Thread 1 "gui" received signal SIGINT, Interrupt.
[Switching to Thread 0x7fffe7c87e00 (LWP 14155)]
__libc_read (nbytes=4, buf=0x7fffffffa8c8, fd=14) at ../sysdeps/unix/sysv/linux/read.c:26
26	in ../sysdeps/unix/sysv/linux/read.c
(gdb) bt
#0  0x00007ffff3ead544 in __libc_read (nbytes=4, buf=0x7fffffffa8c8, fd=14) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007ffff3ead544 in __libc_read (fd=14, buf=0x7fffffffa8c8, nbytes=4) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fffd5dea9be in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffd5ddb8ce in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffd5dd9647 in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007fffd5dd9be4 in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#6  0x00007fffd5dcfc5b in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#7  0x00007fffd5dcc9aa in jack_port_register () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#8  0x00007fffd60e65dc in ARDOUR::JACKAudioBackend::register_port(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, ARDOUR::DataType, ARDOUR::PortFlags)
    (this=0x555558518730, shortname="Audio 1/audio_out 1", type=..., flags=ARDOUR::IsOutput) at ../libs/backends/jack/jack_portengine.cc:508
#9  0x00007ffff79f4e68 in ARDOUR::Port::Port(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, ARDOUR::DataType, ARDOUR::PortFlags)
    (this=0x5555587da2d0, n="Audio 1/audio_out 1", t=..., f=ARDOUR::IsOutput) at ../libs/ardour/port.cc:80
#10 0x00007ffff74a4651 in ARDOUR::AudioPort::AudioPort(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, ARDOUR::PortFlags)
    (this=0x5555587da2d0, name="Audio 1/audio_out 1", flags=ARDOUR::IsOutput) at ../libs/ardour/audio_port.cc:43
#11 0x00007ffff7a0cb43 in ARDOUR::PortManager::register_port(ARDOUR::DataType, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, bool, ARDOUR::PortFlags) (this=0x5555581f72e0, dtype=..., portname="Audio 1/audio_out 1", input=false, async=false, flags=(unknown: 0)) at ../libs/ardour/port_manager.cc:404
#12 0x00007ffff7a0d6fa in ARDOUR::PortManager::register_output_port(ARDOUR::DataType, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, ARDOUR::PortFlags) (this=0x5555581f72e0, type=..., portname="Audio 1/audio_out 1", async=false, extra_flags=(unknown: 0)) at ../libs/ardour/port_manager.cc:452
#13 0x00007ffff7665fd1 in ARDOUR::IO::ensure_ports_locked(ARDOUR::ChanCount, bool, bool&) (this=0x55555c4b9480, count=..., clear=false, changed=@0x7fffffffb5df: false)
    at ../libs/ardour/io.cc:433
#14 0x00007ffff7666509 in ARDOUR::IO::ensure_ports(ARDOUR::ChanCount, bool, void*) (this=0x55555c4b9480, count=..., clear=false, src=0x555559392400) at ../libs/ardour/io.cc:485
#15 0x00007ffff7666674 in ARDOUR::IO::ensure_io(ARDOUR::ChanCount, bool, void*) (this=0x55555c4b9480, count=..., clear=false, src=0x555559392400) at ../libs/ardour/io.cc:510
#16 0x00007ffff7ad5a4a in ARDOUR::Session::new_audio_track(int, int, ARDOUR::RouteGroup*, unsigned int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, unsigned int, ARDOUR::TrackMode, bool) (this=0x555559392400, input_channels=6, output_channels=2, route_group=
    0x0, how_many=6, name_template="Audio", order=4294967295, mode=ARDOUR::Normal, input_auto_connect=true) at ../libs/ardour/session.cc:2740
#17 0x0000555556ef49a7 in ARDOUR_UI::session_add_audio_route(bool, int, int, ARDOUR::TrackMode, ARDOUR::RouteGroup*, unsigned int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, unsigned int) (this=
    0x555558231490, track=true, input_channels=6, output_channels=2, mode=ARDOUR::Normal, route_group=0x0, how_many=6, name_template="Audio", strict_io=true, order=4294967295)
    at ../gtk2_ardour/ardour_ui.cc:1545
#18 0x0000555556efac40 in ARDOUR_UI::add_route_dialog_response(int) (this=0x555558231490, r=1) at ../gtk2_ardour/ardour_ui.cc:2777
#19 0x0000555556f2a14e in sigc::bound_mem_functor1<void, ARDOUR_UI, int>::operator()(int const&) const (this=0x55555926b838, _A_a1=@0x7fffffffbd6c: 1)
    at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:2066
#20 0x0000555556f2328f in sigc::adaptor_functor<sigc::bound_mem_functor1<void, ARDOUR_UI, int> >::operator()<int const&>(int const&) const (this=0x55555926b830, _A_arg1=@0x7fffffffbd6c: 1)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:89
#21 0x0000555556f1ae3a in sigc::internal::slot_call1<sigc::bound_mem_functor1<void, ARDOUR_UI, int>, void, int>::call_it(sigc::internal::slot_rep*, int const&)
    (rep=0x55555926b800, a_1=@0x7fffffffbd6c: 1) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:170
#22 0x00007ffff463bf27 in  () at /usr/lib/x86_64-linux-gnu/libgtkmm-2.4.so.1
#23 0x00007ffff5479c8d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#24 0x00007ffff548ce64 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#25 0x00007ffff54962be in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#26 0x00007ffff549697f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#27 0x00007ffff5479c8d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#28 0x00007ffff548d365 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#29 0x00007ffff54962be in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#30 0x00007ffff549697f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#31 0x00007ffff4f80e25 in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#32 0x00007ffff5479c8d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#33 0x00007ffff548d4b4 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#34 0x00007ffff54962be in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#35 0x00007ffff549697f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#36 0x00007ffff4f7fd69 in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
--Type <RET> for more, q to quit, c to continue without paging--
#37 0x00007ffff50261eb in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#38 0x00007ffff5479c8d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#39 0x00007ffff548cbbd in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#40 0x00007ffff54959ab in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#41 0x00007ffff549697f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#42 0x00007ffff513ccac in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#43 0x00007ffff502448c in gtk_propagate_event () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#44 0x00007ffff502487b in gtk_main_do_event () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#45 0x00007ffff4e97bac in  () at /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
#46 0x00007ffff5397f2e in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007ffff53981c8 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007ffff53984c2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#49 0x00007ffff50238e7 in gtk_main () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#50 0x00007ffff5bf8fc8 in Gtkmm2ext::UI::run(Receiver&) (this=0x555558231490, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:290
#51 0x000055555747bde4 in main(int, char**) (argc=1, argv=0x7fffffffd5d8) at ../gtk2_ardour/main.cc:435
(gdb) thread apply all bt

Thread 42 (Thread 0x7fff6bfff700 (LWP 14204)):
#0  0x00007ffff3eadbf0 in __GI___nanosleep (requested_time=0x7fff6bffe6c0, remaining=0x7fff6bffe6d0) at ../sysdeps/unix/sysv/linux/nanosleep.c:28
#1  0x00007ffff53c1abf in g_usleep () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff7513102 in ARDOUR::AutomationWatch::thread() (this=0x55555b85a000) at ../libs/ardour/automation_watch.cc:195
#3  0x00007ffff7518531 in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator()(ARDOUR::AutomationWatch*) const (this=0x55555ad417a0, p=0x55555b85a000)
    at /usr/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff7518115 in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>&, boost::_bi::list0&, int) (this=0x55555ad417b0, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#5  0x00007ffff75179d3 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator()()
    (this=0x55555ad417a0) at /usr/include/boost/bind/bind.hpp:1294
#6  0x00007ffff7517964 in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > > >::operator()() const (this=0x55555ad417a0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff75173b4 in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >, void>::call_it(sigc::internal::slot_rep*) (rep=0x55555ad41770) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#8  0x00007ffff550fd5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#9  0x00007ffff53c0415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 41 (Thread 0x7fffa0982700 (LWP 14203)):
#0  0x00007ffff3eaa00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555559394250) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ffff3eaa00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555559394200, cond=0x555559394228) at pthread_cond_wait.c:502
#2  0x00007ffff3eaa00c in __pthread_cond_wait (cond=0x555559394228, mutex=0x555559394200) at pthread_cond_wait.c:655
#3  0x00007ffff7aef5cc in ARDOUR::Session::auto_connect_thread_run() (this=0x555559392400) at ../libs/ardour/session.cc:7007
#4  0x00007ffff7aef304 in ARDOUR::Session::auto_connect_thread(void*) (arg=0x555559392400) at ../libs/ardour/session.cc:6954
#5  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 40 (Thread 0x7fffa1183700 (LWP 14202)):
#0  0x00007ffff3eaa00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x5555593941e0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ffff3eaa00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555559394190, cond=0x5555593941b8) at pthread_cond_wait.c:502
#2  0x00007ffff3eaa00c in __pthread_cond_wait (cond=0x5555593941b8, mutex=0x555559394190) at pthread_cond_wait.c:655
#3  0x00007ffff7b64be5 in ARDOUR::Session::emit_thread_run() (this=0x555559392400) at ../libs/ardour/session_process.cc:1111
#4  0x00007ffff7b64b82 in ARDOUR::Session::emit_thread(void*) (arg=0x555559392400) at ../libs/ardour/session_process.cc:1100
#5  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 39 (Thread 0x7fffa3187700 (LWP 14201)):
#0  0x00007ffff24ee819 in __GI___poll (fds=0x7fff6c192890, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff5398136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff53984c2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff5a1e6fc in BaseUI::main_thread() (this=0x55555b9c7a00) at ../libs/pbd/base_ui.cc:98
#4  0x00007ffff5a22760 in sigc::bound_mem_functor0<void, BaseUI>::operator()() const (this=0x55555935f4b8) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1991
#5  0x00007ffff5a223ec in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator()() const (this=0x55555935f4b0)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff5a21e4b in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it(sigc::internal::slot_rep*) (rep=0x55555935f480)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#7  0x00007ffff550fd5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#8  0x00007ffff53c0415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
--Type <RET> for more, q to quit, c to continue without paging--
#10 0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 38 (Thread 0x7fffc03af700 (LWP 14200)):
#0  0x00007ffff24ee819 in __GI___poll (fds=0x7fffc03ade38, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff5a33c38 in CrossThreadChannel::poll_for_request() (this=0x55555c89d798) at ../libs/pbd/crossthread.posix.cc:102
#2  0x00007ffff5a33ca1 in CrossThreadChannel::receive(char&, bool) (this=0x55555c89d798, msg=@0x7fffc03adeff: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:123
#3  0x00007ffff7528896 in ARDOUR::Butler::thread_work() (this=0x55555c89d700) at ../libs/ardour/butler.cc:172
#4  0x00007ffff7528619 in ARDOUR::Butler::_thread_work(void*) (arg=0x55555c89d700) at ../libs/ardour/butler.cc:153
#5  0x00007ffff5a56054 in fake_thread_start(void*) (arg=0x55555a6693b0) at ../libs/pbd/pthread_utils.cc:107
#6  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#7  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 37 (Thread 0x7fffc04db700 (LWP 14199)):
#0  0x00007ffff3eac896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55555800eb30) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  0x00007ffff3eac896 in do_futex_wait (sem=sem@entry=0x55555800eb30, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007ffff3eac988 in __new_sem_wait_slow (sem=0x55555800eb30, abstime=0x0) at sem_waitcommon.c:181
#3  0x00007ffff763f5f0 in PBD::Semaphore::wait() (this=0x55555800eb30) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff763cdb2 in ARDOUR::Graph::run_one() (this=0x55555800ea80) at ../libs/ardour/graph.cc:426
#5  0x00007ffff763d26a in ARDOUR::Graph::helper_thread() (this=0x55555800ea80) at ../libs/ardour/graph.cc:470
#6  0x00007ffff76436d3 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffc04da7f8, p=0x55555800ea80) at /usr/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff7642ead in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0x7fffc04da808, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#8  0x00007ffff7642317 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffc04da7f8)
    at /usr/include/boost/bind/bind.hpp:1294
#9  0x00007ffff7641bd2 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:159
#10 0x0000555556ee3ca0 in boost::function0<void>::operator()() const (this=0x7fffc04da7f0) at /usr/include/boost/function/function_template.hpp:768
#11 0x00007fffd60d1b89 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x555559739b70) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#13 0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 36 (Thread 0x7fffc055c700 (LWP 14198)):
#0  0x00007ffff3eac896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55555800eb30) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  0x00007ffff3eac896 in do_futex_wait (sem=sem@entry=0x55555800eb30, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007ffff3eac988 in __new_sem_wait_slow (sem=0x55555800eb30, abstime=0x0) at sem_waitcommon.c:181
#3  0x00007ffff763f5f0 in PBD::Semaphore::wait() (this=0x55555800eb30) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff763cdb2 in ARDOUR::Graph::run_one() (this=0x55555800ea80) at ../libs/ardour/graph.cc:426
#5  0x00007ffff763d26a in ARDOUR::Graph::helper_thread() (this=0x55555800ea80) at ../libs/ardour/graph.cc:470
#6  0x00007ffff76436d3 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffc055b7f8, p=0x55555800ea80) at /usr/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff7642ead in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0x7fffc055b808, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#8  0x00007ffff7642317 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffc055b7f8)
    at /usr/include/boost/bind/bind.hpp:1294
#9  0x00007ffff7641bd2 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:159
#10 0x0000555556ee3ca0 in boost::function0<void>::operator()() const (this=0x7fffc055b7f0) at /usr/include/boost/function/function_template.hpp:768
#11 0x00007fffd60d1b89 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x55555b226090) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#13 0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 35 (Thread 0x7fffc05dd700 (LWP 14197)):
--Type <RET> for more, q to quit, c to continue without paging--
#0  0x00007ffff3eac896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55555800eb30) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  0x00007ffff3eac896 in do_futex_wait (sem=sem@entry=0x55555800eb30, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007ffff3eac988 in __new_sem_wait_slow (sem=0x55555800eb30, abstime=0x0) at sem_waitcommon.c:181
#3  0x00007ffff763f5f0 in PBD::Semaphore::wait() (this=0x55555800eb30) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff763cdb2 in ARDOUR::Graph::run_one() (this=0x55555800ea80) at ../libs/ardour/graph.cc:426
#5  0x00007ffff763d26a in ARDOUR::Graph::helper_thread() (this=0x55555800ea80) at ../libs/ardour/graph.cc:470
#6  0x00007ffff76436d3 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffc05dc7f8, p=0x55555800ea80) at /usr/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff7642ead in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0x7fffc05dc808, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#8  0x00007ffff7642317 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffc05dc7f8)
    at /usr/include/boost/bind/bind.hpp:1294
#9  0x00007ffff7641bd2 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:159
#10 0x0000555556ee3ca0 in boost::function0<void>::operator()() const (this=0x7fffc05dc7f0) at /usr/include/boost/function/function_template.hpp:768
#11 0x00007fffd60d1b89 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x55555a24ee60) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#13 0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 34 (Thread 0x7fffc065e700 (LWP 14196)):
#0  0x00007ffff3eac896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55555800eb58) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  0x00007ffff3eac896 in do_futex_wait (sem=sem@entry=0x55555800eb58, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007ffff3eac988 in __new_sem_wait_slow (sem=0x55555800eb58, abstime=0x0) at sem_waitcommon.c:181
#3  0x00007ffff763f5f0 in PBD::Semaphore::wait() (this=0x55555800eb58) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff763c155 in ARDOUR::Graph::reached_terminal_node() (this=0x55555800ea80) at ../libs/ardour/graph.cc:301
#5  0x00007ffff7643d73 in ARDOUR::GraphNode::finish(int) (this=0x5555594c2708, chain=1) at ../libs/ardour/graphnode.cc:73
#6  0x00007ffff763f65a in ARDOUR::GraphNode::run(int) (this=0x5555594c2708, chain=1) at ../libs/ardour/ardour/graphnode.h:63
#7  0x00007ffff763cf20 in ARDOUR::Graph::run_one() (this=0x55555800ea80) at ../libs/ardour/graph.cc:442
#8  0x00007ffff763d64c in ARDOUR::Graph::main_thread() (this=0x55555800ea80) at ../libs/ardour/graph.cc:523
#9  0x00007ffff76436d3 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffc065d7f8, p=0x55555800ea80) at /usr/include/boost/bind/mem_fn_template.hpp:49
#10 0x00007ffff7642ead in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0x7fffc065d808, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#11 0x00007ffff7642317 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffc065d7f8)
    at /usr/include/boost/bind/bind.hpp:1294
#12 0x00007ffff7641bd2 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:159
#13 0x0000555556ee3ca0 in boost::function0<void>::operator()() const (this=0x7fffc065d7f0) at /usr/include/boost/function/function_template.hpp:768
#14 0x00007fffd60d1b89 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x55555ca584f0) at ../libs/backends/jack/jack_audiobackend.cc:953
#15 0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#16 0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 33 (Thread 0x7fffc0f35700 (LWP 14195)):
#0  0x00007ffff3eac896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55555b8757a0) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  0x00007ffff3eac896 in do_futex_wait (sem=sem@entry=0x55555b8757a0, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007ffff3eac988 in __new_sem_wait_slow (sem=0x55555b8757a0, abstime=0x0) at sem_waitcommon.c:181
#3  0x00007ffff763f5f0 in PBD::Semaphore::wait() (this=0x55555b8757a0) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff7ab274b in ARDOUR::RTTaskList::run() (this=0x55555b875770) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7ab2542 in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x55555b875770) at ../libs/ardour/rt_tasklist.cc:67
#6  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#7  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 32 (Thread 0x7fffc0f3e700 (LWP 14194)):
--Type <RET> for more, q to quit, c to continue without paging--
#0  0x00007ffff3eac896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55555b8757a0) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  0x00007ffff3eac896 in do_futex_wait (sem=sem@entry=0x55555b8757a0, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007ffff3eac988 in __new_sem_wait_slow (sem=0x55555b8757a0, abstime=0x0) at sem_waitcommon.c:181
#3  0x00007ffff763f5f0 in PBD::Semaphore::wait() (this=0x55555b8757a0) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff7ab274b in ARDOUR::RTTaskList::run() (this=0x55555b875770) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7ab2542 in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x55555b875770) at ../libs/ardour/rt_tasklist.cc:67
#6  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#7  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 31 (Thread 0x7fffc0f47700 (LWP 14193)):
#0  0x00007ffff3eac896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55555b8757a0) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  0x00007ffff3eac896 in do_futex_wait (sem=sem@entry=0x55555b8757a0, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007ffff3eac988 in __new_sem_wait_slow (sem=0x55555b8757a0, abstime=0x0) at sem_waitcommon.c:181
#3  0x00007ffff763f5f0 in PBD::Semaphore::wait() (this=0x55555b8757a0) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff7ab274b in ARDOUR::RTTaskList::run() (this=0x55555b875770) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7ab2542 in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x55555b875770) at ../libs/ardour/rt_tasklist.cc:67
#6  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#7  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7fffc0f50700 (LWP 14192)):
#0  0x00007ffff3eac896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55555b8757a0) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  0x00007ffff3eac896 in do_futex_wait (sem=sem@entry=0x55555b8757a0, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007ffff3eac988 in __new_sem_wait_slow (sem=0x55555b8757a0, abstime=0x0) at sem_waitcommon.c:181
#3  0x00007ffff763f5f0 in PBD::Semaphore::wait() (this=0x55555b8757a0) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff7ab274b in ARDOUR::RTTaskList::run() (this=0x55555b875770) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7ab2542 in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x55555b875770) at ../libs/ardour/rt_tasklist.cc:67
#6  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#7  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fffc27fc700 (LWP 14190)):
#0  0x00007ffff24f3f59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff53e20ba in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff536a091 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff536a651 in g_async_queue_timeout_pop () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffff53c0e51 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff53c0415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#7  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fffc1a37700 (LWP 14179)):
#0  0x00007ffff24f3f59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fffd5deb567 in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007fffd5dd2f55 in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffd5dd18c9 in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffd60d1c3b in ARDOUR::JACKAudioBackend::process_thread() (this=0x555558518730) at ../libs/backends/jack/jack_audiobackend.cc:982
#5  0x00007fffd60d1bd8 in ARDOUR::JACKAudioBackend::_process_thread(void*) (arg=0x555558518730) at ../libs/backends/jack/jack_audiobackend.cc:961
#6  0x00007fffd5dd182a in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#7  0x00007fffd5de9756 in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#8  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

--Type <RET> for more, q to quit, c to continue without paging--
Thread 20 (Thread 0x7fffc1e0d700 (LWP 14178)):
#0  0x00007ffff24f3f59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff53e161c in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x0000555556ecb170 in Glib::Threads::Mutex::Lock::Lock(Glib::Threads::Mutex&) (this=0x7fffc1e0c390, mutex=...) at /usr/include/glibmm-2.4/glibmm/threads.h:687
#3  0x00007ffff7aed0a7 in ARDOUR::Session::update_latency(bool) (this=0x555559392400, playback=false) at ../libs/ardour/session.cc:6563
#4  0x00007ffff74be3de in ARDOUR::AudioEngine::latency_callback(bool) (this=0x5555581f72e0, for_playback=false) at ../libs/ardour/audioengine.cc:1393
#5  0x00007fffd60d1cf9 in ARDOUR::JACKAudioBackend::jack_latency_callback(JackLatencyCallbackMode) (this=0x555558518730, mode=JackCaptureLatency)
    at ../libs/backends/jack/jack_audiobackend.cc:1010
#6  0x00007fffd60d17d6 in ARDOUR::JACKAudioBackend::_latency_callback(JackLatencyCallbackMode, void*) (mode=JackCaptureLatency, arg=0x555558518730)
    at ../libs/backends/jack/jack_audiobackend.cc:856
#7  0x00007fffd5dd0ec2 in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#8  0x00007fffd5dd133c in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#9  0x00007fffd5dee0b7 in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#10 0x00007fffd5de9756 in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#11 0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#12 0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fffc1e8e700 (LWP 14177)):
#0  0x00007ffff3eaa00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555558654248) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ffff3eaa00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x5555586541f0, cond=0x555558654220) at pthread_cond_wait.c:502
#2  0x00007ffff3eaa00c in __pthread_cond_wait (cond=0x555558654220, mutex=0x5555586541f0) at pthread_cond_wait.c:655
#3  0x00007fffd5dea11c in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffd5de1d95 in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007fffd5de9756 in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#6  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#7  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fffc3fff700 (LWP 14168)):
#0  0x00007ffff24ee819 in __GI___poll (fds=0x5555580e8d10, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff5398136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff53984c2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff4c03266 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007ffff53c0415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fffd4844700 (LWP 14167)):
#0  0x00007ffff24ee819 in __GI___poll (fds=0x5555580e0330, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff5398136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff539825c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff53982a1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffff53c0415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fffd6965700 (LWP 14165)):
#0  0x00007ffff24f3f59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff53e1f9f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff74bb9ad in ARDOUR::AudioEngine::do_devicelist_update() (this=0x5555581f72e0) at ../libs/ardour/audioengine.cc:678
#3  0x00007ffff74c85f1 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator()(ARDOUR::AudioEngine*) const (this=0x555557c99900, p=0x5555581f72e0)
    at /usr/include/boost/bind/mem_fn_template.hpp:49
--Type <RET> for more, q to quit, c to continue without paging--
#4  0x00007ffff74c8025 in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::AudioEngine>&, boost::_bi::list0&, int) (this=0x555557c99910, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#5  0x00007ffff74c7841 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator()()
    (this=0x555557c99900) at /usr/include/boost/bind/bind.hpp:1294
#6  0x00007ffff74c707a in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator()() const (this=0x555557c99900) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff74c63ea in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::call_it(sigc::internal::slot_rep*) (rep=0x555557c998d0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#8  0x00007ffff550fd5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#9  0x00007ffff53c0415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fffd799c700 (LWP 14164)):
#0  0x00007ffff24f3f59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff53e1f9f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff74bb774 in ARDOUR::AudioEngine::do_reset_backend() (this=0x5555581f72e0) at ../libs/ardour/audioengine.cc:642
#3  0x00007ffff74c85f1 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator()(ARDOUR::AudioEngine*) const (this=0x555557c999f0, p=0x5555581f72e0)
    at /usr/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff74c8025 in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::AudioEngine>&, boost::_bi::list0&, int) (this=0x555557c99a00, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#5  0x00007ffff74c7841 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator()()
    (this=0x555557c999f0) at /usr/include/boost/bind/bind.hpp:1294
#6  0x00007ffff74c707a in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator()() const (this=0x555557c999f0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff74c63ea in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::call_it(sigc::internal::slot_rep*) (rep=0x555557c999c0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#8  0x00007ffff550fd5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#9  0x00007ffff53c0415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fffe6019700 (LWP 14162)):
#0  0x00007ffff24f3f59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff53e1f9f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff7470dc8 in ARDOUR::Analyser::work() () at ../libs/ardour/analyser.cc:93
#3  0x00007ffff7470bbc in analyser_work() () at ../libs/ardour/analyser.cc:58
#4  0x000055555773f667 in sigc::pointer_functor0<void>::operator()() const (this=0x555557d5cf78) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#5  0x000055555773ca1a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x555557d5cf70) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x0000555557738e93 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x555557d5cf40)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#7  0x00007ffff550fd5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#8  0x00007ffff53c0415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fffe681a700 (LWP 14161)):
#0  0x00007ffff24f3f59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff53e1f9f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff7bf2ff2 in peak_thread_work() () at ../libs/ardour/source_factory.cc:74
#3  0x000055555773f667 in sigc::pointer_functor0<void>::operator()() const (this=0x555557d5d008) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
--Type <RET> for more, q to quit, c to continue without paging--
#4  0x000055555773ca1a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x555557d5d000) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x0000555557738e93 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x555557d5cfd0)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#6  0x00007ffff550fd5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#7  0x00007ffff53c0415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fffe701b700 (LWP 14160)):
#0  0x00007ffff24f3f59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff53e1f9f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff7bf2ff2 in peak_thread_work() () at ../libs/ardour/source_factory.cc:74
#3  0x000055555773f667 in sigc::pointer_functor0<void>::operator()() const (this=0x555557cfc338) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x000055555773ca1a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x555557cfc330) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x0000555557738e93 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x555557cfc300)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#6  0x00007ffff550fd5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#7  0x00007ffff53c0415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fffe781c700 (LWP 14159)):
#0  0x00007ffff3eadbf0 in __GI___nanosleep (requested_time=0x7fffe781b6e0, remaining=0x7fffe781b6f0) at ../sysdeps/unix/sysv/linux/nanosleep.c:28
#1  0x00007ffff53c1abf in g_usleep () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x0000555557ab1394 in gui_event_loop(void*) (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:463
#3  0x00007ffff3ea3fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#4  0x00007ffff24f94cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fffe7c87e00 (LWP 14155)):
#0  0x00007ffff3ead544 in __libc_read (nbytes=4, buf=0x7fffffffa8c8, fd=14) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007ffff3ead544 in __libc_read (fd=14, buf=0x7fffffffa8c8, nbytes=4) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fffd5dea9be in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffd5ddb8ce in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffd5dd9647 in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007fffd5dd9be4 in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#6  0x00007fffd5dcfc5b in  () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#7  0x00007fffd5dcc9aa in jack_port_register () at /usr/lib/x86_64-linux-gnu/libjack.so.0
#8  0x00007fffd60e65dc in ARDOUR::JACKAudioBackend::register_port(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, ARDOUR::DataType, ARDOUR::PortFlags)
    (this=0x555558518730, shortname="Audio 1/audio_out 1", type=..., flags=ARDOUR::IsOutput) at ../libs/backends/jack/jack_portengine.cc:508
#9  0x00007ffff79f4e68 in ARDOUR::Port::Port(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, ARDOUR::DataType, ARDOUR::PortFlags)
    (this=0x5555587da2d0, n="Audio 1/audio_out 1", t=..., f=ARDOUR::IsOutput) at ../libs/ardour/port.cc:80
#10 0x00007ffff74a4651 in ARDOUR::AudioPort::AudioPort(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, ARDOUR::PortFlags)
    (this=0x5555587da2d0, name="Audio 1/audio_out 1", flags=ARDOUR::IsOutput) at ../libs/ardour/audio_port.cc:43
#11 0x00007ffff7a0cb43 in ARDOUR::PortManager::register_port(ARDOUR::DataType, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, bool, ARDOUR::PortFlags) (this=0x5555581f72e0, dtype=..., portname="Audio 1/audio_out 1", input=false, async=false, flags=(unknown: 0)) at ../libs/ardour/port_manager.cc:404
#12 0x00007ffff7a0d6fa in ARDOUR::PortManager::register_output_port(ARDOUR::DataType, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, ARDOUR::PortFlags) (this=0x5555581f72e0, type=..., portname="Audio 1/audio_out 1", async=false, extra_flags=(unknown: 0)) at ../libs/ardour/port_manager.cc:452
#13 0x00007ffff7665fd1 in ARDOUR::IO::ensure_ports_locked(ARDOUR::ChanCount, bool, bool&) (this=0x55555c4b9480, count=..., clear=false, changed=@0x7fffffffb5df: false)
    at ../libs/ardour/io.cc:433
#14 0x00007ffff7666509 in ARDOUR::IO::ensure_ports(ARDOUR::ChanCount, bool, void*) (this=0x55555c4b9480, count=..., clear=false, src=0x555559392400) at ../libs/ardour/io.cc:485
#15 0x00007ffff7666674 in ARDOUR::IO::ensure_io(ARDOUR::ChanCount, bool, void*) (this=0x55555c4b9480, count=..., clear=false, src=0x555559392400) at ../libs/ardour/io.cc:510
--Type <RET> for more, q to quit, c to continue without paging--
#16 0x00007ffff7ad5a4a in ARDOUR::Session::new_audio_track(int, int, ARDOUR::RouteGroup*, unsigned int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, unsigned int, ARDOUR::TrackMode, bool)
    (this=0x555559392400, input_channels=6, output_channels=2, route_group=0x0, how_many=6, name_template="Audio", order=4294967295, mode=ARDOUR::Normal, input_auto_connect=true)
    at ../libs/ardour/session.cc:2740
#17 0x0000555556ef49a7 in ARDOUR_UI::session_add_audio_route(bool, int, int, ARDOUR::TrackMode, ARDOUR::RouteGroup*, unsigned int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, unsigned int)
    (this=0x555558231490, track=true, input_channels=6, output_channels=2, mode=ARDOUR::Normal, route_group=0x0, how_many=6, name_template="Audio", strict_io=true, order=4294967295)
    at ../gtk2_ardour/ardour_ui.cc:1545
#18 0x0000555556efac40 in ARDOUR_UI::add_route_dialog_response(int) (this=0x555558231490, r=1) at ../gtk2_ardour/ardour_ui.cc:2777
#19 0x0000555556f2a14e in sigc::bound_mem_functor1<void, ARDOUR_UI, int>::operator()(int const&) const (this=0x55555926b838, _A_a1=@0x7fffffffbd6c: 1)
    at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:2066
#20 0x0000555556f2328f in sigc::adaptor_functor<sigc::bound_mem_functor1<void, ARDOUR_UI, int> >::operator()<int const&>(int const&) const (this=0x55555926b830, _A_arg1=@0x7fffffffbd6c: 1)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:89
#21 0x0000555556f1ae3a in sigc::internal::slot_call1<sigc::bound_mem_functor1<void, ARDOUR_UI, int>, void, int>::call_it(sigc::internal::slot_rep*, int const&)
    (rep=0x55555926b800, a_1=@0x7fffffffbd6c: 1) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:170
#22 0x00007ffff463bf27 in  () at /usr/lib/x86_64-linux-gnu/libgtkmm-2.4.so.1
#23 0x00007ffff5479c8d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#24 0x00007ffff548ce64 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#25 0x00007ffff54962be in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#26 0x00007ffff549697f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#27 0x00007ffff5479c8d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#28 0x00007ffff548d365 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#29 0x00007ffff54962be in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#30 0x00007ffff549697f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#31 0x00007ffff4f80e25 in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#32 0x00007ffff5479c8d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#33 0x00007ffff548d4b4 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#34 0x00007ffff54962be in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#35 0x00007ffff549697f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#36 0x00007ffff4f7fd69 in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#37 0x00007ffff50261eb in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#38 0x00007ffff5479c8d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#39 0x00007ffff548cbbd in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#40 0x00007ffff54959ab in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#41 0x00007ffff549697f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#42 0x00007ffff513ccac in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#43 0x00007ffff502448c in gtk_propagate_event () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#44 0x00007ffff502487b in gtk_main_do_event () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#45 0x00007ffff4e97bac in  () at /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
#46 0x00007ffff5397f2e in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007ffff53981c8 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007ffff53984c2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#49 0x00007ffff50238e7 in gtk_main () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#50 0x00007ffff5bf8fc8 in Gtkmm2ext::UI::run(Receiver&) (this=0x555558231490, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:290
#51 0x000055555747bde4 in main(int, char**) (argc=1, argv=0x7fffffffd5d8) at ../gtk2_ardour/main.cc:435