.
Thread 3 (Thread 0x7f8a70d8f700 (LWP 3158)):
#0  0x00007f8a8c6f2dc3 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  0x00007f8a8cc2df26 in g_main_context_poll (n_fds=3, fds=0x7f8a6c0010e0, timeout=-1, context=0x7f8a907cf250, priority=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3412
        poll_func = 0x7f8a8cc3ae80 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7f8a907cf250, self=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3113
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7f8a6c0010e0
        max_priority = 2147483647
        nfds = 3
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x7f8a907cf250, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3055
        some_ready = 1811943648
#4  0x00007f8a8cc2e38a in g_main_loop_run (loop=0x7f8a907cd8a0) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3312
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#5  0x00007f8a8d1f8e46 in gdbus_shared_thread_func (user_data=0x7f8a907cf220) at /build/buildd/glib2.0-2.31.16/./gio/gdbusprivate.c:276
        data = 0x7f8a907cf220
#6  0x00007f8a8cc4f5c5 in g_thread_proxy (data=0x7f8a907cd140) at /build/buildd/glib2.0-2.31.16/./glib/gthread.c:801
        thread = 0x7f8a907cd140
#7  0x00007f8a8c9d0e9a in start_thread (arg=0x7f8a70d8f700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f8a70d8f700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -5394611758480549664, 140735581016928, 140232575482304, 0, 3, 5347633689104685280, 5347853077147752672}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007f8a8c6fe77d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7f8a6bdf7700 (LWP 3160)):
#0  0x00007f8a8c6f2dc3 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  0x00007f8a8cc2df26 in g_main_context_poll (n_fds=1, fds=0x7f8a640010e0, timeout=-1, context=0x7f8a90956300, priority=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3412
        poll_func = 0x7f8a8cc3ae80 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7f8a90956300, self=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3113
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7f8a640010e0
        max_priority = 2147483647
        nfds = 1
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x7f8a90956300, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3055
        some_ready = 1677725920
#4  0x00007f8a8cc2e38a in g_main_loop_run (loop=0x7f8a640010c0) at /build/buildd/glib2.0-2.31.16/./glib/gmain.c:3312
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#5  0x00007f8a6bdfc75b in dconf_context_thread (data=0x7f8a90956300) at dconfcontext.c:11
        context = 0x7f8a90956300
        loop = <optimized out>
        __PRETTY_FUNCTION__ = "dconf_context_thread"
#6  0x00007f8a8cc4f5c5 in g_thread_proxy (data=0x7f8a90881230) at /build/buildd/glib2.0-2.31.16/./glib/gthread.c:801
        thread = 0x7f8a90881230
#7  0x00007f8a8c9d0e9a in start_thread (arg=0x7f8a6bdf7700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f8a6bdf7700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -5394611758480549664, 140735581016128, 140232492022208, 0, 3, 5347649138102048992, 5347853077147752672}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007f8a8c6fe77d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7f8a8ef03940 (LWP 3156)):
#0  0x00007f8a8298fd41 in gvc_mixer_ui_device_set_profiles (device=<optimized out>, in_profiles=0x7f8a8cee97a0) at gvc-mixer-ui-device.c:514
        t = <optimized out>
        profile_descriptions = 0x0
        is_input = -1869186176
        is_output = <optimized out>
        identical = <optimized out>
        shortened_profiles = <optimized out>
        x = <optimized out>
        y = <optimized out>
        final_keys = <optimized out>
        o = <optimized out>
#1  0x00007f8a829970b8 in gvc_mixer_control_change_output (control=0x7f8a90c76520, output=<optimized out>) at gvc-mixer-control.c:587
        stream = 0x7f8a82996d22
        default_stream = <optimized out>
        active_port = 0x7f8a90967b80
        output_port = 0xffffffff8e504a80 <Address 0xffffffff8e504a80 out of bounds>
#2  0x00007f8a82982046 in _gtk_label_make_bold (label=0x0) at gvc-mixer-dialog.c:1416
        font_desc = 0x7f8a909d6020
#3  0x00007f8a9095c600 in ?? ()
No symbol table info available.
#4  0x0000000000000000 in ?? ()
No symbol table info available.