Thread 16 (Thread 0x7f39b45ff700 (LWP 20564)):
#0  0x00007f39c6ac20dd in read () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f39c7a1d19a in ?? () from /usr/lib/libjack.so.0
#2  0x00007f39c7a1fac6 in ?? () from /usr/lib/libjack.so.0
#3  0x00007f39c7a1b4d0 in ?? () from /usr/lib/libjack.so.0
#4  0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7f398a5a7820 (LWP 20574)):
#0  0x00007f39c67e9473 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f39cdc11671 in ARDOUR::Butler::thread_work (this=0x4187510)
    at ../libs/ardour/butler.cc:150
#2  0x00007f39cdc115cb in ARDOUR::Butler::_thread_work (arg=0x4187510)
    at ../libs/ardour/butler.cc:134
#3  0x00007f39cbdd3f24 in fake_thread_start (arg=0x6aea220)
    at ../libs/pbd/pthread_utils.cc:81
#4  0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000000000 in ?? ()
---Type <return> to continue, or q <return> to quit---

Thread 14 (Thread 0x7f39b7eb7700 (LWP 20525)):
#0  0x00007f39c6abf04c in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f39cdb4139d in ARDOUR::Analyser::work ()
    at ../libs/ardour/analyser.cc:85
#2  0x00007f39cdb41135 in analyser_work () at ../libs/ardour/analyser.cc:49
#3  0x00000000018b4831 in sigc::pointer_functor0<void>::operator() (
    this=0x2a1d128) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x00000000018b1fa6 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x2a1d120)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#5  0x00000000018aef4d in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x2a1d0f0)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007f39cb84ab3d in ?? () from /usr/lib/libglibmm-2.4.so.1
#7  0x00007f39caf262b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7f39b5a36700 (LWP 20527)):
---Type <return> to continue, or q <return> to quit---
#0  0x00007f39c67e9473 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f39caf00f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f39caf01792 in g_main_loop_run ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f39c3564516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f39caf262b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7f39b4680700 (LWP 20563)):
#0  0x00007f39c6abf04c in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f39c7a1cab1 in ?? () from /usr/lib/libjack.so.0
#2  0x00007f39c7a18275 in ?? () from /usr/lib/libjack.so.0
#3  0x00007f39c7a1b4d0 in ?? () from /usr/lib/libjack.so.0
#4  0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f39addbe700 (LWP 20544)):
---Type <return> to continue, or q <return> to quit---
#0  0x00007f39c6abf3cb in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f39cb1b4465 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0
#2  0x00007f39caed543f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f39caed5c91 in g_async_queue_timed_pop ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f39caf286f7 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f39caf262b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#8  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f39b8eb9700 (LWP 20523)):
#0  0x00007f39c6abf04c in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f39cdfd3ce9 in peak_thread_work ()
    at ../libs/ardour/source_factory.cc:68
#2  0x00000000018b4831 in sigc::pointer_functor0<void>::operator() (
    this=0x2a1cf98) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#3  0x00000000018b1fa6 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x2a1cf90)
---Type <return> to continue, or q <return> to quit---
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#4  0x00000000018aef4d in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x2a1cf60)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#5  0x00007f39cb84ab3d in ?? () from /usr/lib/libglibmm-2.4.so.1
#6  0x00007f39caf262b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#9  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f39b86b8700 (LWP 20524)):
#0  0x00007f39c6abf04c in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f39cdfd3ce9 in peak_thread_work ()
    at ../libs/ardour/source_factory.cc:68
#2  0x00000000018b4831 in sigc::pointer_functor0<void>::operator() (
    this=0x2a1d238) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#3  0x00000000018b1fa6 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x2a1d230)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#4  0x00000000018aef4d in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x2a1d200)
---Type <return> to continue, or q <return> to quit---
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#5  0x00007f39cb84ab3d in ?? () from /usr/lib/libglibmm-2.4.so.1
#6  0x00007f39caf262b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#9  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f39ac087700 (LWP 20570)):
#0  0x00007f39c6ac1300 in sem_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f39cdce83f6 in PBD::ProcessSemaphore::wait (this=0x418a2a8)
    at /home/mats/apps/ardour/3.0/libs/pbd/pbd/semutils.h:41
#2  0x00007f39cdce6d6b in ARDOUR::Graph::main_thread (this=0x418a1d0)
    at ../libs/ardour/graph.cc:426
#3  0x00007f39cdcebdd8 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7f39ac086bc8, p=0x418a1d0)
    at /usr/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007f39cdceba2e in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7f39ac086bd8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#5  0x00007f39cdceb721 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
---Type <return> to continue, or q <return> to quit---
    this=0x7f39ac086bc8) at /usr/include/boost/bind/bind_template.hpp:20
#6  0x00007f39cdceb2e3 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 (function_obj_ptr=...)
    at /usr/include/boost/function/function_template.hpp:153
#7  0x000000000132109e in boost::function0<void>::operator() (
    this=0x7f39ac086bc0)
    at /usr/include/boost/function/function_template.hpp:1013
#8  0x00007f39cdb97e19 in ARDOUR::AudioEngine::_start_process_thread (
    arg=0x419a650) at ../libs/ardour/audioengine.cc:1519
#9  0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f398a6aa700 (LWP 20571)):
#0  0x00007f39c6ac1300 in sem_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f39cdce83f6 in PBD::ProcessSemaphore::wait (this=0x418a288)
    at /home/mats/apps/ardour/3.0/libs/pbd/pbd/semutils.h:41
#2  0x00007f39cdce6997 in ARDOUR::Graph::run_one (this=0x418a1d0)
    at ../libs/ardour/graph.cc:376
#3  0x00007f39cdce6cf1 in ARDOUR::Graph::helper_thread (this=0x418a1d0)
---Type <return> to continue, or q <return> to quit---
    at ../libs/ardour/graph.cc:407
#4  0x00007f39cdcebdd8 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7f398a6a9bc8, p=0x418a1d0)
    at /usr/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007f39cdceba2e in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7f398a6a9bd8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#6  0x00007f39cdceb721 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7f398a6a9bc8) at /usr/include/boost/bind/bind_template.hpp:20
#7  0x00007f39cdceb2e3 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 (function_obj_ptr=...)
    at /usr/include/boost/function/function_template.hpp:153
#8  0x000000000132109e in boost::function0<void>::operator() (
    this=0x7f398a6a9bc0)
    at /usr/include/boost/function/function_template.hpp:1013
#9  0x00007f39cdb97e19 in ARDOUR::AudioEngine::_start_process_thread (
    arg=0x419a650) at ../libs/ardour/audioengine.cc:1519
#10 0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()
---Type <return> to continue, or q <return> to quit---

Thread 6 (Thread 0x7f398a629700 (LWP 20572)):
#0  0x00007f39c6ac1300 in sem_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f39cdce83f6 in PBD::ProcessSemaphore::wait (this=0x418a288)
    at /home/mats/apps/ardour/3.0/libs/pbd/pbd/semutils.h:41
#2  0x00007f39cdce6997 in ARDOUR::Graph::run_one (this=0x418a1d0)
    at ../libs/ardour/graph.cc:376
#3  0x00007f39cdce6cf1 in ARDOUR::Graph::helper_thread (this=0x418a1d0)
    at ../libs/ardour/graph.cc:407
#4  0x00007f39cdcebdd8 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7f398a628bc8, p=0x418a1d0)
    at /usr/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007f39cdceba2e in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7f398a628bd8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#6  0x00007f39cdceb721 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7f398a628bc8) at /usr/include/boost/bind/bind_template.hpp:20
#7  0x00007f39cdceb2e3 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 (function_obj_ptr=...)
    at /usr/include/boost/function/function_template.hpp:153
---Type <return> to continue, or q <return> to quit---
#8  0x000000000132109e in boost::function0<void>::operator() (
    this=0x7f398a628bc0)
    at /usr/include/boost/function/function_template.hpp:1013
#9  0x00007f39cdb97e19 in ARDOUR::AudioEngine::_start_process_thread (
    arg=0x419a650) at ../libs/ardour/audioengine.cc:1519
#10 0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f398a52c820 (LWP 20576)):
#0  0x00007f39c6ac28dd in nanosleep ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f39caf296d2 in g_usleep ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f39cdb94b04 in ARDOUR::AudioEngine::meter_thread (this=0x2d92000)
    at ../libs/ardour/audioengine.cc:710
#3  0x00007f39cdbb45a2 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x7f39a809dda0, p=0x2d92000)
    at /usr/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007f39cdbafb78 in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x7f39a809ddb0, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
---Type <return> to continue, or q <return> to quit---
#5  0x00007f39cdbab589 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x7f39a809dda0) at /usr/include/boost/bind/bind_template.hpp:20
#6  0x00007f39cdba685a in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator() (this=0x7f39a809dda0)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#7  0x00007f39cdba24e4 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 (rep=0x7f39a809dd70)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007f39cb84ab3d in ?? () from /usr/lib/libglibmm-2.4.so.1
#9  0x00007f39caf262b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f39ced389e0 (LWP 20518)):
#0  0x00007f39c6ac207d in write () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f39cbdbf6da in CrossThreadChannel::wakeup (this=0x7f39a8037e48)
    at ../libs/pbd/crossthread.cc:77
#2  0x00007f39cddacd38 in AbstractUI<ARDOUR::MidiUIRequest>::send_request (
---Type <return> to continue, or q <return> to quit---
    this=0x7f39a8037e40, req=0x7f39a809da80)
    at /home/mats/apps/ardour/3.0/libs/pbd/pbd/abstract_ui.cc:212
#3  0x00007f39cddb5571 in AbstractUI<ARDOUR::MidiUIRequest>::call_slot(PBD::EventLoop::InvalidationRecord*, boost::function<void ()> const&) (
    this=0x7f39a8037e40, invalidation=0x0, f=...)
    at /home/mats/apps/ardour/3.0/libs/pbd/pbd/abstract_ui.cc:238
#4  0x00000000012cd7e1 in boost::_mfi::mf2<void, PBD::EventLoop, PBD::EventLoop::InvalidationRecord*, boost::function<void ()> const&>::operator()(PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, boost::function<void ()> const&) const
    (this=0x7f39a8035c00, p=0x7f39a8037e40, a1=0x0, a2=...)
    at /usr/include/boost/bind/mem_fn_template.hpp:280
#5  0x00000000012cd2aa in boost::_bi::list3<boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::_bi::value<boost::function<void ()> > >::operator()<boost::_mfi::mf2<void, PBD::EventLoop, PBD::EventLoop::InvalidationRecord*, boost::function<void ()> const&>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf2<void, PBD::EventLoop, PBD::EventLoop::InvalidationRecord*, boost::function<void ()> const&>&, boost::_bi::list0&, int) (this=0x7f39a8035c10, f=..., a=...) at /usr/include/boost/bind/bind.hpp:392
#6  0x00000000012cc8eb in boost::_bi::bind_t<void, boost::_mfi::mf2<void, PBD::EventLoop, PBD::EventLoop::InvalidationRecord*, boost::function<void ()> const&>, boost::_bi::list3<boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::_bi::value<boost::function<void ()> > > >::operator()() (this=0x7f39a8035c00)
---Type <return> to continue, or q <return> to quit---
    at /usr/include/boost/bind/bind_template.hpp:20
#7  0x00000000012cb578 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf2<void, PBD::EventLoop, PBD::EventLoop::InvalidationRecord*, boost::function<void ()> const&>, boost::_bi::list3<boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::_bi::value<boost::function<void ()> > > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...)
    at /usr/include/boost/function/function_template.hpp:153
#8  0x000000000132109e in boost::function0<void>::operator() (
    this=0x7f39a8035b98)
    at /usr/include/boost/function/function_template.hpp:1013
#9  0x000000000131c419 in boost::signals2::detail::signal0_impl<void, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::slot_invoker::m_invoke(boost::shared_ptr<boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > const&, boost::signals2::detail::void_type const*) const (
    this=0x7fff46756c50, connectionBody=...)
    at /usr/include/boost/signals2/detail/signal_template.hpp:360
#10 0x00000000013163d6 in boost::signals2::detail::signal0_impl<void, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mu---Type <return> to continue, or q <return> to quit---
tex>::slot_invoker::operator()(boost::shared_ptr<boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > const&) const (this=0x7fff46756c50, connectionBody=...)
    at /usr/include/boost/signals2/detail/signal_template.hpp:345
#11 0x000000000130facf in boost::signals2::detail::slot_call_iterator_t<boost::signals2::detail::signal0_impl<void, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::slot_invoker, std::_List_iterator<boost::shared_ptr<boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > >, boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> >::dereference() const (this=0x7fff46756a00)
    at /usr/include/boost/signals2/detail/slot_call_iterator.hpp:82
#12 0x00000000013091e8 in boost::iterator_core_access::dereference<boost::signals2::detail::slot_call_iterator_t<boost::signals2::detail::signal0_impl<void, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::slot_invoker, std::_List_iterator<boost::shared_ptr<boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, b---Type <return> to continue, or q <return> to quit---
oost::signals2::mutex> > >, boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > >(boost::signals2::detail::slot_call_iterator_t<boost::signals2::detail::signal0_impl<void, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::slot_invoker, std::_List_iterator<boost::shared_ptr<boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > >, boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > const&)
    (f=...) at /usr/include/boost/iterator/iterator_facade.hpp:517
#13 0x0000000001303262 in boost::iterator_facade<boost::signals2::detail::slot_call_iterator_t<boost::signals2::detail::signal0_impl<void, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::slot_invoker, std::_List_iterator<boost::shared_ptr<boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > >, boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> >, boost::signals2::detail::void---Type <return> to continue, or q <return> to quit---
_type, boost::single_pass_traversal_tag, boost::signals2::detail::void_type const&, long>::operator*() const (this=0x7fff46756a00)
    at /usr/include/boost/iterator/iterator_facade.hpp:643
#14 0x00000000012feab9 in boost::signals2::optional_last_value<void>::operator()<boost::signals2::detail::slot_call_iterator_t<boost::signals2::detail::signal0_impl<void, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::slot_invoker, std::_List_iterator<boost::shared_ptr<boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > >, boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > >(boost::signals2::detail::slot_call_iterator_t<boost::signals2::detail::signal0_impl<void, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::slot_invoker, std::_List_iterator<boost::shared_ptr<boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > >, boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> >, boost::signals2::detail::slot_call_iterator_t<boost::signals2::detail::sig---Type <return> to continue, or q <return> to quit---
nal0_impl<void, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::slot_invoker, std::_List_iterator<boost::shared_ptr<boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > >, boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> >) const (this=0x2593a80, first=..., last=...)
    at /usr/include/boost/signals2/optional_last_value.hpp:55
#15 0x00000000012f936d in boost::signals2::detail::combiner_invoker<void>::operator()<boost::signals2::optional_last_value<void>, boost::signals2::detail::slot_call_iterator_t<boost::signals2::detail::signal0_impl<void, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::slot_invoker, std::_List_iterator<boost::shared_ptr<boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > >, boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > >(boost::signals2::optional_last_value<void>&, boost::signals2::detail::slot_call_iterator_t<boost::signals2::detail::signal0_impl<void, boost::signals2::optional_last_value<void>, int, std---Type <return> to continue, or q <return> to quit---
::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::slot_invoker, std::_List_iterator<boost::shared_ptr<boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > >, boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> >, boost::signals2::detail::slot_call_iterator_t<boost::signals2::detail::signal0_impl<void, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::slot_invoker, std::_List_iterator<boost::shared_ptr<boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> > >, boost::signals2::detail::connection_body<std::pair<boost::signals2::detail::slot_meta_group, boost::optional<int> >, boost::signals2::slot0<void, boost::function<void ()> >, boost::signals2::mutex> >) const (this=0x7fff46756b3f, combiner=..., first=..., 
    last=...) at /usr/include/boost/signals2/detail/result_type_wrapper.hpp:64
#16 0x00000000012f4843 in boost::signals2::detail::signal0_impl<void, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::operator()() (this=0x2593990)
    at /usr/include/boost/signals2/detail/signal_template.hpp:246
---Type <return> to continue, or q <return> to quit---
#17 0x00000000012ef2ae in boost::signals2::signal0<void, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::operator()() (this=0x7f39ce8699b0)
    at /usr/include/boost/signals2/detail/signal_template.hpp:692
#18 0x00000000012eb42e in PBD::Signal0<void>::operator() (this=0x7f39ce8699b0)
    at /home/mats/apps/ardour/3.0/libs/pbd/pbd/signals.h:110
#19 0x00007f39cdf58aec in ARDOUR::Session::process (this=0x417e9b0, 
    nframes=256) at ../libs/ardour/session_process.cc:98
#20 0x00007f39cdb94c4f in ARDOUR::AudioEngine::set_session (this=0x2d92000, 
    s=0x417e9b0) at ../libs/ardour/audioengine.cc:741
#21 0x00007f39cdecfa61 in ARDOUR::Session::when_engine_running (this=0x417e9b0)
    at ../libs/ardour/session.cc:579
#22 0x00007f39cdf632da in ARDOUR::Session::second_stage_init (this=0x417e9b0)
    at ../libs/ardour/session_state.cc:354
#23 0x00007f39cdecb635 in ARDOUR::Session::Session (this=0x417e9b0, eng=..., 
    fullpath=..., snapshot_name=..., bus_profile=0x7fff46757970, 
    mix_template=...) at ../libs/ardour/session.cc:200
#24 0x00000000012e43c9 in ARDOUR_UI::build_session (this=0x27a39d0, path=..., 
    snap_name=..., bus_profile=...) at ../gtk2_ardour/ardour_ui.cc:2747
#25 0x00000000012e2494 in ARDOUR_UI::build_session_from_nsd (this=0x27a39d0, 
    session_path=..., session_name=...) at ../gtk2_ardour/ardour_ui.cc:2375
#26 0x00000000012e3205 in ARDOUR_UI::get_session_parameters (this=0x27a39d0, 
---Type <return> to continue, or q <return> to quit---
    quit_on_cancel=true, should_be_new=false, load_template=...)
    at ../gtk2_ardour/ardour_ui.cc:2560
#27 0x00000000012d9dff in ARDOUR_UI::startup (this=0x27a39d0)
    at ../gtk2_ardour/ardour_ui.cc:653
#28 0x0000000001306c9d in sigc::bound_mem_functor0<void, ARDOUR_UI>::operator()
    (this=0x2be6a18) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#29 0x0000000001301186 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR_UI> >::operator() (this=0x2be6a10)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#30 0x00000000012fb52f in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR_UI>, void>::call_it (rep=0x2be69e0)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#31 0x00000000012c289b in sigc::internal::signal_emit0<void, sigc::nil>::emit (
    impl=0x2be6990) at /usr/include/sigc++-2.0/sigc++/signal.h:776
#32 0x00000000012c46e0 in sigc::signal0<void, sigc::nil>::emit (this=0x27a3a90)
    at /usr/include/sigc++-2.0/sigc++/signal.h:2673
#33 0x00000000012c3a98 in sigc::signal0<void, sigc::nil>::operator() (
    this=0x27a3a90) at /usr/include/sigc++-2.0/sigc++/signal.h:2681
#34 0x00007f39cc233a44 in Gtkmm2ext::UI::run (this=0x27a39d0, old_receiver=...)
    at ../libs/gtkmm2ext/gtk_ui.cc:264
#35 0x0000000001702de1 in main (argc=1, argv=0x7fff46758068)
    at ../gtk2_ardour/main.cc:555

---Type <return> to continue, or q <return> to quit---
Thread 3 (Thread 0x7f39ac108700 (LWP 20569)):
#0  0x00007f39c6ac13f1 in sem_timedwait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f39c7a1beb2 in ?? () from /usr/lib/libjack.so.0
#2  0x00007f39c7a0aee9 in ?? () from /usr/lib/libjack.so.0
#3  0x00007f39c7a099d7 in ?? () from /usr/lib/libjack.so.0
#4  0x00007f39cdb93ca4 in ARDOUR::AudioEngine::process_thread (this=0x2d92000)
    at ../libs/ardour/audioengine.cc:444
#5  0x00007f39cdb9363c in ARDOUR::AudioEngine::_process_thread (arg=0x2d92000)
    at ../libs/ardour/audioengine.cc:342
#6  0x00007f39c7a08477 in ?? () from /usr/lib/libjack.so.0
#7  0x00007f39c7a1b4d0 in ?? () from /usr/lib/libjack.so.0
#8  0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f39b96ba700 (LWP 20522)):
#0  0x00007f39c67c121d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f39c67eee54 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x0000000001b0548b in gui_event_loop (ptr=0x0)
    at ../gtk2_ardour/linux_vst_gui_support.cc:363
#3  0x00007f39c6abaefc in start_thread ()
---Type <return> to continue, or q <return> to quit---
   from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f39b6237700 (LWP 20575)):
#0  0x0000000000000000 in ?? ()
#1  0x000000000132109e in boost::function0<void>::operator() (
    this=0x7f39a809da90)
    at /usr/include/boost/function/function_template.hpp:1013
#2  0x00007f39cddab7de in ARDOUR::MidiControlUI::do_request (
    this=0x7f39a8037e40, req=0x7f39a809da80) at ../libs/ardour/midi_ui.cc:78
#3  0x00007f39cddb58e7 in AbstractUI<ARDOUR::MidiUIRequest>::handle_ui_requests
    (this=0x7f39a8037e40)
    at /home/mats/apps/ardour/3.0/libs/pbd/pbd/abstract_ui.cc:182
#4  0x00007f39cbd9d565 in BaseUI::request_handler (this=0x7f39a8037e40, 
    ioc=Glib::IO_IN) at ../libs/pbd/base_ui.cc:122
#5  0x00007f39cbd9e599 in sigc::bound_mem_functor1<bool, BaseUI, Glib::IOCondition>::operator() (this=0x7f39a801f1f8, _A_a1=@0x7f39b62369fc)
    at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1851
#6  0x00007f39cbd9e385 in sigc::adaptor_functor<sigc::bound_mem_functor1<bool, BaseUI, Glib::IOCondition> >::operator()<Glib::IOCondition const&> (
    this=0x7f39a801f1f0, _A_arg1=@0x7f39b62369fc)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:84
---Type <return> to continue, or q <return> to quit---
#7  0x00007f39cbd9e0b4 in sigc::internal::slot_call1<sigc::bound_mem_functor1<bool, BaseUI, Glib::IOCondition>, bool, Glib::IOCondition>::call_it (
    rep=0x7f39a801f1c0, a_1=@0x7f39b62369fc)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:137
#8  0x00007f39cb850dcc in Glib::IOSource::dispatch(sigc::slot_base*) ()
   from /usr/lib/libglibmm-2.4.so.1
#9  0x00007f39cb8509df in Glib::Source::dispatch_vfunc(_GSource*, int (*)(void*), void*) () from /usr/lib/libglibmm-2.4.so.1
#10 0x00007f39caf00a5d in g_main_context_dispatch ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f39caf01258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f39caf01792 in g_main_loop_run ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f39cbd9d2af in BaseUI::main_thread (this=0x7f39a8037e40)
    at ../libs/pbd/base_ui.cc:77
#14 0x00007f39cbd9e653 in sigc::bound_mem_functor0<void, BaseUI>::operator() (
    this=0x7f39a8055948)
    at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#15 0x00007f39cbd9e4b8 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x7f39a8055940)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#16 0x00007f39cbd9e229 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x7f39a8055910)
---Type <return> to continue, or q <return> to quit---
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#17 0x00007f39cb84ab3d in ?? () from /usr/lib/libglibmm-2.4.so.1
#18 0x00007f39caf262b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f39c6abaefc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#20 0x00007f39c67f559d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#21 0x0000000000000000 in ?? ()