.
Thread 3 (process 21053):
#0  0x00007f12d5f294b3 in *__GI___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  0x00000000000065fc in ?? ()
No symbol table info available.
#2  0x01000000ffffffff in ?? ()
No symbol table info available.
#3  0x0000000000000002 in ?? ()
No symbol table info available.
#4  0x0000000000ed6490 in ?? ()
No symbol table info available.
#5  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (process 21050):
#0  0x00007f12d5f294b3 in *__GI___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  0x0000000000dee370 in ?? ()
No symbol table info available.
#2  0x00000000ffffffff in ?? ()
No symbol table info available.
#3  0x0000000000000003 in ?? ()
No symbol table info available.
#4  0x0000000000dee370 in ?? ()
No symbol table info available.
#5  0x0000000000000001 in ?? ()
No symbol table info available.
#6  0x00007f12d68ec2a0 in g_main_context_iterate (context=0xd00220, 
    block=<value optimized out>, dispatch=1)
    at /build/buildd/glib2.0-2.27.92/glib/gmain.c:4319
	max_priority = 2147483647
	timeout = -1
	some_ready = <value optimized out>
	nfds = 3
	allocated_nfds = <value optimized out>
	fds = (GPollFD *) 0xdee370
#7  0x00007f12d71f4000 in ?? ()
No symbol table info available.
#8  0x00007f12d6b967a8 in test_run_name () from /lib/libglib-2.0.so.0
No symbol table info available.
#9  0x00000001d61e3e40 in ?? ()
No symbol table info available.
#10 0x00007f12d6b967e0 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#11 0x0000000000d0020c in ?? ()
No symbol table info available.
#12 0x7fffffffffffffff in ?? ()
No symbol table info available.
#13 0x0000000000000003 in ?? ()
No symbol table info available.
#14 0x0000000000d00200 in ?? ()
No symbol table info available.
#15 0x00007f12d61e23d0 in ?? () at pthread_mutex_lock.c:297
   from /lib/libpthread.so.0
No symbol table info available.
#16 0x00007f12d6b96ec0 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#17 0x0000000000d0020c in ?? ()
No symbol table info available.
#18 0x00007f12d61e23d0 in ?? () at pthread_mutex_lock.c:297
   from /lib/libpthread.so.0
No symbol table info available.
#19 0x0000000000000003 in ?? ()
No symbol table info available.
#20 0x00007f12d68ecb7a in g_main_loop_run (loop=0xdee370)
    at /build/buildd/glib2.0-2.27.92/glib/gmain.c:4319
	__PRETTY_FUNCTION__ = "g_main_loop_run"
#21 0x00007f12d72b1b54 in gdbus_shared_thread_func (
    data=<value optimized out>)
    at /build/buildd/glib2.0-2.27.92/gio/gdbusprivate.c:471
No locals.
#22 0x00007f12d69136d4 in g_thread_create_proxy (data=0xd00300)
    at /build/buildd/glib2.0-2.27.92/glib/gthread.c:1042
	thread = (GRealThread *) 0xd00300
	__PRETTY_FUNCTION__ = "g_thread_create_proxy"
#23 0x00007f12d61dfd8c in start_thread (arg=0x7f12c8d5a700)
    at allocatestack.c:304
	pd = (struct pthread *) 0x7f12c8d5a700
	now = <value optimized out>
	unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139718655584000, 
        -5687548597017201954, 139718663973392, 139718655584704, 0, 3, 
        5707280105095869150, 5707301615378150110}, 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"
#24 0x00007f12d5f3661d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#25 0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (process 21038):
#0  0x00007f12d68f48f5 in g_logv (log_domain=0x7f12d75ab9a6 "Gdk", 
    log_level=<value optimized out>, format=0x7f12d75ca707 "%s", 
    args1=0x7fff92005b90)
    at /build/buildd/glib2.0-2.27.92/glib/gmessages.c:699
	depth = 0
	domain = Unhandled dwarf expression opcode 0x9f