ardour-6.7.25: /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/smart_ptr/shared_ptr.hpp:734: typename boost::detail::sp_member_access<T>::type boost::shared_ptr<T>::operator->() const [with T = ARDOUR::Playlist; typename boost::detail::sp_member_access<T>::type = ARDOUR::Playlist*]: Assertion `px != 0' failed.

Thread 1 "ArdourGUI" received signal SIGABRT, Aborted.
0x00007fffecb88711 in raise () from /lib64/libc.so.6

Thread 47 (Thread 0x7fff6d892640 (LWP 10352) "AutomationWatch"):
#0  0x00007fffecc11625 in clock_nanosleep () from /lib64/libc.so.6
#1  0x00007fffecc16443 in nanosleep () from /lib64/libc.so.6
#2  0x00007ffff2f37a38 in g_usleep () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff6a79572 in ARDOUR::AutomationWatch::thread (this=0x55555c1bfb10) at ../libs/ardour/automation_watch.cc:195
#4  0x00007ffff6a7ed45 in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator() (this=0x5555573d3cb0, p=0x55555c1bfb10) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff6a7e98a in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0> (this=0x5555573d3cc0, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff6a7e0ab in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator() (this=0x5555573d3cb0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff6a7e02c 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=0x5555573d3cb0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00007ffff6a7d88a in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >, void>::call_it (rep=0x5555573d3c80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff34a0c4d in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2f361e5 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#11 0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#12 0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 46 (Thread 0x7fffc5ca2640 (LWP 10351) "autoconnect"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef032d20 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#2  0x00007ffff70ba051 in ARDOUR::Session::auto_connect_thread_run (this=0x55555af43610) at ../libs/ardour/session.cc:7183
#3  0x00007ffff70b9b78 in ARDOUR::Session::auto_connect_thread (arg=0x55555af43610) at ../libs/ardour/session.cc:7114
#4  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#5  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 45 (Thread 0x7fffc6ca4640 (LWP 10350) "SessionSignals"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef032d20 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#2  0x00007ffff7134dc9 in ARDOUR::Session::emit_thread_run (this=0x55555af43610) at ../libs/ardour/session_process.cc:1123
#3  0x00007ffff7134d66 in ARDOUR::Session::emit_thread (arg=0x55555af43610) at ../libs/ardour/session_process.cc:1112
#4  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#5  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 44 (Thread 0x7fffc64a3640 (LWP 10294) "midiUI"):
#0  0x00007fffecc3db2f in poll () from /lib64/libc.so.6
#1  0x00007ffff2f06d66 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2f070f2 in g_main_loop_run () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff4140ac6 in BaseUI::main_thread (this=0x55555b9a50e0) at ../libs/pbd/base_ui.cc:98
#4  0x00007ffff4144be8 in sigc::bound_mem_functor0<void, BaseUI>::operator() (this=0x555559f43818) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff4144828 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x555559f43810) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff4144269 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x555559f437e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34a0c4d in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f361e5 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#10 0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 43 (Thread 0x7fff6f5f5640 (LWP 10293) "butler"):
#0  0x00007fffecc3db2f in poll () from /lib64/libc.so.6
#1  0x00007ffff4156978 in CrossThreadChannel::poll_for_request (this=0x555557548e98) at ../libs/pbd/crossthread.posix.cc:102
#2  0x00007ffff41569e1 in CrossThreadChannel::receive (this=0x555557548e98, msg=@0x7fff6f5f434f: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:123
#3  0x00007ffff6a8f078 in ARDOUR::Butler::thread_work (this=0x555557548e00) at ../libs/ardour/butler.cc:185
#4  0x00007ffff6a8edf9 in ARDOUR::Butler::_thread_work (arg=0x555557548e00) at ../libs/ardour/butler.cc:166
#5  0x00007ffff4179c70 in fake_thread_start (arg=0x555558c51060) at ../libs/pbd/pthread_utils.cc:113
#6  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#7  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 42 (Thread 0x7fffc42ca640 (LWP 10292) "RT-6-0x7fffc42c"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x55555847c730) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bae48e in ARDOUR::Graph::run_one (this=0x55555847c680) at ../libs/ardour/graph.cc:426
#4  0x00007ffff6bae946 in ARDOUR::Graph::helper_thread (this=0x55555847c680) at ../libs/ardour/graph.cc:470
#5  0x00007ffff6bb4ef3 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc42c9c58, p=0x55555847c680) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff6bb46a8 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc42c9c68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#7  0x00007ffff6bb3b05 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc42c9c58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#8  0x00007ffff6bb33a9 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 /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#9  0x0000555555aa3628 in boost::function0<void>::operator() (this=0x7fffc42c9c50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#10 0x00007fffd49e6e3f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555af4b400) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#12 0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 41 (Thread 0x7fffc434b640 (LWP 10291) "RT-5-0x7fffc434"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x55555847c730) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bae48e in ARDOUR::Graph::run_one (this=0x55555847c680) at ../libs/ardour/graph.cc:426
#4  0x00007ffff6bae946 in ARDOUR::Graph::helper_thread (this=0x55555847c680) at ../libs/ardour/graph.cc:470
#5  0x00007ffff6bb4ef3 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc434ac58, p=0x55555847c680) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff6bb46a8 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc434ac68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#7  0x00007ffff6bb3b05 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc434ac58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#8  0x00007ffff6bb33a9 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 /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#9  0x0000555555aa3628 in boost::function0<void>::operator() (this=0x7fffc434ac50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#10 0x00007fffd49e6e3f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555af4b260) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#12 0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 40 (Thread 0x7fffc43cc640 (LWP 10290) "RT-4-0x7fffc43c"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x55555847c730) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bae48e in ARDOUR::Graph::run_one (this=0x55555847c680) at ../libs/ardour/graph.cc:426
#4  0x00007ffff6bae946 in ARDOUR::Graph::helper_thread (this=0x55555847c680) at ../libs/ardour/graph.cc:470
#5  0x00007ffff6bb4ef3 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc43cbc58, p=0x55555847c680) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff6bb46a8 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc43cbc68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#7  0x00007ffff6bb3b05 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc43cbc58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#8  0x00007ffff6bb33a9 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 /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#9  0x0000555555aa3628 in boost::function0<void>::operator() (this=0x7fffc43cbc50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#10 0x00007fffd49e6e3f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555be1e620) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#12 0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 39 (Thread 0x7fffc444d640 (LWP 10289) "RT-3-0x7fffc444"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x55555847c730) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bae48e in ARDOUR::Graph::run_one (this=0x55555847c680) at ../libs/ardour/graph.cc:426
#4  0x00007ffff6bae946 in ARDOUR::Graph::helper_thread (this=0x55555847c680) at ../libs/ardour/graph.cc:470
#5  0x00007ffff6bb4ef3 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc444cc58, p=0x55555847c680) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff6bb46a8 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc444cc68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#7  0x00007ffff6bb3b05 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc444cc58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#8  0x00007ffff6bb33a9 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 /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#9  0x0000555555aa3628 in boost::function0<void>::operator() (this=0x7fffc444cc50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#10 0x00007fffd49e6e3f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555737da70) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#12 0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 38 (Thread 0x7fffc44ce640 (LWP 10288) "RT-2-0x7fffc44c"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x55555847c730) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bae48e in ARDOUR::Graph::run_one (this=0x55555847c680) at ../libs/ardour/graph.cc:426
#4  0x00007ffff6bae946 in ARDOUR::Graph::helper_thread (this=0x55555847c680) at ../libs/ardour/graph.cc:470
#5  0x00007ffff6bb4ef3 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc44cdc58, p=0x55555847c680) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff6bb46a8 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc44cdc68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#7  0x00007ffff6bb3b05 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc44cdc58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#8  0x00007ffff6bb33a9 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 /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#9  0x0000555555aa3628 in boost::function0<void>::operator() (this=0x7fffc44cdc50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#10 0x00007fffd49e6e3f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555755f480) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#12 0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 37 (Thread 0x7fffc454f640 (LWP 10287) "RT-1-0x7fffc454"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x55555847c758) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bad81c in ARDOUR::Graph::reached_terminal_node (this=0x55555847c680) at ../libs/ardour/graph.cc:301
#4  0x00007ffff6bb55cd in ARDOUR::GraphNode::finish (this=0x55555c1a1ab0, chain=0) at ../libs/ardour/graphnode.cc:74
#5  0x00007ffff6bb0d5c in ARDOUR::GraphNode::run (this=0x55555c1a1ab0, chain=0) at ../libs/ardour/ardour/graphnode.h:65
#6  0x00007ffff6bae5fc in ARDOUR::Graph::run_one (this=0x55555847c680) at ../libs/ardour/graph.cc:442
#7  0x00007ffff6bae946 in ARDOUR::Graph::helper_thread (this=0x55555847c680) at ../libs/ardour/graph.cc:470
#8  0x00007ffff6bb4ef3 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc454ec58, p=0x55555847c680) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#9  0x00007ffff6bb46a8 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc454ec68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#10 0x00007ffff6bb3b05 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc454ec58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#11 0x00007ffff6bb33a9 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 /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#12 0x0000555555aa3628 in boost::function0<void>::operator() (this=0x7fffc454ec50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#13 0x00007fffd49e6e3f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555558597670) at ../libs/backends/jack/jack_audiobackend.cc:953
#14 0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#15 0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 36 (Thread 0x7fffc45d0640 (LWP 10286) "RT-main-0x7fffc"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x55555847c730) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bae48e in ARDOUR::Graph::run_one (this=0x55555847c680) at ../libs/ardour/graph.cc:426
#4  0x00007ffff6baed28 in ARDOUR::Graph::main_thread (this=0x55555847c680) at ../libs/ardour/graph.cc:523
#5  0x00007ffff6bb4ef3 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc45cfc58, p=0x55555847c680) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff6bb46a8 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc45cfc68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#7  0x00007ffff6bb3b05 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc45cfc58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#8  0x00007ffff6bb33a9 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 /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#9  0x0000555555aa3628 in boost::function0<void>::operator() (this=0x7fffc45cfc50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#10 0x00007fffd49e6e3f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555558464080) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#12 0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 35 (Thread 0x7fffc45db900 (LWP 10285) "RTTaskList"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x7fffac001910) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff707bbf3 in ARDOUR::RTTaskList::run (this=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff707b9da in ARDOUR::RTTaskList::_thread_run (arg=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#6  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 34 (Thread 0x7fffc45e7900 (LWP 10284) "RTTaskList"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x7fffac001910) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff707bbf3 in ARDOUR::RTTaskList::run (this=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff707b9da in ARDOUR::RTTaskList::_thread_run (arg=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#6  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 33 (Thread 0x7fffc45f3900 (LWP 10283) "RTTaskList"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x7fffac001910) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff707bbf3 in ARDOUR::RTTaskList::run (this=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff707b9da in ARDOUR::RTTaskList::_thread_run (arg=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#6  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 32 (Thread 0x7fffc45ff900 (LWP 10282) "RTTaskList"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x7fffac001910) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff707bbf3 in ARDOUR::RTTaskList::run (this=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff707b9da in ARDOUR::RTTaskList::_thread_run (arg=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#6  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 31 (Thread 0x7fffc460b900 (LWP 10281) "RTTaskList"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x7fffac001910) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff707bbf3 in ARDOUR::RTTaskList::run (this=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff707b9da in ARDOUR::RTTaskList::_thread_run (arg=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#6  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 30 (Thread 0x7fffc4617900 (LWP 10280) "RTTaskList"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x7fffac001910) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff707bbf3 in ARDOUR::RTTaskList::run (this=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff707b9da in ARDOUR::RTTaskList::_thread_run (arg=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#6  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 29 (Thread 0x7fffc4623900 (LWP 10279) "RTTaskList"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef0355c8 in __new_sem_wait_slow64.constprop.0 () from /lib64/libpthread.so.0
#2  0x00007ffff6bb0cf2 in PBD::Semaphore::wait (this=0x7fffac001910) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff707bbf3 in ARDOUR::RTTaskList::run (this=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff707b9da in ARDOUR::RTTaskList::_thread_run (arg=0x7fffac0018e0) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#6  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x7fffc74a5640 (LWP 10009) "pool"):
#0  0x00007fffecc43219 in syscall () from /lib64/libc.so.6
#1  0x00007ffff2f57f61 in g_cond_wait_until () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2ed23fb in g_async_queue_timeout_pop () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff2f36a14 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#4  0x00007ffff2f361e5 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#5  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#6  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7fffc506c640 (LWP 10008) "audioengine"):
#0  0x00007fffecc43219 in syscall () from /lib64/libc.so.6
#1  0x00007fffd494ee94 in ?? () from /usr/lib64/libjack.so.0
#2  0x00007fffd4931b25 in ?? () from /usr/lib64/libjack.so.0
#3  0x00007fffd49305dd in ?? () from /usr/lib64/libjack.so.0
#4  0x00007fffd4a0a442 in WJACK_cycle_wait (client=0x55555799a800) at ../libs/backends/jack/weak_libjack.def:95
#5  0x00007fffd49e6ef1 in ARDOUR::JACKAudioBackend::process_thread (this=0x5555578e2e40) at ../libs/backends/jack/jack_audiobackend.cc:982
#6  0x00007fffd49e6e8e in ARDOUR::JACKAudioBackend::_process_thread (arg=0x5555578e2e40) at ../libs/backends/jack/jack_audiobackend.cc:961
#7  0x00007fffd4930a80 in ?? () from /usr/lib64/libjack.so.0
#8  0x00007fffd494d13c in ?? () from /usr/lib64/libjack.so.0
#9  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#10 0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7fffc754a640 (LWP 9958) "audioengine"):
#0  0x00007fffef03622c in read () from /lib64/libpthread.so.0
#1  0x00007fffd494e32e in ?? () from /usr/lib64/libjack.so.0
#2  0x00007fffd4951e0d in ?? () from /usr/lib64/libjack.so.0
#3  0x00007fffd4951c3f in ?? () from /usr/lib64/libjack.so.0
#4  0x00007fffd494d13c in ?? () from /usr/lib64/libjack.so.0
#5  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#6  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7fffc75cb640 (LWP 9957) "audioengine"):
#0  0x00007fffef0391e2 in __futex_abstimed_wait_common64 () from /lib64/libpthread.so.0
#1  0x00007fffef032d20 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#2  0x00007fffd494dbfe in ?? () from /usr/lib64/libjack.so.0
#3  0x00007fffd4942165 in ?? () from /usr/lib64/libjack.so.0
#4  0x00007fffd494d13c in ?? () from /usr/lib64/libjack.so.0
#5  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#6  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7fffc7dcc640 (LWP 9133) "gmain"):
#0  0x00007fffecc3db2f in poll () from /lib64/libc.so.6
#1  0x00007ffff2f06d66 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2f06e7c in g_main_context_iteration () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff2f06ec1 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#4  0x00007ffff2f361e5 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#5  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#6  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7fffd5c68640 (LWP 9125) "DeviceList"):
#0  0x00007fffecc43219 in syscall () from /lib64/libc.so.6
#1  0x00007ffff2f57e4c in g_cond_wait () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6a19f72 in ARDOUR::AudioEngine::do_devicelist_update (this=0x555557a24bf0) at ../libs/ardour/audioengine.cc:717
#3  0x00007ffff6a28017 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x555557156a50, p=0x555557a24bf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff6a279be in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x555557156a60, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff6a2702b in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x555557156a50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff6a266be 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=0x555557156a50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff6a2573a 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=0x555557156a20) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff34a0c4d in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2f361e5 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#11 0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7fffe5e20640 (LWP 9124) "EngineWatchdog"):
#0  0x00007fffecc43219 in syscall () from /lib64/libc.so.6
#1  0x00007ffff2f57e4c in g_cond_wait () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6a19d33 in ARDOUR::AudioEngine::do_reset_backend (this=0x555557a24bf0) at ../libs/ardour/audioengine.cc:681
#3  0x00007ffff6a28017 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x555557156aa0, p=0x555557a24bf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff6a279be in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x555557156ab0, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff6a2702b in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x555557156aa0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff6a266be 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=0x555557156aa0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff6a2573a 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=0x555557156a70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff34a0c4d in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2f361e5 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#11 0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fffe6f82640 (LWP 8994) "Analyzer"):
#0  0x00007fffecc43219 in syscall () from /lib64/libc.so.6
#1  0x00007ffff2f57e4c in g_cond_wait () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff69cdc0c in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:93
#3  0x00007ffff69cd9f8 in analyser_work () at ../libs/ardour/analyser.cc:58
#4  0x0000555556359719 in sigc::pointer_functor0<void>::operator() (this=0x5555571792d8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#5  0x000055555635684c in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x5555571792d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00005555563526d5 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x5555571792a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34a0c4d in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f361e5 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#10 0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fffe7783640 (LWP 8993) "PeakFileBuilder"):
#0  0x00007fffecc43219 in syscall () from /lib64/libc.so.6
#1  0x00007ffff2f57e4c in g_cond_wait () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff71c94c6 in peak_thread_work () at ../libs/ardour/source_factory.cc:73
#3  0x0000555556359719 in sigc::pointer_functor0<void>::operator() (this=0x555557179498) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x000055555635684c in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x555557179490) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x00005555563526d5 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x555557179460) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff34a0c4d in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglibmm-2.4.so.1
#7  0x00007ffff2f361e5 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#8  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#9  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fffe7f84640 (LWP 8992) "PeakFileBuilder"):
#0  0x00007fffecc43219 in syscall () from /lib64/libc.so.6
#1  0x00007ffff2f57e4c in g_cond_wait () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff71c94c6 in peak_thread_work () at ../libs/ardour/source_factory.cc:73
#3  0x0000555556359719 in sigc::pointer_functor0<void>::operator() (this=0x5555571794e8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x000055555635684c in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x5555571794e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x00005555563526d5 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x5555571794b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff34a0c4d in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglibmm-2.4.so.1
#7  0x00007ffff2f361e5 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#8  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#9  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fffe8785640 (LWP 8991) "LXVSTEventLoop"):
#0  0x00007fffecc11625 in clock_nanosleep () from /lib64/libc.so.6
#1  0x00007fffecc16443 in nanosleep () from /lib64/libc.so.6
#2  0x00007ffff2f37a38 in g_usleep () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#3  0x0000555556741304 in gui_event_loop (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:468
#4  0x00007fffef02ce3e in start_thread () from /lib64/libpthread.so.0
#5  0x00007fffecc4873f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fffe90f8900 (LWP 8826) "ArdourGUI"):
#0  0x00007fffecb88711 in raise () from /lib64/libc.so.6
#1  0x00007fffecb72536 in abort () from /lib64/libc.so.6
#2  0x00007fffecb7241f in ?? () from /lib64/libc.so.6
#3  0x00007fffecb81022 in __assert_fail () from /lib64/libc.so.6
#4  0x0000555555b9d3d3 in boost::shared_ptr<ARDOUR::Playlist>::operator-> (this=0x7fffffff84d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/smart_ptr/shared_ptr.hpp:734
#5  0x0000555555cd90ea in Editor::session_gui_extents (this=0x555557f7b380, use_extra=true) at ../gtk2_ardour/editor_canvas.cc:629
#6  0x0000555555c36973 in Editor::set_session (this=0x555557f7b380, t=0x55555af43610) at ../gtk2_ardour/editor.cc:1305
#7  0x0000555555b05eb4 in ARDOUR_UI::connect_dependents_to_session (this=0x555557765300, s=0x55555af43610) at ../gtk2_ardour/ardour_ui_dependents.cc:132
#8  0x0000555555b0d35e in ARDOUR_UI::set_session (this=0x555557765300, s=0x55555af43610) at ../gtk2_ardour/ardour_ui_dialogs.cc:223
#9  0x0000555555b482b7 in ARDOUR_UI::load_session_stage_two (this=0x555557765300, path="/depot/ardour_projects/voice_ambient", snap_name="voice_ambient", mix_template="") at ../gtk2_ardour/ardour_ui_session.cc:511
#10 0x0000555555b4792f in ARDOUR_UI::load_session (this=0x555557765300, path="/depot/ardour_projects/voice_ambient", snap_name="voice_ambient", mix_template="") at ../gtk2_ardour/ardour_ui_session.cc:358
#11 0x0000555555b57bd8 in ARDOUR_UI::load_session_from_startup_fsm (this=0x555557765300) at ../gtk2_ardour/ardour_ui_startup.cc:579
#12 0x0000555555b5757f in ARDOUR_UI::sfsm_response (this=0x555557765300, r=StartupFSM::LoadSession) at ../gtk2_ardour/ardour_ui_startup.cc:487
#13 0x0000555555b5acd4 in sigc::bound_mem_functor1<void, ARDOUR_UI, StartupFSM::Result>::operator() (this=0x5555579f9c98, _A_a1=@0x7fffffffa3ac: StartupFSM::LoadSession) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1856
#14 0x0000555555b5aaa3 in sigc::adaptor_functor<sigc::bound_mem_functor1<void, ARDOUR_UI, StartupFSM::Result> >::operator()<StartupFSM::Result const&> (this=0x5555579f9c90, _A_arg1=@0x7fffffffa3ac: StartupFSM::LoadSession) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:89
#15 0x0000555555b5a6b4 in sigc::internal::slot_call1<sigc::bound_mem_functor1<void, ARDOUR_UI, StartupFSM::Result>, void, StartupFSM::Result>::call_it (rep=0x5555579f9c60, a_1=@0x7fffffffa3ac: StartupFSM::LoadSession) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:137
#16 0x00005555565bfa76 in sigc::internal::signal_emit1<void, StartupFSM::Result, sigc::nil>::emit (impl=0x5555579f9c00, _A_a1=@0x7fffffffa3ac: StartupFSM::LoadSession) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:1006
#17 0x00005555565bf33d in sigc::signal1<void, StartupFSM::Result, sigc::nil>::emit (this=0x5555578167e0, _A_a1=@0x7fffffffa3ac: StartupFSM::LoadSession) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:2797
#18 0x00005555565bebc9 in sigc::signal1<void, StartupFSM::Result, sigc::nil>::operator() (this=0x5555578167e0, _A_a1=@0x7fffffffa3ac: StartupFSM::LoadSession) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:2805
#19 0x00005555565bab5c in StartupFSM::dialog_response_handler (this=0x5555578166a0, response=-5, dialog_id=StartupFSM::PluginDialog) at ../gtk2_ardour/startup_fsm.cc:319
#20 0x00005555565c174f in sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID>::operator() (this=0x555557fc0960, _A_a1=@0x7fffffffa4cc: -5, _A_a2=@0x555557fc0980: StartupFSM::PluginDialog) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1927
#21 0x00005555565c11df in sigc::adaptor_functor<sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID> >::operator()<int const&, StartupFSM::DialogID&> (this=0x555557fc0958, _A_arg1=@0x7fffffffa4cc: -5, _A_arg2=@0x555557fc0980: StartupFSM::PluginDialog) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:108
#22 0x00005555565c0bd6 in sigc::bind_functor<-1, sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID>, StartupFSM::DialogID, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::operator()<int const&> (this=0x555557fc0950, _A_arg1=@0x7fffffffa4cc: -5) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/bind.h:1135
#23 0x00005555565c0502 in sigc::internal::slot_call1<sigc::bind_functor<-1, sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID>, StartupFSM::DialogID, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, void, int>::call_it (rep=0x555557fc0920, a_1=@0x7fffffffa4cc: -5) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:137
#24 0x00007ffff065e5f5 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libgtkmm-2.4.so.1
#25 0x00007ffff3215945 in g_closure_invoke () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#26 0x00007ffff322701b in ?? () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#27 0x00007ffff3230c30 in g_signal_emit_valist () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#28 0x00007ffff3231082 in g_signal_emit () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#29 0x00007ffff245580c in gtk_dialog_response () from /opt/Ardour-6.7.25-dbg/lib/libgtk-x11-2.0.so.0
#30 0x00005555565bc113 in StartupFSM::engine_running (this=0x5555578166a0) at ../gtk2_ardour/startup_fsm.cc:549
#31 0x00005555565bbec0 in StartupFSM::start_audio_midi_setup (this=0x5555578166a0) at ../gtk2_ardour/startup_fsm.cc:523
#32 0x00005555565ba9a4 in StartupFSM::dialog_response_handler (this=0x5555578166a0, response=-3, dialog_id=StartupFSM::NewSessionDialog) at ../gtk2_ardour/startup_fsm.cc:256
#33 0x00005555565c174f in sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID>::operator() (this=0x5555573fc660, _A_a1=@0x7fffffffaefc: -3, _A_a2=@0x5555573fc680: StartupFSM::NewSessionDialog) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1927
#34 0x00005555565c11df in sigc::adaptor_functor<sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID> >::operator()<int const&, StartupFSM::DialogID&> (this=0x5555573fc658, _A_arg1=@0x7fffffffaefc: -3, _A_arg2=@0x5555573fc680: StartupFSM::NewSessionDialog) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:108
#35 0x00005555565c0bd6 in sigc::bind_functor<-1, sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID>, StartupFSM::DialogID, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::operator()<int const&> (this=0x5555573fc650, _A_arg1=@0x7fffffffaefc: -3) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/bind.h:1135
#36 0x00005555565c0502 in sigc::internal::slot_call1<sigc::bind_functor<-1, sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID>, StartupFSM::DialogID, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, void, int>::call_it (rep=0x5555573fc620, a_1=@0x7fffffffaefc: -3) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:137
#37 0x00007ffff065e5f5 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libgtkmm-2.4.so.1
#38 0x00007ffff3215945 in g_closure_invoke () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#39 0x00007ffff322701b in ?? () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#40 0x00007ffff3230c30 in g_signal_emit_valist () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#41 0x00007ffff3231082 in g_signal_emit () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#42 0x00007ffff245580c in gtk_dialog_response () from /opt/Ardour-6.7.25-dbg/lib/libgtk-x11-2.0.so.0
#43 0x000055555653b453 in SessionDialog::recent_row_activated (this=0x555557a0abf0) at ../gtk2_ardour/session_dialog.cc:1027
#44 0x0000555556540fec in sigc::bound_mem_functor2<void, SessionDialog, Gtk::TreePath const&, Gtk::TreeViewColumn*>::operator() (this=0x555557340dc8, _A_a1=..., _A_a2=@0x7fffffffb458: 0x555557337910) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1927
#45 0x000055555653f7d7 in sigc::adaptor_functor<sigc::bound_mem_functor2<void, SessionDialog, Gtk::TreePath const&, Gtk::TreeViewColumn*> >::operator()<Gtk::TreePath const&, Gtk::TreeViewColumn* const&> (this=0x555557340dc0, _A_arg1=..., _A_arg2=@0x7fffffffb458: 0x555557337910) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:108
#46 0x000055555653e566 in sigc::internal::slot_call2<sigc::bound_mem_functor2<void, SessionDialog, Gtk::TreePath const&, Gtk::TreeViewColumn*>, void, Gtk::TreePath const&, Gtk::TreeViewColumn*>::call_it (rep=0x555557340d90, a_1=..., a_2=@0x7fffffffb458: 0x555557337910) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:173
#47 0x00007ffff06d7b35 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libgtkmm-2.4.so.1
#48 0x00007ffff3215945 in g_closure_invoke () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#49 0x00007ffff322701b in ?? () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#50 0x00007ffff3230c30 in g_signal_emit_valist () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#51 0x00007ffff3231082 in g_signal_emit () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#52 0x00007ffff265d3c0 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libgtk-x11-2.0.so.0
#53 0x00007ffff24f9cac in ?? () from /opt/Ardour-6.7.25-dbg/lib/libgtk-x11-2.0.so.0
#54 0x00007ffff3215945 in g_closure_invoke () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#55 0x00007ffff32275a0 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#56 0x00007ffff323069b in g_signal_emit_valist () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#57 0x00007ffff3231082 in g_signal_emit () from /opt/Ardour-6.7.25-dbg/lib/libgobject-2.0.so.0
#58 0x00007ffff267e64c in ?? () from /opt/Ardour-6.7.25-dbg/lib/libgtk-x11-2.0.so.0
#59 0x00007ffff24f829d in gtk_propagate_event () from /opt/Ardour-6.7.25-dbg/lib/libgtk-x11-2.0.so.0
#60 0x00007ffff24f8723 in gtk_main_do_event () from /opt/Ardour-6.7.25-dbg/lib/libgtk-x11-2.0.so.0
#61 0x00007ffff2114b4c in ?? () from /opt/Ardour-6.7.25-dbg/lib/libgdk-x11-2.0.so.0
#62 0x00007ffff2f06b67 in g_main_context_dispatch () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#63 0x00007ffff2f06dd0 in ?? () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#64 0x00007ffff2f070f2 in g_main_loop_run () from /opt/Ardour-6.7.25-dbg/lib/libglib-2.0.so.0
#65 0x00007ffff24f73e7 in gtk_main () from /opt/Ardour-6.7.25-dbg/lib/libgtk-x11-2.0.so.0
#66 0x00007ffff4524114 in Gtkmm2ext::UI::run (this=0x555557765300, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:310
#67 0x00005555560894e3 in main (argc=1, argv=0x7fffffffc4b8) at ../gtk2_ardour/main.cc:410