[Thread 0x7fff71424700 (LWP 2324) exited]

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff359b2f7 in Gtk::Widget::get_visible() const ()
   from /usr/lib/x86_64-linux-gnu/libgtkmm-2.4.so.1
(gdb) thread apply all bt

Thread 99 (Thread 0x7fff70a65700 (LWP 2302)):
#0  0x00007ffff08e583d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff0913774 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff73613d2 in ARDOUR::AutomationWatch::thread (this=0xf04ccd0)
    at ../libs/ardour/automation_watch.cc:135
#3  0x00007ffff73648fa in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator() (this=0x4db1bbc0, p=0xf04ccd0)
    at /usr/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff7364566 in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0> (this=0x4db1bbd0, f=..., a=...)
    at /usr/include/boost/bind/bind.hpp:253
#5  0x00007ffff7364131 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator() (this=0x4db1bbc0)
    at /usr/include/boost/bind/bind_template.hpp:20
#6  0x00007ffff73640c6 in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > > >::operator() (this=0x4db1bbc0)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#7  0x00007ffff7363c4c in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::val---Type <return> to continue, or q <return> to quit---
ue<ARDOUR::AutomationWatch*> > >, void>::call_it (rep=0x4db1bb90)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff57bff9d in ?? ()
   from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#9  0x00007ffff50a09e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 98 (Thread 0x7fff97f7e700 (LWP 2301)):
#0  0x00007ffff198b52d in nanosleep ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff50a20a2 in g_usleep ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff73175ea in ARDOUR::AudioEngine::meter_thread (this=0x3143230)
    at ../libs/ardour/audioengine.cc:764
#3  0x00007ffff7329868 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x4f13f6a0, p=0x3143230)
    at /usr/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff73292bc in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x4f13f6b0, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
---Type <return> to continue, or q <return> to quit---
#5  0x00007ffff73287a1 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x4f13f6a0) at /usr/include/boost/bind/bind_template.hpp:20
#6  0x00007ffff7327ae0 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=0x4f13f6a0)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#7  0x00007ffff7326446 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=0x4f13f670)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff57bff9d in ?? ()
   from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#9  0x00007ffff50a09e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 97 (Thread 0x7fff72e12700 (LWP 2300)):
#0  0x00007ffff090e303 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff507f036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff507f49a in g_main_loop_run ()
---Type <return> to continue, or q <return> to quit---
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff5ebb1df in BaseUI::main_thread (this=0x107198d0)
    at ../libs/pbd/base_ui.cc:80
#4  0x00007ffff5ebe919 in sigc::bound_mem_functor0<void, BaseUI>::operator() (
    this=0x1004aa18) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff5ebe65a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x1004aa10)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#6  0x00007ffff5ebe041 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x1004a9e0)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff57bff9d in ?? ()
   from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#8  0x00007ffff50a09e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 96 (Thread 0x7fffd37fd800 (LWP 2299)):
#0  0x00007ffff090e303 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff7373d75 in ARDOUR::Butler::thread_work (this=0x4e4e5150)
    at ../libs/ardour/butler.cc:150
---Type <return> to continue, or q <return> to quit---
#2  0x00007ffff7373ccf in ARDOUR::Butler::_thread_work (arg=0x4e4e5150)
    at ../libs/ardour/butler.cc:134
#3  0x00007ffff5ee21c0 in fake_thread_start (arg=0x10719710)
    at ../libs/pbd/pthread_utils.cc:80
#4  0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 95 (Thread 0x7fff97fff700 (LWP 2298)):
#0  0x00007ffff1989fd0 in sem_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff7435fe0 in PBD::ProcessSemaphore::wait (this=0x43d513f0)
    at /home/zth/gits/ardour/libs/pbd/pbd/semutils.h:41
#2  0x00007ffff74345df in ARDOUR::Graph::run_one (this=0x43d51330)
    at ../libs/ardour/graph.cc:380
#3  0x00007ffff7434939 in ARDOUR::Graph::helper_thread (this=0x43d51330)
    at ../libs/ardour/graph.cc:411
#4  0x00007ffff74399c2 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7fff97ffebe8, p=0x43d51330)
    at /usr/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff7439618 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
---Type <return> to continue, or q <return> to quit---
    this=0x7fff97ffebf8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#6  0x00007ffff743930b in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7fff97ffebe8) at /usr/include/boost/bind/bind_template.hpp:20
#7  0x00007ffff7438ecd 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  0x0000000000e38f5e in boost::function0<void>::operator() (
    this=0x7fff97ffebe0)
    at /usr/include/boost/function/function_template.hpp:1013
#9  0x00007ffff731a903 in ARDOUR::AudioEngine::_start_process_thread (
    arg=0xf51d990) at ../libs/ardour/audioengine.cc:1572
#10 0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 94 (Thread 0x7fff9c6ea700 (LWP 2297)):
#0  0x00007ffff1989fd0 in sem_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff7435fe0 in PBD::ProcessSemaphore::wait (this=0x43d51410)
    at /home/zth/gits/ardour/libs/pbd/pbd/semutils.h:41
---Type <return> to continue, or q <return> to quit---
#2  0x00007ffff7433bef in ARDOUR::Graph::restart_cycle (this=0x43d51330)
    at ../libs/ardour/graph.cc:254
#3  0x00007ffff7433bb9 in ARDOUR::Graph::dec_ref (this=0x43d51330)
    at ../libs/ardour/graph.cc:241
#4  0x00007ffff743a03a in ARDOUR::GraphNode::finish (this=0x4e438ed8, chain=1)
    at ../libs/ardour/graphnode.cc:71
#5  0x00007ffff7434751 in ARDOUR::Graph::run_one (this=0x43d51330)
    at ../libs/ardour/graph.cc:394
#6  0x00007ffff7434939 in ARDOUR::Graph::helper_thread (this=0x43d51330)
    at ../libs/ardour/graph.cc:411
#7  0x00007ffff74399c2 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7fff9c6e9be8, p=0x43d51330)
    at /usr/include/boost/bind/mem_fn_template.hpp:49
#8  0x00007ffff7439618 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7fff9c6e9bf8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#9  0x00007ffff743930b in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7fff9c6e9be8) at /usr/include/boost/bind/bind_template.hpp:20
#10 0x00007ffff7438ecd 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---
#11 0x0000000000e38f5e in boost::function0<void>::operator() (
    this=0x7fff9c6e9be0)
    at /usr/include/boost/function/function_template.hpp:1013
#12 0x00007ffff731a903 in ARDOUR::AudioEngine::_start_process_thread (
    arg=0xf51ccc0) at ../libs/ardour/audioengine.cc:1572
#13 0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#14 0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#15 0x0000000000000000 in ?? ()

Thread 93 (Thread 0x7fff9c76b700 (LWP 2296)):
#0  0x00007ffff1989fd0 in sem_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff7435fe0 in PBD::ProcessSemaphore::wait (this=0x43d513f0)
    at /home/zth/gits/ardour/libs/pbd/pbd/semutils.h:41
#2  0x00007ffff74345df in ARDOUR::Graph::run_one (this=0x43d51330)
    at ../libs/ardour/graph.cc:380
#3  0x00007ffff7434b67 in ARDOUR::Graph::main_thread (this=0x43d51330)
    at ../libs/ardour/graph.cc:449
#4  0x00007ffff74399c2 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7fff9c76abe8, p=0x43d51330)
    at /usr/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff7439618 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >:---Type <return> to continue, or q <return> to quit---
:operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7fff9c76abf8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#6  0x00007ffff743930b in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7fff9c76abe8) at /usr/include/boost/bind/bind_template.hpp:20
#7  0x00007ffff7438ecd 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  0x0000000000e38f5e in boost::function0<void>::operator() (
    this=0x7fff9c76abe0)
    at /usr/include/boost/function/function_template.hpp:1013
#9  0x00007ffff731a903 in ARDOUR::AudioEngine::_start_process_thread (
    arg=0x2f9c2670) at ../libs/ardour/audioengine.cc:1572
#10 0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 73 (Thread 0x7fff9777d700 (LWP 2276)):
#0  0x00007ffff090e303 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff507f036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff507f49a in g_main_loop_run ()
---Type <return> to continue, or q <return> to quit---
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff5ebb1df in BaseUI::main_thread (this=0x111f8340)
    at ../libs/pbd/base_ui.cc:80
#4  0x00007ffff5ebe919 in sigc::bound_mem_functor0<void, BaseUI>::operator() (
    this=0x111f8aa8) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff5ebe65a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x111f8aa0)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#6  0x00007ffff5ebe041 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x111f8a70)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff57bff9d in ?? ()
   from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#8  0x00007ffff50a09e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 57 (Thread 0x7fff94f78700 (LWP 2188)):
#0  0x00007ffff08e583d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff0913774 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff95178eb7 in AFX_engine::run_engine() ()
---Type <return> to continue, or q <return> to quit---
   from /usr/lib/lv2/mkii-graph-eq2.lv2/mkii-graph-eq2-lv2.so
#3  0x00007fff95166773 in start_ui_thread(void*) ()
   from /usr/lib/lv2/mkii-graph-eq2.lv2/mkii-graph-eq2-lv2.so
#4  0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 53 (Thread 0x7fff73fff700 (LWP 2169)):
#0  0x00007ffff08e583d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff0913774 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff9556fe47 in AFX_engine::run_engine() ()
   from /usr/lib/lv2/mkii-graph-eq1.lv2/mkii-graph-eq1-lv2.so
#3  0x00007fff9555e6d3 in start_ui_thread(void*) ()
   from /usr/lib/lv2/mkii-graph-eq1.lv2/mkii-graph-eq1-lv2.so
#4  0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 20 (Thread 0x7fffd2ffd700 (LWP 2126)):
#0  0x00007ffff090e303 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff507f036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#2  0x00007ffff507f49a in g_main_loop_run ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff5ebb1df in BaseUI::main_thread (this=0x4a44690)
    at ../libs/pbd/base_ui.cc:80
#4  0x00007ffff5ebe919 in sigc::bound_mem_functor0<void, BaseUI>::operator() (
    this=0x4a53a68) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff5ebe65a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x4a53a60)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#6  0x00007ffff5ebe041 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x4a53a30)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff57bff9d in ?? ()
   from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#8  0x00007ffff50a09e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7fffb8098700 (LWP 2121)):
#0  0x00007ffff090e303 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff1ba2586 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
---Type <return> to continue, or q <return> to quit---
#2  0x00007ffff1ba290a in jack_cycle_wait ()
   from /usr/lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007ffff73164b6 in ARDOUR::AudioEngine::process_thread (this=0x3143230)
    at ../libs/ardour/audioengine.cc:446
#4  0x00007ffff7315cda in ARDOUR::AudioEngine::_process_thread (arg=0x3143230)
    at ../libs/ardour/audioengine.cc:337
#5  0x00007ffff1ba2802 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#6  0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#8  0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7fffd3fff700 (LWP 2118)):
#0  0x00007ffff1987d84 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff1ba3dc3 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#3  0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fffe2382700 (LWP 2107)):
#0  0x00007ffff1987d84 in pthread_cond_wait@@GLIBC_2.3.2 ()
---Type <return> to continue, or q <return> to quit---
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff50ba82f in g_cond_wait ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff72cf597 in ARDOUR::Analyser::work ()
    at ../libs/ardour/analyser.cc:81
#3  0x00007ffff72cf389 in analyser_work () at ../libs/ardour/analyser.cc:46
#4  0x0000000001385d41 in sigc::pointer_functor0<void>::operator() (
    this=0x20e2308) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#5  0x000000000138357a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x20e2300)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#6  0x0000000001380117 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x20e22d0)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff57bff9d in ?? ()
   from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#8  0x00007ffff50a09e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fffe2b83700 (LWP 2106)):
---Type <return> to continue, or q <return> to quit---
#0  0x00007ffff1987d84 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff50ba82f in g_cond_wait ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff76adaa3 in peak_thread_work ()
    at ../libs/ardour/source_factory.cc:68
#3  0x0000000001385d41 in sigc::pointer_functor0<void>::operator() (
    this=0x20e2248) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x000000000138357a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x20e2240)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#5  0x0000000001380117 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x20e2210)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff57bff9d in ?? ()
   from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#7  0x00007ffff50a09e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fffe3384700 (LWP 2105)):
---Type <return> to continue, or q <return> to quit---
#0  0x00007ffff1987d84 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff50ba82f in g_cond_wait ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff76adaa3 in peak_thread_work ()
    at ../libs/ardour/source_factory.cc:68
#3  0x0000000001385d41 in sigc::pointer_functor0<void>::operator() (
    this=0x20e21f8) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x000000000138357a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x20e21f0)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#5  0x0000000001380117 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x20e21c0)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff57bff9d in ?? ()
   from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#7  0x00007ffff50a09e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fffe3b85700 (LWP 2104)):
---Type <return> to continue, or q <return> to quit---
#0  0x00007ffff08e583d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff0913774 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00000000015cbd9b in gui_event_loop (ptr=0x0)
    at ../gtk2_ardour/linux_vst_gui_support.cc:380
#3  0x00007ffff1983e9a in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007ffff0919cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ffff7fa19c0 (LWP 2101)):
#0  0x00007ffff359b2f7 in Gtk::Widget::get_visible() const ()
   from /usr/lib/x86_64-linux-gnu/libgtkmm-2.4.so.1
#1  0x00000000015c44a4 in WindowProxyBase::get_state (this=0x116e02f0)
    at ../gtk2_ardour/window_proxy.cc:125
#2  0x0000000000e4c2d5 in ARDOUR_UI::save_state (this=0x1eb0980, name=..., 
    switch_to_it=false) at ../gtk2_ardour/ardour_ui.cc:2259
#3  0x0000000000ea87ea in sigc::bound_mem_functor2<void, ARDOUR_UI, std::string const&, bool>::operator() (this=0x457a0e0, _A_a1=..., _A_a2=@0x457a108: false)
    at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1917
#4  0x0000000000ea793d in sigc::adaptor_functor<sigc::bound_mem_functor2<void, ARDOUR_UI, std::string const&, bool> >::operator()<std::string&, bool&> (
    this=0x457a0d8, _A_arg1=..., _A_arg2=@0x457a108: false)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:103
---Type <return> to continue, or q <return> to quit---
#5  0x0000000000ea62e4 in sigc::bind_functor<-1, sigc::bound_mem_functor2<void, ARDOUR_UI, std::string const&, bool>, std::string, bool, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::operator() (this=0x457a0d0)
    at /usr/include/sigc++-2.0/sigc++/adaptors/bind.h:1324
#6  0x0000000000ea46af in sigc::internal::slot_call0<sigc::bind_functor<-1, sigc::bound_mem_functor2<void, ARDOUR_UI, std::string const&, bool>, std::string, bool, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, void>::call_it (
    rep=0x457a0a0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff57cae08 in Glib::SignalProxyNormal::slot0_void_callback(_GObject*, void*) () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#8  0x00007ffff5540ca2 in g_closure_invoke ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#9  0x00007ffff5551fdd in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#10 0x00007ffff555a099 in g_signal_emit_valist ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#11 0x00007ffff555a242 in g_signal_emit ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#12 0x00007ffff4a72193 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#13 0x00007ffff4a72a39 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#14 0x00007ffff5540ca2 in g_closure_invoke ()
---Type <return> to continue, or q <return> to quit---
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#15 0x00007ffff5551d71 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#16 0x00007ffff5559d7e in g_signal_emit_valist ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#17 0x00007ffff555a242 in g_signal_emit ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#18 0x00007ffff4a6d394 in gtk_accel_group_activate ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#19 0x00007ffff4a6e769 in gtk_accel_groups_activate ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#20 0x00007ffff4c654bc in gtk_window_activate_key ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#21 0x00000000015b9e1f in key_press_focus_accelerator_handler (window=..., 
    ev=0x25721260) at ../gtk2_ardour/utils.cc:467
#22 0x0000000000f95a89 in Editor::on_key_press_event (this=0x3df08a0, 
    ev=0x25721260) at ../gtk2_ardour/editor.cc:4106
#23 0x00007ffff3597023 in Gtk::Widget_Class::key_press_event_callback(_GtkWidget*, _GdkEventKey*) () from /usr/lib/x86_64-linux-gnu/libgtkmm-2.4.so.1
#24 0x00007ffff4b33dd8 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#25 0x00007ffff5540ca2 in g_closure_invoke ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#26 0x00007ffff5552339 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#27 0x00007ffff5559d7e in g_signal_emit_valist ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#28 0x00007ffff555a242 in g_signal_emit ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#29 0x00007ffff4c4e191 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#30 0x00007ffff4b32037 in gtk_propagate_event ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#31 0x00007ffff4b322c3 in gtk_main_do_event ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#32 0x00007ffff47a6cac in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
#33 0x00007ffff507ed53 in g_main_context_dispatch ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007ffff507f0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007ffff507f49a in g_main_loop_run ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007ffff4b312f7 in gtk_main ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#37 0x00007ffff629f76b in Gtkmm2ext::UI::run (this=0x1eb0980, old_receiver=...)
    at ../libs/gtkmm2ext/gtk_ui.cc:270
---Type <return> to continue, or q <return> to quit---
#38 0x00000000011f0a83 in main (argc=1, argv=0x7fffffffd8d8)
    at ../gtk2_ardour/main.cc:525
(gdb)