Thread 1 "ArdourGUI" received signal SIGFPE, Arithmetic exception.
0x00007ffff495bfc4 in __divti3 () from /lib/x86_64-linux-gnu/libgcc_s.so.1
(gdb) thread apply all bt

Thread 111 (Thread 0x7fff727fc640 (LWP 152513) "AutomationWatch"):
#0  0x00007ffff42e57f8 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fff727fb250, rem=0x7fff727fb240) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007ffff42ea677 in __GI___nanosleep (req=<optimized out>, rem=<optimized out>) at ../sysdeps/unix/sysv/linux/nanosleep.c:25
#2  0x00007ffff5bf7f77 in g_usleep () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff73f72bc in ARDOUR::AutomationWatch::thread() (this=0x55555b677c90) at ../libs/ardour/automation_watch.cc:206
#4  0x00007ffff68b0bbb in std::function<void ()>::operator()() const (this=0x0) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#5  PBD::Thread::_run(void*) (arg=0x55555b5a7ef0) at ../libs/pbd/pthread_utils.cc:586
#6  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 110 (Thread 0x7fff72ffd640 (LWP 152512) "AutoConnect"):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55555927ecc8) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555927ecc8) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55555927ecc8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff4293a41 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55555927ec78, cond=0x55555927eca0) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55555927eca0, mutex=0x55555927ec78) at ./nptl/pthread_cond_wait.c:627
#5  0x00007ffff77e5861 in ARDOUR::Session::auto_connect_thread_run() (this=this@entry=0x55555927c8c0) at ../libs/ardour/session.cc:7990
#6  0x00007ffff77e51b6 in ARDOUR::Session::auto_connect_thread(void*) (arg=0x55555927ecc8, arg@entry=0x55555927c8c0) at ../libs/ardour/session.cc:7922
#7  0x00007ffff68b007a in fake_thread_start(void*) (arg=0x55555a1379e0) at ../libs/pbd/pthread_utils.cc:191
#8  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

--Type <RET> for more, q to quit, c to continue without paging--c
Thread 109 (Thread 0x7fff737fe640 (LWP 152511) "SessionSignals"):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55555927ec58) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555927ec58) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55555927ec58, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff4293a41 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55555927ec08, cond=0x55555927ec30) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55555927ec30, mutex=0x55555927ec08) at ./nptl/pthread_cond_wait.c:627
#5  0x00007ffff78345f3 in ARDOUR::Session::emit_thread_run() (this=this@entry=0x55555927c8c0) at ../libs/ardour/session_process.cc:1241
#6  ARDOUR::Session::emit_thread(void*) (arg=arg@entry=0x55555927c8c0) at ../libs/ardour/session_process.cc:1231
#7  0x00007ffff68b007a in fake_thread_start(void*) (arg=0x55555e1da400) at ../libs/pbd/pthread_utils.cc:191
#8  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 108 (Thread 0x7fff797fa640 (LWP 152510) "Ctrl USB Hotplu"):
#0  0x00007ffff4318c3f in __GI___poll (fds=0x7fff54000b90, nfds=2, timeout=60000) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff4ac506e in  () at /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x00007ffff4ac6cd8 in libusb_handle_events_timeout_completed () at /lib/x86_64-linux-gnu/libusb-1.0.so.0
#3  0x00007ffff4ac6d43 in libusb_handle_events () at /lib/x86_64-linux-gnu/libusb-1.0.so.0
#4  0x00007ffff740d6d5 in usb_hotplug_thread(void*) (user_data=<optimized out>) at ../libs/ardour/control_protocol_manager.cc:87
#5  0x00007ffff68b007a in fake_thread_start(void*) (arg=0x555559ec9970) at ../libs/pbd/pthread_utils.cc:191
#6  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 107 (Thread 0x7fff78ff9640 (LWP 152509) "libusb_event"):
#0  0x00007ffff4318c3f in __GI___poll (fds=0x7fff78ff82a0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff4ac14c2 in  () at /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#3  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 106 (Thread 0x7fff79ffb640 (LWP 152508) "midiUI"):
#0  0x00007ffff4318c3f in __GI___poll (fds=0x7fff60000c90, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff5c23256 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff5bcd2b3 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff688bc36 in BaseUI::main_thread() (this=0x55555a891900) at ../libs/pbd/base_ui.cc:101
#4  0x00007ffff68b0bbb in std::function<void ()>::operator()() const (this=0x7fff60000c90) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#5  PBD::Thread::_run(void*) (arg=0x5555670a3090) at ../libs/pbd/pthread_utils.cc:586
#6  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 105 (Thread 0x7fffd032a2c0 (LWP 152507) "butler"):
#0  0x00007ffff4318c3f in __GI___poll (fds=0x7fffd0328dc8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff6895a3c in CrossThreadChannel::poll_for_request() (this=0x555559334d48) at ../libs/pbd/crossthread.posix.cc:108
#2  CrossThreadChannel::receive(char&, bool) (this=0x555559334d48, msg=@0x7fffd0328e10: -16 '\360', wait=<optimized out>) at ../libs/pbd/crossthread.posix.cc:133
#3  0x00007ffff740103e in ARDOUR::Butler::thread_work() (this=this@entry=0x555559334ca0) at ../libs/ardour/butler.cc:209
#4  0x00007ffff7400f40 in ARDOUR::Butler::_thread_work(void*) (arg=arg@entry=0x555559334ca0) at ../libs/ardour/butler.cc:179
#5  0x00007ffff68b007a in fake_thread_start(void*) (arg=0x55555aee8060) at ../libs/pbd/pthread_utils.cc:191
#6  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 98 (Thread 0x7fff7a7fc640 (LWP 152500) "IO-5-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff68b4065 in PBD::Semaphore::wait() (this=0x80) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff754b724 in ARDOUR::IOTaskList::io_thread() (this=this@entry=0x55555d53b990) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff754b3a0 in ARDOUR::IOTaskList::_worker_thread(void*) (me=0x55555d53b990) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#5  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 97 (Thread 0x7fff7affd640 (LWP 152499) "IO-4-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff68b4065 in PBD::Semaphore::wait() (this=0x80) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff754b724 in ARDOUR::IOTaskList::io_thread() (this=this@entry=0x55555d53b990) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff754b3a0 in ARDOUR::IOTaskList::_worker_thread(void*) (me=0x55555d53b990) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#5  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 96 (Thread 0x7fff73fff640 (LWP 152498) "IO-3-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff68b4065 in PBD::Semaphore::wait() (this=0x80) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff754b724 in ARDOUR::IOTaskList::io_thread() (this=this@entry=0x55555d53b990) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff754b3a0 in ARDOUR::IOTaskList::_worker_thread(void*) (me=0x55555d53b990) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#5  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 95 (Thread 0x7fff7b7fe640 (LWP 152497) "IO-2-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff68b4065 in PBD::Semaphore::wait() (this=0x80) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff754b724 in ARDOUR::IOTaskList::io_thread() (this=this@entry=0x55555d53b990) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff754b3a0 in ARDOUR::IOTaskList::_worker_thread(void*) (me=0x55555d53b990) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#5  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 94 (Thread 0x7fff7bfff640 (LWP 152496) "IO-1-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff68b4065 in PBD::Semaphore::wait() (this=0x80) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff754b724 in ARDOUR::IOTaskList::io_thread() (this=this@entry=0x55555d53b990) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff754b3a0 in ARDOUR::IOTaskList::_worker_thread(void*) (me=0x55555d53b990) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#5  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 93 (Thread 0x7fffa0ff9640 (LWP 152495) "IO-0-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff68b4065 in PBD::Semaphore::wait() (this=0x80) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff754b724 in ARDOUR::IOTaskList::io_thread() (this=this@entry=0x55555d53b990) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff754b3a0 in ARDOUR::IOTaskList::_worker_thread(void*) (me=0x55555d53b990) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#5  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 92 (Thread 0x7fffa17fa640 (LWP 152494) "RT-6-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff68b4065 in PBD::Semaphore::wait() (this=0x80) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff74fd8d7 in ARDOUR::Graph::reached_terminal_node() (this=0x5555588c5a40) at ../libs/ardour/graph.cc:267
#3  0x00007ffff74fdaa5 in ARDOUR::Graph::run_one() (this=this@entry=0x5555588c5a40) at ../libs/ardour/graph.cc:344
#4  0x00007ffff74fd5c8 in ARDOUR::Graph::helper_thread() (this=0x5555588c5a40) at ../libs/ardour/graph.cc:372
#5  0x00007fffd2a3ed00 in std::function<void ()>::operator()() const (this=0x7fffa17f92a0) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#6  ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x555559a036a0) at ../libs/backends/jack/jack_audiobackend.cc:895
#7  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#8  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 91 (Thread 0x7fffa1ffb640 (LWP 152493) "RT-5-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff68b4065 in PBD::Semaphore::wait() (this=0x80) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff74fd9c7 in ARDOUR::Graph::run_one() (this=this@entry=0x5555588c5a40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff74fd5c8 in ARDOUR::Graph::helper_thread() (this=0x5555588c5a40) at ../libs/ardour/graph.cc:372
#4  0x00007fffd2a3ed00 in std::function<void ()>::operator()() const (this=0x7fffa1ffa2a0) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#5  ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x5555599f3b90) at ../libs/backends/jack/jack_audiobackend.cc:895
#6  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 90 (Thread 0x7fffa27fc640 (LWP 152492) "RT-4-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff68b4065 in PBD::Semaphore::wait() (this=0x80) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff74fd9c7 in ARDOUR::Graph::run_one() (this=this@entry=0x5555588c5a40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff74fd5c8 in ARDOUR::Graph::helper_thread() (this=0x5555588c5a40) at ../libs/ardour/graph.cc:372
#4  0x00007fffd2a3ed00 in std::function<void ()>::operator()() const (this=0x7fffa27fb2a0) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#5  ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x555559fa7710) at ../libs/backends/jack/jack_audiobackend.cc:895
#6  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 89 (Thread 0x7fffa2ffd640 (LWP 152491) "RT-3-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff68b4065 in PBD::Semaphore::wait() (this=0x80) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff74fd9c7 in ARDOUR::Graph::run_one() (this=this@entry=0x5555588c5a40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff74fd5c8 in ARDOUR::Graph::helper_thread() (this=0x5555588c5a40) at ../libs/ardour/graph.cc:372
#4  0x00007fffd2a3ed00 in std::function<void ()>::operator()() const (this=0x7fffa2ffc2a0) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#5  ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x555559fa7a40) at ../libs/backends/jack/jack_audiobackend.cc:895
#6  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 88 (Thread 0x7fffbaffd640 (LWP 152490) "RT-2-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff68b4065 in PBD::Semaphore::wait() (this=0x80) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff74fd9c7 in ARDOUR::Graph::run_one() (this=this@entry=0x5555588c5a40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff74fd5c8 in ARDOUR::Graph::helper_thread() (this=0x5555588c5a40) at ../libs/ardour/graph.cc:372
#4  0x00007fffd2a3ed00 in std::function<void ()>::operator()() const (this=0x7fffbaffc2a0) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#5  ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x55555ce57430) at ../libs/backends/jack/jack_audiobackend.cc:895
#6  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 87 (Thread 0x7fffb97fa640 (LWP 152489) "RT-1-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff68b4065 in PBD::Semaphore::wait() (this=0x80) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff74fd9c7 in ARDOUR::Graph::run_one() (this=this@entry=0x5555588c5a40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff74fd5c8 in ARDOUR::Graph::helper_thread() (this=0x5555588c5a40) at ../libs/ardour/graph.cc:372
#4  0x00007fffd2a3ed00 in std::function<void ()>::operator()() const (this=0x7fffb97f92a0) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#5  ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x5555585e9990) at ../libs/backends/jack/jack_audiobackend.cc:895
#6  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 86 (Thread 0x7fffa3fff640 (LWP 152488) "RT-main-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff68b4065 in PBD::Semaphore::wait() (this=0x80) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff74fd9c7 in ARDOUR::Graph::run_one() (this=this@entry=0x5555588c5a40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff74fd388 in ARDOUR::Graph::main_thread() (this=0x5555588c5a40) at ../libs/ardour/graph.cc:425
#4  0x00007fffd2a3ed00 in std::function<void ()>::operator()() const (this=0x7fffa3ffe2a0) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#5  ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x555559fa78f0) at ../libs/backends/jack/jack_audiobackend.cc:895
#6  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 62 (Thread 0x7fffb9ffb640 (LWP 152464) "pool-ardour-9.0"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5c1d0ac in g_cond_wait_until () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff5b9d3e1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff5b9d566 in g_async_queue_timeout_pop () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffff5bff7b9 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff5bfcab1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 45 (Thread 0x7fffbb7fe640 (LWP 152410) "AudioEngine 1"):
#0  0x00007ffff4325e9e in epoll_wait (epfd=17, events=events@entry=0x7fffbb7fca70, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007fffd2770888 in impl_pollfd_wait (object=<optimized out>, pfd=<optimized out>, ev=0x7fffbb7fccb0, n_ev=<optimized out>, timeout=<optimized out>) at ../spa/plugins/support/system.c:138
#2  0x00007fffd275d129 in spa_system_pollfd_wait (timeout=-1, n_ev=32, ev=0x7fffbb7fccb0, pfd=<optimized out>, object=<optimized out>) at ../spa/include/spa/support/system.h:154
#3  loop_iterate_cancel (object=0x5555578b6598, timeout=-1) at ../spa/plugins/support/loop.c:654
#4  0x00007fffd27d5b99 in spa_loop_control_iterate_fast (timeout=-1, object=<optimized out>) at ../spa/include/spa/support/loop.h:312
#5  pw_loop_iterate (timeout=-1, object=<optimized out>) at ../src/pipewire/loop.h:89
#6  pw_data_loop_wait (this=0x5555578973a0, timeout=timeout@entry=-1) at ../src/pipewire/data-loop.c:29
#7  0x00007fffd29f51f4 in cycle_wait (c=<optimized out>) at ../pipewire-jack/src/pipewire-jack.c:2073
#8  jack_cycle_wait (client=0x555557122e00) at ../pipewire-jack/src/pipewire-jack.c:5011
#9  0x00007fffd2a3efb7 in ARDOUR::JACKAudioBackend::process_thread() (this=0x555556eded90) at ../libs/backends/jack/jack_audiobackend.cc:924
#10 0x00007fffd2a3e756 in ARDOUR::JACKAudioBackend::_process_thread(void*) (arg=0x11) at ../libs/backends/jack/jack_audiobackend.cc:903
#11 0x00007fffd275d28e in loop_iterate_cancel (object=object@entry=0x5555578b6598, timeout=timeout@entry=-1) at ../spa/plugins/support/loop.c:684
#12 0x00007fffd27d5a20 in do_loop (user_data=0x5555578973a0) at ../src/pipewire/data-loop.c:67
#13 0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#14 0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 44 (Thread 0x7fffbbfff640 (LWP 152409) "pw-ardour"):
#0  0x00007ffff4325e9e in epoll_wait (epfd=20, events=events@entry=0x7fffbbffdec0, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007fffd2770888 in impl_pollfd_wait (object=<optimized out>, pfd=<optimized out>, ev=0x7fffbbffe070, n_ev=<optimized out>, timeout=<optimized out>) at ../spa/plugins/support/system.c:138
#2  0x00007fffd275cee3 in spa_system_pollfd_wait (timeout=-1, n_ev=32, ev=0x7fffbbffe070, pfd=<optimized out>, object=<optimized out>) at ../spa/include/spa/support/system.h:154
#3  loop_iterate (object=0x555556fd9e28, timeout=-1) at ../spa/plugins/support/loop.c:701
#4  0x00007fffd28481ac in spa_loop_control_iterate_fast (timeout=-1, object=<optimized out>) at ../spa/include/spa/support/loop.h:312
#5  pw_loop_iterate (timeout=-1, object=<optimized out>) at ../src/pipewire/loop.h:89
#6  do_loop (user_data=0x55555711c810) at ../src/pipewire/thread-loop.c:294
#7  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#8  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 43 (Thread 0x7fffba7fc640 (LWP 152408) "pw-ardour"):
#0  0x00007ffff4325e9e in epoll_wait (epfd=14, events=events@entry=0x7fffba7faec0, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007fffd2770888 in impl_pollfd_wait (object=<optimized out>, pfd=<optimized out>, ev=0x7fffba7fb070, n_ev=<optimized out>, timeout=<optimized out>) at ../spa/plugins/support/system.c:138
#2  0x00007fffd275cee3 in spa_system_pollfd_wait (timeout=-1, n_ev=32, ev=0x7fffba7fb070, pfd=<optimized out>, object=<optimized out>) at ../spa/include/spa/support/system.h:154
#3  loop_iterate (object=0x55555785b428, timeout=-1) at ../spa/plugins/support/loop.c:701
#4  0x00007fffd28481ac in spa_loop_control_iterate_fast (timeout=-1, object=<optimized out>) at ../spa/include/spa/support/loop.h:312
#5  pw_loop_iterate (timeout=-1, object=<optimized out>) at ../src/pipewire/loop.h:89
#6  do_loop (user_data=0x5555578abed0) at ../src/pipewire/thread-loop.c:294
#7  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#8  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 29 (Thread 0x7fffd14cf640 (LWP 152393) "gdbus"):
#0  0x00007ffff4318c3f in __GI___poll (fds=0x5555570e8d20, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff5c23256 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff5bcd2b3 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff4c5a7ea in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007ffff5bfcab1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#6  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 28 (Thread 0x7fffd1cd0640 (LWP 152392) "gmain"):
#0  0x00007ffff4318c3f in __GI___poll (fds=0x555557003d60, nfds=2, timeout=7672) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff5c23256 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff5bcb3e3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff5bcb431 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffff5bfcab1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#6  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 10 (Thread 0x7fffd32bd640 (LWP 152373) "DeviceList"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5c1cba3 in g_cond_wait () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff739bb5b in ARDOUR::AudioEngine::do_devicelist_update() (this=0x5555572c4640) at ../libs/ardour/audioengine.cc:763
#3  0x00007ffff68b0bbb in std::function<void ()>::operator()() const (this=0x5555572c5088) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#4  PBD::Thread::_run(void*) (arg=0x5555572da3b0) at ../libs/pbd/pthread_utils.cc:586
#5  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#6  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 9 (Thread 0x7fffd3f4f640 (LWP 152372) "EngineWatchdog"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5c1cba3 in g_cond_wait () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff739b17d in ARDOUR::AudioEngine::do_reset_backend() (this=0x5555572c4640) at ../libs/ardour/audioengine.cc:728
#3  0x00007ffff68b0bbb in std::function<void ()>::operator()() const (this=0x5555572c5058) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#4  PBD::Thread::_run(void*) (arg=0x5555572db380) at ../libs/pbd/pthread_utils.cc:586
#5  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#6  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Warning: the current language does not match this frame.

Thread 6 (Thread 0x7fffe8ef3640 (LWP 152366) "Analyzer"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5c1cba3 in g_cond_wait () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff7367bff in ARDOUR::Analyser::work() () at ../libs/ardour/analyser.cc:95
#3  0x00007ffff68b0bbb in std::function<void ()>::operator()() const (this=0x7ffff7d68278 <ARDOUR::Analyser::SourcesToAnalyse+8>) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#4  PBD::Thread::_run(void*) (arg=0x555556c70a30) at ../libs/pbd/pthread_utils.cc:586
#5  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#6  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 5 (Thread 0x7fffe96f4640 (LWP 152365) "PeakFileBuilder"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5c1cba3 in g_cond_wait () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff78b28d7 in peak_thread_work() () at ../libs/ardour/source_factory.cc:73
#3  0x00007ffff68b0bbb in std::function<void ()>::operator()() const (this=0x7ffff7d6ad10 <ARDOUR::SourceFactory::PeaksToBuild+8>) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#4  PBD::Thread::_run(void*) (arg=0x555556c70ed0) at ../libs/pbd/pthread_utils.cc:586
#5  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#6  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 4 (Thread 0x7fffe9ef5640 (LWP 152364) "PeakFileBuilder"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5c1cba3 in g_cond_wait () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff78b298c in peak_thread_work() () at ../libs/ardour/source_factory.cc:73
#3  0x00007ffff68b0bbb in std::function<void ()>::operator()() const (this=0x7ffff7d6ad10 <ARDOUR::SourceFactory::PeaksToBuild+8>) at /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/std_function.h:590
#4  PBD::Thread::_run(void*) (arg=0x555556c71720) at ../libs/pbd/pthread_utils.cc:586
#5  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#6  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 3 (Thread 0x7fffea6f6640 (LWP 152363) "LXVSTEventLoop"):
#0  0x00007ffff42e57f8 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fffea6f50d0, rem=0x7fffea6f50c0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007ffff42ea677 in __GI___nanosleep (req=<optimized out>, rem=<optimized out>) at ../sysdeps/unix/sysv/linux/nanosleep.c:25
#2  0x00007ffff5bf7f77 in g_usleep () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x000055555693b94d in gui_event_loop(void*) () at ../gtk2_ardour/linux_vst_gui_support.cc:465
#4  0x00007ffff68b007a in fake_thread_start(void*) (arg=0x555556c59890) at ../libs/pbd/pthread_utils.cc:191
#5  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#6  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 2 (Thread 0x7fffeb1462c0 (LWP 152362) "TriggerBox Work"):
#0  0x00007ffff4318c3f in __GI___poll (fds=0x7fffeb144e38, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff6895a3c in CrossThreadChannel::poll_for_request() (this=0x555556c1d780) at ../libs/pbd/crossthread.posix.cc:108
#2  CrossThreadChannel::receive(char&, bool) (this=0x555556c1d780, msg=@0x7fffeb144e6f: 0 '\000', wait=<optimized out>) at ../libs/pbd/crossthread.posix.cc:133
#3  0x00007ffff7912204 in ARDOUR::TriggerBoxThread::thread_work() (this=this@entry=0x555556c1d750) at ../libs/ardour/triggerbox.cc:5624
#4  0x00007ffff791213e in ARDOUR::TriggerBoxThread::_thread_work(void*) (arg=arg@entry=0x555556c1d750) at ../libs/ardour/triggerbox.cc:5614
#5  0x00007ffff68b007a in fake_thread_start(void*) (arg=0x555556c1beb0) at ../libs/pbd/pthread_utils.cc:191
#6  0x00007ffff4294ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007ffff43268c0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 1 (Thread 0x7fffeb26d2c0 (LWP 152359) "ArdourGUI"):
#0  0x00007ffff495bfc4 in __divti3 () at /lib/x86_64-linux-gnu/libgcc_s.so.1
#1  0x00005555560b357a in PBD::muldiv_round(long, long, long) (v=2234368, d=0, n=<optimized out>) at ../libs/pbd/pbd/integer_division.h:85
#2  Temporal::samples_to_superclock(long, int) (samples=2234368, sr=0) at ../libs/temporal/temporal/superclock.h:49
#3  Editor::compute_current_bbt_points(std::vector<Temporal::TempoMapPoint, std::allocator<Temporal::TempoMapPoint> >&, long, long) (this=<optimized out>, grid=std::vector of length 0, capacity 4096, leftmost=<optimized out>, rightmost=2234368) at ../gtk2_ardour/editor_tempodisplay.cc:431
#4  0x000055555608c18b in Editor::metric_get_bbt(std::vector<ArdourCanvas::Ruler::Mark, std::allocator<ArdourCanvas::Ruler::Mark> >&, long, long, int) (this=0x55555b970100, marks=std::vector of length 0, capacity 0, lower=0, upper=2234368) at ../gtk2_ardour/editor_rulers.cc:1086
#5  0x00007ffff6b3d87a in ArdourCanvas::Ruler::render(ArdourCanvas::Rect const&, Cairo::RefPtr<Cairo::Context>) const (this=0x555556bf63a0, area=..., cr=...) at ../libs/canvas/ruler.cc:139
#6  0x00007ffff6b26e2f in ArdourCanvas::Item::render_children(ArdourCanvas::Rect const&, Cairo::RefPtr<Cairo::Context>) const (this=0x55555736e800, area=..., context=...) at ../libs/canvas/item.cc:946
#7  0x00007ffff6b20056 in ArdourCanvas::Container::render(ArdourCanvas::Rect const&, Cairo::RefPtr<Cairo::Context>) const (this=0x55555736e800, area=<optimized out>, context=...) at ../libs/canvas/container.cc:58
#8  0x00007ffff6b26e2f in ArdourCanvas::Item::render_children(ArdourCanvas::Rect const&, Cairo::RefPtr<Cairo::Context>) const (this=0x55555862b200, area=..., context=...) at ../libs/canvas/item.cc:946
#9  0x00007ffff6b20056 in ArdourCanvas::Container::render(ArdourCanvas::Rect const&, Cairo::RefPtr<Cairo::Context>) const (this=0x55555862b200, area=<optimized out>, context=...) at ../libs/canvas/container.cc:58
#10 0x00007ffff6b3e2b9 in ArdourCanvas::ScrollGroup::render(ArdourCanvas::Rect const&, Cairo::RefPtr<Cairo::Context>) const (this=0x55555862b200, area=..., context=...) at ../libs/canvas/scroll_group.cc:71
#11 0x00007ffff6b26e2f in ArdourCanvas::Item::render_children(ArdourCanvas::Rect const&, Cairo::RefPtr<Cairo::Context>) const (this=0x5555574d6ca8, area=..., context=...) at ../libs/canvas/item.cc:946
#12 0x00007ffff6b20056 in ArdourCanvas::Container::render(ArdourCanvas::Rect const&, Cairo::RefPtr<Cairo::Context>) const (this=0x5555574d6ca8, area=<optimized out>, context=...) at ../libs/canvas/container.cc:58
#13 0x00007ffff6b192bc in ArdourCanvas::Canvas::render(ArdourCanvas::Rect const&, Cairo::RefPtr<Cairo::Context> const&) const (this=this@entry=0x5555574d6c78, area=..., context=...) at ../libs/canvas/canvas.cc:169
#14 0x00007ffff6b1c3b0 in ArdourCanvas::GtkCanvas::on_expose_event(_GdkEventExpose*) (this=0x5555574d6c78, ev=0x7fffffff98b8) at ../libs/canvas/canvas.cc:1097
#15 0x00007ffff6b1c7bd in non-virtual thunk to ArdourCanvas::GtkCanvas::on_expose_event(_GdkEventExpose*) () at ../libs/canvas/canvas.cc:1140
#16 0x00007ffff67737b5 in Gtk::Widget_Class::expose_event_callback(_GtkWidget*, _GdkEventExpose*) (self=self@entry=0x5555588f8450, p0=0x7fffffff98b8) at ../libs/tk/ytkmm/widget.cc:4596
#17 0x00007ffff6071874 in _gtk_marshal_BOOLEAN__BOXED (closure=0x5555573a4500, return_value=0x7fffffff94f0, n_param_values=<optimized out>, param_values=0x7fffffff9550, invocation_hint=<optimized out>, marshal_data=<optimized out>) at ../libs/tk/ytk/gtkmarshalers.c:84
#18 0x00007ffff59ded2f in g_closure_invoke () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#19 0x00007ffff59fa624 in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#20 0x00007ffff59fc026 in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#21 0x00007ffff59fc863 in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#22 0x00007ffff6196f04 in gtk_widget_event_internal (widget=0x5555588f8450, event=0x7fffffff98b8) at ../libs/tk/ytk/gtkwidget.c:5058
#23 0x00007ffff606f842 in IA__gtk_main_do_event (event=<optimized out>) at ../libs/tk/ytk/gtkmain.c:1571
#24 0x00007ffff636e5f6 in _gdk_window_process_updates_recurse (window=window@entry=0x5555599dfc60, expose_region=expose_region@entry=0x555567caa660) at ../libs/tk/ydk/gdkwindow.c:5491
#25 0x00007ffff636e537 in _gdk_window_process_updates_recurse (window=window@entry=0x5555599dfb40, expose_region=expose_region@entry=0x55555990dac0) at ../libs/tk/ydk/gdkwindow.c:5455
#26 0x00007ffff636e537 in _gdk_window_process_updates_recurse (window=window@entry=0x55555789f120, expose_region=expose_region@entry=0x7fffcb616030) at ../libs/tk/ydk/gdkwindow.c:5455
#27 0x00007ffff636e537 in _gdk_window_process_updates_recurse (window=0x555557893000, expose_region=0x5555679bff80) at ../libs/tk/ydk/gdkwindow.c:5455
#28 0x00007ffff636f050 in gdk_window_process_updates_internal (window=0x555557893000) at ../libs/tk/ydk/gdkwindow.c:5658
#29 0x00007ffff636eaa6 in IA__gdk_window_process_all_updates () at ../libs/tk/ydk/gdkwindow.c:5764
#30 0x00007ffff5fe8ff0 in gtk_container_idle_sizer (data=<optimized out>) at ../libs/tk/ytk/gtkcontainer.c:1360
#31 0x00007ffff6346330 in gdk_threads_dispatch (data=0x7fffa4006c20) at ../libs/tk/ydk/gdk.c:535
#32 0x00007ffff5bcdc44 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007ffff5c232b8 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007ffff5bcb3e3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007ffff606f253 in IA__gtk_main_iteration () at ../libs/tk/ytk/gtkmain.c:1301
#36 0x00007ffff694f0df in Gtkmm2ext::UI::flush_pending(float) (this=<optimized out>, timeout=<optimized out>) at ../libs/gtkmm2ext/gtk_ui.cc:785
#37 0x0000555555e270bc in ARDOUR_UI::load_session_stage_two(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >) (this=this@entry=0x55555732dee0, path="/home/peder/Ard8-LSP-SideTest", snap_name="Ard8-LSP-SideTest", mix_template="") at ../gtk2_ardour/ardour_ui_session.cc:632
#38 0x0000555555e25be1 in ARDOUR_UI::load_session(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >) (this=0x55555732dee0, path="/home/peder/Ard8-LSP-SideTest", snap_name="Ard8-LSP-SideTest", mix_template=Python Exception <class 'gdb.error'>: value has been optimized out
) at ../gtk2_ardour/ardour_ui_session.cc:382
#39 0x0000555555e35f00 in ARDOUR_UI::load_session_from_startup_fsm() (this=this@entry=0x55555732dee0) at ../gtk2_ardour/ardour_ui_startup.cc:702
#40 0x0000555555e353e4 in ARDOUR_UI::sfsm_response(StartupFSM::Result) (this=0x55555732dee0, r=StartupFSM::LoadSession) at ../gtk2_ardour/ardour_ui_startup.cc:555
#41 0x00005555567954f6 in sigc::internal::signal_emit1<void, StartupFSM::Result, sigc::nil>::emit(sigc::internal::signal_impl*, StartupFSM::Result const&) (impl=<optimized out>, _A_a1=@0x7fffffffaed0: StartupFSM::LoadSession) at /usr/include/sigc++-2.0/sigc++/signal.h:1045
#42 0x0000555556790c42 in sigc::signal1<void, StartupFSM::Result, sigc::nil>::emit(StartupFSM::Result const&) const (this=<optimized out>, _A_a1=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:2955
#43 sigc::signal1<void, StartupFSM::Result, sigc::nil>::operator()(StartupFSM::Result const&) const (this=<optimized out>, _A_a1=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:2971
#44 0x0000555556790c42 in StartupFSM::dialog_response_handler(int, StartupFSM::DialogID) ()
#45 0x00007ffff66e5817 in sigc::slot1<void, int>::operator()(int const&) const (_A_a1=@0x7fffffffaf6c: -5, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:665
#46 (anonymous namespace)::Dialog_signal_response_callback(_GtkDialog*, int, void*) (self=<optimized out>, p0=-5, data=0x555556fff230) at ../libs/tk/ytkmm/dialog.cc:85
#47 0x00007ffff59ded2f in g_closure_invoke () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#48 0x00007ffff59fae11 in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#49 0x00007ffff59fc614 in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#50 0x00007ffff59fc863 in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#51 0x0000555556790634 in StartupFSM::engine_running() (this=<optimized out>) at ../gtk2_ardour/startup_fsm.cc:567
#52 0x0000555556790634 in StartupFSM::start_audio_midi_setup() ()
#53 0x00007ffff66e5817 in sigc::slot1<void, int>::operator()(int const&) const (_A_a1=@0x7fffffffb4fc: -3, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:665
#54 (anonymous namespace)::Dialog_signal_response_callback(_GtkDialog*, int, void*) (self=<optimized out>, p0=-3, data=0x55555785e440) at ../libs/tk/ytkmm/dialog.cc:85
#55 0x00007ffff59ded2f in g_closure_invoke () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#56 0x00007ffff59fae11 in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#57 0x00007ffff59fc614 in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#58 0x00007ffff59fc863 in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#59 0x00007ffff676c5e5 in sigc::slot2<void, Gtk::TreePath const&, Gtk::TreeViewColumn*>::operator()(Gtk::TreePath const&, Gtk::TreeViewColumn* const&) const (_A_a1=..., _A_a2=@0x7fffffffb958: 0x55555785d770, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:798
#60 (anonymous namespace)::TreeView_signal_row_activated_callback(_GtkTreeView*, _GtkTreePath*, _GtkTreeViewColumn*, void*) (self=<optimized out>, p0=0x5555570c7540, p1=0x5555578516c0, data=0x5555578797e0) at ../libs/tk/ytkmm/treeview.cc:550
#61 0x00007ffff59ded2f in g_closure_invoke () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#62 0x00007ffff59fae11 in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#63 0x00007ffff59fc614 in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#64 0x00007ffff59fc863 in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#65 0x00007ffff6174348 in gtk_tree_view_button_press (widget=0x55555781c590, event=0x555557894440) at ../libs/tk/ytk/gtktreeview.c:2887
#66 0x00007ffff6071874 in _gtk_marshal_BOOLEAN__BOXED (closure=0x5555573a34c0, return_value=0x7fffffffc000, n_param_values=<optimized out>, param_values=0x7fffffffc060, invocation_hint=<optimized out>, marshal_data=<optimized out>) at ../libs/tk/ytk/gtkmarshalers.c:84
#67 0x00007ffff59ded2f in g_closure_invoke () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#68 0x00007ffff59fa624 in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#69 0x00007ffff59fc026 in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#70 0x00007ffff59fc863 in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#71 0x00007ffff6196f04 in gtk_widget_event_internal (widget=0x55555781c590, event=0x555557894440) at ../libs/tk/ytk/gtkwidget.c:5058
#72 0x00007ffff606faa7 in IA__gtk_propagate_event (widget=0x55555781c590, event=event@entry=0x555557894440) at ../libs/tk/ytk/gtkmain.c:2457
#73 0x00007ffff606f78a in IA__gtk_main_do_event (event=<optimized out>) at ../libs/tk/ytk/gtkmain.c:1638
#74 0x00007ffff638c4bc in gdk_event_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at ../libs/tk/ydk/x11/gdkevents-x11.c:2541
#75 0x00007ffff5bcdd3b in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#76 0x00007ffff5c232b8 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#77 0x00007ffff5bcd2b3 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#78 0x00007ffff606f041 in IA__gtk_main () at ../libs/tk/ytk/gtkmain.c:1213
#79 0x00007ffff694c982 in Gtkmm2ext::UI::run(Receiver&) (this=0x55555732dee0, old_receiver=<optimized out>) at ../libs/gtkmm2ext/gtk_ui.cc:319
#80 0x000055555629f4cd in main(int, char**) (argc=1, argv=0x7fffffffc7b8) at ../gtk2_ardour/main.cc:471