(gdb) run Starting program: /usr/local/src/ardour3/build/gtk2_ardour/ardour-3.0 [Thread debugging using libthread_db enabled] Ardour3.0alpha10 (built using ['10469'] and GCC version 4.6.1) Copyright (C) 1999-2011 Paul Davis Some portions Copyright (C) Steve Harris, Ari Johnson, Brett Viren, Joel Baker Ardour comes with ABSOLUTELY NO WARRANTY not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. This is free software, and you are welcome to redistribute it under certain conditions; see the source for copying conditions. Cannot xinstall SIGPIPE error handler ardour: [INFO]: Loading default ui configuration file gtk2_ardour/../gtk2_ardour/ardour3_ui_default.conf Loading ui configuration file gtk2_ardour/../build/gtk2_ardour/ardour3_ui_dark.rc ardour: [INFO]: Ardour will be limited to 4096 open files [New Thread 0x7fffe46f8700 (LWP 7633)] ardour: [INFO]: Loading system configuration file /usr/local/etc/ardour3/ardour_system.rc Loading user configuration file /home/acolomb/.config/ardour3/ardour.rc Using SSE optimized routines [New Thread 0x7fffe3ef7700 (LWP 7634)] [New Thread 0x7fffe36f6700 (LWP 7635)] [New Thread 0x7fffe2ef5700 (LWP 7636)] ardour: [INFO]: looking for panners in gtk2_ardour/../build/libs/panners/2in2out:gtk2_ardour/../build/libs/panners/1in2out:gtk2_ardour/../build/libs/panners/vbap ardour: [INFO]: Panner discovered: "Equal Power Stereo" ardour: [INFO]: Panner discovered: "Mono to Stereo Panner" ardour: [INFO]: Panner discovered: "VBAP 2D panner" [New Thread 0x7fffe0eaf700 (LWP 7637)] [New Thread 0x7fffd65c8700 (LWP 7638)] [New Thread 0x7fffd5dc7700 (LWP 7639)] [New Thread 0x7fffd55c6700 (LWP 7640)] [New Thread 0x7fffe06ae700 (LWP 7641)] [New Thread 0x7fffe062d700 (LWP 7642)] [Thread 0x7fffe062d700 (LWP 7642) exited] [Thread 0x7fffe06ae700 (LWP 7641) exited] [Thread 0x7fffd55c6700 (LWP 7640) exited] [Thread 0x7fffd5dc7700 (LWP 7639) exited] [Thread 0x7fffd65c8700 (LWP 7638) exited] [Thread 0x7fffe0eaf700 (LWP 7637) exited] [New Thread 0x7fffe0eaf700 (LWP 7649)] Checking into 32 Tracks.template using .template Checking into 2 Track.template using .template Checking into 8 Tracks.template using .template Checking into 4 Tracks.template using .template Checking into 16 Tracks.template using .template Found 5 along /usr/local/share/ardour3/templates:/home/acolomb/.config/ardour3/templates Grab new name focus [New Thread 0x7fffd65c8700 (LWP 7650)] [New Thread 0x7fffd5dc7700 (LWP 7651)] lost focus [Thread 0x7fffd5dc7700 (LWP 7651) exited] [Thread 0x7fffd65c8700 (LWP 7650) exited] [New Thread 0x7fffe06ae700 (LWP 7653)] [New Thread 0x7fffe062d700 (LWP 7654)] [Thread 0x7fffe0eaf700 (LWP 7649) exited] LV2: Discovering 186 plugins Done LV2 discovery [New Thread 0x7fffe0087700 (LWP 7658)] [New Thread 0x7fffb93ca700 (LWP 7659)] [New Thread 0x7fffb9349700 (LWP 7660)] [New Thread 0x7fffb92c8700 (LWP 7661)] [New Thread 0x7fffb9246820 (LWP 7662)] [New Thread 0x7fffe0eaf700 (LWP 7663)] [New Thread 0x7fffb91cb820 (LWP 7664)] [New Thread 0x7fffd65c8700 (LWP 7665)] [New Thread 0x7fffd5dc7700 (LWP 7666)] lost focus [Thread 0x7fffd65c8700 (LWP 7665) exited] [New Thread 0x7fffd65c8700 (LWP 7668)] [Thread 0x7fffd65c8700 (LWP 7668) exited] Checking into 4303-1.template using .template Checking into 4303-1.template using .template [Thread 0x7fffd5dc7700 (LWP 7666) exited] ardour-3.0: ../libs/ardour/bundle.cc:544: uint32_t ARDOUR::Bundle::type_channel_to_overall(ARDOUR::DataType, uint32_t) const: Assertion `i != _channel.end ()' failed. Program received signal SIGABRT, Aborted. 0x00007fffebe8e405 in *__GI_raise (sig=) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 64 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory. in ../nptl/sysdeps/unix/sysv/linux/raise.c (gdb) thread apply all bt Thread 23 (Thread 0x7fffb91cb820 (LWP 7664)): #0 0x00007fffec1ee89d in nanosleep () at ../sysdeps/unix/syscall-template.S:82 #1 0x00007ffff2bf0da2 in g_usleep () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff6ddbf76 in ARDOUR::AudioEngine::meter_thread (this=0x2ba3bb0) at ../libs/ardour/audioengine.cc:692 #3 0x00007ffff6dfb610 in boost::_mfi::mf0::operator() (this=0x6dd1710, p=0x2ba3bb0) at /usr/include/boost/bind/mem_fn_template.hpp:49 #4 0x00007ffff6df6c60 in boost::_bi::list1 >::operator(), boost::_bi::list0> (this=0x6dd1720, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253 #5 0x00007ffff6df27ef in boost::_bi::bind_t, boost::_bi::list1 > >::operator() (this=0x6dd1710) at /usr/include/boost/bind/bind_template.hpp:20 #6 0x00007ffff6dedbcc in sigc::adaptor_functor, boost::_bi::list1 > > >::operator() (this=0x6dd1710) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 #7 0x00007ffff6de9526 in sigc::internal::slot_call0, boost::_bi::list1 > >, void>::call_it (rep=0x6dd16e0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103 #8 0x00007ffff371c94d in operator() (this=0x6dd1510) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:440 #9 (anonymous namespace)::call_thread_entry_slot (data=0x6dd1510) at thread.cc:44 #10 0x00007ffff2bed986 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #11 0x00007fffec1e6b40 in start_thread (arg=) at pthread_create.c:304 #12 0x00007fffebf3136d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #13 0x0000000000000000 in ?? () Thread 22 (Thread 0x7fffe0eaf700 (LWP 7663)): #0 0x00007fffebf26723 in *__GI___poll (fds=, nfds=, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87 #1 0x00007ffff2bc86b8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff2bc8ee2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff4cc413f in BaseUI::main_thread (this=0x6b2b790) at ../libs/pbd/base_ui.cc:77 #4 0x00007ffff4cc54e9 in sigc::bound_mem_functor0::operator() (this=0x6b2e268) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787 #5 0x00007ffff4cc534e in sigc::adaptor_functor >::operator() (this=0x6b2e260) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 #6 0x00007ffff4cc50bf in sigc::internal::slot_call0, void>::call_it (rep=0x6b2e230) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103 #7 0x00007ffff371c94d in operator() (this=0x6b1eec0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:440 #8 (anonymous namespace)::call_thread_entry_slot (data=0x6b1eec0) at thread.cc:44 #9 0x00007ffff2bed986 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #10 0x00007fffec1e6b40 in start_thread (arg=) at pthread_create.c:304 #11 0x00007fffebf3136d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #12 0x0000000000000000 in ?? () Thread 21 (Thread 0x7fffb9246820 (LWP 7662)): #0 0x00007fffebf26723 in *__GI___poll (fds=, nfds=, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87 #1 0x00007ffff6e5921f in ARDOUR::Butler::thread_work (this=0x408c770) at ../libs/ardour/butler.cc:153 #2 0x00007ffff6e59179 in ARDOUR::Butler::_thread_work (arg=0x408c770) at ../libs/ardour/butler.cc:137 #3 0x00007ffff4cf9f0c in fake_thread_start (arg=0x6b1eec0) at ../libs/pbd/pthread_utils.cc:81 #4 0x00007fffec1e6b40 in start_thread (arg=) at pthread_create.c:304 #5 0x00007fffebf3136d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #6 0x0000000000000000 in ?? () Thread 20 (Thread 0x7fffb92c8700 (LWP 7661)): #0 sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:86 #1 0x00007ffff6f390ec in PBD::ProcessSemaphore::wait (this=0x408de08) at /usr/local/src/ardour3/libs/pbd/pbd/semutils.h:41 #2 0x00007ffff6f367df in ARDOUR::Graph::restart_cycle (this=0x408dd20) at ../libs/ardour/graph.cc:263 #3 0x00007ffff6f367a9 in ARDOUR::Graph::dec_ref (this=0x408dd20) at ../libs/ardour/graph.cc:250 #4 0x00007ffff6f3d836 in ARDOUR::GraphNode::finish (this=0x6afe1b0, chain=0) at ../libs/ardour/graphnode.cc:71 #5 0x00007ffff6f37735 in ARDOUR::Graph::run_one (this=0x408dd20) at ../libs/ardour/graph.cc:447 #6 0x00007ffff6f37996 in ARDOUR::Graph::helper_thread (this=0x408dd20) at ../libs/ardour/graph.cc:483 #7 0x00007ffff6f3d196 in boost::_mfi::mf0::operator() (this=0x7fffb92c7c08, p=0x408dd20) at /usr/include/boost/bind/mem_fn_template.hpp:49 #8 0x00007ffff6f3cba2 in boost::_bi::list1 >::operator(), boost::_bi::list0> (this=0x7fffb92c7c18, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253 #9 0x00007ffff6f3c78d in boost::_bi::bind_t, boost::_bi::list1 > >::operator() (this=0x7fffb92c7c08) at /usr/include/boost/bind/bind_template.hpp:20 #10 0x00007ffff6f3c2fd 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 #11 0x00000000013a540c in boost::function0::operator() (this=0x7fffb92c7c00) at /usr/include/boost/function/function_template.hpp:1013 #12 0x00007ffff6dded01 in ARDOUR::AudioEngine::_start_process_thread (arg=0x409e1b0) at ../libs/ardour/audioengine.cc:1476 #13 0x00007fffec1e6b40 in start_thread (arg=) at pthread_create.c:304 #14 0x00007fffebf3136d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #15 0x0000000000000000 in ?? () Thread 19 (Thread 0x7fffb9349700 (LWP 7660)): #0 sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:86 ---Type to continue, or q to quit--- #1 0x00007ffff6f390ec in PBD::ProcessSemaphore::wait (this=0x408dde8) at /usr/local/src/ardour3/libs/pbd/pbd/semutils.h:41 #2 0x00007ffff6f375ca in ARDOUR::Graph::run_one (this=0x408dd20) at ../libs/ardour/graph.cc:433 #3 0x00007ffff6f37996 in ARDOUR::Graph::helper_thread (this=0x408dd20) at ../libs/ardour/graph.cc:483 #4 0x00007ffff6f3d196 in boost::_mfi::mf0::operator() (this=0x7fffb9348c08, p=0x408dd20) at /usr/include/boost/bind/mem_fn_template.hpp:49 #5 0x00007ffff6f3cba2 in boost::_bi::list1 >::operator(), boost::_bi::list0> (this=0x7fffb9348c18, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253 #6 0x00007ffff6f3c78d in boost::_bi::bind_t, boost::_bi::list1 > >::operator() (this=0x7fffb9348c08) at /usr/include/boost/bind/bind_template.hpp:20 #7 0x00007ffff6f3c2fd 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 0x00000000013a540c in boost::function0::operator() (this=0x7fffb9348c00) at /usr/include/boost/function/function_template.hpp:1013 #9 0x00007ffff6dded01 in ARDOUR::AudioEngine::_start_process_thread (arg=0x409e1b0) at ../libs/ardour/audioengine.cc:1476 #10 0x00007fffec1e6b40 in start_thread (arg=) at pthread_create.c:304 #11 0x00007fffebf3136d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #12 0x0000000000000000 in ?? () Thread 18 (Thread 0x7fffb93ca700 (LWP 7659)): #0 sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:86 #1 0x00007ffff6f390ec in PBD::ProcessSemaphore::wait (this=0x408dde8) at /usr/local/src/ardour3/libs/pbd/pbd/semutils.h:41 #2 0x00007ffff6f375ca in ARDOUR::Graph::run_one (this=0x408dd20) at ../libs/ardour/graph.cc:433 #3 0x00007ffff6f37bc8 in ARDOUR::Graph::main_thread (this=0x408dd20) at ../libs/ardour/graph.cc:522 #4 0x00007ffff6f3d196 in boost::_mfi::mf0::operator() (this=0x7fffb93c9c08, p=0x408dd20) at /usr/include/boost/bind/mem_fn_template.hpp:49 #5 0x00007ffff6f3cba2 in boost::_bi::list1 >::operator(), boost::_bi::list0> (this=0x7fffb93c9c18, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253 #6 0x00007ffff6f3c78d in boost::_bi::bind_t, boost::_bi::list1 > >::operator() (this=0x7fffb93c9c08) at /usr/include/boost/bind/bind_template.hpp:20 #7 0x00007ffff6f3c2fd 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 0x00000000013a540c in boost::function0::operator() (this=0x7fffb93c9c00) at /usr/include/boost/function/function_template.hpp:1013 #9 0x00007ffff6dded01 in ARDOUR::AudioEngine::_start_process_thread (arg=0x409e1b0) at ../libs/ardour/audioengine.cc:1476 #10 0x00007fffec1e6b40 in start_thread (arg=) at pthread_create.c:304 #11 0x00007fffebf3136d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #12 0x0000000000000000 in ?? () Thread 17 (Thread 0x7fffe0087700 (LWP 7658)): #0 sem_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S:106 #1 0x00007fffee097180 in ?? () from /usr/lib/libjack.so.0 #2 0x00007fffee08614a in ?? () from /usr/lib/libjack.so.0 #3 0x00007fffee0849d7 in ?? () from /usr/lib/libjack.so.0 #4 0x00007ffff6ddb190 in ARDOUR::AudioEngine::process_thread (this=0x2ba3bb0) at ../libs/ardour/audioengine.cc:441 #5 0x00007ffff6ddaba4 in ARDOUR::AudioEngine::_process_thread (arg=0x2ba3bb0) at ../libs/ardour/audioengine.cc:352 #6 0x00007fffee082b88 in ?? () from /usr/lib/libjack.so.0 #7 0x00007fffee0967a0 in ?? () from /usr/lib/libjack.so.0 #8 0x00007fffec1e6b40 in start_thread (arg=) at pthread_create.c:304 #9 0x00007fffebf3136d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #10 0x0000000000000000 in ?? () Thread 16 (Thread 0x7fffe062d700 (LWP 7654)): #0 0x00007fffec1ee17d in read () at ../sysdeps/unix/syscall-template.S:82 #1 0x00007fffee09842a in ?? () from /usr/lib/libjack.so.0 #2 0x00007fffee09acf7 in ?? () from /usr/lib/libjack.so.0 #3 0x00007fffee0967a0 in ?? () from /usr/lib/libjack.so.0 #4 0x00007fffec1e6b40 in start_thread (arg=) at pthread_create.c:304 #5 0x00007fffebf3136d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #6 0x0000000000000000 in ?? () Thread 15 (Thread 0x7fffe06ae700 (LWP 7653)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162 #1 0x00007fffee097f21 in ?? () from /usr/lib/libjack.so.0 #2 0x00007fffee0935f5 in ?? () from /usr/lib/libjack.so.0 #3 0x00007fffee0967a0 in ?? () from /usr/lib/libjack.so.0 #4 0x00007fffec1e6b40 in start_thread (arg=) at pthread_create.c:304 #5 0x00007fffebf3136d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #6 0x0000000000000000 in ?? () Thread 5 (Thread 0x7fffe2ef5700 (LWP 7636)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162 #1 0x00007ffff6d6cf91 in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:85 ---Type to continue, or q to quit--- #2 0x00007ffff6d6cd29 in analyser_work () at ../libs/ardour/analyser.cc:49 #3 0x0000000001947699 in sigc::pointer_functor0::operator() (this=0x283f3e8) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77 #4 0x000000000194505a in sigc::adaptor_functor >::operator() (this=0x283f3e0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 #5 0x0000000001942221 in sigc::internal::slot_call0, void>::call_it (rep=0x283f3b0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103 #6 0x00007ffff371c94d in operator() (this=0x2811850) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:440 #7 (anonymous namespace)::call_thread_entry_slot (data=0x2811850) at thread.cc:44 #8 0x00007ffff2bed986 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #9 0x00007fffec1e6b40 in start_thread (arg=) at pthread_create.c:304 #10 0x00007fffebf3136d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #11 0x0000000000000000 in ?? () Thread 4 (Thread 0x7fffe36f6700 (LWP 7635)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162 #1 0x00007ffff7216059 in peak_thread_work () at ../libs/ardour/source_factory.cc:68 #2 0x0000000001947699 in sigc::pointer_functor0::operator() (this=0x283f818) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77 #3 0x000000000194505a in sigc::adaptor_functor >::operator() (this=0x283f810) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 #4 0x0000000001942221 in sigc::internal::slot_call0, void>::call_it (rep=0x283f7e0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103 #5 0x00007ffff371c94d in operator() (this=0x2811e40) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:440 #6 (anonymous namespace)::call_thread_entry_slot (data=0x2811e40) at thread.cc:44 #7 0x00007ffff2bed986 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #8 0x00007fffec1e6b40 in start_thread (arg=) at pthread_create.c:304 #9 0x00007fffebf3136d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #10 0x0000000000000000 in ?? () Thread 3 (Thread 0x7fffe3ef7700 (LWP 7634)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162 #1 0x00007ffff7216059 in peak_thread_work () at ../libs/ardour/source_factory.cc:68 #2 0x0000000001947699 in sigc::pointer_functor0::operator() (this=0x283fc78) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77 #3 0x000000000194505a in sigc::adaptor_functor >::operator() (this=0x283fc70) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 #4 0x0000000001942221 in sigc::internal::slot_call0, void>::call_it (rep=0x283fc40) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103 #5 0x00007ffff371c94d in operator() (this=0x2810d10) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:440 #6 (anonymous namespace)::call_thread_entry_slot (data=0x2810d10) at thread.cc:44 #7 0x00007ffff2bed986 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #8 0x00007fffec1e6b40 in start_thread (arg=) at pthread_create.c:304 #9 0x00007fffebf3136d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #10 0x0000000000000000 in ?? () Thread 2 (Thread 0x7fffe46f8700 (LWP 7633)): #0 0x00007fffebf021cd in nanosleep () at ../sysdeps/unix/syscall-template.S:82 #1 0x00007fffebf2b584 in usleep (useconds=) at ../sysdeps/unix/sysv/linux/usleep.c:33 #2 0x00007ffff72503c3 in gui_event_loop (ptr=0x0) at ../libs/ardour/vstfxwin.cc:382 #3 0x00007fffec1e6b40 in start_thread (arg=) at pthread_create.c:304 #4 0x00007fffebf3136d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #5 0x0000000000000000 in ?? () Thread 1 (Thread 0x7ffff7f9c9a0 (LWP 7627)): #0 0x00007fffebe8e405 in *__GI_raise (sig=) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 #1 0x00007fffebe91680 in *__GI_abort () at abort.c:92 #2 0x00007fffebe875b1 in *__GI___assert_fail (assertion=0x7ffff72d9a44 "i != _channel.end ()", file=, line=544, function=0x7ffff72da5e0 "uint32_t ARDOUR::Bundle::type_channel_to_overall(ARDOUR::DataType, uint32_t) const") at assert.c:81 #3 0x00007ffff6e51323 in ARDOUR::Bundle::type_channel_to_overall (this=0x708e3f0, t=..., c=0) at ../libs/ardour/bundle.cc:544 #4 0x000000000191b9aa in PortMatrixComponent::position_to_channel (this=0x719bac0, p=0.95833333333333337, group=...) at ../gtk2_ardour/port_matrix_component.cc:200 #5 0x00000000019196cc in PortMatrixColumnLabels::position_to_channel (this=0x719bac0, p=77, o=11, group=...) at ../gtk2_ardour/port_matrix_column_labels.cc:448 #6 0x00000000019199e6 in PortMatrixColumnLabels::motion (this=0x719bac0, x=77, y=11) at ../gtk2_ardour/port_matrix_column_labels.cc:476 #7 0x0000000001914230 in PortMatrixBody::on_motion_notify_event (this=0x719b9a0, ev=0x7fffdc078920) at ../gtk2_ardour/port_matrix_body.cc:407 #8 0x00007ffff005ed53 in Gtk::Widget_Class::motion_notify_event_callback (self=0x70139c0, p0=0x7fffdc078920) at widget.cc:4757 #9 0x00007ffff267d1a8 in _gtk_marshal_BOOLEAN__BOXED (closure=0x2672c10, return_value=0x7fffffffcc90, n_param_values=, param_values=0x717da70, invocation_hint=, marshal_data=) at /build/buildd-gtk+2.0_2.24.7-1-amd64-huURlY/gtk+2.0-2.24.7/gtk/gtkmarshalers.c:86 #10 0x00007ffff349a804 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #11 0x00007ffff34ac5bf in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #12 0x00007ffff34b5be3 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #13 0x00007ffff34b5fb2 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #14 0x00007ffff2796051 in gtk_widget_event_internal (widget=0x70139c0, event=0x7fffdc078920) at /build/buildd-gtk+2.0_2.24.7-1-amd64-huURlY/gtk+2.0-2.24.7/gtk/gtkwidget.c:4984 #15 0x00007ffff267b363 in IA__gtk_propagate_event (widget=0x70139c0, event=0x7fffdc078920) at /build/buildd-gtk+2.0_2.24.7-1-amd64-huURlY/gtk+2.0-2.24.7/gtk/gtkmain.c:2489 ---Type to continue, or q to quit--- #16 0x00007ffff267b6c3 in IA__gtk_main_do_event (event=0x7fffdc078920) at /build/buildd-gtk+2.0_2.24.7-1-amd64-huURlY/gtk+2.0-2.24.7/gtk/gtkmain.c:1684 #17 0x00007ffff22e71dc in gdk_event_dispatch (source=, callback=, user_data=) at /build/buildd-gtk+2.0_2.24.7-1-amd64-huURlY/gtk+2.0-2.24.7/gdk/x11/gdkevents-x11.c:2377 #18 0x00007ffff2bc81ad in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #19 0x00007ffff2bc89a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #20 0x00007ffff2bc8ee2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #21 0x00007ffff267a717 in IA__gtk_main () at /build/buildd-gtk+2.0_2.24.7-1-amd64-huURlY/gtk+2.0-2.24.7/gtk/gtkmain.c:1256 #22 0x00007ffff515b978 in Gtkmm2ext::UI::run (this=0x2603c20, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:268 #23 0x00000000017a3e7f in main (argc=1, argv=0x7fffffffd3a8) at ../gtk2_ardour/main.cc:557 (gdb)