Thread 8 (Thread 0x7fffe37fe700 (LWP 20)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff73c3d03 in g_cond_wait (cond=cond@entry=0x5555558bf6b8, mutex=mutex@entry=0x5555558bf6b0) at ../glib/gthread-posix.c:1545
#2  0x00007ffff734058b in g_async_queue_pop_intern_unlocked (queue=0x5555558bf6b0, wait=1, end_time=-1) at ../glib/gasyncqueue.c:419
#3  0x00007ffff7340a3c in g_async_queue_pop (queue=0x5555558bf6b0) at ../glib/gasyncqueue.c:453
#4  0x00007ffff7f0a1f5 in action_thread_main (db=<optimized out>) at rhythmdb.c:3021
#5  0x00007ffff739b2a1 in g_thread_proxy (data=0x555556a39920) at ../glib/gthread.c:820
#6  0x00007ffff63634d2 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007ffff724e323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ffff2133700 (LWP 15)):
#0  0x00007ffff724353f in __GI___poll (fds=0x7fffe4006be0, nfds=7, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff737177e in g_main_context_poll (priority=<optimized out>, n_fds=7, fds=0x7fffe4006be0, timeout=<optimized out>, context=0x555555768970) at ../glib/gmain.c:4422
#2  g_main_context_iterate (context=0x555555768970, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4114
#3  0x00007ffff7371b03 in g_main_loop_run (loop=0x555555768a60) at ../glib/gmain.c:4317
#4  0x00007ffff6856aba in gdbus_shared_thread_func (user_data=0x555555768940) at ../gio/gdbusprivate.c:280
#5  0x00007ffff739b2a1 in g_thread_proxy (data=0x5555557506a0) at ../glib/gthread.c:820
#6  0x00007ffff63634d2 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007ffff724e323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ffff2934700 (LWP 14)):
#0  0x00007ffff724353f in __GI___poll (fds=0x555555750da0, nfds=2, timeout=6891) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff737177e in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x555555750da0, timeout=<optimized out>, context=0x555555752320) at ../glib/gmain.c:4422
#2  g_main_context_iterate (context=context@entry=0x555555752320, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4114
#3  0x00007ffff73718b3 in g_main_context_iteration (context=0x555555752320, may_block=may_block@entry=1) at ../glib/gmain.c:4184
#4  0x00007ffff7371901 in glib_worker_main (data=<optimized out>) at ../glib/gmain.c:6077
#5  0x00007ffff739b2a1 in g_thread_proxy (data=0x5555555baa40) at ../glib/gthread.c:820
#6  0x00007ffff63634d2 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007ffff724e323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ffff2ccc9c0 (LWP 10)):
#0  __GI_raise (sig=<optimized out>) at ../sysdeps/unix/sysv/linux/raise.c:50
#4  0x00007ffff747eda3 in <emit signal ??? on instance 0x5555557650a0 [GDBusConnection]> (instance=<optimized out>, signal_id=<optimized out>, detail=detail@entry=0) at ../gobject/gsignal.c:3551
    #1  0x00007ffff74658fa in g_closure_invoke (closure=closure@entry=0x555555754340, return_value=return_value@entry=0x0, n_param_values=3, param_values=param_values@entry=0x7fffffffd6b0, invocation_hint=invocation_hint@entry=0x7fffffffd630) at ../gobject/gclosure.c:810
    #2  0x00007ffff7477f0e in signal_emit_unlocked_R (node=node@entry=0x555555752aa0, detail=detail@entry=0, instance=instance@entry=0x5555557650a0, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fffffffd6b0) at ../gobject/gsignal.c:3777
    #3  0x00007ffff747ec41 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffffffd860) at ../gobject/gsignal.c:3495
#5  0x00007ffff6840c76 in emit_closed_in_idle (user_data=0x7fffe40140d0) at ../gio/gdbusconnection.c:1379
#6  0x00007ffff737143f in g_main_dispatch (context=0x55555557c380) at ../glib/gmain.c:3325
#7  g_main_context_dispatch (context=0x55555557c380) at ../glib/gmain.c:4043
#8  0x00007ffff73717e8 in g_main_context_iterate (context=context@entry=0x55555557c380, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4119
#9  0x00007ffff73718b3 in g_main_context_iteration (context=context@entry=0x55555557c380, may_block=may_block@entry=1) at ../glib/gmain.c:4184
#10 0x00007ffff681958d in g_application_run (application=0x555555586140 [RBApplication], argc=-9612, argc@entry=1, argv=argv@entry=0x7fffffffde28) at ../gio/gapplication.c:2559
#11 0x00007ffff7e8d89d in rb_application_run (app=0x555555586140 [RBApplication], argc=<optimized out>, argv=0x7fffffffde28) at rb-application.c:595
#12 0x0000555555555319 in main (argc=1, argv=0x7fffffffde28) at main.c:89