[Thread 0x921d0b40 (LWP 1612) exited]
[Thread 0xa7b0bb40 (LWP 1600) exited]
actually writing state to /home/timbyr/ardour-test-sessions/test-5.3-bug7036/mysongname.tmp
renaming state to /home/timbyr/ardour-test-sessions/test-5.3-bug7036/mysongname.pending
saved state in 870.5 ms
actually writing state to /home/timbyr/ardour-test-sessions/test-5.3-bug7036/mysongname.tmp
renaming state to /home/timbyr/ardour-test-sessions/test-5.3-bug7036/mysongname.ardour
saved state in 769.2 ms
^Ccaught signal - shutting down.

Program received signal SIGINT, Interrupt.
0xb7567691 in boost::shared_ptr<ARDOUR::PlaylistSource>::~shared_ptr (this=0xbfffc360, __in_chrg=<optimized out>) at /usr/include/boost/smart_ptr/shared_ptr.hpp:328
328	template<class T> class shared_ptr
(gdb) t a a bt

Thread 39 (Thread 0xa830cb40 (LWP 1611)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in syscall () at ../sysdeps/unix/sysv/linux/i386/syscall.S:29
#2  0xffffffff in g_cond_wait () at /lib/libglib-2.0.so.0
#3  0xffffffff in Glib::Threads::Cond::wait(Glib::Threads::Mutex&) () at /lib/libglibmm-2.4.so.1
#4  0xffffffff in ArdourCanvas::WaveView::drawing_thread() () at ../libs/canvas/wave_view.cc:1565
#5  0x08923759 in sigc::pointer_functor0<void>::operator()() const (this=0xc5c59e4) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#6  0x089211d0 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0xc5c59e0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x0891e370 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0xc5c59c8) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0xffffffff in call_thread_entry_slot () at /lib/libglibmm-2.4.so.1
#9  0xffffffff in g_thread_proxy () at /lib/libglib-2.0.so.0
#10 0xffffffff in start_thread (arg=0xa830cb40) at pthread_create.c:310
#11 0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 38 (Thread 0xac2ffb40 (LWP 1610)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in nanosleep () at ../sysdeps/unix/syscall-template.S:81
#2  0xffffffff in g_usleep () at /lib/libglib-2.0.so.0
#3  0xffffffff in Glib::usleep(unsigned long) () at /lib/libglibmm-2.4.so.1
#4  0xffffffff in ARDOUR::AutomationWatch::thread() (this=0xc18a0e0) at ../libs/ardour/automation_watch.cc:153
#5  0xffffffff in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator()(ARDOUR::AutomationWatch*) const (this=0xb1d0f30, p=0xc18a0e0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#6  0xffffffff in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>&, boost::_bi::list0&, int) (this=0xb1d0f38, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#7  0xffffffff in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator()() (this=0xb1d0f30)
    at /usr/include/boost/bind/bind_template.hpp:20
#8  0xffffffff in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > > >::operator()() const (this=0xb1d0f30) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#9  0xffffffff in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >, void>::call_it(sigc::internal::slot_rep*) (rep=0xb1d0f18) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#10 0xffffffff in call_thread_entry_slot () at /lib/libglibmm-2.4.so.1
#11 0xffffffff in g_thread_proxy () at /lib/libglib-2.0.so.0
#12 0xffffffff in start_thread (arg=0xac2ffb40) at pthread_create.c:310
#13 0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 37 (Thread 0xab244b40 (LWP 1609)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:187
#2  0xffffffff in ARDOUR::Session::auto_connect_thread_run() (this=0xa8bff78) at ../libs/ardour/session.cc:7060
#3  0xffffffff in ARDOUR::Session::auto_connect_thread(void*) (arg=0xa8bff78) at ../libs/ardour/session.cc:7014
#4  0xffffffff in start_thread (arg=0xab244b40) at pthread_create.c:310
#5  0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 36 (Thread 0xaaa43b40 (LWP 1608)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:187
#2  0xffffffff in ARDOUR::Session::emit_thread_run() (this=0xa8bff78) at ../libs/ardour/session_process.cc:1316
#3  0xffffffff in ARDOUR::Session::emit_thread(void*) (arg=0xa8bff78) at ../libs/ardour/session_process.cc:1305
#4  0xffffffff in start_thread (arg=0xaaa43b40) at pthread_create.c:310
#5  0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 34 (Thread 0xa6220b40 (LWP 1606)):
#0  0xffffffff in __kernel_vsyscall ()
---Type <return> to continue, or q <return> to quit---
#1  0xffffffff in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0xffffffff in g_poll () at /lib/libglib-2.0.so.0
#3  0xffffffff in g_main_context_iterate.isra () at /lib/libglib-2.0.so.0
#4  0xffffffff in g_main_loop_run () at /lib/libglib-2.0.so.0
#5  0xffffffff in Glib::MainLoop::run() () at /lib/libglibmm-2.4.so.1
#6  0xffffffff in BaseUI::main_thread() (this=0xd72e1f0) at ../libs/pbd/base_ui.cc:86
#7  0xffffffff in sigc::bound_mem_functor0<void, BaseUI>::operator()() const (this=0xd72e594) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#8  0xffffffff in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator()() const (this=0xd72e590) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#9  0xffffffff in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it(sigc::internal::slot_rep*) (rep=0xd72e578) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#10 0xffffffff in call_thread_entry_slot () at /lib/libglibmm-2.4.so.1
#11 0xffffffff in g_thread_proxy () at /lib/libglib-2.0.so.0
#12 0xffffffff in start_thread (arg=0xa6220b40) at pthread_create.c:310
#13 0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 33 (Thread 0xa631fc40 (LWP 1605)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0xffffffff in CrossThreadChannel::poll_for_request() (this=0x94abff0) at ../libs/pbd/crossthread.posix.cc:75
#3  0xffffffff in CrossThreadChannel::receive(char&, bool) (this=0x94abff0, msg=@0xa631eeaf: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:96
#4  0xffffffff in ARDOUR::Butler::thread_work() (this=0x94abf88) at ../libs/ardour/butler.cc:175
#5  0xffffffff in ARDOUR::Butler::_thread_work(void*) (arg=0x94abf88) at ../libs/ardour/butler.cc:156
#6  0xffffffff in fake_thread_start(void*) (arg=0xd72e040) at ../libs/pbd/pthread_utils.cc:101
#7  0xffffffff in start_thread (arg=0xa631fc40) at pthread_create.c:310
#8  0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 32 (Thread 0xa6ad71c0 (LWP 1604)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in sem_wait@@GLIBC_2.1 () at ../sysdeps/unix/sysv/linux/i386/i486/sem_wait.S:79
#2  0xffffffff in PBD::Semaphore::wait() (this=0xc8a8898) at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests/libs/pbd/pbd/semutils.h:61
#3  0xffffffff in ARDOUR::Graph::restart_cycle() (this=0xc8a8828) at ../libs/ardour/graph.cc:261
#4  0xffffffff in ARDOUR::Graph::dec_ref() (this=0xc8a8828) at ../libs/ardour/graph.cc:248
#5  0xffffffff in ARDOUR::GraphNode::finish(int) (this=0xf786014, chain=1) at ../libs/ardour/graphnode.cc:71
#6  0xffffffff in ARDOUR::Graph::run_one() (this=0xc8a8828) at ../libs/ardour/graph.cc:401
#7  0xffffffff in ARDOUR::Graph::helper_thread() (this=0xc8a8828) at ../libs/ardour/graph.cc:418
#8  0xffffffff in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0xa6ad6790, p=0xc8a8828) at /usr/include/boost/bind/mem_fn_template.hpp:49
#9  0xffffffff in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0xa6ad6798, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#10 0xffffffff in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0xa6ad6790)
    at /usr/include/boost/bind/bind_template.hpp:20
#11 0xffffffff in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:153
#12 0x082c9853 in boost::function0<void>::operator()() const (this=0xa6ad678c) at /usr/include/boost/function/function_template.hpp:767
#13 0xffffffff in ARDOUR::AlsaAudioBackend::alsa_process_thread(void*) (arg=0xc8b0ae0) at ../libs/backends/alsa/alsa_audiobackend.cc:1109
#14 0xffffffff in start_thread (arg=0xa6ad71c0) at pthread_create.c:310
#15 0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 31 (Thread 0xa6af01c0 (LWP 1603)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in sem_wait@@GLIBC_2.1 () at ../sysdeps/unix/sysv/linux/i386/i486/sem_wait.S:79
#2  0xffffffff in PBD::Semaphore::wait() (this=0xc8a8888) at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests/libs/pbd/pbd/semutils.h:61
#3  0xffffffff in ARDOUR::Graph::run_one() (this=0xc8a8828) at ../libs/ardour/graph.cc:387
#4  0xffffffff in ARDOUR::Graph::helper_thread() (this=0xc8a8828) at ../libs/ardour/graph.cc:418
#5  0xffffffff in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0xa6aef790, p=0xc8a8828) at /usr/include/boost/bind/mem_fn_template.hpp:49
---Type <return> to continue, or q <return> to quit---
#6  0xffffffff in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0xa6aef798, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#7  0xffffffff in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0xa6aef790)
    at /usr/include/boost/bind/bind_template.hpp:20
#8  0xffffffff in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:153
#9  0x082c9853 in boost::function0<void>::operator()() const (this=0xa6aef78c) at /usr/include/boost/function/function_template.hpp:767
#10 0xffffffff in ARDOUR::AlsaAudioBackend::alsa_process_thread(void*) (arg=0xc8b0ae0) at ../libs/backends/alsa/alsa_audiobackend.cc:1109
#11 0xffffffff in start_thread (arg=0xa6af01c0) at pthread_create.c:310
#12 0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 30 (Thread 0xa6b091c0 (LWP 1602)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in sem_wait@@GLIBC_2.1 () at ../sysdeps/unix/sysv/linux/i386/i486/sem_wait.S:79
#2  0xffffffff in PBD::Semaphore::wait() (this=0xc8a8888) at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests/libs/pbd/pbd/semutils.h:61
#3  0xffffffff in ARDOUR::Graph::run_one() (this=0xc8a8828) at ../libs/ardour/graph.cc:387
#4  0xffffffff in ARDOUR::Graph::main_thread() (this=0xc8a8828) at ../libs/ardour/graph.cc:457
#5  0xffffffff in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0xa6b08790, p=0xc8a8828) at /usr/include/boost/bind/mem_fn_template.hpp:49
#6  0xffffffff in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0xa6b08798, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#7  0xffffffff in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0xa6b08790)
    at /usr/include/boost/bind/bind_template.hpp:20
#8  0xffffffff in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:153
#9  0x082c9853 in boost::function0<void>::operator()() const (this=0xa6b0878c) at /usr/include/boost/function/function_template.hpp:767
#10 0xffffffff in ARDOUR::AlsaAudioBackend::alsa_process_thread(void*) (arg=0xc8a6d40) at ../libs/backends/alsa/alsa_audiobackend.cc:1109
#11 0xffffffff in start_thread (arg=0xa6b091c0) at pthread_create.c:310
#12 0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 20 (Thread 0xac4221c0 (LWP 1592)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in __GI_ppoll (fds=0xc777368, nfds=2, timeout=0xac4215a8, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:56
#2  0xffffffff in Alsa_pcmi::pcm_wait() (this=0xc777308) at ../libs/backends/alsa/zita-alsa-pcmi.cc:178
#3  0xffffffff in ARDOUR::AlsaAudioBackend::main_process_thread() (this=0x95a2e28) at ../libs/backends/alsa/alsa_audiobackend.cc:1890
#4  0xffffffff in pthread_process(void*) (arg=0x95a2e28) at ../libs/backends/alsa/alsa_audiobackend.cc:794
#5  0xffffffff in start_thread (arg=0xac4221c0) at pthread_create.c:310
#6  0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 19 (Thread 0xabafeb40 (LWP 1591)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in select () at ../sysdeps/unix/syscall-template.S:81
#2  0xffffffff in PBD::SystemExec::output_interposer() (this=0xc771f98) at ../libs/pbd/system_exec.cc:926
#3  0xffffffff in interposer_thread(void*) (arg=0xc771f98) at ../libs/pbd/system_exec.cc:333
#4  0xffffffff in start_thread (arg=0xabafeb40) at pthread_create.c:310
#5  0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 9 (Thread 0xaccffb40 (LWP 1574)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0xffffffff in g_poll () at /lib/libglib-2.0.so.0
#3  0xffffffff in g_main_context_iterate.isra () at /lib/libglib-2.0.so.0
#4  0xffffffff in g_main_context_iteration () at /lib/libglib-2.0.so.0
#5  0xffffffff in glib_worker_main () at /lib/libglib-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#6  0xffffffff in g_thread_proxy () at /lib/libglib-2.0.so.0
#7  0xffffffff in start_thread (arg=0xaccffb40) at pthread_create.c:310
#8  0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 8 (Thread 0xad650b40 (LWP 1573)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0xffffffff in g_poll () at /lib/libglib-2.0.so.0
#3  0xffffffff in g_main_context_iterate.isra () at /lib/libglib-2.0.so.0
#4  0xffffffff in g_main_loop_run () at /lib/libglib-2.0.so.0
#5  0xffffffff in gdbus_shared_thread_func () at /lib/libgio-2.0.so.0
#6  0xffffffff in g_thread_proxy () at /lib/libglib-2.0.so.0
#7  0xffffffff in start_thread (arg=0xad650b40) at pthread_create.c:310
#8  0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 7 (Thread 0xae434b40 (LWP 1572)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in syscall () at ../sysdeps/unix/sysv/linux/i386/syscall.S:29
#2  0xffffffff in g_cond_wait () at /lib/libglib-2.0.so.0
#3  0xffffffff in Glib::Threads::Cond::wait(Glib::Threads::Mutex&) () at /lib/libglibmm-2.4.so.1
#4  0xffffffff in ARDOUR::AudioEngine::do_devicelist_update() (this=0x93f0598) at ../libs/ardour/audioengine.cc:560
#5  0xffffffff in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator()(ARDOUR::AudioEngine*) const (this=0x936dc90, p=0x93f0598) at /usr/include/boost/bind/mem_fn_template.hpp:49
#6  0xffffffff in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::AudioEngine>&, boost::_bi::list0&, int) (this=0x936dc98, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#7  0xffffffff in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator()() (this=0x936dc90)
    at /usr/include/boost/bind/bind_template.hpp:20
#8  0xffffffff in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator()() const (this=0x936dc90)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#9  0xffffffff in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::call_it(sigc::internal::slot_rep*) (rep=0x936dc78) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#10 0xffffffff in call_thread_entry_slot () at /lib/libglibmm-2.4.so.1
#11 0xffffffff in g_thread_proxy () at /lib/libglib-2.0.so.0
#12 0xffffffff in start_thread (arg=0xae434b40) at pthread_create.c:310
#13 0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 6 (Thread 0xaec35b40 (LWP 1571)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in syscall () at ../sysdeps/unix/sysv/linux/i386/syscall.S:29
#2  0xffffffff in g_cond_wait () at /lib/libglib-2.0.so.0
#3  0xffffffff in Glib::Threads::Cond::wait(Glib::Threads::Mutex&) () at /lib/libglibmm-2.4.so.1
#4  0xffffffff in ARDOUR::AudioEngine::do_reset_backend() (this=0x93f0598) at ../libs/ardour/audioengine.cc:525
#5  0xffffffff in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator()(ARDOUR::AudioEngine*) const (this=0x93f0528, p=0x93f0598) at /usr/include/boost/bind/mem_fn_template.hpp:49
#6  0xffffffff in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::AudioEngine>&, boost::_bi::list0&, int) (this=0x93f0530, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#7  0xffffffff in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator()() (this=0x93f0528)
    at /usr/include/boost/bind/bind_template.hpp:20
#8  0xffffffff in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator()() const (this=0x93f0528)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#9  0xffffffff in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::call_it(sigc::internal::slot_rep*) (rep=0x93f0510) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#10 0xffffffff in call_thread_entry_slot () at /lib/libglibmm-2.4.so.1
#11 0xffffffff in g_thread_proxy () at /lib/libglib-2.0.so.0
#12 0xffffffff in start_thread (arg=0xaec35b40) at pthread_create.c:310
---Type <return> to continue, or q <return> to quit---
#13 0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 5 (Thread 0xafdfeb40 (LWP 1570)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in syscall () at ../sysdeps/unix/sysv/linux/i386/syscall.S:29
#2  0xffffffff in g_cond_wait () at /lib/libglib-2.0.so.0
#3  0xffffffff in Glib::Threads::Cond::wait(Glib::Threads::Mutex&) () at /lib/libglibmm-2.4.so.1
#4  0xffffffff in ARDOUR::Analyser::work() () at ../libs/ardour/analyser.cc:87
#5  0xffffffff in analyser_work() () at ../libs/ardour/analyser.cc:52
#6  0x08923759 in sigc::pointer_functor0<void>::operator()() const (this=0x91e647c) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x089211d0 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x91e6478) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x0891e370 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x91e6460) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0xffffffff in call_thread_entry_slot () at /lib/libglibmm-2.4.so.1
#10 0xffffffff in g_thread_proxy () at /lib/libglib-2.0.so.0
#11 0xffffffff in start_thread (arg=0xafdfeb40) at pthread_create.c:310
#12 0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 4 (Thread 0xb05ffb40 (LWP 1569)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in syscall () at ../sysdeps/unix/sysv/linux/i386/syscall.S:29
#2  0xffffffff in g_cond_wait () at /lib/libglib-2.0.so.0
#3  0xffffffff in Glib::Threads::Cond::wait(Glib::Threads::Mutex&) () at /lib/libglibmm-2.4.so.1
#4  0xffffffff in peak_thread_work() () at ../libs/ardour/source_factory.cc:71
#5  0x08923759 in sigc::pointer_functor0<void>::operator()() const (this=0x91eef34) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#6  0x089211d0 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x91eef30) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x0891e370 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x91eef18) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0xffffffff in call_thread_entry_slot () at /lib/libglibmm-2.4.so.1
#9  0xffffffff in g_thread_proxy () at /lib/libglib-2.0.so.0
#10 0xffffffff in start_thread (arg=0xb05ffb40) at pthread_create.c:310
#11 0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 3 (Thread 0xb0f49b40 (LWP 1568)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in syscall () at ../sysdeps/unix/sysv/linux/i386/syscall.S:29
#2  0xffffffff in g_cond_wait () at /lib/libglib-2.0.so.0
#3  0xffffffff in Glib::Threads::Cond::wait(Glib::Threads::Mutex&) () at /lib/libglibmm-2.4.so.1
#4  0xffffffff in peak_thread_work() () at ../libs/ardour/source_factory.cc:71
#5  0x08923759 in sigc::pointer_functor0<void>::operator()() const (this=0x92a14ec) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#6  0x089211d0 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x92a14e8) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x0891e370 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x92a14d0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0xffffffff in call_thread_entry_slot () at /lib/libglibmm-2.4.so.1
#9  0xffffffff in g_thread_proxy () at /lib/libglib-2.0.so.0
#10 0xffffffff in start_thread (arg=0xb0f49b40) at pthread_create.c:310
#11 0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 2 (Thread 0xb174ab40 (LWP 1567)):
#0  0xffffffff in __kernel_vsyscall ()
#1  0xffffffff in nanosleep () at ../sysdeps/unix/syscall-template.S:81
#2  0xffffffff in g_usleep () at /lib/libglib-2.0.so.0
#3  0xffffffff in Glib::usleep(unsigned long) () at /lib/libglibmm-2.4.so.1
#4  0x08bd10c6 in gui_event_loop(void*) (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:475
#5  0xffffffff in start_thread (arg=0xb174ab40) at pthread_create.c:310
#6  0xffffffff in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122
---Type <return> to continue, or q <return> to quit---

Thread 1 (Thread 0xb19a9940 (LWP 1566)):
#0  0xffffffff in boost::shared_ptr<ARDOUR::PlaylistSource>::~shared_ptr() (this=0xbfffc360, __in_chrg=<optimized out>) at /usr/include/boost/smart_ptr/shared_ptr.hpp:328
#1  0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe5bb390, source=..., shallow=false) at ../libs/ardour/region.cc:1607
#2  0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe5b8550, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#3  0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe5c9468, source=..., shallow=false) at ../libs/ardour/region.cc:1606
#4  0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe5c8f50, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#5  0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe5e97e0, source=..., shallow=false) at ../libs/ardour/region.cc:1590
#6  0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe5e92c8, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#7  0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe5f72c8, source=..., shallow=false) at ../libs/ardour/region.cc:1590
#8  0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe5f6d20, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#9  0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe63d790, source=..., shallow=false) at ../libs/ardour/region.cc:1590
#10 0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe63d270, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#11 0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe64e238, source=..., shallow=false) at ../libs/ardour/region.cc:1590
#12 0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe64dc78, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#13 0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe65b2b0, source=..., shallow=false) at ../libs/ardour/region.cc:1606
#14 0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe6584e8, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#15 0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe665cb8, source=..., shallow=false) at ../libs/ardour/region.cc:1606
#16 0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe662ef0, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#17 0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe6a3790, source=..., shallow=false) at ../libs/ardour/region.cc:1606
#18 0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe69ccc8, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#19 0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe6b1cd0, source=..., shallow=false) at ../libs/ardour/region.cc:1606
#20 0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe6b17a0, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#21 0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe6c3718, source=..., shallow=false) at ../libs/ardour/region.cc:1590
#22 0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe6c3200, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#23 0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe6d1240, source=..., shallow=false) at ../libs/ardour/region.cc:1606
#24 0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe6d0b18, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#25 0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe6e2c80, source=..., shallow=false) at ../libs/ardour/region.cc:1606
#26 0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe6e2768, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#27 0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe70dfd8, source=..., shallow=false) at ../libs/ardour/region.cc:1606
#28 0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe70dac0, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#29 0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe7219d0, source=..., shallow=false) at ../libs/ardour/region.cc:1590
#30 0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe7214b8, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#31 0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe731498, source=..., shallow=false) at ../libs/ardour/region.cc:1590
#32 0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe730f68, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#33 0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe742eb0, source=..., shallow=false) at ../libs/ardour/region.cc:1606
#34 0xffffffff in ARDOUR::Playlist::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe742998, src=..., shallow=false) at ../libs/ardour/playlist.cc:2685
#35 0xffffffff in ARDOUR::Region::uses_source(boost::shared_ptr<ARDOUR::Source const>, bool) const (this=0xe74c1e0, source=..., shallow=false) at ../libs/ardour/region.cc:1590
#36 0xffffffff in ARDOUR::RegionFactory::get_regions_using_source(boost::shared_ptr<ARDOUR::Source>, std::set<boost::shared_ptr<ARDOUR::Region>, std::less<boost::shared_ptr<ARDOUR::Region> >, std::allocator<boost::shared_ptr<ARDOUR::Region> > >&) (s=..., r=std::set with 0 elements) at ../libs/ardour/region_factory.cc:640
#37 0xffffffff in ARDOUR::Session::destroy_sources(std::list<boost::shared_ptr<ARDOUR::Source>, std::allocator<boost::shared_ptr<ARDOUR::Source> > >) (this=0xa8bff78, srcs=std::list = {...})
    at ../libs/ardour/session.cc:4471
#38 0xffffffff in ARDOUR::Session::remove_last_capture() (this=0xa8bff78) at ../libs/ardour/session.cc:4528
#39 0x084ff98e in Editor::remove_last_capture() (this=0xd41a470) at ../gtk2_ardour/editor_ops.cc:5027
#40 0x0843931a in sigc::bound_mem_functor0<void, Editor>::operator()() const (this=0xc90e2a4) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#41 0x08433650 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, Editor> >::operator()() const (this=0xc90e2a0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#42 0x0842d0f6 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, Editor>, void>::call_it(sigc::internal::slot_rep*) (rep=0xc90e288) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#43 0xffffffff in Glib::SignalProxyNormal::slot0_void_callback(_GObject*, void*) () at /lib/libglibmm-2.4.so.1
#44 0xffffffff in g_cclosure_marshal_VOID__VOID () at /lib/libgobject-2.0.so.0
#45 0xffffffff in g_closure_invoke () at /lib/libgobject-2.0.so.0
#46 0xffffffff in signal_emit_unlocked_R () at /lib/libgobject-2.0.so.0
#47 0xffffffff in g_signal_emit_valist () at /lib/libgobject-2.0.so.0
#48 0xffffffff in g_signal_emit () at /lib/libgobject-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#49 0xffffffff in _gtk_action_emit_activate () at /lib/libgtk-x11-2.0.so.0
#50 0xffffffff in gtk_action_activate () at /lib/libgtk-x11-2.0.so.0
#51 0xffffffff in g_cclosure_marshal_VOID__VOID () at /lib/libgobject-2.0.so.0
#52 0xffffffff in g_type_class_meta_marshal () at /lib/libgobject-2.0.so.0
#53 0xffffffff in g_closure_invoke () at /lib/libgobject-2.0.so.0
#54 0xffffffff in signal_emit_unlocked_R () at /lib/libgobject-2.0.so.0
#55 0xffffffff in g_signal_emit_valist () at /lib/libgobject-2.0.so.0
#56 0xffffffff in g_signal_emit () at /lib/libgobject-2.0.so.0
#57 0xffffffff in gtk_widget_activate () at /lib/libgtk-x11-2.0.so.0
#58 0xffffffff in gtk_menu_shell_activate_item () at /lib/libgtk-x11-2.0.so.0
#59 0xffffffff in gtk_menu_shell_button_release () at /lib/libgtk-x11-2.0.so.0
#60 0xffffffff in gtk_menu_button_release () at /lib/libgtk-x11-2.0.so.0
#61 0xffffffff in _gtk_marshal_BOOLEAN__BOXED () at /lib/libgtk-x11-2.0.so.0
#62 0xffffffff in g_type_class_meta_marshal () at /lib/libgobject-2.0.so.0
#63 0xffffffff in g_closure_invoke () at /lib/libgobject-2.0.so.0
#64 0xffffffff in signal_emit_unlocked_R () at /lib/libgobject-2.0.so.0
#65 0xffffffff in g_signal_emit_valist () at /lib/libgobject-2.0.so.0
#66 0xffffffff in g_signal_emit () at /lib/libgobject-2.0.so.0
#67 0xffffffff in gtk_widget_event_internal () at /lib/libgtk-x11-2.0.so.0
#68 0xffffffff in gtk_propagate_event () at /lib/libgtk-x11-2.0.so.0
#69 0xffffffff in gtk_main_do_event () at /lib/libgtk-x11-2.0.so.0
#70 0xffffffff in gdk_event_dispatch () at /lib/libgdk-x11-2.0.so.0
#71 0xffffffff in g_main_context_dispatch () at /lib/libglib-2.0.so.0
#72 0xffffffff in g_main_context_iterate.isra () at /lib/libglib-2.0.so.0
#73 0xffffffff in g_main_loop_run () at /lib/libglib-2.0.so.0
#74 0xffffffff in gtk_main () at /lib/libgtk-x11-2.0.so.0
#75 0xffffffff in Gtk::Main::run() () at /lib/libgtkmm-2.4.so.1
#76 0xffffffff in Gtkmm2ext::UI::run(Receiver&) (this=0x944fbd8, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:286
#77 0x08708848 in main(int, char**) (argc=1, argv=0xbfffe2c4) at ../gtk2_ardour/main.cc:408
(gdb)