^Z
Program received signal SIGTSTP, Stopped (user).
0x00007fffedc52be4 in __lll_lock_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
(gdb) tread apply all bt
Undefined command: "tread".  Try "help".
(gdb) thread apply all bt

Thread 50 (Thread 0x7fffdb304820 (LWP 15744)):
#0  0x00007fffedc538dd in nanosleep ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff2aeee08 in g_usleep ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6979e34 in ARDOUR::AudioEngine::meter_thread (
    this=0x7fffcc05a9a0) at ../libs/ardour/audioengine.cc:697
#3  0x00007ffff699b153 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x7fffac1febc0, p=0x7fffcc05a9a0)
    at /usr/local/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff6996522 in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x7fffac1febd0, f=..., a=...)
    at /usr/local/include/boost/bind/bind.hpp:253
#5  0x00007ffff6991f6d in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x7fffac1febc0)
    at /usr/local/include/boost/bind/bind_template.hpp:20
#6  0x00007ffff698d12a 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=0x7fffac1febc0)
    at /usr/local/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
---Type <return> to continue, or q <return> to quit---
#7  0x00007ffff6988a70 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=0x7fffac1feb90)
    at /usr/local/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff361ad52 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2aec384 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglib-2.0.so.0
#10 0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 49 (Thread 0x7fffdb143700 (LWP 15743)):
#0  0x00007fffec28621d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffec2b3e54 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fffdb32f527 in AFX_engine::run_engine() ()
   from /usr/lib/lv2/sr-2b.lv2/sr-2b-lv2.so
#3  0x00007fffdb326453 in start_ui_thread(void*) ()
   from /usr/lib/lv2/sr-2b.lv2/sr-2b-lv2.so
#4  0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
---Type <return> to continue, or q <return> to quit---
#6  0x0000000000000000 in ?? ()

Thread 48 (Thread 0x7fffb2da3700 (LWP 15742)):
#0  0x00007fffec28621d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffec2b3e54 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fffdb6607e7 in AFX_engine::run_engine() ()
   from /usr/lib/lv2/pro-eq1.lv2/pro-eq1-lv2.so
#3  0x00007fffdb656f03 in start_ui_thread(void*) ()
   from /usr/lib/lv2/pro-eq1.lv2/pro-eq1-lv2.so
#4  0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 41 (Thread 0x7fffd9fbe700 (LWP 15735)):
#0  0x00007fffec2ae473 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff2ac88b7 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2ac8c85 in g_main_loop_run ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff4b5a65d in BaseUI::main_thread (this=0x7fffccd636c0)
    at ../libs/pbd/base_ui.cc:77
#4  0x00007ffff4b5bb19 in sigc::bound_mem_functor0<void, BaseUI>::operator() (
---Type <return> to continue, or q <return> to quit---
    this=0x7fffccdd6a38)
    at /usr/local/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff4b5b974 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x7fffccdd6a30)
    at /usr/local/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#6  0x00007ffff4b5b6cd in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x7fffccdd6a00)
    at /usr/local/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff361ad52 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2aec384 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglib-2.0.so.0
#9  0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 40 (Thread 0x7fffb2e1d820 (LWP 15734)):
#0  0x00007fffec2ae473 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff6a01bcc in ARDOUR::Butler::thread_work (this=0x7fffccbf0870)
    at ../libs/ardour/butler.cc:153
#2  0x00007ffff6a01b53 in ARDOUR::Butler::_thread_work (arg=0x7fffccbf0870)
    at ../libs/ardour/butler.cc:137
---Type <return> to continue, or q <return> to quit---
#3  0x00007ffff4b96882 in fake_thread_start (arg=0x7fffccf0cd90)
    at ../libs/pbd/pthread_utils.cc:81
#4  0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 39 (Thread 0x7fffb2e9f700 (LWP 15733)):
#0  0x00007fffedc52300 in sem_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff6afca88 in PBD::ProcessSemaphore::wait (this=0x7fffccbf4718)
    at /home/harrison/ardour/3.0/libs/pbd/pbd/semutils.h:41
#2  0x00007ffff6afae2e in ARDOUR::Graph::run_one (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:375
#3  0x00007ffff6afb156 in ARDOUR::Graph::helper_thread (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:406
#4  0x00007ffff6b005a7 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7fffb2e9eca8, p=0x7fffccbf4660)
    at /usr/local/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff6b001f0 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7fffb2e9ecb8, f=..., a=...)
    at /usr/local/include/boost/bind/bind.hpp:253
---Type <return> to continue, or q <return> to quit---
#6  0x00007ffff6affee1 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7fffb2e9eca8) at /usr/local/include/boost/bind/bind_template.hpp:20
#7  0x00007ffff6affa97 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/local/include/boost/function/function_template.hpp:153
#8  0x000000000103d6d5 in boost::function0<void>::operator() (
    this=0x7fffb2e9eca0)
    at /usr/local/include/boost/function/function_template.hpp:1013
#9  0x00007ffff697d707 in ARDOUR::AudioEngine::_start_process_thread (
    arg=0x7fffccc04ae0) at ../libs/ardour/audioengine.cc:1506
#10 0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 38 (Thread 0x7fffb2f20700 (LWP 15732)):
#0  0x00007fffedc52300 in sem_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff6afca88 in PBD::ProcessSemaphore::wait (this=0x7fffccbf4718)
    at /home/harrison/ardour/3.0/libs/pbd/pbd/semutils.h:41
#2  0x00007ffff6afae2e in ARDOUR::Graph::run_one (this=0x7fffccbf4660)
---Type <return> to continue, or q <return> to quit---
    at ../libs/ardour/graph.cc:375
#3  0x00007ffff6afb156 in ARDOUR::Graph::helper_thread (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:406
#4  0x00007ffff6b005a7 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7fffb2f1fca8, p=0x7fffccbf4660)
    at /usr/local/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff6b001f0 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7fffb2f1fcb8, f=..., a=...)
    at /usr/local/include/boost/bind/bind.hpp:253
#6  0x00007ffff6affee1 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7fffb2f1fca8) at /usr/local/include/boost/bind/bind_template.hpp:20
#7  0x00007ffff6affa97 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/local/include/boost/function/function_template.hpp:153
#8  0x000000000103d6d5 in boost::function0<void>::operator() (
    this=0x7fffb2f1fca0)
    at /usr/local/include/boost/function/function_template.hpp:1013
#9  0x00007ffff697d707 in ARDOUR::AudioEngine::_start_process_thread (
    arg=0x7fffccc04ae0) at ../libs/ardour/audioengine.cc:1506
#10 0x00007fffedc4befc in start_thread ()
---Type <return> to continue, or q <return> to quit---
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 37 (Thread 0x7fffb2fa1700 (LWP 15731)):
#0  0x00007fffedc52300 in sem_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff6afca88 in PBD::ProcessSemaphore::wait (this=0x7fffccbf4718)
    at /home/harrison/ardour/3.0/libs/pbd/pbd/semutils.h:41
#2  0x00007ffff6afae2e in ARDOUR::Graph::run_one (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:375
#3  0x00007ffff6afb156 in ARDOUR::Graph::helper_thread (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:406
#4  0x00007ffff6b005a7 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7fffb2fa0ca8, p=0x7fffccbf4660)
    at /usr/local/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff6b001f0 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7fffb2fa0cb8, f=..., a=...)
    at /usr/local/include/boost/bind/bind.hpp:253
#6  0x00007ffff6affee1 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7fffb2fa0ca8) at /usr/local/include/boost/bind/bind_template.hpp:20
---Type <return> to continue, or q <return> to quit---
#7  0x00007ffff6affa97 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/local/include/boost/function/function_template.hpp:153
#8  0x000000000103d6d5 in boost::function0<void>::operator() (
    this=0x7fffb2fa0ca0)
    at /usr/local/include/boost/function/function_template.hpp:1013
#9  0x00007ffff697d707 in ARDOUR::AudioEngine::_start_process_thread (
    arg=0x7fffccc04ae0) at ../libs/ardour/audioengine.cc:1506
#10 0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 36 (Thread 0x7fffb3022700 (LWP 15730)):
#0  0x00007fffedc52300 in sem_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff6afca88 in PBD::ProcessSemaphore::wait (this=0x7fffccbf4718)
    at /home/harrison/ardour/3.0/libs/pbd/pbd/semutils.h:41
#2  0x00007ffff6afae2e in ARDOUR::Graph::run_one (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:375
#3  0x00007ffff6afb156 in ARDOUR::Graph::helper_thread (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:406
---Type <return> to continue, or q <return> to quit---
#4  0x00007ffff6b005a7 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7fffb3021ca8, p=0x7fffccbf4660)
    at /usr/local/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff6b001f0 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7fffb3021cb8, f=..., a=...)
    at /usr/local/include/boost/bind/bind.hpp:253
#6  0x00007ffff6affee1 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7fffb3021ca8) at /usr/local/include/boost/bind/bind_template.hpp:20
#7  0x00007ffff6affa97 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/local/include/boost/function/function_template.hpp:153
#8  0x000000000103d6d5 in boost::function0<void>::operator() (
    this=0x7fffb3021ca0)
    at /usr/local/include/boost/function/function_template.hpp:1013
#9  0x00007ffff697d707 in ARDOUR::AudioEngine::_start_process_thread (
    arg=0x7fffccc04ae0) at ../libs/ardour/audioengine.cc:1506
#10 0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()
---Type <return> to continue, or q <return> to quit---

Thread 35 (Thread 0x7fffb30a3700 (LWP 15729)):
#0  0x00007fffedc52300 in sem_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff6afca88 in PBD::ProcessSemaphore::wait (this=0x7fffccbf4718)
    at /home/harrison/ardour/3.0/libs/pbd/pbd/semutils.h:41
#2  0x00007ffff6afae2e in ARDOUR::Graph::run_one (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:375
#3  0x00007ffff6afb156 in ARDOUR::Graph::helper_thread (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:406
#4  0x00007ffff6b005a7 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7fffb30a2ca8, p=0x7fffccbf4660)
    at /usr/local/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff6b001f0 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7fffb30a2cb8, f=..., a=...)
    at /usr/local/include/boost/bind/bind.hpp:253
#6  0x00007ffff6affee1 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7fffb30a2ca8) at /usr/local/include/boost/bind/bind_template.hpp:20
#7  0x00007ffff6affa97 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=...)
---Type <return> to continue, or q <return> to quit---
    at /usr/local/include/boost/function/function_template.hpp:153
#8  0x000000000103d6d5 in boost::function0<void>::operator() (
    this=0x7fffb30a2ca0)
    at /usr/local/include/boost/function/function_template.hpp:1013
#9  0x00007ffff697d707 in ARDOUR::AudioEngine::_start_process_thread (
    arg=0x7fffccc04ae0) at ../libs/ardour/audioengine.cc:1506
#10 0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 34 (Thread 0x7fffb3124700 (LWP 15728)):
#0  0x00007fffedc52300 in sem_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff6afca88 in PBD::ProcessSemaphore::wait (this=0x7fffccbf4718)
    at /home/harrison/ardour/3.0/libs/pbd/pbd/semutils.h:41
#2  0x00007ffff6afae2e in ARDOUR::Graph::run_one (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:375
#3  0x00007ffff6afb156 in ARDOUR::Graph::helper_thread (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:406
#4  0x00007ffff6b005a7 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7fffb3123ca8, p=0x7fffccbf4660)
    at /usr/local/include/boost/bind/mem_fn_template.hpp:49
---Type <return> to continue, or q <return> to quit---
#5  0x00007ffff6b001f0 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7fffb3123cb8, f=..., a=...)
    at /usr/local/include/boost/bind/bind.hpp:253
#6  0x00007ffff6affee1 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7fffb3123ca8) at /usr/local/include/boost/bind/bind_template.hpp:20
#7  0x00007ffff6affa97 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/local/include/boost/function/function_template.hpp:153
#8  0x000000000103d6d5 in boost::function0<void>::operator() (
    this=0x7fffb3123ca0)
    at /usr/local/include/boost/function/function_template.hpp:1013
#9  0x00007ffff697d707 in ARDOUR::AudioEngine::_start_process_thread (
    arg=0x7fffccc04ae0) at ../libs/ardour/audioengine.cc:1506
#10 0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 33 (Thread 0x7fffd00d1700 (LWP 15727)):
#0  0x00007fffedc52300 in sem_wait ()
---Type <return> to continue, or q <return> to quit---
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff6afca88 in PBD::ProcessSemaphore::wait (this=0x7fffccbf4738)
    at /home/harrison/ardour/3.0/libs/pbd/pbd/semutils.h:41
#2  0x00007ffff6afa283 in ARDOUR::Graph::restart_cycle (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:249
#3  0x00007ffff6afa24d in ARDOUR::Graph::dec_ref (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:236
#4  0x00007ffff6b01186 in ARDOUR::GraphNode::finish (this=0x3b7dcb0, chain=0)
    at ../libs/ardour/graphnode.cc:71
#5  0x00007ffff6afafee in ARDOUR::Graph::run_one (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:389
#6  0x00007ffff6afb44e in ARDOUR::Graph::main_thread (this=0x7fffccbf4660)
    at ../libs/ardour/graph.cc:444
#7  0x00007ffff6b005a7 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7fffd00d0ca8, p=0x7fffccbf4660)
    at /usr/local/include/boost/bind/mem_fn_template.hpp:49
#8  0x00007ffff6b001f0 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7fffd00d0cb8, f=..., a=...)
    at /usr/local/include/boost/bind/bind.hpp:253
#9  0x00007ffff6affee1 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7fffd00d0ca8) at /usr/local/include/boost/bind/bind_template.hpp:20
---Type <return> to continue, or q <return> to quit---
#10 0x00007ffff6affa97 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/local/include/boost/function/function_template.hpp:153
#11 0x000000000103d6d5 in boost::function0<void>::operator() (
    this=0x7fffd00d0ca0)
    at /usr/local/include/boost/function/function_template.hpp:1013
#12 0x00007ffff697d707 in ARDOUR::AudioEngine::_start_process_thread (
    arg=0x7fffccc04ae0) at ../libs/ardour/audioengine.cc:1506
#13 0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#14 0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#15 0x0000000000000000 in ?? ()

Thread 32 (Thread 0x7fffd80ce700 (LWP 15726)):
#0  0x00007fffedc523f1 in sem_timedwait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fffede84db2 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007fffede73d19 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffede72877 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007ffff6978ff0 in ARDOUR::AudioEngine::process_thread (
    this=0x7fffcc05a9a0) at ../libs/ardour/audioengine.cc:444
#5  0x00007ffff69788de in ARDOUR::AudioEngine::_process_thread (
---Type <return> to continue, or q <return> to quit---
    arg=0x7fffcc05a9a0) at ../libs/ardour/audioengine.cc:342
#6  0x00007fffede71317 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#7  0x00007fffede843d0 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#8  0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 31 (Thread 0x7fffda141700 (LWP 15725)):
#0  0x00007fffedc530dd in read () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fffede8609a in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007fffede889d6 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffede843d0 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 30 (Thread 0x7ffff7e82700 (LWP 15724)):
#0  0x00007fffedc5004c in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fffede859b1 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007fffede81165 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
---Type <return> to continue, or q <return> to quit---
#3  0x00007fffede843d0 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fffe62f0700 (LWP 15696)):
#0  0x00007fffedc5004c in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff68ffc2b in ARDOUR::Analyser::work ()
    at ../libs/ardour/analyser.cc:85
#2  0x00007ffff68ff959 in analyser_work () at ../libs/ardour/analyser.cc:49
#3  0x000000000167caa3 in sigc::pointer_functor0<void>::operator() (
    this=0x299b3f8)
    at /usr/local/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x000000000167a0e8 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x299b3f0)
    at /usr/local/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#5  0x0000000001676e97 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x299b3c0)
    at /usr/local/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff361ad52 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglibmm-2.4.so.1
---Type <return> to continue, or q <return> to quit---
#7  0x00007ffff2aec384 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglib-2.0.so.0
#8  0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fffe6af1700 (LWP 15695)):
#0  0x00007fffedc5004c in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff6e3e8bb in peak_thread_work ()
    at ../libs/ardour/source_factory.cc:68
#2  0x000000000167caa3 in sigc::pointer_functor0<void>::operator() (
    this=0x2999658)
    at /usr/local/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#3  0x000000000167a0e8 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x2999650)
    at /usr/local/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#4  0x0000000001676e97 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x2999620)
    at /usr/local/include/sigc++-2.0/sigc++/functors/slot.h:103
#5  0x00007ffff361ad52 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglibmm-2.4.so.1
---Type <return> to continue, or q <return> to quit---
#6  0x00007ffff2aec384 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglib-2.0.so.0
#7  0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#9  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fffe72f2700 (LWP 15694)):
#0  0x00007fffedc5004c in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff6e3e8bb in peak_thread_work ()
    at ../libs/ardour/source_factory.cc:68
#2  0x000000000167caa3 in sigc::pointer_functor0<void>::operator() (
    this=0x299bd38)
    at /usr/local/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#3  0x000000000167a0e8 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x299bd30)
    at /usr/local/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#4  0x0000000001676e97 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x299bd00)
    at /usr/local/include/sigc++-2.0/sigc++/functors/slot.h:103
#5  0x00007ffff361ad52 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglibmm-2.4.so.1
---Type <return> to continue, or q <return> to quit---
#6  0x00007ffff2aec384 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglib-2.0.so.0
#7  0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#9  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fffe7af3700 (LWP 15693)):
#0  0x00007fffec28621d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffec2b3e54 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x000000000193136e in gui_event_loop (ptr=0x0)
    at ../gtk2_ardour/linux_vst_gui_support.cc:363
#3  0x00007fffedc4befc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007fffec2ba59d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ffff7fad900 (LWP 15690)):
#0  0x00007fffedc52be4 in __lll_lock_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fffedc4e1e5 in _L_lock_883 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#2  0x00007fffedc4e03a in pthread_mutex_lock ()
---Type <return> to continue, or q <return> to quit---
   from /lib/x86_64-linux-gnu/libpthread.so.0
#3  0x0000000000fcb586 in Glib::Mutex::Lock::Lock (this=0x7fffffffb8a0, 
    mutex=...) at /usr/local/include/glibmm-2.4/glibmm/thread.h:810
#4  0x00007ffff6cd3970 in ARDOUR::Route::remove_send_from_internal_return (
    this=0x3b7db30, send=0x3c0d720) at ../libs/ardour/route.cc:2614
#5  0x00007ffff6b08e71 in ARDOUR::InternalSend::~InternalSend (this=0x3c0d720, 
    __in_chrg=<optimized out>, __vtt_parm=<optimized out>)
    at ../libs/ardour/internal_send.cc:59
#6  0x00007ffff6cec884 in void boost::checked_delete<ARDOUR::InternalSend>(ARDOUR::InternalSend*) () from /opt/Ardour-3.0beta3_11482-dbg/lib/libardour.so.3
#7  0x00007ffff6cff72e in boost::detail::sp_counted_impl_p<ARDOUR::InternalSend>::dispose() () from /opt/Ardour-3.0beta3_11482-dbg/lib/libardour.so.3
#8  0x0000000000fb50ea in boost::detail::sp_counted_base::release (
    this=0x3c11bb0)
    at /usr/local/include/boost/smart_ptr/detail/sp_counted_base_gcc_x86.hpp:145
#9  0x0000000000fb5179 in boost::detail::shared_count::~shared_count (
    this=0x7fffffffb9e8, __in_chrg=<optimized out>)
    at /usr/local/include/boost/smart_ptr/detail/shared_count.hpp:217
#10 0x0000000001550242 in boost::shared_ptr<ARDOUR::InternalSend>::~shared_ptr
    (this=0x7fffffffb9e0, __in_chrg=<optimized out>)
    at /usr/local/include/boost/smart_ptr/shared_ptr.hpp:169
#11 0x00007ffff6cd44e3 in ARDOUR::Route::remove_aux_or_listen (
---Type <return> to continue, or q <return> to quit---
    this=0x7fffcfa4e150, route=...) at ../libs/ardour/route.cc:2704
#12 0x00007ffff6d225b9 in ARDOUR::Session::remove_monitor_section (
    this=0x7fffccbe7f10) at ../libs/ardour/session.cc:642
#13 0x00000000017ae756 in SessionOptionEditor::set_use_monitor_section (
    this=0x3b53ea0, yn=false) at ../gtk2_ardour/session_option_editor.cc:364
#14 0x00000000017c1972 in sigc::bound_mem_functor1<bool, SessionOptionEditor, bool>::operator() (this=0x7fffac7fd6a8, _A_a1=@0x7fffffffbc4f)
    at /usr/local/include/sigc++-2.0/sigc++/functors/mem_fun.h:1851
#15 0x00000000017bf841 in sigc::adaptor_functor<sigc::bound_mem_functor1<bool, SessionOptionEditor, bool> >::operator()<bool const&> (this=0x7fffac7fd6a0, 
    _A_arg1=@0x7fffffffbc4f)
    at /usr/local/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:84
#16 0x00000000017bc54e in sigc::internal::slot_call1<sigc::bound_mem_functor1<bool, SessionOptionEditor, bool>, bool, bool>::call_it (rep=0x7fffac7fd670, 
    a_1=@0x7fffffffbc4f)
    at /usr/local/include/sigc++-2.0/sigc++/functors/slot.h:137
#17 0x0000000000fb3579 in sigc::slot1<bool, bool>::operator() (
    this=0x7fffac618f70, _A_a1=@0x7fffffffbc4f)
    at /usr/local/include/sigc++-2.0/sigc++/functors/slot.h:515
#18 0x00000000015b7112 in BoolOption::toggled (this=0x7fffac618f40)
    at ../gtk2_ardour/option_editor.cc:136
#19 0x00000000015bf12b in sigc::bound_mem_functor0<void, BoolOption>::operator() (this=0x7fffac5e5ac8)
---Type <return> to continue, or q <return> to quit---
    at /usr/local/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#20 0x00000000015bea26 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BoolOption> >::operator() (this=0x7fffac5e5ac0)
    at /usr/local/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#21 0x00000000015bdd8f in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BoolOption>, void>::call_it (rep=0x7fffac5e5a90)
    at /usr/local/include/sigc++-2.0/sigc++/functors/slot.h:103
#22 0x00007ffff3623142 in Glib::SignalProxyNormal::slot0_void_callback(_GObject*, void*) () from /opt/Ardour-3.0beta3_11482-dbg/lib/libglibmm-2.4.so.1
#23 0x00007ffff33a79bf in g_closure_invoke ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#24 0x00007ffff33becba in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#25 0x00007ffff33c0784 in g_signal_emit_valist ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#26 0x00007ffff33c0b83 in g_signal_emit ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#27 0x00007ffff265eff8 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgtk-x11-2.0.so.0
#28 0x00007ffff33a79bf in g_closure_invoke ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#29 0x00007ffff33be60e in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#30 0x00007ffff33c0784 in g_signal_emit_valist ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#31 0x00007ffff33c0b83 in g_signal_emit ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#32 0x00007ffff265ed95 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgtk-x11-2.0.so.0
#33 0x00007ffff33a79bf in g_closure_invoke ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#34 0x00007ffff33be60e in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#35 0x00007ffff33c0784 in g_signal_emit_valist ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#36 0x00007ffff33c0b83 in g_signal_emit ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#37 0x00007ffff24f8f69 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgtk-x11-2.0.so.0
#38 0x00007ffff25a30cf in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgtk-x11-2.0.so.0
#39 0x00007ffff33a79bf in g_closure_invoke ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#40 0x00007ffff33beb36 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#41 0x00007ffff33c0486 in g_signal_emit_valist ()
---Type <return> to continue, or q <return> to quit---
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#42 0x00007ffff33c0b83 in g_signal_emit ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgobject-2.0.so.0
#43 0x00007ffff26b2cd5 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgtk-x11-2.0.so.0
#44 0x00007ffff259bd79 in gtk_propagate_event ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgtk-x11-2.0.so.0
#45 0x00007ffff259ce97 in gtk_main_do_event ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgtk-x11-2.0.so.0
#46 0x00007ffff22122fc in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgdk-x11-2.0.so.0
#47 0x00007ffff2ac4ff5 in g_main_context_dispatch ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglib-2.0.so.0
#48 0x00007ffff2ac88a0 in ?? ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglib-2.0.so.0
#49 0x00007ffff2ac8c85 in g_main_loop_run ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libglib-2.0.so.0
#50 0x00007ffff259d233 in gtk_main ()
   from /opt/Ardour-3.0beta3_11482-dbg/lib/libgtk-x11-2.0.so.0
#51 0x00007ffff5021a5e in Gtkmm2ext::UI::run (this=0x274d4a0, old_receiver=...)
    at ../libs/gtkmm2ext/gtk_ui.cc:266
#52 0x000000000149fddb in main (argc=1, argv=0x7fffffffd718)
    at ../gtk2_ardour/main.cc:555
(gdb)