Core was generated by `dovecot/imap'.
Program terminated with signal 11, Segmentation fault.
[New process 27049]
#0  0x00000000 in ?? ()
#0  0x00000000 in ?? ()
No symbol table info available.
#1  0xf72a3ca6 in fts_backend_lookup_multi (backend=0x96ba7f0, boxes=0x968d2a8, args=0x970e650, and_args=<value optimized out>, result=0xffc3bb98) at fts-api.c:323
	__FUNCTION__ = "fts_backend_lookup_multi"
#2  0xf72a7f64 in fts_search_lookup_level (fctx=0x96ecd68, args=0x970e650, and_args=true) at fts-search.c:187
	_data_stack_cur_id = 4
#3  0xf72a83db in fts_search_lookup (fctx=0x96ecd68) at fts-search.c:350
	last_uid = 0
	seq1 = 1
	seq2 = 499
	__FUNCTION__ = "fts_search_lookup"
#4  0xf72a9d27 in fts_mailbox_search_init (t=0x9704820, args=0x970e5d8, sort_program=0x0, wanted_fields=0, wanted_headers=0x0) at fts-storage.c:199
	flist = (struct fts_mailbox_list *) 0x96bf588
	ctx = (struct mail_search_context *) 0x96eca10
	fctx = (struct fts_search_context *) 0x96ecd68
#5  0xf76cbec7 in mailbox_search_init (t=0x9704820, args=0x970e5d8, sort_program=0x0, wanted_fields=0, wanted_headers=0x0) at mail-storage.c:1402
No locals.
#6  0x0805d6d1 in imap_search_start (ctx=0x96c1f20, sargs=0x970e5d8, sort_program=0x0) at imap-search.c:550
	cmd = (struct client_command_context *) 0x96c1e80
#7  0x08053a56 in cmd_search (cmd=0x96c1e80) at cmd-search.c:45
	ctx = <value optimized out>
	sargs = (struct mail_search_args *) 0x970e5d8
	args = (const struct imap_arg *) 0x96c46b0
	charset = 0x80616d8 "UTF-8"
	ret = <value optimized out>
#8  0x08057a93 in command_exec (cmd=0x96c1e80) at imap-commands.c:148
	hook = (const struct command_hook *) 0x9696260
	ret = false
#9  0x080569cf in client_command_input (cmd=0x96c1e80) at imap-client.c:682
	client = (struct client *) 0x96c1468
	command = <value optimized out>
	__FUNCTION__ = "client_command_input"
#10 0x08056a71 in client_command_input (cmd=0x96c1e80) at imap-client.c:733
	client = (struct client *) 0x96c1468
	command = (struct command *) 0x96ba7f0
	__FUNCTION__ = "client_command_input"
#11 0x08056bed in client_handle_input (client=0x96c1468) at imap-client.c:774
	_data_stack_cur_id = 3
	ret = false
	remove_io = <value optimized out>
	handled_commands = false
	__FUNCTION__ = "client_handle_input"
#12 0x080575ef in client_input (client=0x96c1468) at imap-client.c:825
	cmd = <value optimized out>
	output = (struct ostream *) 0x96c1d94
	bytes = <value optimized out>
	__FUNCTION__ = "client_input"
#13 0xf76286d2 in io_loop_call_io (io=0x96c1df8) at ioloop.c:379
	ioloop = (struct ioloop *) 0x96953f8
	t_id = 2
#14 0xf7629890 in io_loop_handler_run (ioloop=0x96953f8) at ioloop-epoll.c:213
	ctx = (struct ioloop_handler_context *) 0x96955e0
	event = (const struct epoll_event *) 0x9695620
	list = (struct io_list *) 0x96c1e28
	io = (struct io_file *) 0x968d2a8
	tv = {tv_sec = 1799, tv_usec = 999708}
	msecs = <value optimized out>
	ret = 1
	i = 0
	j = 0
	call = 80
#15 0xf7628660 in io_loop_run (ioloop=0x96953f8) at ioloop.c:398
No locals.
#16 0xf7611dcd in master_service_run (service=0x9695328, callback=0x8060750 <client_connected>) at master-service.c:543
No locals.
#17 0x08060614 in main (argc=1329791025, argv=0x4749464e) at main.c:389
	login_set = {auth_socket_path = 0x968d068 "/usr/local/var/run/dovecot/auth-master", postlogin_socket_path = 0x0, postlogin_timeout_secs = 60, callback = 0x80608f0 <login_client_connected>, failure_callback = 0x8060890 <login_client_failed>}
	service_flags = <value optimized out>
	storage_service_flags = MAIL_STORAGE_SERVICE_FLAG_DISALLOW_ROOT
	username = 0x0
	c = <value optimized out>
	set_roots = {0x80632e0, 0x0}