_save_msg_continue"
#6  0x0000000000416e46 in local_worker_msg_save (_worker=0xfe4020, msg=0x7f4db39629e8, data=0x7fff849aca50, callback=0x40b685 <msg_save_callback>, context=0x104edd0) at dsync-worker-local.c:1713
        worker = 0xfe4020
        dest_box = 0xff6250
        save_ctx = 0x103cfa0
        __FUNCTION__ = "local_worker_msg_save"
#7  0x0000000000412cb2 in dsync_worker_msg_save (worker=0xfe4020, msg=0x7f4db39629e8, data=0x7fff849aca50, callback=0x40b685 <msg_save_callback>, context=0x104edd0) at dsync-worker.c:234
        _data_stack_cur_id = 3
#8  0x000000000040b7e0 in msg_get_callback (result=DSYNC_MSG_GET_RESULT_SUCCESS, data=0x7fff849aca50, context=0x104edd0) at dsync-brain-msgs-new.c:78
        ctx = 0x104edd0
        mailbox = 0x7f4db3962150
        input = 0x1046080
        __FUNCTION__ = "msg_get_callback"
#9  0x0000000000417286 in local_worker_msg_get_next (worker=0xfedcc0, get=0x7fff849acab0) at dsync-worker-local.c:1814
        data = {pop3_uidl = 0xfbcc60 "", received_date = 1301263892, input = 0x1046080}
        trans = 0x10135c0
        box = 0xff7cb0
        __FUNCTION__ = "local_worker_msg_get_next"
#10 0x0000000000417324 in local_worker_msg_get (_worker=0xfedcc0, mailbox=0x7f4db3962169, uid=7, callback=0x40b6ff <msg_get_callback>, context=0x104edd0) at dsync-worker-local.c:1835
        worker = 0xfedcc0
        get = {mailbox = {guid = "\267\245\066'\363\313\342N3\003\000\000\205\r/\255"}, uid = 7, callback = 0x40b6ff <msg_get_callback>, context = 0x104edd0}
#11 0x0000000000412dd4 in dsync_worker_msg_get (worker=0xfedcc0, mailbox=0x7f4db3962169, uid=7, callback=0x40b6ff <msg_get_callback>, context=0x104edd0) at dsync-worker.c:261
        _data_stack_cur_id = 2
        __FUNCTION__ = "dsync_worker_msg_get"
#12 0x000000000040bbf3 in dsync_brain_msg_sync_add_new_msg (dest_iter=0x7f4db3962330, src_mailbox=0x7f4db3962169, msg_idx=10, msg=0x10a6d50) at dsync-brain-msgs-new.c:180
        save_ctx = 0x104edd0
        copy_ctx = 0x10
        src_iter = 0x7f4db39623b8
        inst = 0x0
        inst_box = 0x7fff849acbb4
#13 0x000000000040bd62 in dsync_brain_mailbox_add_new_msgs (iter=0x7f4db3962330, mailbox_guid=0x7f4db3962169) at dsync-brain-msgs-new.c:215
        msg = 0x10a6d50
        msgs = 0x10a6cb0
        msg_count = 3025
        ret = true
        __FUNCTION__ = "dsync_brain_mailbox_add_new_msgs"
#14 0x000000000040c106 in dsync_brain_msg_sync_add_new_msgs (iter=0x7f4db3962330) at dsync-brain-msgs-new.c:314
        mailbox = 0x7f4db3962150
        mailbox_guid = 0x7f4db3962169
#15 0x000000000040c318 in dsync_brain_msg_iter_sync_new_msgs (iter=0x7f4db3962330) at dsync-brain-msgs-new.c:385
No locals.
#16 0x000000000040c336 in dsync_brain_msg_sync_new_msgs (sync=0x7f4db3962050) at dsync-brain-msgs-new.c:390
No locals.
#17 0x000000000040b15e in dsync_brain_msg_sync_more (sync=0x7f4db3962050) at dsync-brain-msgs.c:430
        mailboxes = 0x7f4db39620d8
        count = 5
        mailbox_idx = 5
#18 0x0000000000409b88 in dsync_brain_sync_msgs (brain=0xfec300) at dsync-brain.c:735
        mailboxes = {arr = {buffer = 0x1048750, element_size = 120}, v = 0x1048750, v_modifiable = 0x1048750}
        pool = 0x1048730
        ret = false
#19 0x000000000040a074 in dsync_brain_sync (brain=0xfec300) at dsync-brain.c:856
        __FUNCTION__ = "dsync_brain_sync"
#20 0x00000000004084fb in dsync_brain_subs_list_finished (brain=0xfec300) at dsync-brain.c:170
No locals.
#21 0x0000000000408729 in dsync_worker_subs_input (context=0x1043720) at dsync-brain.c:223
        list = 0x1043720
        subs = {vname = 0x0, storage_name = 0x0, ns_prefix = 0x0, last_change = 0}
        unsubs = {name_sha1 = {guid = '\000' <repeats 15 times>}, ns_prefix = 0x0, last_change = 0}
        ret = -1
#22 0x0000000000409fea in dsync_brain_sync (brain=0xfec300) at dsync-brain.c:841
        __FUNCTION__ = "dsync_brain_sync"
#23 0x0000000000408238 in dsync_brain_mailbox_list_finished (brain=0xfec300) at dsync-brain.c:99
No locals.
#24 0x0000000000408388 in dsync_worker_mailbox_input (context=0xffe8d0) at dsync-brain.c:126
        list = 0xffe8d0
        dsync_box = {name = 0x0, name_sep = 0 '\000', name_sha1 = {guid = '\000' <repeats 15 times>}, mailbox_guid = {guid = '\000' <repeats 15 times>}, uid_validity = 0, uid_next = 0, message_count = 0, 
          first_recent_uid = 0, highest_modseq = 0, last_change = 0, flags = 0, cache_fields = {arr = {buffer = 0x0, element_size = 0}, v = 0x0, v_modifiable = 0x0}}
        dup_box = 0xfff7b8
        ret = -1
#25 0x0000000000409f4e in dsync_brain_sync (brain=0xfec300) at dsync-brain.c:832
        __FUNCTION__ = "dsync_brain_sync"
#26 0x000000000040a16b in dsync_brain_sync_all (brain=0xfec300) at dsync-brain.c:896
        old_state = DSYNC_STATE_GET_MAILBOXES
        __FUNCTION__ = "dsync_brain_sync_all"
#27 0x0000000000407b2b in main (argc=5, argv=0xfc2370) at dsync.c:308
        set_parser = 0xfda330
        set_line = 0xfbb9b0 "mail_location=maildir:/tmp/Maildir"
        ssflags = 130
        brain_flags = DSYNC_BRAIN_FLAG_VERBOSE
        storage_service = 0xfc3ea0
        service_user = 0xfc4830
        input = {module = 0x4176f4 "mail", service = 0x4175c2 "dsync", username = 0xfc23aa "test-1@example.com", 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 = 0, 
          flags_override_remove = 0, no_userdb_lookup = 0}
        mail_user = 0xfddbe0
        mail_user2 = 0xfe7c70
        worker1 = 0xfe4020
        worker2 = 0xfedcc0
        workertmp = 0x7fff00000001
        error = 0x0
        username = 0xfc23aa "test-1@example.com"
        cmd_name = 0xfc23bd "mirror"
        mailbox = 0x0
        local_location = 0xfc23c4 "maildir:/tmp/Maildir"
        remote_cmd_args = 0x0
        path1 = 0xfbc760 "/srv/mail/e/70002/70010/mdbox/mailboxes"
        path2 = 0xfed700 "/tmp/Maildir"
        dsync_server = false
        unexpected_changes = false
        dsync_debug = false
        reverse_workers = false
        alt_char = 95 '_'
        c = -1
        ret = 32767
        fd_in = 0
        fd_out = 1
        __FUNCTION__ = "main"