Core was generated by `dovecot/indexer-worker'.
Program terminated with signal 11, Segmentation fault.
#0  i_stream_ref (stream=0x0) at istream.c:42
42	istream.c: No such file or directory.
	in istream.c
(gdb) bt full
#0  i_stream_ref (stream=0x0) at istream.c:42
No locals.
#1  0x00007f13f5497ed0 in fts_tika_parser_response (response=0x7fffd5910230, parser=0x660460) at fts-parser-tika.c:87
        __FUNCTION__ = "fts_tika_parser_response"
#2  0x00007f13f646e07d in http_client_request_callback (req=0x6690d0, response=0xc8) at http-client-request.c:767
        callback = 0x7f13f5497e00 <fts_tika_parser_response>
        orig_attempts = 0
#3  0x00007f13f646f5f2 in http_client_connection_return_response (conn=0x66c780, req=0x6690d0, response=0x7fffd5910230) at http-client-connection.c:456
        payload = <value optimized out>
        retrying = <value optimized out>
        __FUNCTION__ = "http_client_connection_return_response"
#4  0x00007f13f6470b12 in http_client_connection_input (_conn=<value optimized out>) at http-client-connection.c:640
        aborted = false
        conn = 0x0
        response = {version_major = 1 '\001', version_minor = 1 '\001', status = 200, reason = 0x672380 "OK", location = 0x0, date = 1408020040, retry_after = -1, header = 0x671fe0, payload = 0x0, headers = {arr = {buffer = 0x671ff0, 
              element_size = 24}, v = 0x671ff0, v_modifiable = 0x671ff0}, connection_options = {arr = {buffer = 0x672328, element_size = 8}, v = 0x672328, v_modifiable = 0x672328}, connection_close = 0}
        req = 0x6690d0
        finished = 0
        ret = <value optimized out>
        error = <value optimized out>
        payload_type = <value optimized out>
        __FUNCTION__ = "http_client_connection_input"
#5  0x00007f13f64aa0bc in io_loop_call_io (io=0x66bad0) at ioloop.c:441
        ioloop = 0x66cd30
        t_id = 6
        __FUNCTION__ = "io_loop_call_io"
#6  0x00007f13f64ab7dd in io_loop_handler_run_internal (ioloop=<value optimized out>) at ioloop-epoll.c:220
        ctx = <value optimized out>
        event = 0x66bd60
        list = 0x66bb30
        io = 0x0
        tv = {tv_sec = 2147483, tv_usec = 0}
        events_count = <value optimized out>
        msecs = <value optimized out>
        ret = 1
        i = 0
        call = 200
        __FUNCTION__ = "io_loop_handler_run_internal"
#7  0x00007f13f64aa159 in io_loop_handler_run (ioloop=0x0) at ioloop.c:488
No locals.
#8  0x00007f13f64aa1d8 in io_loop_run (ioloop=0x66cd30) at ioloop.c:465
        __FUNCTION__ = "io_loop_run"
#9  0x00007f13f646e58d in http_client_request_continue_payload (_req=0x660490, data=0x0, size=0) at http-client-request.c:496
        prev_ioloop = 0x60d720
        req = 0x6690d0
        conn = 0x66c780
        client = 0x65ffc0
        ret = <value optimized out>
        __FUNCTION__ = "http_client_request_continue_payload"
#10 0x00007f13f5497acc in fts_parser_tika_more (_parser=0x660460, block=0x660460) at fts-parser-tika.c:161
        data = <value optimized out>
        size = <value optimized out>
        ret = <value optimized out>
        __FUNCTION__ = "fts_parser_tika_more"
#11 0x00007f13f54969d7 in fts_parser_more (parser=0x0, block=0x7fffd5910440) at fts-parser.c:67
No locals.
#12 0x00007f13f5494d2f in fts_body_parser_finish (ctx=0x7fffd59104b0) at fts-build-mail.c:256
        block = {part = 0x0, hdr = 0x0, data = 0x0, size = 0}
        ret = <value optimized out>
#13 0x00007f13f549530d in fts_build_mail_real (update_ctx=0x649b40, mail=0x63cd40) at fts-build-mail.c:361
        __FUNCTION__ = "fts_build_mail_real"
#14 fts_build_mail (update_ctx=0x649b40, mail=0x63cd40) at fts-build-mail.c:386
---Type <return> to continue, or q <return> to quit---
        _data_stack_cur_id = 5
        ret = <value optimized out>
#15 0x00007f13f549a404 in fts_mail_index (_mail=0x63cd40) at fts-storage.c:451
No locals.
#16 fts_mail_precache (_mail=0x63cd40) at fts-storage.c:468
        _data_stack_cur_id = 4
        fmail = 0x6395b0
#17 0x0000000000402522 in master_connection_input ()
No symbol table info available.
#18 0x00007f13f64aa0bc in io_loop_call_io (io=0x612000) at ioloop.c:441
        ioloop = 0x60d720
        t_id = 2
        __FUNCTION__ = "io_loop_call_io"
#19 0x00007f13f64ab7dd in io_loop_handler_run_internal (ioloop=<value optimized out>) at ioloop-epoll.c:220
        ctx = <value optimized out>
        event = 0x6113b0
        list = 0x612060
        io = 0x0
        tv = {tv_sec = 2147483, tv_usec = 0}
        events_count = <value optimized out>
        msecs = <value optimized out>
        ret = 1
        i = 0
        call = 200
        __FUNCTION__ = "io_loop_handler_run_internal"
#20 0x00007f13f64aa159 in io_loop_handler_run (ioloop=0x0) at ioloop.c:488
No locals.
#21 0x00007f13f64aa1d8 in io_loop_run (ioloop=0x60d720) at ioloop.c:465
        __FUNCTION__ = "io_loop_run"
#22 0x00007f13f6459293 in master_service_run (service=0x60d5b0, callback=0x660460) at master-service.c:566
No locals.
#23 0x0000000000401f8b in main ()