Done LV2 discovery [New Thread 0xae667b70 (LWP 3188)] [New Thread 0xade66b70 (LWP 3189)] [New Thread 0xabdd2b70 (LWP 3190)] [New Thread 0xab39ec90 (LWP 3191)] [New Thread 0xab324b70 (LWP 3192)] [New Thread 0xaaaadc90 (LWP 3193)] ardour-3.0: ../libs/ardour/ardour/audio_buffer.h:35: virtual void ARDOUR::AudioBuffer::silence(ARDOUR::framecnt_t, ARDOUR::framecnt_t): Assertion `_capacity > 0' failed. Program received signal SIGABRT, Aborted. 0xb7fe2424 in __kernel_vsyscall () (gdb) thread apply all bt Thread 14 (Thread 0xaaaadc90 (LWP 3193)): #0 0xb7fe2424 in __kernel_vsyscall () #1 0xb592d876 in nanosleep () from /lib/i686/cmov/libpthread.so.0 #2 0xb58ad502 in g_usleep () from /lib/libglib-2.0.so.0 #3 0xb563d49d in Glib::usleep(unsigned long) () from #/usr/lib/libglibmm-2.4.so.1 #4 0xb6fef012 in ARDOUR::AudioEngine::meter_thread (this=0x9fd8240) at #../libs/ardour/audioengine.cc:693 #5 0xb700e811 in boost::_mfi::mf0::operator() #(this=0xb02be60, p=0x9fd8240) at #/usr/include/boost/bind/mem_fn_template.hpp:49 #6 0xb7009b0a in boost::_bi::list1 #>::operator(), #>boost::_bi::list0> ( this=0xb02be68, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253 #7 0xb700519a in boost::_bi::bind_t, #boost::_bi::list1 > >::operator() ( this=0xb02be60) at /usr/include/boost/bind/bind_template.hpp:20 #8 0xb700015d in sigc::adaptor_functor, #boost::_bi::list1 > > >::operator() #(this=0xb02be60) at #/usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 #9 0xb6ffbd8b in sigc::internal::slot_call0, #boost::_bi::list1 > >, #void>::call_it (rep=0xb02be48) at #/usr/include/sigc++-2.0/sigc++/functors/slot.h:103 #10 0xb56310c2 in ?? () from /usr/lib/libglibmm-2.4.so.1 #11 0xb58aaaff in ?? () from /lib/libglib-2.0.so.0 #12 0xb5925955 in start_thread () from /lib/i686/cmov/libpthread.so.0 #13 0xb4622e7e in clone () from /lib/i686/cmov/libc.so.6 Thread 13 (Thread 0xab324b70 (LWP 3192)): #0 0xb7fe2424 in __kernel_vsyscall () #1 0xb4615696 in poll () from /lib/i686/cmov/libc.so.6 #2 0xb5890f1b in g_poll () from /lib/libglib-2.0.so.0 #3 0xb5883adc in ?? () from /lib/libglib-2.0.so.0 #4 0xb5884247 in g_main_loop_run () from /lib/libglib-2.0.so.0 #5 0xb56366c5 in Glib::MainLoop::run() () from /usr/lib/libglibmm-2.4.so.1 #6 0xb7ec1f61 in BaseUI::main_thread (this=0xb00c5c0) at #../libs/pbd/base_ui.cc:76 #7 0xb7ec3296 in sigc::bound_mem_functor0::operator() #(this=0xb00f2d4) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787 #8 0xb7ec3106 in sigc::adaptor_functor >::operator() (this=0xb00f2d0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 #9 0xb7ec2e82 in sigc::internal::slot_call0, void>::call_it (rep=0xb00f2b8) at #/usr/include/sigc++-2.0/sigc++/functors/slot.h:103 #10 0xb56310c2 in ?? () from /usr/lib/libglibmm-2.4.so.1 #11 0xb58aaaff in ?? () from /lib/libglib-2.0.so.0 #12 0xb5925955 in start_thread () from /lib/i686/cmov/libpthread.so.0 #13 0xb4622e7e in clone () from /lib/i686/cmov/libc.so.6 Thread 12 (Thread 0xab39ec90 (LWP 3191)): #0 0xb7fe2424 in __kernel_vsyscall () #1 0xb4615696 in poll () from /lib/i686/cmov/libc.so.6 #2 0xb7066ea2 in ARDOUR::Butler::thread_work (this=0xaf17da8) at #../libs/ardour/butler.cc:159 #3 0xb7066e00 in ARDOUR::Butler::_thread_work (arg=0xaf17da8) at #../libs/ardour/butler.cc:140 #4 0xb7ef377a in fake_thread_start (arg=0xafffc20) at #../libs/pbd/pthread_utils.cc:81 #5 0xb5925955 in start_thread () from /lib/i686/cmov/libpthread.so.0 #6 0xb4622e7e in clone () from /lib/i686/cmov/libc.so.6 Thread 11 (Thread 0xabdd2b70 (LWP 3190)): #0 0xb7fe2424 in __kernel_vsyscall () #1 0xb592c385 in sem_wait@@GLIBC_2.1 () from /lib/i686/cmov/libpthread.so.0 #2 0xb713f9dd in PBD::ProcessSemaphore::wait (this=0xaf18930) at #../libs/pbd/pbd/semutils.h:41 #3 0xb713dbc4 in ARDOUR::Graph::run_one (this=0xaf188c8) at #../libs/ardour/graph.cc:389 #4 0xb713dfa9 in ARDOUR::Graph::helper_thread (this=0xaf188c8) at #../libs/ardour/graph.cc:439 #5 0xb7143a8d in boost::_mfi::mf0::operator() #(this=0xabdd2190, p=0xaf188c8) at #/usr/include/boost/bind/mem_fn_template.hpp:49 #6 0xb714353a in boost::_bi::list1 #>::operator(), boost::_bi::list0> #>(this=0xabdd2198, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253 #7 0xb71430fe in boost::_bi::bind_t, boost::_bi::list1 > #>::operator() (this=0xabdd2190) at /usr/include/boost/bind/bind_template.hpp:20 #8 0xb7142c4d in boost::detail::function::void_function_obj_invoker0, #boost::_bi::list1 > >, void>::invoke #(function_obj_ptr=...) at #/usr/include/boost/function/function_template.hpp:153 #9 0x08e52759 in boost::function0::operator() (this=0xabdd218c) at #/usr/include/boost/function/function_template.hpp:1013 #10 0xb6ff1d06 in ARDOUR::AudioEngine::_start_process_thread (arg=0xaf20ba8) #at ../libs/ardour/audioengine.cc:1483 #11 0xb5925955 in start_thread () from /lib/i686/cmov/libpthread.so.0 #12 0xb4622e7e in clone () from /lib/i686/cmov/libc.so.6 Thread 10 (Thread 0xade66b70 (LWP 3189)): #0 0xb7fe2424 in __kernel_vsyscall () #1 0xb592c385 in sem_wait@@GLIBC_2.1 () from /lib/i686/cmov/libpthread.so.0 #2 0xb713f9dd in PBD::ProcessSemaphore::wait (this=0xaf18940) at #../libs/pbd/pbd/semutils.h:41 #3 0xb713e024 in ARDOUR::Graph::main_thread (this=0xaf188c8) at #../libs/ardour/graph.cc:458 #4 0xb7143a8d in boost::_mfi::mf0::operator() #(this=0xade66190, p=0xaf188c8) at #/usr/include/boost/bind/mem_fn_template.hpp:49 #5 0xb714353a in boost::_bi::list1 #>::operator(), boost::_bi::list0> #>(this=0xade66198, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253 #6 0xb71430fe in boost::_bi::bind_t, boost::_bi::list1 > #>::operator() (this=0xade66190) at /usr/include/boost/bind/bind_template.hpp:20 #7 0xb7142c4d in boost::detail::function::void_function_obj_invoker0, #boost::_bi::list1 > >, void>::invoke #(function_obj_ptr=...) at #/usr/include/boost/function/function_template.hpp:153 #8 0x08e52759 in boost::function0::operator() (this=0xade6618c) at #/usr/include/boost/function/function_template.hpp:1013 #9 0xb6ff1d06 in ARDOUR::AudioEngine::_start_process_thread (arg=0xaf20b78) #at ../libs/ardour/audioengine.cc:1483 #10 0xb5925955 in start_thread () from /lib/i686/cmov/libpthread.so.0 #11 0xb4622e7e in clone () from /lib/i686/cmov/libc.so.6 Thread 9 (Thread 0xae667b70 (LWP 3188)): #0 0xb7fe2424 in __kernel_vsyscall () #1 0xb4615696 in poll () from /lib/i686/cmov/libc.so.6 #2 0xb5942167 in ?? () from /usr/lib/libjack.so.0 #3 0xb5942291 in jack_cycle_wait () from /usr/lib/libjack.so.0 #4 0xb6fee393 in ARDOUR::AudioEngine::process_thread (this=0x9fd8240) at #../libs/ardour/audioengine.cc:459 #5 0xb6fedfd3 in ARDOUR::AudioEngine::_process_thread (arg=0x9fd8240) at #../libs/ardour/audioengine.cc:375 #6 0xb5942539 in ?? () from /usr/lib/libjack.so.0 #7 0xb5925955 in start_thread () from /lib/i686/cmov/libpthread.so.0 #8 0xb4622e7e in clone () from /lib/i686/cmov/libc.so.6 Thread 8 (Thread 0xaee68b70 (LWP 3178)): #0 0xb7fe2424 in __kernel_vsyscall () #1 0xb5929f7f in pthread_cond_wait@@GLIBC_2.3.2 () from #/lib/i686/cmov/libpthread.so.0 #2 0xb5942f2f in ?? () from /usr/lib/libjack.so.0 #3 0xb5925955 in start_thread () from /lib/i686/cmov/libpthread.so.0 #4 0xb4622e7e in clone () from /lib/i686/cmov/libc.so.6 Thread 4 (Thread 0xb2a89b70 (LWP 3172)): #0 0xb7fe2424 in __kernel_vsyscall () #1 0xb5929f7f in pthread_cond_wait@@GLIBC_2.3.2 () from #/lib/i686/cmov/libpthread.so.0 #2 0xb56305b8 in Glib::Cond::wait(Glib::Mutex&) () from #/usr/lib/libglibmm-2.4.so.1 #3 0xb6f8ad9d in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:85 #4 0xb6f8ab26 in analyser_work () at ../libs/ardour/analyser.cc:49 #5 0x093adc5b in sigc::pointer_functor0::operator() (this=0x9d620b4) #at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77 #6 0x093ab5ea in sigc::adaptor_functor #>::operator() (this=0x9d620b0) at #>/usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 #7 0x093a8778 in sigc::internal::slot_call0, #void>::call_it (rep=0x9d62098) at #/usr/include/sigc++-2.0/sigc++/functors/slot.h:103 #8 0xb56310c2 in ?? () from /usr/lib/libglibmm-2.4.so.1 #9 0xb58aaaff in ?? () from /lib/libglib-2.0.so.0 #10 0xb5925955 in start_thread () from /lib/i686/cmov/libpthread.so.0 #11 0xb4622e7e in clone () from /lib/i686/cmov/libc.so.6 Thread 3 (Thread 0xb328ab70 (LWP 3171)): #0 0xb7fe2424 in __kernel_vsyscall () #1 0xb5929f7f in pthread_cond_wait@@GLIBC_2.3.2 () from #/lib/i686/cmov/libpthread.so.0 #2 0xb56305b8 in Glib::Cond::wait(Glib::Mutex&) () from #/usr/lib/libglibmm-2.4.so.1 #3 0xb73e0936 in peak_thread_work () at ../libs/ardour/source_factory.cc:69 #4 0x093adc5b in sigc::pointer_functor0::operator() (this=0x9d5a8a4) #at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77 #5 0x093ab5ea in sigc::adaptor_functor #>::operator() (this=0x9d5a8a0) at #>/usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 #6 0x093a8778 in sigc::internal::slot_call0, #void>::call_it (rep=0x9d5a888) at #/usr/include/sigc++-2.0/sigc++/functors/slot.h:103 #7 0xb56310c2 in ?? () from /usr/lib/libglibmm-2.4.so.1 #8 0xb58aaaff in ?? () from /lib/libglib-2.0.so.0 #9 0xb5925955 in start_thread () from /lib/i686/cmov/libpthread.so.0 #10 0xb4622e7e in clone () from /lib/i686/cmov/libc.so.6 Thread 2 (Thread 0xb3a8bb70 (LWP 3170)): #0 0xb7fe2424 in __kernel_vsyscall () #1 0xb5929f7f in pthread_cond_wait@@GLIBC_2.3.2 () from #/lib/i686/cmov/libpthread.so.0 #2 0xb56305b8 in Glib::Cond::wait(Glib::Mutex&) () from #/usr/lib/libglibmm-2.4.so.1 #3 0xb73e0936 in peak_thread_work () at ../libs/ardour/source_factory.cc:69 #4 0x093adc5b in sigc::pointer_functor0::operator() (this=0x9d5abf4) #at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77 #5 0x093ab5ea in sigc::adaptor_functor #>::operator() (this=0x9d5abf0) at #>/usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 #6 0x093a8778 in sigc::internal::slot_call0, #void>::call_it (rep=0x9d5abd8) at #/usr/include/sigc++-2.0/sigc++/functors/slot.h:103 #7 0xb56310c2 in ?? () from /usr/lib/libglibmm-2.4.so.1 #8 0xb58aaaff in ?? () from /lib/libglib-2.0.so.0 #9 0xb5925955 in start_thread () from /lib/i686/cmov/libpthread.so.0 #10 0xb4622e7e in clone () from /lib/i686/cmov/libc.so.6 Thread 1 (Thread 0xb3b338b0 (LWP 3167)): #0 0xb7fe2424 in __kernel_vsyscall () #1 0xb4581751 in raise () from /lib/i686/cmov/libc.so.6 #2 0xb4584b82 in abort () from /lib/i686/cmov/libc.so.6 #3 0xb457a8b8 in __assert_fail () from /lib/i686/cmov/libc.so.6 #4 0xb6f8cb2c in ARDOUR::AudioBuffer::silence (this=0xaf306e0, len=0, #offset=0) at ../libs/ardour/ardour/audio_buffer.h:35 #5 0xb6fd4a7e in ARDOUR::AudioPort::cycle_end (this=0xafea158, nframes=512) #at ../libs/ardour/audio_port.cc:62 #6 0xb6fef22e in ARDOUR::AudioEngine::set_session (this=0x9fd8240, #s=0xaf13218) at ../libs/ardour/audioengine.cc:734 #7 0xb72ee545 in ARDOUR::Session::when_engine_running (this=0xaf13218) at #../libs/ardour/session.cc:657 #8 0xb73792ab in ARDOUR::Session::second_stage_init (this=0xaf13218) at #../libs/ardour/session_state.cc:349 #9 0xb72e97b6 in ARDOUR::Session::Session (this=0xaf13218, eng=..., #fullpath=..., snapshot_name=..., bus_profile=0xbfffe9ac, mix_template=...) at ../libs/ardour/session.cc:189 #10 0x08e0f4b5 in ARDOUR_UI::build_session (this=0x9bf88b0, path=..., snap_name=..., bus_profile=...) at ../gtk2_ardour/ardour_ui.cc:2840 #11 0x08e0d93f in ARDOUR_UI::build_session_from_nsd (this=0x9bf88b0, #session_path=..., session_name=...) at ../gtk2_ardour/ardour_ui.cc:2459 #12 0x08e0e52e in ARDOUR_UI::get_session_parameters (this=0x9bf88b0, #quit_on_cancel=true, should_be_new=false, load_template=...) at #../gtk2_ardour/ardour_ui.cc:2657 #13 0x08e05df8 in ARDOUR_UI::startup (this=0x9bf88b0) at #../gtk2_ardour/ardour_ui.cc:708 #14 0x08e355f2 in sigc::bound_mem_functor0::operator() #(this=0x9ed15fc) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787 #15 0x08e2ea3c in sigc::adaptor_functor >::operator() (this=0x9ed15f8) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 #16 0x08e28a24 in sigc::internal::slot_call0, void>::call_it (rep=0x9ed15e0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103 #17 0x08e1464b in sigc::internal::signal_emit0::emit (impl=0x9ed15b0) at /usr/include/sigc++-2.0/sigc++/signal.h:776 #18 0x08e1c540 in sigc::signal0::emit (this=0x9bf8914) at #/usr/include/sigc++-2.0/sigc++/signal.h:2671 #19 0x08e183f1 in sigc::signal0::operator() #(this=0x9bf8914) at /usr/include/sigc++-2.0/sigc++/signal.h:2679 #20 0xb621949b in Gtkmm2ext::UI::run (this=0x9bf88b0, old_receiver=...) at #../libs/gtkmm2ext/gtk_ui.cc:266 #21 0x0922b5dd in main (argc=1, argv=0xbfffedc4) at #../gtk2_ardour/main.cc:625 (gdb)