.
Thread 3 (Thread 0x7f6fa56a6700 (LWP 3225)):
#0  0x00007f6faee979e3 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  0x00007f6fae40fde4 in g_main_context_poll (n_fds=1, fds=0x7f6fa00010e0, timeout=-1, context=0x16748e0, priority=<optimized out>) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3584
        poll_func = 0x7f6fae41df30 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x16748e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3285
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = <optimized out>
        fds = 0x7f6fa00010e0
#3  0x00007f6fae40ff04 in g_main_context_iteration (context=context@entry=0x16748e0, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3351
        retval = <optimized out>
#4  0x00007f6fa56ad35d in dconf_gdbus_worker_thread (user_data=0x16748e0) at dconf-gdbus-thread.c:81
        context = 0x16748e0
#5  0x00007f6fae433915 in g_thread_proxy (data=0x1670850) at /build/buildd/glib2.0-2.33.12/./glib/gthread.c:797
        thread = 0x1670850
#6  0x00007f6fafa8fe9a in start_thread (arg=0x7f6fa56a6700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f6fa56a6700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -5853059680735829300, 140737383836688, 140117493311936, 0, 3, 5772079733415371468, 5772100053960516300}, 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"
#7  0x00007f6faeea339d 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 0x7f6fa4ea5700 (LWP 3226)):
#0  0x00007f6faee979e3 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  0x00007f6fae40fde4 in g_main_context_poll (n_fds=3, fds=0x7f6f980010c0, timeout=-1, context=0x7f6fa000aea0, priority=<optimized out>) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3584
        poll_func = 0x7f6fae41df30 <g_poll>
#2  g_main_context_iterate (context=0x7f6fa000aea0, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3285
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 3
        allocated_nfds = <optimized out>
        fds = 0x7f6f980010c0
#3  0x00007f6fae410242 in g_main_loop_run (loop=0x7f6fa000ab50) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3484
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007f6fac4e2796 in gdbus_shared_thread_func (user_data=0x7f6fa000ae70) at /build/buildd/glib2.0-2.33.12/./gio/gdbusprivate.c:277
        data = 0x7f6fa000ae70
#5  0x00007f6fae433915 in g_thread_proxy (data=0x7f6fa0009540) at /build/buildd/glib2.0-2.33.12/./glib/gthread.c:797
        thread = 0x7f6fa0009540
#6  0x00007f6fafa8fe9a in start_thread (arg=0x7f6fa4ea5700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f6fa4ea5700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -5853059680735829300, 140117493308272, 140117484919232, 0, 3, 5772076435417359052, 5772100053960516300}, 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"
#7  0x00007f6faeea339d 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 0x7f6fafea0700 (LWP 3222)):
#0  0x00007f6fa5ae7c23 in ?? ()
No symbol table info available.
#1  0x00000000013a7220 in ?? ()
No symbol table info available.
#2  0x00000000018720a0 in ?? ()
No symbol table info available.
#3  0x00000000018720a0 in ?? ()
No symbol table info available.
#4  0x0000000001630d80 in ?? ()
No symbol table info available.
#5  0x00007ffff9c529d0 in ?? ()
No symbol table info available.
#6  0x00007f6fa5ae933b in ?? ()
No symbol table info available.
#7  0x00000000018720a0 in ?? ()
No symbol table info available.
#8  0x00000000018720a0 in ?? ()
No symbol table info available.
#9  0x00000000018720a0 in ?? ()
No symbol table info available.
#10 0x00000000018720a0 in ?? ()
No symbol table info available.
#11 0x0000000001630d80 in ?? ()
No symbol table info available.
#12 0x00007f6fa5aecd4b in ?? ()
No symbol table info available.
#13 0x00000000018720a0 in ?? ()
No symbol table info available.
#14 0x0000000000000001 in ?? ()
No symbol table info available.
#15 0x0000000000000000 in ?? ()
No symbol table info available.