Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffcc0be710 (LWP 3753)] 0x00007ffff79013e4 in ARDOUR::Port::get_buffer (this=0xbd815221bd7af2e2, nframes=1024) at libs/ardour/ardour/port.h:218 218 return (Sample *) jack_port_get_buffer (_port, _buffer_size) + _port_offset; (gdb) thread apply all bt Thread 20 (Thread 0x7fffc6142830 (LWP 3756)): #0 0x00007fffef7a8123 in *__GI___poll (fds=, nfds=, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87 #1 0x00007ffff7a98b9a in ARDOUR::Session::midi_thread_work (this=0x22b9f60) at libs/ardour/session_midi.cc:1220 #2 0x00007ffff7a98682 in ARDOUR::Session::_midi_thread_work (arg=0x22b9f60) at libs/ardour/session_midi.cc:1138 #3 0x00007fffefa4b8ba in start_thread (arg=) at pthread_create.c:300 #4 0x00007fffef7b303d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #5 0x0000000000000000 in ?? () Thread 19 (Thread 0x7fffc61bd830 (LWP 3755)): #0 0x00007fffefa530bd in read () at ../sysdeps/unix/syscall-template.S:82 #1 0x00007ffff1a2beb0 in psf_fread (ptr=0x2300ca4, bytes=4, items=3621012, psf=0x2981aa0) at file_io.c:325 #2 0x00007ffff1a0e161 in sf_read_float (sndfile=0x2981aa0, ptr=0x2300ca4, len=905253) at sndfile.c:1560 #3 0x00007ffff7acc8b4 in ARDOUR::SndFileSource::read_unlocked (this=0x2482bb0, dst=0x2300ca4, start=1007364, cnt=905253) at libs/ardour/sndfilesource.cc:351 #4 0x00007ffff793450c in ARDOUR::AudioSource::read (this=0x2482bb0, dst=0x2300ca4, start=1007364, cnt=905253) at libs/ardour/audiosource.cc:256 #5 0x00007ffff79287de in ARDOUR::AudioRegion::_read_at (this=0x2b86d50, srcs=..., limit=905253, buf=0x22fbd00, mixdown_buffer=0x2300ca4, gain_buffer=0x7fffc6297010, position=10386467, cnt=4294962860, chan_n=0, read_frames=0, skip_frames=0, rops=4294967295) at libs/ardour/audioregion.cc:575 #6 0x00007ffff7928527 in ARDOUR::AudioRegion::read_at (this=0x2b86d50, buf=0x22fbd00, mixdown_buffer=0x7fffc62d8010, gain_buffer=0x7fffc6297010, file_position=10386467, cnt=661, chan_n=0, read_frames=0, skip_frames=0) at libs/ardour/audioregion.cc:508 #7 0x00007ffff7984f15 in ARDOUR::Crossfade::read_at (this=0x2b8a930, buf=0x7fffbde8e3cc, mixdown_buffer=0x7fffc62d8010, gain_buffer=0x7fffc6297010, start=10386467, cnt=19901, chan_n=0, read_frames=0, skip_frames=0) at libs/ardour/crossfade.cc:314 #8 0x00007ffff791340f in ARDOUR::AudioPlaylist::read (this=0x2b81080, buf=0x7fffbde61ac0, mixdown_buffer=0x7fffc62d8010, gain_buffer=0x7fffc6297010, start=10340832, cnt=65536, chan_n=0) at libs/ardour/audio_playlist.cc:203 #9 0x00007ffff78e7862 in ARDOUR::AudioDiskstream::read (this=0x2bc3340, buf=0x7fffbde61ac0, mixdown_buffer=0x7fffc62d8010, gain_buffer=0x7fffc6297010, start=@0x7fffc61bcc28, ---Type to continue, or q to quit--- cnt=65536, channel_info=0x2bc3690, channel=0, reversed=false) at libs/ardour/audio_diskstream.cc:1110 #10 0x00007ffff78e89d7 in ARDOUR::AudioDiskstream::_do_refill (this=0x2bc3340, mixdown_buffer=0x7fffc62d8010, gain_buffer=0x7fffc6297010) at libs/ardour/audio_diskstream.cc:1391 #11 0x00007ffff78f0bd1 in ARDOUR::AudioDiskstream::do_refill (this=0x2bc3340) at libs/ardour/ardour/audio_diskstream.h:219 #12 0x00007ffff7a3568e in ARDOUR::Session::butler_thread_work (this=0x22b9f60) at libs/ardour/session_butler.cc:267 #13 0x00007ffff7a35191 in ARDOUR::Session::_butler_thread_work (arg=0x22b9f60) at libs/ardour/session_butler.cc:159 #14 0x00007fffefa4b8ba in start_thread (arg=) at pthread_create.c:300 #15 0x00007fffef7b303d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #16 0x0000000000000000 in ?? () Thread 18 (Thread 0x7fffc6392830 (LWP 3754)): #0 0x00007fffefa53880 in __pause_nocancel () at ../sysdeps/unix/syscall-template.S:82 #1 0x00007fffefa4dcd5 in __pthread_mutex_lock_full (mutex=0x2488380) at pthread_mutex_lock.c:316 #2 0x00007ffff5860f78 in Glib::Mutex::lock (this=0x2ccedb8) at libs/glibmm2/glibmm/thread.cc:213 #3 0x00007ffff78dc764 in Lock (this=0x7fffc6391ce0, mutex=...) at libs/glibmm2/glibmm/thread.h:795 #4 0x00007ffff79c1b95 in ARDOUR::IO::meter (this=0x2ccecf0) at libs/ardour/io.cc:2536 #5 0x00007ffff79c8b87 in sigc::bound_mem_functor0::operator() (this=0x2cdd228) at libs/sigc++2/sigc++/functors/mem_fun.h:1787 #6 0x00007ffff79c8304 in sigc::adaptor_functor >::operator() (this=0x2cdd220) at libs/sigc++2/sigc++/adaptors/adaptor_trait.h:251 #7 0x00007ffff79c7713 in sigc::internal::slot_call0, void>::call_it (rep=0x2cdd1f0) at libs/sigc++2/sigc++/functors/slot.h:103 #8 0x000000000057ddca in sigc::signal0::operator()() const () #9 0x00007ffff79c1b35 in ARDOUR::IO::update_meters () at libs/ardour/io.cc:2530 #10 0x00007ffff78fd9ef in ARDOUR::AudioEngine::meter_thread (this=0x1ef97a0) at libs/ardour/audioengine.cc:476 #11 0x00007ffff7905e4d in sigc::bound_mem_functor0::operator() (this=0x22a2c58) at libs/sigc++2/sigc++/functors/mem_fun.h:1787 #12 0x00007ffff7905bc4 in sigc::adaptor_functor >::operator() (this=0x22a2c50) at libs/sigc++2/sigc++/adaptors/adaptor_trait.h:251 ---Type to continue, or q to quit--- #13 0x00007ffff790559f in sigc::internal::slot_call0, void>::call_it (rep=0x22a2c20) at libs/sigc++2/sigc++/functors/slot.h:103 #14 0x00007ffff793ed58 in sigc::slot0::operator() (this=0xd37420) at libs/sigc++2/sigc++/functors/slot.h:440 #15 0x00007ffff5860a2c in call_thread_entry_slot (data=0xd37420) at libs/glibmm2/glibmm/thread.cc:43 #16 0x00007ffff5ae56e4 in ?? () from /lib/libglib-2.0.so.0 #17 0x00007fffefa4b8ba in start_thread (arg=) at pthread_create.c:300 #18 0x00007fffef7b303d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #19 0x0000000000000000 in ?? () Thread 17 (Thread 0x7fffcc0be710 (LWP 3753)): #0 0x00007ffff79013e4 in ARDOUR::Port::get_buffer (this=0xbd815221bd7af2e2, nframes=1024) at libs/ardour/ardour/port.h:218 #1 0x00007ffff79c3177 in ARDOUR::IO::get_output_buffer (this=0x2bd6e40, n=0, nframes=1024) at libs/ardour/io.cc:2930 #2 0x00007ffff79b7c85 in ARDOUR::IO::pan (this=0x2bd6e40, bufs=..., nbufs=2, nframes=1024, gain_coeff=1) at libs/ardour/io.cc:432 #3 0x00007ffff7a1e4f9 in ARDOUR::Route::process_output_buffers (this=0x2bd6e40, bufs=..., nbufs=2, start_frame=10187232, end_frame=10188256, nframes=1024, with_redirects=true, declick=0, meter=true) at libs/ardour/route.cc:724 #4 0x00007ffff7a1e831 in ARDOUR::Route::passthru (this=0x2bd6e40, start_frame=10187232, end_frame=10188256, nframes=1024, declick=0, meter_first=true) at libs/ardour/route.cc:779 #5 0x00007ffff7a26920 in ARDOUR::Route::roll (this=0x2bd6e40, nframes=1024, start_frame=10187232, end_frame=10188256, declick=0, can_record=false, rec_monitors_input=false) at libs/ardour/route.cc:2421 #6 0x00007ffff7a9e45f in ARDOUR::Session::process_routes (this=0x22b9f60, nframes=1024) at libs/ardour/session_process.cc:142 #7 0x00007ffff7a9f079 in ARDOUR::Session::process_with_events (this=0x22b9f60, nframes=1024) at libs/ardour/session_process.cc:365 #8 0x00007ffff7a9de64 in ARDOUR::Session::process (this=0x22b9f60, nframes=1024) at libs/ardour/session_process.cc:61 #9 0x00007ffff78fd28d in ARDOUR::AudioEngine::process_callback (this=0x1ef97a0, nframes=1024) at libs/ardour/audioengine.cc:342 #10 0x00007ffff78fd076 in ARDOUR::AudioEngine::_process_callback (nframes=1024, arg=0x1ef97a0) at libs/ardour/audioengine.cc:289 ---Type to continue, or q to quit--- #11 0x00007ffff31ae198 in jack_client_thread () from /usr/lib/libjack.so.0 #12 0x00007fffefa4b8ba in start_thread (arg=) at pthread_create.c:300 #13 0x00007fffef7b303d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #14 0x0000000000000000 in ?? () Thread 16 (Thread 0x7fffcd120710 (LWP 3751)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162 #1 0x00007ffff31af47b in mb_thread_func () from /usr/lib/libjack.so.0 #2 0x00007fffefa4b8ba in start_thread (arg=) at pthread_create.c:300 #3 0x00007fffef7b303d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #4 0x0000000000000000 in ?? () Thread 14 (Thread 0x7fffc4ff9710 (LWP 3749)): #0 0x00007fffef7a8123 in *__GI___poll (fds=, nfds=, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87 #1 0x00007fffc43ddb1f in ?? () from /usr/lib/libpulse.so.0 #2 0x00007fffc43cdbb6 in pa_mainloop_poll () from /usr/lib/libpulse.so.0 #3 0x00007fffc43cef99 in pa_mainloop_iterate () from /usr/lib/libpulse.so.0 #4 0x00007fffc43cf050 in pa_mainloop_run () from /usr/lib/libpulse.so.0 #5 0x00007fffc43dd92b in ?? () from /usr/lib/libpulse.so.0 #6 0x00007fffc419b710 in ?? () from /usr/lib/libpulsecommon-0.9.21.so #7 0x00007fffefa4b8ba in start_thread (arg=) at pthread_create.c:300 #8 0x00007fffef7b303d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #9 0x0000000000000000 in ?? () ---Type to continue, or q to quit--- Thread 9 (Thread 0x7fffc6ffd710 (LWP 3743)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:211 #1 0x00007ffff5f64482 in ?? () from /usr/lib/libgthread-2.0.so.0 #2 0x00007ffff5a977a1 in ?? () from /lib/libglib-2.0.so.0 #3 0x00007ffff5a978e7 in g_async_queue_timed_pop () from /lib/libglib-2.0.so.0 #4 0x00007ffff5ae7498 in ?? () from /lib/libglib-2.0.so.0 #5 0x00007ffff5ae56e4 in ?? () from /lib/libglib-2.0.so.0 #6 0x00007fffefa4b8ba in start_thread (arg=) at pthread_create.c:300 #7 0x00007fffef7b303d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #8 0x0000000000000000 in ?? () Thread 4 (Thread 0x7fffe6c87710 (LWP 3738)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162 #1 0x00007ffff58614d1 in Glib::Cond::wait (this=0xe85b30, mutex=...) at libs/glibmm2/glibmm/thread.cc:362 #2 0x00007ffff78dc156 in ARDOUR::Analyser::work () at libs/ardour/analyser.cc:85 #3 0x00007ffff78dbdfd in analyser_work () at libs/ardour/analyser.cc:49 #4 0x00007ffff793ed58 in sigc::slot0::operator() (this=0xe85b90) at libs/sigc++2/sigc++/functors/slot.h:440 #5 0x00007ffff5860a2c in call_thread_entry_slot (data=0xe85b90) at libs/glibmm2/glibmm/thread.cc:43 #6 0x00007ffff5ae56e4 in ?? () from /lib/libglib-2.0.so.0 #7 0x00007fffefa4b8ba in start_thread (arg=) at pthread_create.c:300 #8 0x00007fffef7b303d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #9 0x0000000000000000 in ?? () Thread 3 (Thread 0x7fffe7488710 (LWP 3737)): ---Type to continue, or q to quit--- #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162 #1 0x00007ffff58614d1 in Glib::Cond::wait (this=0xe85520, mutex=...) at libs/glibmm2/glibmm/thread.cc:362 #2 0x00007ffff7ad4282 in peak_thread_work () at libs/ardour/source_factory.cc:65 #3 0x00007ffff793ed58 in sigc::slot0::operator() (this=0xe85930) at libs/sigc++2/sigc++/functors/slot.h:440 #4 0x00007ffff5860a2c in call_thread_entry_slot (data=0xe85930) at libs/glibmm2/glibmm/thread.cc:43 #5 0x00007ffff5ae56e4 in ?? () from /lib/libglib-2.0.so.0 #6 0x00007fffefa4b8ba in start_thread (arg=) at pthread_create.c:300 #7 0x00007fffef7b303d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #8 0x0000000000000000 in ?? () Thread 2 (Thread 0x7fffe7c89710 (LWP 3736)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162 #1 0x00007ffff58614d1 in Glib::Cond::wait (this=0xe85520, mutex=...) at libs/glibmm2/glibmm/thread.cc:362 #2 0x00007ffff7ad4282 in peak_thread_work () at libs/ardour/source_factory.cc:65 #3 0x00007ffff793ed58 in sigc::slot0::operator() (this=0xe85730) at libs/sigc++2/sigc++/functors/slot.h:440 #4 0x00007ffff5860a2c in call_thread_entry_slot (data=0xe85730) at libs/glibmm2/glibmm/thread.cc:43 #5 0x00007ffff5ae56e4 in ?? () from /lib/libglib-2.0.so.0 #6 0x00007fffefa4b8ba in start_thread (arg=) at pthread_create.c:300 #7 0x00007fffef7b303d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #8 0x0000000000000000 in ?? () Thread 1 (Thread 0x7ffff7fa57e0 (LWP 3733)): #0 0x00007fffef7a8123 in *__GI___poll (fds=, nfds=, timeout=38) at ../sysdeps/unix/sysv/linux/poll.c:87 #1 0x00007ffff5ac0299 in ?? () from /lib/libglib-2.0.so.0 ---Type to continue, or q to quit--- #2 0x00007ffff5ac0a45 in g_main_loop_run () from /lib/libglib-2.0.so.0 #3 0x00007ffff531c647 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0 #4 0x00007ffff396aa33 in Gtk::Main::run_impl (this=0xbee450) at libs/gtkmm2/gtk/gtkmm/main.cc:503 #5 0x00007ffff396a825 in Gtk::Main::run () at libs/gtkmm2/gtk/gtkmm/main.cc:450 #6 0x00007ffff34739ee in Gtkmm2ext::UI::run (this=0xbe8b60, old_receiver=...) at libs/gtkmm2ext/gtk_ui.cc:230 #7 0x000000000074aa5e in main () (gdb)