.
Thread 3 (Thread 1749):
#0  0x00007fbedcb8be33 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = 18446744073709551100
        oldtype = 0
        result = <value optimized out>
#1  0x00007fbedd7c1104 in g_main_context_poll (context=0xc86bd0, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.4/./glib/gmain.c:3404
        poll_func = 0x7fbedd7d1130 <g_poll>
#2  g_main_context_iterate (context=0xc86bd0, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.4/./glib/gmain.c:3086
        max_priority = 2147483647
        timeout = -1
        some_ready = <value optimized out>
        nfds = 3
        allocated_nfds = <value optimized out>
        fds = 0xc88390
#3  0x00007fbedd7c19f2 in g_main_loop_run (loop=0xc86bb0) at /build/buildd/glib2.0-2.28.4/./glib/gmain.c:3299
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007fbede1a6d44 in gdbus_shared_thread_func (data=<value optimized out>) at /build/buildd/glib2.0-2.28.4/./gio/gdbusprivate.c:276
No locals.
#5  0x00007fbedd7e83e4 in g_thread_create_proxy (data=0xc86cb0) at /build/buildd/glib2.0-2.28.4/./glib/gthread.c:1897
        thread = 0xc86cb0
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#6  0x00007fbeddedad8c in start_thread (arg=0x7fbeda63a700) at pthread_create.c:304
        pd = 0x7fbeda63a700
        now = <value optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140457684477696, 6438454209246668158, 140735425942256, 140457684478400, 0, 3, -6474963251185310338, -6474979828165499522}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        robust = <value optimized out>
        sp = <value optimized out>
        freesize = <value optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fbedcb98f7d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 1830):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
No locals.
#1  0x00007fbedc43f392 in g_cond_timed_wait_posix_impl (cond=<value optimized out>, entered_mutex=<value optimized out>, abs_time=<value optimized out>) at /build/buildd/glib2.0-2.28.4/./gthread/gthread-posix.c:242
        result = <value optimized out>
        end_time = {tv_sec = 1301600909, tv_nsec = 266720000}
        timed_out = <value optimized out>
        __PRETTY_FUNCTION__ = "g_cond_timed_wait_posix_impl"
#2  0x00007fbedd7962af in g_async_queue_pop_intern_unlocked (queue=0xc8f580, try=0, end_time=0x7fbed0ff8d50) at /build/buildd/glib2.0-2.28.4/./glib/gasyncqueue.c:423
        retval = <value optimized out>
        __PRETTY_FUNCTION__ = "g_async_queue_pop_intern_unlocked"
#3  0x00007fbedd7eab51 in g_thread_pool_wait_for_new_task (data=<value optimized out>) at /build/buildd/glib2.0-2.28.4/./glib/gthreadpool.c:274
        end_time = {tv_sec = 1301600909, tv_usec = 266720}
        task = <value optimized out>
#4  g_thread_pool_thread_proxy (data=<value optimized out>) at /build/buildd/glib2.0-2.28.4/./glib/gthreadpool.c:308
        task = 0x7fbed400d800
        pool = 0xc8ead0
#5  0x00007fbedd7e83e4 in g_thread_create_proxy (data=0xda0cf0) at /build/buildd/glib2.0-2.28.4/./glib/gthread.c:1897
        thread = 0xda0cf0
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#6  0x00007fbeddedad8c in start_thread (arg=0x7fbed0ff9700) at pthread_create.c:304
        pd = 0x7fbed0ff9700
        now = <value optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140457526925056, 6438454209246668158, 140735425940640, 140457526925760, 0, 3, -6474951396538702466, -6474979828165499522}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        robust = <value optimized out>
        sp = <value optimized out>
        freesize = <value optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fbedcb98f7d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 1686):
#0  0x00007fbedcae6d05 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = 0
        pid = <value optimized out>
        selftid = 1686
#1  0x00007fbedcaeaab6 in abort () at abort.c:92
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0, sa_sigaction = 0}, sa_mask = {__val = {140457728984190, 140457728817552, 140457762967552, 140457722747808, 140457762970064, 4294967295, 0, 4294967295, 140457726516952, 3077960, 140457726516952, 3076632, 0, 140457739204144, 13135584, 140457728729088}}, sa_flags = -554541788, sa_restorer = 0x7fbe00000005}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007fbedd1296dd in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#3  0x00007fbedd127926 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#4  0x00007fbedd127953 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#5  0x00007fbedd127a5e in __cxa_throw () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#6  0x00007fbedd3c0ecf in docid_zero_invalid () at ../api/omdatabase.cc:56
No locals.
#7  0x00007fbedd3c1ccb in Xapian::Database::get_document (this=<value optimized out>, did=<value optimized out>) at ../api/omdatabase.cc:442
        multiplier = <value optimized out>
        n = <value optimized out>
        m = <value optimized out>
#8  0x0000000000411b3c in unity_package_searcher_search (searcher=0xc86ee0, search_string=0x88 <Address 0x88 out of bounds>, max_hits=0, search_type=4266812, sort=UNITY_PACKAGE_SORT_BY_NAME) at ./unity-package-search.cc:359
        __PRETTY_FUNCTION__ = "UnityPackageSearchResult* unity_package_searcher_search(UnityPackageSearcher*, const gchar*, guint, UnityPackageSearchType, UnityPackageSort)"
        matches = {internal = {dest = 0x7fff851212a8}}
        result = 0x4d
        _search_string = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x400000946 <Address 0x400000946 out of bounds>}}
        query = {internal = {dest = 0xdb9ac0}, static MatchAll = {internal = {dest = 0xc6b0a0}, static MatchAll = <same as static member of an already seen type>, static MatchNothing = {internal = {dest = 0x0}, static MatchAll = <same as static member of an already seen type>, static MatchNothing = <same as static member of an already seen type>}}, static MatchNothing = <same as static member of an already seen type>}
#9  0x000000000040a291 in unity_applications_place_daemon_prepare_zg_search_string (data=0xc85300) at daemon.c:719
        _tmp9_ = 0xc97ae0
        _tmp11_ = <value optimized out>
        _tmp13_ = 0xdb8020 "\001"
        _tmp15_ = <value optimized out>
        _tmp10_ = 0xc97ae0 "P\022\311"
        _tmp12_ = 0xdb8020 "\001"
        _tmp14_ = <value optimized out>
        s = 0x7fbedda6b630 "\240\304{\335\276\177"
        _tmp3_ = <value optimized out>
        result = 0x0
        _tmp2_ = <value optimized out>
        _tmp4_ = <value optimized out>
#10 unity_applications_place_daemon_update_entry_search_co (data=0xc85300) at daemon.c:833
        __PRETTY_FUNCTION__ = "unity_applications_place_daemon_update_entry_search_co"
#11 0x00007fbedeac89b3 in dispatch_async_callback (source_object=<value optimized out>, res=0xc85300, user_data=0xdf16b0) at zeitgeist-index.c:205
        var = <value optimized out>
        ctx = 0xdf16b0
#12 0x00007fbede1a38c5 in reply_cb (connection=<value optimized out>, res=<value optimized out>, user_data=0xc85300) at /build/buildd/glib2.0-2.28.4/./gio/gdbusproxy.c:2158
        simple = 0xc85300
        value = <value optimized out>
        error = 0x0
#13 0x00007fbede199874 in g_dbus_connection_call_done (source=<value optimized out>, result=<value optimized out>, user_data=0xe08000) at /build/buildd/glib2.0-2.28.4/./gio/gdbusconnection.c:4998
        connection = <value optimized out>
        state = 0xe08000
        error = 0x0
        reply = 0xdd56d0
        value = <value optimized out>
#14 0x00007fbede156d49 in complete_in_idle_cb (data=<value optimized out>) at /build/buildd/glib2.0-2.28.4/./gio/gsimpleasyncresult.c:757
        simple = <value optimized out>
#15 0x00007fbedd7c0bcd in g_main_dispatch (context=0xc86ee0) at /build/buildd/glib2.0-2.28.4/./glib/gmain.c:2440
        dispatch = 0x7fbedd7bc4e0 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0xc98300
        callback = 0x7fbede156d40 <complete_in_idle_cb>
        cb_funcs = 0x7fbedda6b630
        cb_data = 0x7fbed4019720
        current_source_link = {data = 0x7fbed4014c10, next = 0x0}
        need_destroy = <value optimized out>
        source = 0x7fbed4014c10
        current = 0xc87e90
        i = <value optimized out>
#16 g_main_context_dispatch (context=0xc86ee0) at /build/buildd/glib2.0-2.28.4/./glib/gmain.c:3013
No locals.
#17 0x00007fbedd7c13a8 in g_main_context_iterate (context=0xc86ee0, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.4/./glib/gmain.c:3091
        max_priority = 2147483647
        timeout = 1016
        some_ready = 1
        nfds = 7
        allocated_nfds = <value optimized out>
        fds = <value optimized out>
#18 0x00007fbedd7c19f2 in g_main_loop_run (loop=0xdcbb50) at /build/buildd/glib2.0-2.28.4/./glib/gmain.c:3299
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#19 0x00007fbede1800fd in g_application_run (application=0xdb71e0, argc=<value optimized out>, argv=0x0) at /build/buildd/glib2.0-2.28.4/./gio/gapplication.c:1322
        arguments = 0xdcbb50
        status = 0
        i = <value optimized out>
        __PRETTY_FUNCTION__ = "g_application_run"
#20 0x000000000040b9d0 in unity_applications_place_dbus_name_has_owner (name=0x0) at main.c:84
        result = 0
        has_owner = 0
        _tmp0_ = 0x0
        bus = <value optimized out>
        _tmp1_ = 0x0
        _tmp2_ = <value optimized out>
        _tmp3_ = 0x0
        _tmp4_ = <value optimized out>
        _tmp5_ = 0x0
        _tmp6_ = <value optimized out>
        _result_ = <value optimized out>
        _inner_error_ = 0x100000000
        __PRETTY_FUNCTION__ = "unity_applications_place_dbus_name_has_owner"
#21 0x0000000000000000 in ?? ()
No symbol table info available.