(ardour-6.0.pre0.654:5806): GLib-GObject-CRITICAL **: 15:38:40.536: g_object_ref: assertion 'G_IS_OBJECT (object)' failed Thread 1 "ardour-6.0.pre0" received signal SIGTRAP, Trace/breakpoint trap. _g_log_abort (breakpoint=breakpoint@entry=1) at gmessages.c:583 583 } (gdb) thread apply all bt Thread 39 (Thread 0x7fffc576a700 (LWP 5856)): #0 0x00007ffff05ce260 in nanosleep () at /usr/lib/libpthread.so.0 #1 0x00007ffff36a71b1 in g_usleep (microseconds=) at gtimer.c:259 #2 0x00007ffff67ed3ed in ARDOUR::AutomationWatch::thread() () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff67f32af in boost::_mfi::mf0::operator()(ARDOUR::AutomationWatch*) const () at /usr/lib/ardour6/libardour.so.3 #4 0x00007ffff67f2e6f in void boost::_bi::list1 >::operator(), boost::_bi::list0>(boost::_bi::type, boost::_mfi::mf0&, boost::_bi::list0&, int) () at /usr/lib/ardour6/libardour.so.3 #5 0x00007ffff67f25a2 in boost::_bi::bind_t, boost::_bi::list1 > >::operator()() () at /usr/lib/ardour6/libardour.so.3 #6 0x00007ffff67f24f2 in sigc::adaptor_functor, boost::_bi::list1 > > >::operator()() const () at /usr/lib/ardour6/libardour.so.3 #7 0x00007ffff67f1e27 in sigc::internal::slot_call0, boost::_bi::list1 > >, void>::call_it(sigc::internal::slot_rep*) () at /usr/lib/ardour6/libardour.so.3 #8 0x00007ffff3be8cbd in () at /usr/lib/libglibmm-2.4.so.1 #9 0x00007ffff36a5a2a in g_thread_proxy (data=0x555559dd5e80) at gthread.c:784 #10 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #11 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 38 (Thread 0x7fffab7fe700 (LWP 5855)): #0 0x00007ffff05ca3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007ffff6dbac5f in ARDOUR::Session::auto_connect_thread_run() () at /usr/lib/ardour6/libardour.so.3 #2 0x00007ffff6dba9a2 in ARDOUR::Session::auto_connect_thread(void*) () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 37 (Thread 0x7fffaaffd700 (LWP 5854)): #0 0x00007ffff05ca3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007ffff6e366fb in ARDOUR::Session::emit_thread_run() () at /usr/lib/ardour6/libardour.so.3 #2 0x00007ffff6e36698 in ARDOUR::Session::emit_thread(void*) () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 36 (Thread 0x7fffaa7fc700 (LWP 5853)): #0 0x00007fffeef4697b in poll () at /usr/lib/libc.so.6 #1 0x00007ffff367d523 in g_main_context_poll (priority=, n_fds=5, fds=0x7fff800e26f0, timeout=, context=0x555558d65db0) at gmain.c:4204 #2 0x00007ffff367d523 in g_main_context_iterate (context=0x555558d65db0, block=block@entry=1, dispatch=dispatch@entry=1, self=) at gmain.c:3898 #3 0x00007ffff367d8e2 in g_main_loop_run (loop=0x555558d65ef0) at gmain.c:4099 #4 0x00007ffff4352643 in BaseUI::main_thread() () at /usr/lib/ardour6/libpbd.so.4 #5 0x00007ffff4356cb8 in sigc::bound_mem_functor0::operator()() const () at /usr/lib/ardour6/libpbd.so.4 #6 0x00007ffff4356940 in sigc::adaptor_functor >::operator()() const () at /usr/lib/ardour6/libpbd.so.4 #7 0x00007ffff43562c0 in sigc::internal::slot_call0, void>::call_it(sigc::internal::slot_rep*) () at /usr/lib/ardour6/libpbd.so.4 #8 0x00007ffff3be8cbd in () at /usr/lib/libglibmm-2.4.so.1 #9 0x00007ffff36a5a2a in g_thread_proxy (data=0x555558158850) at gthread.c:784 #10 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #11 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 35 (Thread 0x7fffd00a7700 (LWP 5852)): #0 0x00007fffeef4697b in poll () at /usr/lib/libc.so.6 #1 0x00007ffff436a973 in CrossThreadChannel::poll_for_request() () at /usr/lib/ardour6/libpbd.so.4 #2 0x00007ffff436a9ef in CrossThreadChannel::receive(char&, bool) () at /usr/lib/ardour6/libpbd.so.4 #3 0x00007ffff6804a87 in ARDOUR::Butler::thread_work() () at /usr/lib/ardour6/libardour.so.3 #4 0x00007ffff680481c in ARDOUR::Butler::_thread_work(void*) () at /usr/lib/ardour6/libardour.so.3 #5 0x00007ffff438fa2b in () at /usr/lib/ardour6/libpbd.so.4 #6 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #7 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 34 (Thread 0x7fffc43fbd80 (LWP 5850)): #0 0x00007ffff05cccf6 in do_futex_wait.constprop () at /usr/lib/libpthread.so.0 #1 0x00007ffff05ccde8 in __new_sem_wait_slow.constprop.0 () at /usr/lib/libpthread.so.0 #2 0x00007ffff691cc78 in PBD::Semaphore::wait() () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff691afdd in ARDOUR::Graph::run_one() () at /usr/lib/ardour6/libardour.so.3 #4 0x00007ffff691b390 in ARDOUR::Graph::helper_thread() () at /usr/lib/ardour6/libardour.so.3 #5 0x00007ffff6921edf in boost::_mfi::mf0::operator()(ARDOUR::Graph*) const () at /usr/lib/ardour6/libardour.so.3 #6 0x00007ffff69215bb in void boost::_bi::list1 >::operator(), boost::_bi::list0>(boost::_bi::type, boost::_mfi::mf0&, boost::_bi::list0&, int) () at /usr/lib/ardour6/libardour.so.3 #7 0x00007ffff6920a24 in boost::_bi::bind_t, boost::_bi::list1 > >::operator()() () at /usr/lib/ardour6/libardour.so.3 #8 0x00007ffff6920193 in boost::detail::function::void_function_obj_invoker0, boost::_bi::list1 > >, void>::invoke(boost::detail::function::function_buffer&) () at /usr/lib/ardour6/libardour.so.3 #9 0x0000555555b2197b in () #10 0x00007fffffffabcf in () #11 0x00007fffc43fb330 in () #12 0x0000000000000000 in () ---Type to continue, or q to quit--- Thread 33 (Thread 0x7fffc4415d80 (LWP 5849)): #0 0x00007ffff05cccf6 in do_futex_wait.constprop () at /usr/lib/libpthread.so.0 #1 0x00007ffff05ccde8 in __new_sem_wait_slow.constprop.0 () at /usr/lib/libpthread.so.0 #2 0x00007ffff691cc78 in PBD::Semaphore::wait() () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff691afdd in ARDOUR::Graph::run_one() () at /usr/lib/ardour6/libardour.so.3 #4 0x00007ffff691b390 in ARDOUR::Graph::helper_thread() () at /usr/lib/ardour6/libardour.so.3 #5 0x00007ffff6921edf in boost::_mfi::mf0::operator()(ARDOUR::Graph*) const () at /usr/lib/ardour6/libardour.so.3 #6 0x00007ffff69215bb in void boost::_bi::list1 >::operator(), boost::_bi::list0>(boost::_bi::type, boost::_mfi::mf0&, boost::_bi::list0&, int) () at /usr/lib/ardour6/libardour.so.3 #7 0x00007ffff6920a24 in boost::_bi::bind_t, boost::_bi::list1 > >::operator()() () at /usr/lib/ardour6/libardour.so.3 #8 0x00007ffff6920193 in boost::detail::function::void_function_obj_invoker0, boost::_bi::list1 > >, void>::invoke(boost::detail::function::function_buffer&) () at /usr/lib/ardour6/libardour.so.3 #9 0x0000555555b2197b in () #10 0x00007fffffffabcf in () #11 0x00007fffc4415330 in () #12 0x0000000000000000 in () Thread 32 (Thread 0x7fffc442fd80 (LWP 5848)): #0 0x00007ffff05cccf6 in do_futex_wait.constprop () at /usr/lib/libpthread.so.0 #1 0x00007ffff05ccde8 in __new_sem_wait_slow.constprop.0 () at /usr/lib/libpthread.so.0 #2 0x00007ffff691cc78 in PBD::Semaphore::wait() () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff691a356 in ARDOUR::Graph::restart_cycle() () at /usr/lib/ardour6/libardour.so.3 #4 0x00007ffff691a265 in ARDOUR::Graph::dec_ref() () at /usr/lib/ardour6/libardour.so.3 #5 0x00007ffff69226e5 in ARDOUR::GraphNode::finish(int) () at /usr/lib/ardour6/libardour.so.3 #6 0x00007ffff691b166 in ARDOUR::Graph::run_one() () at /usr/lib/ardour6/libardour.so.3 #7 0x00007ffff691b693 in ARDOUR::Graph::main_thread() () at /usr/lib/ardour6/libardour.so.3 #8 0x00007ffff6921edf in boost::_mfi::mf0::operator()(ARDOUR::Graph*) const () at /usr/lib/ardour6/libardour.so.3 #9 0x00007ffff69215bb in void boost::_bi::list1 >::operator(), boost::_bi::list0>(boost::_bi::type, boost::_mfi::mf0&, boost::_bi::list0&, int) () at /usr/lib/ardour6/libardour.so.3 #10 0x00007ffff6920a24 in boost::_bi::bind_t, boost::_bi::list1 > >::operator()() () at /usr/lib/ardour6/libardour.so.3 #11 0x00007ffff6920193 in boost::detail::function::void_function_obj_invoker0, boost::_bi::list1 > >, void>::invoke(boost::detail::function::function_buffer&) () at /usr/lib/ardour6/libardour.so.3 #12 0x0000555555b2197b in () #13 0x00007fffffffabcf in () #14 0x00007fffc442f330 in () #15 0x0000000000000000 in () Thread 31 (Thread 0x7fffc4449d80 (LWP 5847)): #0 0x00007ffff05cccf6 in do_futex_wait.constprop () at /usr/lib/libpthread.so.0 #1 0x00007ffff05ccde8 in __new_sem_wait_slow.constprop.0 () at /usr/lib/libpthread.so.0 #2 0x00007ffff691cc78 in PBD::Semaphore::wait() () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff6d7e624 in ARDOUR::RTTaskList::run() () at /usr/lib/ardour6/libardour.so.3 #4 0x00007ffff6d7e3c6 in ARDOUR::RTTaskList::_thread_run(void*) () at /usr/lib/ardour6/libardour.so.3 #5 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 30 (Thread 0x7fffc4463d80 (LWP 5846)): #0 0x00007ffff05cccf6 in do_futex_wait.constprop () at /usr/lib/libpthread.so.0 #1 0x00007ffff05ccde8 in __new_sem_wait_slow.constprop.0 () at /usr/lib/libpthread.so.0 #2 0x00007ffff691cc78 in PBD::Semaphore::wait() () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff6d7e624 in ARDOUR::RTTaskList::run() () at /usr/lib/ardour6/libardour.so.3 #4 0x00007ffff6d7e3c6 in ARDOUR::RTTaskList::_thread_run(void*) () at /usr/lib/ardour6/libardour.so.3 #5 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 29 (Thread 0x7fffc447dd80 (LWP 5845)): #0 0x00007ffff05cccf6 in do_futex_wait.constprop () at /usr/lib/libpthread.so.0 #1 0x00007ffff05ccde8 in __new_sem_wait_slow.constprop.0 () at /usr/lib/libpthread.so.0 #2 0x00007ffff691cc78 in PBD::Semaphore::wait() () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff6d7e624 in ARDOUR::RTTaskList::run() () at /usr/lib/ardour6/libardour.so.3 #4 0x00007ffff6d7e3c6 in ARDOUR::RTTaskList::_thread_run(void*) () at /usr/lib/ardour6/libardour.so.3 #5 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 24 (Thread 0x7fffabfff700 (LWP 5840)): #0 0x00007fffeef4b879 in syscall () at /usr/lib/libc.so.6 #1 0x00007ffff36c452d in g_cond_wait_until (cond=cond@entry=0x5555571b9518, mutex=mutex@entry=0x5555571b9510, end_time=end_time@entry=15244365969) at gthread-posix.c:1449 #2 0x00007ffff364f903 in g_async_queue_pop_intern_unlocked (queue=queue@entry=0x5555571b9510, wait=wait@entry=1, end_time=end_time@entry=15244365969) at gasyncqueue.c:422 #3 0x00007ffff364feee in g_async_queue_timeout_pop (queue=0x5555571b9510, timeout=timeout@entry=15000000) at gasyncqueue.c:543 #4 0x00007ffff36a6541 in g_thread_pool_wait_for_new_pool () at gthreadpool.c:167 ---Type to continue, or q to quit--- #5 0x00007ffff36a6541 in g_thread_pool_thread_proxy (data=) at gthreadpool.c:364 #6 0x00007ffff36a5a2a in g_thread_proxy (data=0x555557746e80) at gthread.c:784 #7 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 23 (Thread 0x7fffc4f69700 (LWP 5838)): #0 0x00007ffff05ce260 in nanosleep () at /usr/lib/libpthread.so.0 #1 0x00007ffff36a71b1 in g_usleep (microseconds=) at gtimer.c:259 #2 0x00007fffd8436ba7 in ARDOUR::DummyAudioBackend::main_process_thread() () at /usr/lib/ardour6/backends/libdummy_audiobackend.so #3 0x00007fffd843254c in () at /usr/lib/ardour6/backends/libdummy_audiobackend.so #4 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #5 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 9 (Thread 0x7fffc75bf700 (LWP 5817)): #0 0x00007fffeef4697b in poll () at /usr/lib/libc.so.6 #1 0x00007ffff367d523 in g_main_context_poll (priority=, n_fds=3, fds=0x5555571ca2c0, timeout=, context=0x5555571caac0) at gmain.c:4204 #2 0x00007ffff367d523 in g_main_context_iterate (context=0x5555571caac0, block=block@entry=1, dispatch=dispatch@entry=1, self=) at gmain.c:3898 #3 0x00007ffff367d8e2 in g_main_loop_run (loop=0x5555571c8e30) at gmain.c:4099 #4 0x00007fffebfe4328 in gdbus_shared_thread_func (user_data=0x5555571caa90) at gdbusprivate.c:275 #5 0x00007ffff36a5a2a in g_thread_proxy (data=0x55555718dd90) at gthread.c:784 #6 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #7 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 8 (Thread 0x7fffc7dc0700 (LWP 5816)): #0 0x00007fffeef4697b in poll () at /usr/lib/libc.so.6 #1 0x00007ffff367d523 in g_main_context_poll (priority=, n_fds=2, fds=0x5555571c0010, timeout=, context=0x5555571badf0) at gmain.c:4204 #2 0x00007ffff367d523 in g_main_context_iterate (context=context@entry=0x5555571badf0, block=block@entry=1, dispatch=dispatch@entry=1, self=) at gmain.c:3898 #3 0x00007ffff367d63e in g_main_context_iteration (context=0x5555571badf0, may_block=may_block@entry=1) at gmain.c:3964 #4 0x00007ffff367d692 in glib_worker_main (data=) at gmain.c:5773 #5 0x00007ffff36a5a2a in g_thread_proxy (data=0x55555718db70) at gthread.c:784 #6 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #7 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 7 (Thread 0x7fffd37fe700 (LWP 5815)): #0 0x00007fffeef4b879 in syscall () at /usr/lib/libc.so.6 #1 0x00007ffff36c4411 in g_cond_wait (cond=0x555557078bf8, mutex=0x555557078c08) at gthread-posix.c:1402 #2 0x00007ffff6791ad1 in ARDOUR::AudioEngine::do_devicelist_update() () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff679e1ef in boost::_mfi::mf0::operator()(ARDOUR::AudioEngine*) const () at /usr/lib/ardour6/libardour.so.3 #4 0x00007ffff679dc69 in void boost::_bi::list1 >::operator(), boost::_bi::list0>(boost::_bi::type, boost::_mfi::mf0&, boost::_bi::list0&, int) () at /usr/lib/ardour6/libardour.so.3 #5 0x00007ffff679d452 in boost::_bi::bind_t, boost::_bi::list1 > >::operator()() () at /usr/lib/ardour6/libardour.so.3 #6 0x00007ffff679cc40 in sigc::adaptor_functor, boost::_bi::list1 > > >::operator()() const () at /usr/lib/ardour6/libardour.so.3 #7 0x00007ffff679beef in sigc::internal::slot_call0, boost::_bi::list1 > >, void>::call_it(sigc::internal::slot_rep*) () at /usr/lib/ardour6/libardour.so.3 #8 0x00007ffff3be8cbd in () at /usr/lib/libglibmm-2.4.so.1 #9 0x00007ffff36a5a2a in g_thread_proxy (data=0x555557093940) at gthread.c:784 #10 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #11 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 6 (Thread 0x7fffd3fff700 (LWP 5814)): #0 0x00007fffeef4b879 in syscall () at /usr/lib/libc.so.6 #1 0x00007ffff36c4411 in g_cond_wait (cond=0x555557078bc8, mutex=0x555557078bd8) at gthread-posix.c:1402 #2 0x00007ffff6791866 in ARDOUR::AudioEngine::do_reset_backend() () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff679e1ef in boost::_mfi::mf0::operator()(ARDOUR::AudioEngine*) const () at /usr/lib/ardour6/libardour.so.3 #4 0x00007ffff679dc69 in void boost::_bi::list1 >::operator(), boost::_bi::list0>(boost::_bi::type, boost::_mfi::mf0&, boost::_bi::list0&, int) () at /usr/lib/ardour6/libardour.so.3 #5 0x00007ffff679d452 in boost::_bi::bind_t, boost::_bi::list1 > >::operator()() () at /usr/lib/ardour6/libardour.so.3 #6 0x00007ffff679cc40 in sigc::adaptor_functor, boost::_bi::list1 > > >::operator()() const () at /usr/lib/ardour6/libardour.so.3 #7 0x00007ffff679beef in sigc::internal::slot_call0, boost::_bi::list1 > >, void>::call_it(sigc::internal::slot_rep*) () at /usr/lib/ardour6/libardour.so.3 #8 0x00007ffff3be8cbd in () at /usr/lib/libglibmm-2.4.so.1 #9 0x00007ffff36a5a2a in g_thread_proxy (data=0x5555570938f0) at gthread.c:784 #10 0x00007ffff05c408c in start_thread () at /usr/lib/libpthread.so.0 #11 0x00007fffeef50e7f in clone () at /usr/lib/libc.so.6 Thread 5 (Thread 0x7fffdbfff700 (LWP 5813)): #0 0x00007fffeef4b879 in syscall () at /usr/lib/libc.so.6 #1 0x00007ffff36c4411 in g_cond_wait (cond=0x7ffff7663990 , mutex=0x7ffff7663980 ) at gthread-posix.c:1402 #2 0x00007ffff6741875 in ARDOUR::Analyser::work() () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff674160c in () at /usr/lib/ardour6/libardour.so.3 #4 0x0000555556371a89 in () ---Type to continue, or q to quit--- #5 0x0000000000000000 in () Thread 4 (Thread 0x7fffe0b1d700 (LWP 5812)): #0 0x00007fffeef4b879 in syscall () at /usr/lib/libc.so.6 #1 0x00007ffff36c4411 in g_cond_wait (cond=0x7ffff76665b0 , mutex=0x7ffff76665c0 ) at gthread-posix.c:1402 #2 0x00007ffff6eced9d in () at /usr/lib/ardour6/libardour.so.3 #3 0x0000555556371a89 in () #4 0x0000000000000000 in () Thread 3 (Thread 0x7fffe131e700 (LWP 5811)): #0 0x00007fffeef4b879 in syscall () at /usr/lib/libc.so.6 #1 0x00007ffff36c4411 in g_cond_wait (cond=0x7ffff76665b0 , mutex=0x7ffff76665c0 ) at gthread-posix.c:1402 #2 0x00007ffff6eced9d in () at /usr/lib/ardour6/libardour.so.3 #3 0x0000555556371a89 in () #4 0x0000000000000000 in () Thread 2 (Thread 0x7fffe1b1f700 (LWP 5810)): #0 0x00007ffff05ce260 in nanosleep () at /usr/lib/libpthread.so.0 #1 0x00007ffff36a71b1 in g_usleep (microseconds=) at gtimer.c:259 #2 0x00005555566ce5a7 in () #3 0x0000000000000000 in () Thread 1 (Thread 0x7ffff7f95940 (LWP 5806)): #0 0x00007ffff3682ed2 in _g_log_abort (breakpoint=breakpoint@entry=1) at gmessages.c:583 #1 0x00007ffff368423d in g_logv (log_domain=0x7ffff39853c4 "GLib-GObject", log_level=G_LOG_LEVEL_CRITICAL, format=, args=args@entry=0x7fffffffdc30) at gmessages.c:1391 #2 0x00007ffff36843a0 in g_log (log_domain=log_domain@entry=0x7ffff39853c4 "GLib-GObject", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, format=format@entry=0x7ffff36d0e67 "%s: assertion '%s' failed") at gmessages.c:1432 #3 0x00007ffff3684c1a in g_return_if_fail_warning (log_domain=log_domain@entry=0x7ffff39853c4 "GLib-GObject", pretty_function=pretty_function@entry=0x7ffff3988838 <__func__.14425> "g_object_ref", expression=expression@entry=0x7ffff39875fc "G_IS_OBJECT (object)") at gmessages.c:2809 #4 0x00007ffff395c71e in g_object_ref (_object=0x5555572e5b20) at gobject.c:3206 #5 0x00007ffff2f1f125 in () at /usr/lib/libgtk-x11-2.0.so.0 #6 0x00007ffff2f1b7cc in () at /usr/lib/libgtk-x11-2.0.so.0 #10 0x00007ffff3974130 in (instance=, signal_id=, detail=) at gsignal.c:3447 #7 0x00007ffff3957a4d in g_closure_invoke (closure=0x55555b1ef6e0, return_value=0x7fffffffdee0, n_param_values=2, param_values=0x7fffffffdf40, invocation_hint=0x7fffffffdec0) at gclosure.c:804 #8 0x00007ffff396ae40 in signal_emit_unlocked_R (node=node@entry=0x55555710fb60, detail=detail@entry=0, instance=instance@entry=0x5555572e8d70, emission_return=emission_return@entry=0x7fffffffe060, instance_and_params=instance_and_params@entry=0x7fffffffdf40) at gsignal.c:3635 #9 0x00007ffff3973081 in g_signal_emit_valist (instance=, signal_id=, detail=, var_args=var_args@entry=0x7fffffffe110) at gsignal.c:3401 #11 0x00007ffff3036153 in () at /usr/lib/libgtk-x11-2.0.so.0 #12 0x00007ffff2f19f1b in gtk_main_do_event () at /usr/lib/libgtk-x11-2.0.so.0 #13 0x00007ffff2b92d5e in () at /usr/lib/libgdk-x11-2.0.so.0 #14 0x00007ffff367d368 in g_main_dispatch (context=0x5555570b6020) at gmain.c:3177 #15 0x00007ffff367d368 in g_main_context_dispatch (context=context@entry=0x5555570b6020) at gmain.c:3830 #16 0x00007ffff367d5b1 in g_main_context_iterate (context=0x5555570b6020, block=block@entry=1, dispatch=dispatch@entry=1, self=) at gmain.c:3903 #17 0x00007ffff367d8e2 in g_main_loop_run (loop=0x55555a3d8090) at gmain.c:4099 #18 0x00007ffff2f18df3 in gtk_main () at /usr/lib/libgtk-x11-2.0.so.0 #19 0x00007ffff4729777 in Gtkmm2ext::UI::run(Receiver&) () at /usr/lib/ardour6/libgtkmm2ext.so.0 #20 0x00005555560c5e69 in () #21 0x00007fffffffe6e8 in () #22 0x0000000156f11188 in () #23 0x00007fffffffe520 in () #24 0x0000555555afb006 in () #25 0x00007fffffffe540 in () #26 0x0000555556f11180 in () #27 0x00007fffffffe540 in () #28 0x0000555555afb03e in () #29 0x00000000000000fa in () #30 0x00007fffef812cc0 in std::basic_ios >::~basic_ios() (this=, __in_chrg=) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/basic_ios.h:282 #31 0x00007fffef812cc0 in std::basic_ostream >::basic_ostream(std::basic_streambuf >*) (__sb=, this=, __in_chrg=, __vtt_parm=) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/ostream:85 #32 0x00007fffef812cc0 in std::ios_base::Init::Init() (this=) at /build/gcc/src/gcc/libstdc++-v3/src/c++98/ios_init.cc:108 #33 0x000000010000ffff in () #34 0x0000000000000063 in () #35 0x8909f72af5bac700 in () #36 0x0000555556dbb9c8 in () #37 0x0000000000000101 in () #38 0x0000555556dbb9c8 in () #39 0x0000000000000001 in () #40 0x0000000000000000 in () (gdb)