.
Thread 3 (Thread 0x7fda61816700 (LWP 5837)):
#0  0x00007fda785a78dd in nanosleep () at ../sysdeps/unix/syscall-template.S:82
No locals.
#1  0x00007fda788226d2 in g_usleep (microseconds=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gtimer.c:253
        request = {tv_sec = 1, tv_nsec = 0}
        remaining = {tv_sec = 0, tv_nsec = 998880203}
#2  0x000000000041059f in alarm_thread () at alarm_thread.c:556
No locals.
#3  0x00007fda7881f2b6 in g_thread_create_proxy (data=0x24c1480) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x24c1480
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#4  0x00007fda7859fefc in start_thread (arg=0x7fda61816700) at pthread_create.c:304
        __res = <optimized out>
        pd = 0x7fda61816700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6293998965691931594, 140735869854064, 140575915469248, 0, 3, 6274633906157364278, 6274580782858478646}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        robust = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#5  0x00007fda782da59d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#6  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7fda6f70b700 (LWP 5830)):
#0  0x00007fda782ce473 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007fda787f9f68 in g_main_context_poll (n_fds=5, fds=0x236fd20, timeout=-1, context=0x21baa10, priority=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3402
        poll_func = 0x7fda788084c0 <g_poll>
#2  g_main_context_iterate (context=0x21baa10, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3084
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 5
        allocated_nfds = <optimized out>
        fds = 0x236fd20
#3  0x00007fda787fa792 in g_main_loop_run (loop=0x21ba9c0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007fda77348516 in gdbus_shared_thread_func (user_data=0x21ba9e0) at /build/buildd/glib2.0-2.30.0/./gio/gdbusprivate.c:276
        data = 0x21ba9e0
#5  0x00007fda7881f2b6 in g_thread_create_proxy (data=0x21bab00) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x21bab00
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#6  0x00007fda7859fefc in start_thread (arg=0x7fda6f70b700) at pthread_create.c:304
        __res = <optimized out>
        pd = 0x7fda6f70b700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6293998965691931594, 140576157645296, 140576149256640, 0, 3, 6274613418626491446, 6274580782858478646}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        robust = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fda782da59d 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 0x7fda7a0d9940 (LWP 5827)):
#0  0x00007fda7822d3a5 in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = 0
        pid = <optimized out>
        selftid = <optimized out>
#1  0x00007fda78230b0b in __GI_abort () at abort.c:92
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0, sa_sigaction = 0}, sa_mask = {__val = {140576295441357, 140576294951840, 140576327382240, 1024, 0, 39038592, 39038592, 4294967295, 140576298709440, 39137040, 39137040, 3096640, 0, 140576304043632, 33049760, 140576300945408}}, sa_flags = 2045808612, sa_restorer = 0x7fda00000005}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007fda7881d4ad in g_assertion_message (domain=<optimized out>, file=<optimized out>, line=<optimized out>, func=0x7fda79688300 "miSetExtents", message=0x2536d80 "assertion failed: (pExtents->y1 < pExtents->y2)") at /build/buildd/glib2.0-2.30.0/./glib/gtestutils.c:1425
        lstr = "337\000\377\177\000\000\220\237\207\237\377\177\000\000\240\311\366\001\000\000\000\000\346\201hy\332\177\000"
        s = 0x2552f10 "Gdk:ERROR:/build/buildd/gtk+2.0-2.24.6/gdk/gdkregion-generic.c:337:miSetExtents: assertion failed: (pExtents->y1 < pExtents->y2)"
#3  0x00007fda7881d9d2 in g_assertion_message_expr (domain=0x7fda796832d3 "Gdk", file=0x7fda79688290 "/build/buildd/gtk+2.0-2.24.6/gdk/gdkregion-generic.c", line=337, func=0x7fda79688300 "miSetExtents", expr=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gtestutils.c:1436
        s = <optimized out>
#4  0x00007fda796406ed in miSetExtents (pReg=<optimized out>) at /build/buildd/gtk+2.0-2.24.6/gdk/gdkregion-generic.c:337
        pBox = <optimized out>
        pBoxEnd = <optimized out>
        pExtents = <optimized out>
#5  0x00007fda7964b3bf in gdk_window_process_updates_internal (window=0x21b2480) at /build/buildd/gtk+2.0-2.24.6/gdk/gdkwindow.c:5487
        expose_region = <optimized out>
        update_area = 0x7fda68018830
        private = 0x21b2480
        impl_iface = <optimized out>
        save_region = 0
        clip_box = {x = 0, y = 0, width = 1745083792, height = 32730}
#6  0x00007fda7964d7d1 in IA__gdk_window_process_all_updates () at /build/buildd/gtk+2.0-2.24.6/gdk/gdkwindow.c:5696
        private = 0x21b2480
        old_update_windows = 0x235ae60
        tmp_list = 0x235ae60
        in_process_all_updates = 1
        got_recursive_update = 0
#7  0x00007fda7964d839 in gdk_window_update_idle (data=<optimized out>) at /build/buildd/gtk+2.0-2.24.6/gdk/gdkwindow.c:5322
No locals.
#8  0x00007fda7962ad26 in gdk_threads_dispatch (data=0x254aba0) at /build/buildd/gtk+2.0-2.24.6/gdk/gdk.c:512
        dispatch = 0x254aba0
        ret = 0
#9  0x00007fda787f9a5d in g_main_dispatch (context=0x1f84ca0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:2441
        dispatch = 0x7fda787f5790 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0x254aba0
        callback = 0x7fda7962acd0 <gdk_threads_dispatch>
        cb_funcs = 0x7fda78aa9670
        cb_data = 0x7fda6803f6d0
        current_source_link = {data = 0x7fda6803dd90, next = 0x0}
        need_destroy = <optimized out>
        source = 0x7fda6803dd90
        current = 0x237d7c0
        i = <optimized out>
#10 g_main_context_dispatch (context=0x1f84ca0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3011
No locals.
#11 0x00007fda787fa258 in g_main_context_iterate (context=0x1f84ca0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3089
        max_priority = 2147483647
        timeout = -1
        some_ready = 1
        nfds = 5
        allocated_nfds = <optimized out>
        fds = <optimized out>
#12 0x00007fda787fa792 in g_main_loop_run (loop=0x21c8580) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#13 0x00007fda799f3db7 in IA__gtk_main () at /build/buildd/gtk+2.0-2.24.6/gtk/gtkmain.c:1329
        tmp_list = <optimized out>
        functions = 0x0
        init = <optimized out>
        loop = 0x21c8580
#14 0x0000000000408167 in main (argc=1, argv=0x7fff9f87a388) at main.c:127
        key = 0x1fcd630
        error = 0x0
        window = 0x2107be0