[timbyr@thinkpad-T420-1 master-debug-tests-internal-libs]$ ./gtk2_ardour/ardbg
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Reading symbols from ./gtk2_ardour/../build/gtk2_ardour/ardour-5.4.421...done.
(gdb) run
Starting program: /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/build/gtk2_ardour/ardour-5.4.421 
Missing separate debuginfos, use: dnf debuginfo-install glibc-2.23.1-10.fc24.x86_64
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
bind txt domain [gtk2_ardour5] to /usr/local/share/ardour5/locale
Ardour5.4.410 (built using 5.4-421-ge7243c0 and GCC version 6.2.1 20160916 (Red Hat 6.2.1-2))
ardour: [INFO]: Your system is configured to limit Ardour to only 4,096 open files
ardour: [INFO]: Loading system configuration file /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/system_config
ardour: [INFO]: Loading user configuration file /home/timbyr/.config/ardour5/config
[New Thread 0x7fffd887e700 (LWP 21355)]
ardour: [INFO]: CPU vendor: GenuineIntel
ardour: [INFO]: AVX-capable processor
ardour: [INFO]: CPU brand:       Intel(R) Core(TM) i7-2720QM CPU @ 2.20GHz
ardour: [INFO]: Using SSE optimized routines
[New Thread 0x7fffd807d700 (LWP 21356)]
[New Thread 0x7fffd787c700 (LWP 21357)]
[New Thread 0x7fffd707b700 (LWP 21358)]
[New Thread 0x7fffd4946700 (LWP 21359)]
[New Thread 0x7fffc7fff700 (LWP 21360)]
Cannot xinstall SIGPIPE error handler
ardour: [INFO]: Loading default ui configuration file /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/build/gtk2_ardour/default_ui_config
ardour: [INFO]: Loading user ui configuration file /home/timbyr/.config/ardour5/ui_config
[New Thread 0x7fffbf9a2700 (LWP 21361)]
[New Thread 0x7fffbf1a1700 (LWP 21362)]
[New Thread 0x7fffbe9a0700 (LWP 21363)]
[New Thread 0x7fffbe19f700 (LWP 21364)]
ardour: [INFO]: Loading color file /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/gtk2_ardour/themes/dark-ardour.colors
ardour: [INFO]: Loading ui configuration file /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/build/gtk2_ardour/clearlooks.rc
ardour: [INFO]: Loading ui configuration file /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/build/gtk2_ardour/clearlooks.rc
[New Thread 0x7fffbd6b2700 (LWP 21366)]
[New Thread 0x7fffbceb1700 (LWP 21367)]
[New Thread 0x7fffa3fff700 (LWP 21368)]
Found 8 along /home/timbyr/.config/ardour5/templates:./gtk2_ardour/../templates:./gtk2_ardour/../build/templates:./gtk2_ardour/../gtk2_ardour/templates:./gtk2_ardour/../build/gtk2_ardour/templates:./templates
run dialog
[Thread 0x7fffa3fff700 (LWP 21368) exited]
[Thread 0x7fffbceb1700 (LWP 21367) exited]
[Thread 0x7fffbd6b2700 (LWP 21366) exited]
[Thread 0x7fffbe9a0700 (LWP 21363) exited]
Detaching after vfork from child process 21370.
[New Thread 0x7fffbd6b2700 (LWP 21371)]
playback :
  nchan  : 4
  fsamp  : 44100
  fsize  : 1024
  nfrag  : 2
  format : S32_LE
capture  :
  nchan  : 2
  fsamp  : 44100
  fsize  : 1024
  nfrag  : 2
  format : S32_LE
synced
[New Thread 0x7fffd4033d80 (LWP 21372)]
[New Thread 0x7fffd401ad80 (LWP 21373)]
[New Thread 0x7fffc4022d80 (LWP 21374)]
protocol Open Sound Control (OSC) active ? 0
protocol PreSonus FaderPort active ? 0
protocol Generic MIDI active ? 0
protocol Mackie active ? 0
protocol Wiimote active ? 0
Scanning folders for bundled LV2s: ./gtk2_ardour/../build/libs/LV2
KP is /home/timbyr/.config/ardour5/ardour.keys
[New Thread 0x7fffbceb1700 (LWP 21375)]
[New Thread 0x7fffbe9a0700 (LWP 21376)]
Set cursor set to default
[New Thread 0x7fffa3fff700 (LWP 21377)]
[New Thread 0x7fffa37fe700 (LWP 21378)]
[New Thread 0x7fffbc405d80 (LWP 21379)]
[New Thread 0x7fffbc3ecd80 (LWP 21380)]
[New Thread 0x7fffbc3d3d80 (LWP 21381)]
[New Thread 0x7fffbc3bad80 (LWP 21382)]
[New Thread 0x7fffbc3a1d80 (LWP 21383)]
[New Thread 0x7fffbc388d80 (LWP 21384)]
[New Thread 0x7fffbc36fd80 (LWP 21385)]
Set buffering params to 262144|131072|10|10
[New Thread 0x7fffbc356800 (LWP 21386)]
[New Thread 0x7fffa2ffd700 (LWP 21387)]
protocol Open Sound Control (OSC) active ? 0
protocol PreSonus FaderPort active ? 0
protocol Generic MIDI active ? 0
protocol Mackie active ? 0
protocol Wiimote active ? 0
Set buffering params to 262144|131072|10|10
Skip explicit buffer seconds, preset in use
Skip explicit buffer seconds, preset in use
[Thread 0x7fffa3fff700 (LWP 21377) exited]
[Thread 0x7fffa37fe700 (LWP 21378) exited]
[Thread 0x7fffbe9a0700 (LWP 21376) exited]
[Thread 0x7fffbe19f700 (LWP 21364) exited]
actually writing state to /home/timbyr/Ardour-Sessions/test-5.4.410-bug7049/test-5.4.410-bug7049.tmp
renaming state to /home/timbyr/Ardour-Sessions/test-5.4.410-bug7049/test-5.4.410-bug7049.ardour
saved state in 4.6 ms
[New Thread 0x7fffa37fe700 (LWP 21399)]
[New Thread 0x7fffa3fff700 (LWP 21400)]
[New Thread 0x7fffbe9a0700 (LWP 21401)]
actually writing state to /home/timbyr/Ardour-Sessions/test-5.4.410-bug7049/test-5.4.410-bug7049.tmp
renaming state to /home/timbyr/Ardour-Sessions/test-5.4.410-bug7049/test-5.4.410-bug7049.pending
saved state in 5.9 ms
[Thread 0x7fffbceb1700 (LWP 21375) exited]
actually writing state to /home/timbyr/Ardour-Sessions/test-5.4.410-bug7049/test-5.4.410-bug7049.tmp
renaming state to /home/timbyr/Ardour-Sessions/test-5.4.410-bug7049/test-5.4.410-bug7049.ardour
saved state in 9.7 ms
actually writing state to /home/timbyr/Ardour-Sessions/test-5.4.410-bug7049/test-5.4.410-bug7049.tmp
renaming state to /home/timbyr/Ardour-Sessions/test-5.4.410-bug7049/test-5.4.410-bug7049.pending
saved state in 14.6 ms

Thread 1 "ardour-5.4.421" received signal SIGSEGV, Segmentation fault.
0x00007ffff751522f in std::_List_iterator<PBD::EventLoop::BaseRequestObject*>::operator++ (this=0x7fffffffc340) at /usr/include/c++/6.2.1/bits/stl_list.h:162
162		_M_node = _M_node->_M_next;
Missing separate debuginfos, use: dnf debuginfo-install GConf2-3.2.6-16.fc24.x86_64 PackageKit-gtk3-module-1.1.3-2.fc24.x86_64 adwaita-gtk2-theme-3.20.2-1.fc24.x86_64 alsa-lib-1.1.1-1.fc24.x86_64 atk-2.20.0-1.fc24.x86_64 atkmm-2.24.2-2.fc24.x86_64 aubio-0.4.2-2.fc24.x86_64 bluez-libs-5.41-1.fc24.x86_64 bzip2-libs-1.0.6-20.fc24.x86_64 cairo-1.14.6-2.fc24.x86_64 cairomm-1.12.0-2.fc24.x86_64 cwiid-0.6.00-27.20100505gitfadf11e.fc24.x86_64 cyrus-sasl-lib-2.1.26-26.2.fc24.x86_64 dbus-glib-0.108-1.fc24.x86_64 dbus-libs-1.11.4-1.fc24.x86_64 dconf-0.26.0-1.fc24.x86_64 expat-2.1.1-2.fc24.x86_64 fftw-libs-double-3.3.4-7.fc24.x86_64 fftw-libs-single-3.3.4-7.fc24.x86_64 flac-libs-1.3.1-6.fc24.x86_64 fontconfig-2.11.94-7.fc24.x86_64 freetype-2.6.3-2.fc24.x86_64 gdk-pixbuf2-2.34.0-1.fc24.x86_64 glib-networking-2.48.2-1.fc24.x86_64 glib2-2.48.2-1.fc24.x86_64 glibmm24-2.48.1-1.fc24.x86_64 gmp-6.1.1-1.fc24.x86_64 gnutls-3.4.15-1.fc24.x86_64 graphite2-1.3.6-1.fc24.x86_64 gsm-1.0.13-14.fc24.x86_64 gtk2-2.24.31-1.fc24.x86_64 gtkmm24-2.24.4-9.fc24.x86_64 gvfs-client-1.28.3-1.fc24.x86_64 harfbuzz-1.2.7-1.fc24.x86_64 ibus-gtk2-1.5.13-3.fc24.x86_64 ibus-libs-1.5.13-3.fc24.x86_64 jack-audio-connection-kit-1.9.10-5.fc24.x86_64 keyutils-libs-1.5.9-8.fc24.x86_64 krb5-libs-1.14.4-4.fc24.x86_64 ladspa-1.13-16.fc24.x86_64 libX11-1.6.3-3.fc24.x86_64 libXau-1.0.8-6.fc24.x86_64 libXcomposite-0.4.4-8.fc24.x86_64 libXcursor-1.1.14-6.fc24.x86_64 libXdamage-1.1.4-8.fc24.x86_64 libXext-1.3.3-4.fc24.x86_64 libXfixes-5.0.3-1.fc24.x86_64 libXi-1.7.7-1.fc24.x86_64 libXinerama-1.1.3-6.fc24.x86_64 libXrandr-1.5.1-1.fc24.x86_64 libXrender-0.9.10-1.fc24.x86_64 libXxf86vm-1.1.4-3.fc24.x86_64 libacl-2.2.52-11.fc24.x86_64 libarchive-3.2.1-3.fc24.x86_64 libattr-2.4.47-16.fc24.x86_64 libcanberra-0.30-11.fc24.x86_64 libcanberra-gtk2-0.30-11.fc24.x86_64 libcap-2.24-9.fc24.x86_64 libcom_err-1.42.13-4.fc24.x86_64 libcurl-7.47.1-8.fc24.x86_64 libdatrie-0.2.9-3.fc24.x86_64 libdrm-2.4.71-2.fc24.x86_64 libffi-3.1-9.fc24.x86_64 libgcc-6.2.1-2.fc24.x86_64 libgcrypt-1.6.6-1.fc24.x86_64 libgpg-error-1.24-1.fc24.x86_64 libicu-56.1-4.fc24.x86_64 libidn-1.33-1.fc24.x86_64 liblo-0.28-2.fc24.x86_64 liblrdf-0.5.0-10.fc24.x86_64 libmodman-2.0.1-12.fc24.x86_64 libnghttp2-1.7.1-1.fc24.x86_64 libogg-1.3.2-5.fc24.x86_64 libpng-1.6.23-1.fc24.x86_64 libproxy-0.4.12-3.fc24.x86_64 libpsl-0.13.0-2.fc24.x86_64 libsamplerate-0.1.8-10.fc24.x86_64 libselinux-2.5-9.fc24.x86_64 libsigc++20-2.8.0-1.fc24.x86_64 libsndfile-1.0.25-20.fc24.x86_64 libssh2-1.7.0-5.fc24.x86_64 libstdc++-6.2.1-2.fc24.x86_64 libtasn1-4.9-1.fc24.x86_64 libtdb-1.3.9-1.fc24.x86_64 libthai-0.1.24-1.fc24.x86_64 libtool-ltdl-2.4.6-12.fc24.x86_64 libunistring-0.9.4-3.fc24.x86_64 libvorbis-1.3.4-6.fc24.x86_64 libwayland-client-1.10.0-1.fc24.x86_64 libwayland-server-1.10.0-1.fc24.x86_64 libxcb-1.11.1-2.fc24.x86_64 libxml2-2.9.3-3.fc24.x86_64 libxshmfence-1.2-3.fc24.x86_64 libxslt-1.1.28-12.fc24.x86_64 lilv-0.20.0-5.fc24.x86_64 lz4-r131-2.fc24.x86_64 lzo-2.08-8.fc24.x86_64 mesa-libEGL-12.0.3-1.fc24.x86_64 mesa-libGL-12.0.3-1.fc24.x86_64 mesa-libgbm-12.0.3-1.fc24.x86_64 mesa-libglapi-12.0.3-1.fc24.x86_64 nettle-3.2-3.fc24.x86_64 nspr-4.13.0-1.fc24.x86_64 nss-3.27.0-1.1.fc24.x86_64 nss-softokn-freebl-3.27.0-1.0.fc24.x86_64 nss-util-3.27.0-1.0.fc24.x86_64 openldap-2.4.44-1.fc24.x86_64 openssl-libs-1.0.2j-1.fc24.x86_64 opus-1.1.2-2.fc24.x86_64 p11-kit-0.23.2-2.fc24.x86_64 pango-1.40.3-1.fc24.x86_64 pangomm-2.40.0-1.fc24.x86_64 pcre-8.39-3.fc24.x86_64 pixman-0.34.0-2.fc24.x86_64 raptor2-2.0.15-6.fc24.x86_64 rubberband-1.8.1-8.fc24.x86_64 serd-0.20.0-3.fc24.x86_64 sord-0.12.2-8.fc24.x86_64 sratom-0.4.6-4.fc24.x86_64 suil-0.8.2-4.fc24.x86_64 systemd-libs-229-16.fc24.x86_64 taglib-1.11-1.fc24.x86_64 vamp-plugin-sdk-2.5-8.fc24.x86_64 xz-libs-5.2.2-2.fc24.x86_64 yajl-2.1.0-5.fc24.x86_64 zlib-1.2.8-10.fc24.x86_64
(gdb) t a a bt

Thread 34 (Thread 0x7fffbe9a0700 (LWP 21401)):
#0  0x00007fffef8554ad in nanosleep () at /lib64/libpthread.so.0
#1  0x00007ffff38f03d8 in g_usleep () at /lib64/libglib-2.0.so.0
#2  0x00007ffff6386286 in ARDOUR::AutomationWatch::thread() (this=0x632bc00) at ../libs/ardour/automation_watch.cc:153
#3  0x00007ffff6389723 in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator()(ARDOUR::AutomationWatch*) const (this=0x5d5c910, p=0x632bc00) at /usr/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff63893a0 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=0x5d5c920, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#5  0x00007ffff6388e71 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator()() (this=0x5d5c910)
    at /usr/include/boost/bind/bind.hpp:1222
#6  0x00007ffff6388dfe 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=0x5d5c910) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff63888d4 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=0x5d5c8e0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:115
#8  0x00007ffff3e2c3bd in call_thread_entry_slot () at /lib64/libglibmm-2.4.so.1
#9  0x00007ffff38eecf5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#10 0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#11 0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 33 (Thread 0x7fffa3fff700 (LWP 21400)):
#0  0x00007fffef851bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ffff6850c64 in ARDOUR::Session::auto_connect_thread_run() (this=0x2a21a00) at ../libs/ardour/session.cc:7094
#2  0x00007ffff68509cc in ARDOUR::Session::auto_connect_thread(void*) (arg=0x2a21a00) at ../libs/ardour/session.cc:7046
#3  0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#4  0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 32 (Thread 0x7fffa37fe700 (LWP 21399)):
#0  0x00007fffef851bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ffff68c3a5f in ARDOUR::Session::emit_thread_run() (this=0x2a21a00) at ../libs/ardour/session_process.cc:1316
#2  0x00007ffff68c39fc in ARDOUR::Session::emit_thread(void*) (arg=0x2a21a00) at ../libs/ardour/session_process.cc:1305
#3  0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#4  0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 31 (Thread 0x7fffa2ffd700 (LWP 21387)):
#0  0x00007fffec5b73ed in poll () at /lib64/libc.so.6
#1  0x00007ffff38c8a06 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007ffff38c8d92 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#3  0x00007ffff4a9402d in BaseUI::main_thread() (this=0x43cdff0) at ../libs/pbd/base_ui.cc:86
#4  0x00007ffff4a981da in sigc::bound_mem_functor0<void, BaseUI>::operator()() const (this=0x43ce6b8) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1989
#5  0x00007ffff4a97e1a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator()() const (this=0x43ce6b0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff4a9785b in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it(sigc::internal::slot_rep*) (rep=0x43ce680) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:115
#7  0x00007ffff3e2c3bd in call_thread_entry_slot () at /lib64/libglibmm-2.4.so.1
#8  0x00007ffff38eecf5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#9  0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#10 0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 30 (Thread 0x7fffbc356800 (LWP 21386)):
#0  0x00007fffec5bd0b9 in syscall () at /lib64/libc.so.6
#1  0x00007ffff390c19c in g_mutex_lock_slowpath () at /lib64/libglib-2.0.so.0
#2  0x00000000012d6428 in Glib::Threads::Mutex::Lock::Lock(Glib::Threads::Mutex&) (this=0x7fffbc353c00, mutex=...) at /usr/include/glibmm-2.4/glibmm/threads.h:688
#3  0x00007ffff7510d3b in AbstractUI<Gtkmm2ext::UIRequest>::send_request(Gtkmm2ext::UIRequest*) (this=0x2650110, req=0x7fff7405a470)
    at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/libs/pbd/pbd/abstract_ui.cc:393
#4  0x00007ffff750eea4 in AbstractUI<Gtkmm2ext::UIRequest>::call_slot(PBD::EventLoop::InvalidationRecord*, boost::function<void ()> const&) (this=0x2650110, invalidation=0x29f45c0, f=...)
---Type <return> to continue, or q <return> to quit---
    at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/libs/pbd/pbd/abstract_ui.cc:441
#5  0x00000000015f3e17 in PBD::Signal2<void, boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&, PBD::OptionalLastValue<void> >::compositor(boost::function<void (boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&) (f=..., event_loop=0x2650110, ir=0x29f45c0, a1=..., a2=...)
    at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/build/libs/pbd/pbd/signals_generated.h:956
#6  0x00000000015fff31 in boost::_bi::list5<boost::_bi::value<boost::function<void (boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::arg<1>, boost::arg<2> >::operator()<void (*)(boost::function<void (boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&), boost::_bi::rrlist2<boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&> >(boost::_bi::type<void>, void (*&)(boost::function<void (boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&), boost::_bi::rrlist2<boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&>&, int) (this=0x7fff74059c48, f=
    @0x7fff74059c40: 0x15f3d3f <PBD::Signal2<void, boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&, PBD::OptionalLastValue<void> >::compositor(boost::function<void (boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&)>, a=...) at /usr/include/boost/bind/bind.hpp:531
#7  0x00000000015fe02e in boost::_bi::bind_t<void, void (*)(boost::function<void (boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&), boost::_bi::list5<boost::_bi::value<boost::function<void (boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::arg<1>, boost::arg<2> > >::operator()<boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&>(boost::shared_ptr<ARDOUR::Region>&&, PBD::PropertyChange const&) (this=
    0x7fff74059c40, a1=<unknown type in /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/build/gtk2_ardour/ardour-5.4.421, CU 0x12e309e, DIE 0x134512d>, a2=...)
    at /usr/include/boost/bind/bind.hpp:1246
#8  0x00000000015fb9a8 in boost::detail::function::void_function_obj_invoker2<boost::_bi::bind_t<void, void (*)(boost::function<void (boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&), boost::_bi::list5<boost::_bi::value<boost::function<void (boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::arg<1>, boost::arg<2> > >, void, boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&>::invoke(boost::detail::function::function_buffer&, boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&) (function_obj_ptr=..., a0=..., a1=...)
    at /usr/include/boost/function/function_template.hpp:159
#9  0x0000000001601dad in boost::function2<void, boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&>::operator()(boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&) const (this=0x7fff74059c10, a0=..., a1=...) at /usr/include/boost/function/function_template.hpp:771
#10 0x00007ffff67d2eaa in PBD::Signal2<void, boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&, PBD::OptionalLastValue<void> >::operator()(boost::shared_ptr<ARDOUR::Region>, PBD::PropertyChange const&) (this=0x254db60 <ARDOUR::Region::RegionPropertyChanged>, a1=..., a2=...)
    at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/build/libs/pbd/pbd/signals_generated.h:1065
#11 0x00007ffff67cf56c in ARDOUR::Region::send_change(PBD::PropertyChange const&) (this=0x7fff740589e0, what_changed=...) at ../libs/ardour/region.cc:1387
#12 0x00007ffff4ad6f09 in PBD::Stateful::apply_changes(PBD::PropertyList const&) (this=0x7fff74058a10, property_list=...) at ../libs/pbd/stateful.cc:257
#13 0x00007ffff67b9563 in ARDOUR::RegionFactory::create(std::vector<boost::shared_ptr<ARDOUR::Source>, std::allocator<boost::shared_ptr<ARDOUR::Source> > > const&, PBD::PropertyList const&, bool) (srcs=std::vector of length 1, capacity 1 = {...}, plist=..., announce=true) at ../libs/ardour/region_factory.cc:254
#14 0x00007ffff667d752 in ARDOUR::MidiDiskstream::transport_stopped_wallclock(tm&, long, bool) (this=0x443f000, abort_capture=false) at ../libs/ardour/midi_diskstream.cc:1013
#15 0x00007ffff6979862 in ARDOUR::Track::transport_stopped_wallclock(tm&, long, bool) (this=0x44093a0, n=..., t=1479772898, g=false) at ../libs/ardour/track.cc:713
#16 0x00007ffff69218c7 in ARDOUR::Session::non_realtime_stop(bool, int, bool&) (this=0x2a21a00, abort=false, on_entry=1, finished=@0x7fffbc35506f: true) at ../libs/ardour/session_transport.cc:705
#17 0x00007ffff6920991 in ARDOUR::Session::butler_transport_work() (this=0x2a21a00) at ../libs/ardour/session_transport.cc:449
#18 0x00007ffff63999df in ARDOUR::Butler::thread_work() (this=0x2a1aeb0) at ../libs/ardour/butler.cc:208
#19 0x00007ffff639929f in ARDOUR::Butler::_thread_work(void*) (arg=0x2a1aeb0) at ../libs/ardour/butler.cc:156
#20 0x00007ffff4acb56e in fake_thread_start(void*) (arg=0x43cdda0) at ../libs/pbd/pthread_utils.cc:101
#21 0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#22 0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 29 (Thread 0x7fffbc36fd80 (LWP 21385)):
#0  0x00007fffef8540c7 in do_futex_wait.constprop () at /lib64/libpthread.so.0
#1  0x00007fffef854174 in __new_sem_wait_slow.constprop.0 () at /lib64/libpthread.so.0
#2  0x00007fffef85421a in sem_wait@@GLIBC_2.2.5 () at /lib64/libpthread.so.0
#3  0x00007ffff648c864 in PBD::Semaphore::wait() (this=0x37d9708) at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/libs/pbd/pbd/semutils.h:61
#4  0x00007ffff648aa10 in ARDOUR::Graph::run_one() (this=0x37d9630) at ../libs/ardour/graph.cc:387
#5  0x00007ffff648adce in ARDOUR::Graph::helper_thread() (this=0x37d9630) at ../libs/ardour/graph.cc:418
#6  0x00007ffff6491381 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffbc36f2d8, p=0x37d9630) at /usr/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6490ada 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=0x7fffbc36f2e8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#8  0x00007ffff648ff5d in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffbc36f2d8)
    at /usr/include/boost/bind/bind.hpp:1222
---Type <return> to continue, or q <return> to quit---
#9  0x00007ffff648f7f7 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:159
#10 0x000000000132eab8 in boost::function0<void>::operator()() const (this=0x7fffbc36f2d0) at /usr/include/boost/function/function_template.hpp:771
#11 0x00007fffc66f8a64 in ARDOUR::AlsaAudioBackend::alsa_process_thread(void*) (arg=0x4f49220) at ../libs/backends/alsa/alsa_audiobackend.cc:1109
#12 0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#13 0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 28 (Thread 0x7fffbc388d80 (LWP 21384)):
#0  0x00007fffef8540c7 in do_futex_wait.constprop () at /lib64/libpthread.so.0
#1  0x00007fffef854174 in __new_sem_wait_slow.constprop.0 () at /lib64/libpthread.so.0
#2  0x00007fffef85421a in sem_wait@@GLIBC_2.2.5 () at /lib64/libpthread.so.0
#3  0x00007ffff648c864 in PBD::Semaphore::wait() (this=0x37d9708) at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/libs/pbd/pbd/semutils.h:61
#4  0x00007ffff648aa10 in ARDOUR::Graph::run_one() (this=0x37d9630) at ../libs/ardour/graph.cc:387
#5  0x00007ffff648adce in ARDOUR::Graph::helper_thread() (this=0x37d9630) at ../libs/ardour/graph.cc:418
#6  0x00007ffff6491381 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffbc3882d8, p=0x37d9630) at /usr/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6490ada 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=0x7fffbc3882e8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#8  0x00007ffff648ff5d in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffbc3882d8)
    at /usr/include/boost/bind/bind.hpp:1222
#9  0x00007ffff648f7f7 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:159
#10 0x000000000132eab8 in boost::function0<void>::operator()() const (this=0x7fffbc3882d0) at /usr/include/boost/function/function_template.hpp:771
#11 0x00007fffc66f8a64 in ARDOUR::AlsaAudioBackend::alsa_process_thread(void*) (arg=0x4f49220) at ../libs/backends/alsa/alsa_audiobackend.cc:1109
#12 0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#13 0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 27 (Thread 0x7fffbc3a1d80 (LWP 21383)):
#0  0x00007fffef8540c7 in do_futex_wait.constprop () at /lib64/libpthread.so.0
#1  0x00007fffef854174 in __new_sem_wait_slow.constprop.0 () at /lib64/libpthread.so.0
#2  0x00007fffef85421a in sem_wait@@GLIBC_2.2.5 () at /lib64/libpthread.so.0
#3  0x00007ffff648c864 in PBD::Semaphore::wait() (this=0x37d9708) at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/libs/pbd/pbd/semutils.h:61
#4  0x00007ffff648aa10 in ARDOUR::Graph::run_one() (this=0x37d9630) at ../libs/ardour/graph.cc:387
#5  0x00007ffff648adce in ARDOUR::Graph::helper_thread() (this=0x37d9630) at ../libs/ardour/graph.cc:418
#6  0x00007ffff6491381 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffbc3a12d8, p=0x37d9630) at /usr/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6490ada 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=0x7fffbc3a12e8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#8  0x00007ffff648ff5d in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffbc3a12d8)
    at /usr/include/boost/bind/bind.hpp:1222
#9  0x00007ffff648f7f7 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:159
#10 0x000000000132eab8 in boost::function0<void>::operator()() const (this=0x7fffbc3a12d0) at /usr/include/boost/function/function_template.hpp:771
#11 0x00007fffc66f8a64 in ARDOUR::AlsaAudioBackend::alsa_process_thread(void*) (arg=0x4f49220) at ../libs/backends/alsa/alsa_audiobackend.cc:1109
#12 0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#13 0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 26 (Thread 0x7fffbc3bad80 (LWP 21382)):
#0  0x00007fffef8540c7 in do_futex_wait.constprop () at /lib64/libpthread.so.0
#1  0x00007fffef854174 in __new_sem_wait_slow.constprop.0 () at /lib64/libpthread.so.0
#2  0x00007fffef85421a in sem_wait@@GLIBC_2.2.5 () at /lib64/libpthread.so.0
#3  0x00007ffff648c864 in PBD::Semaphore::wait() (this=0x37d9708) at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/libs/pbd/pbd/semutils.h:61
#4  0x00007ffff648aa10 in ARDOUR::Graph::run_one() (this=0x37d9630) at ../libs/ardour/graph.cc:387
#5  0x00007ffff648adce in ARDOUR::Graph::helper_thread() (this=0x37d9630) at ../libs/ardour/graph.cc:418
#6  0x00007ffff6491381 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffbc3ba2d8, p=0x37d9630) at /usr/include/boost/bind/mem_fn_template.hpp:49
---Type <return> to continue, or q <return> to quit---
#7  0x00007ffff6490ada 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=0x7fffbc3ba2e8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#8  0x00007ffff648ff5d in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffbc3ba2d8)
    at /usr/include/boost/bind/bind.hpp:1222
#9  0x00007ffff648f7f7 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:159
#10 0x000000000132eab8 in boost::function0<void>::operator()() const (this=0x7fffbc3ba2d0) at /usr/include/boost/function/function_template.hpp:771
#11 0x00007fffc66f8a64 in ARDOUR::AlsaAudioBackend::alsa_process_thread(void*) (arg=0x352fb10) at ../libs/backends/alsa/alsa_audiobackend.cc:1109
#12 0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#13 0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 25 (Thread 0x7fffbc3d3d80 (LWP 21381)):
#0  0x00007fffef8540c7 in do_futex_wait.constprop () at /lib64/libpthread.so.0
#1  0x00007fffef854174 in __new_sem_wait_slow.constprop.0 () at /lib64/libpthread.so.0
#2  0x00007fffef85421a in sem_wait@@GLIBC_2.2.5 () at /lib64/libpthread.so.0
#3  0x00007ffff648c864 in PBD::Semaphore::wait() (this=0x37d9708) at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/libs/pbd/pbd/semutils.h:61
#4  0x00007ffff648aa10 in ARDOUR::Graph::run_one() (this=0x37d9630) at ../libs/ardour/graph.cc:387
#5  0x00007ffff648adce in ARDOUR::Graph::helper_thread() (this=0x37d9630) at ../libs/ardour/graph.cc:418
#6  0x00007ffff6491381 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffbc3d32d8, p=0x37d9630) at /usr/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6490ada 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=0x7fffbc3d32e8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#8  0x00007ffff648ff5d in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffbc3d32d8)
    at /usr/include/boost/bind/bind.hpp:1222
#9  0x00007ffff648f7f7 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:159
#10 0x000000000132eab8 in boost::function0<void>::operator()() const (this=0x7fffbc3d32d0) at /usr/include/boost/function/function_template.hpp:771
#11 0x00007fffc66f8a64 in ARDOUR::AlsaAudioBackend::alsa_process_thread(void*) (arg=0x4f49220) at ../libs/backends/alsa/alsa_audiobackend.cc:1109
#12 0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#13 0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7fffbc3ecd80 (LWP 21380)):
#0  0x00007fffef8540c7 in do_futex_wait.constprop () at /lib64/libpthread.so.0
#1  0x00007fffef854174 in __new_sem_wait_slow.constprop.0 () at /lib64/libpthread.so.0
#2  0x00007fffef85421a in sem_wait@@GLIBC_2.2.5 () at /lib64/libpthread.so.0
#3  0x00007ffff648c864 in PBD::Semaphore::wait() (this=0x37d9708) at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/libs/pbd/pbd/semutils.h:61
#4  0x00007ffff648aa10 in ARDOUR::Graph::run_one() (this=0x37d9630) at ../libs/ardour/graph.cc:387
#5  0x00007ffff648adce in ARDOUR::Graph::helper_thread() (this=0x37d9630) at ../libs/ardour/graph.cc:418
#6  0x00007ffff6491381 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffbc3ec2d8, p=0x37d9630) at /usr/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6490ada 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=0x7fffbc3ec2e8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#8  0x00007ffff648ff5d in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffbc3ec2d8)
    at /usr/include/boost/bind/bind.hpp:1222
#9  0x00007ffff648f7f7 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:159
#10 0x000000000132eab8 in boost::function0<void>::operator()() const (this=0x7fffbc3ec2d0) at /usr/include/boost/function/function_template.hpp:771
#11 0x00007fffc66f8a64 in ARDOUR::AlsaAudioBackend::alsa_process_thread(void*) (arg=0x352fb10) at ../libs/backends/alsa/alsa_audiobackend.cc:1109
#12 0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#13 0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7fffbc405d80 (LWP 21379)):
#0  0x00007fffef8540c7 in do_futex_wait.constprop () at /lib64/libpthread.so.0
#1  0x00007fffef854174 in __new_sem_wait_slow.constprop.0 () at /lib64/libpthread.so.0
#2  0x00007fffef85421a in sem_wait@@GLIBC_2.2.5 () at /lib64/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
#3  0x00007ffff648c864 in PBD::Semaphore::wait() (this=0x37d9728) at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/libs/pbd/pbd/semutils.h:61
#4  0x00007ffff6489ec6 in ARDOUR::Graph::restart_cycle() (this=0x37d9630) at ../libs/ardour/graph.cc:261
#5  0x00007ffff6489e93 in ARDOUR::Graph::dec_ref() (this=0x37d9630) at ../libs/ardour/graph.cc:248
#6  0x00007ffff6491b54 in ARDOUR::GraphNode::finish(int) (this=0x43d1c18, chain=1) at ../libs/ardour/graphnode.cc:71
#7  0x00007ffff648abba in ARDOUR::Graph::run_one() (this=0x37d9630) at ../libs/ardour/graph.cc:401
#8  0x00007ffff648b0a3 in ARDOUR::Graph::main_thread() (this=0x37d9630) at ../libs/ardour/graph.cc:457
#9  0x00007ffff6491381 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffbc4052d8, p=0x37d9630) at /usr/include/boost/bind/mem_fn_template.hpp:49
#10 0x00007ffff6490ada 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=0x7fffbc4052e8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#11 0x00007ffff648ff5d in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffbc4052d8)
    at /usr/include/boost/bind/bind.hpp:1222
#12 0x00007ffff648f7f7 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:159
#13 0x000000000132eab8 in boost::function0<void>::operator()() const (this=0x7fffbc4052d0) at /usr/include/boost/function/function_template.hpp:771
#14 0x00007fffc66f8a64 in ARDOUR::AlsaAudioBackend::alsa_process_thread(void*) (arg=0x352fb10) at ../libs/backends/alsa/alsa_audiobackend.cc:1109
#15 0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#16 0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7fffc4022d80 (LWP 21374)):
#0  0x00007fffec5b74b1 in ppoll () at /lib64/libc.so.6
#1  0x00007fffc671ef92 in Alsa_pcmi::pcm_wait() (this=0x2c52000) at ../libs/backends/alsa/zita-alsa-pcmi.cc:184
#2  0x00007fffc66fc3a9 in ARDOUR::AlsaAudioBackend::main_process_thread() (this=0x288f780) at ../libs/backends/alsa/alsa_audiobackend.cc:1890
#3  0x00007fffc66f72bd in pthread_process(void*) (arg=0x288f780) at ../libs/backends/alsa/alsa_audiobackend.cc:794
#4  0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#5  0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7fffd401ad80 (LWP 21373)):
#0  0x00007fffec5b73ed in poll () at /lib64/libc.so.6
#1  0x00007fffc671c83e in ARDOUR::AlsaRawMidiIn::main_process_thread() (this=0x2c74400) at ../libs/backends/alsa/alsa_rawmidi.cc:246
#2  0x00007fffc671a4ea in pthread_process(void*) (arg=0x2c74858) at ../libs/backends/alsa/alsa_midi.cc:67
#3  0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#4  0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7fffd4033d80 (LWP 21372)):
#0  0x00007fffef851bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fffc671c17a in ARDOUR::AlsaRawMidiOut::main_process_thread() (this=0x291a400) at ../libs/backends/alsa/alsa_rawmidi.cc:153
#2  0x00007fffc671a4ea in pthread_process(void*) (arg=0x291a418) at ../libs/backends/alsa/alsa_midi.cc:67
#3  0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#4  0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7fffbd6b2700 (LWP 21371)):
#0  0x00007fffec5b91c3 in select () at /lib64/libc.so.6
#1  0x00007ffff4ade48e in PBD::SystemExec::output_interposer() (this=0x2c50470) at ../libs/pbd/system_exec.cc:926
#2  0x00007ffff4add6f9 in interposer_thread(void*) (arg=0x2c50470) at ../libs/pbd/system_exec.cc:333
#3  0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#4  0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7fffbf1a1700 (LWP 21362)):
#0  0x00007fffec5b73ed in poll () at /lib64/libc.so.6
#1  0x00007ffff38c8a06 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007ffff38c8d92 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#3  0x00007ffff1f0be46 in gdbus_shared_thread_func () at /lib64/libgio-2.0.so.0
#4  0x00007ffff38eecf5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#5  0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#6  0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7fffbf9a2700 (LWP 21361)):
#0  0x00007fffec5b73ed in poll () at /lib64/libc.so.6
#1  0x00007ffff38c8a06 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007ffff38c8b1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007ffff38c8b61 in glib_worker_main () at /lib64/libglib-2.0.so.0
#4  0x00007ffff38eecf5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#5  0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#6  0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7fffc7fff700 (LWP 21360)):
#0  0x00007fffec5bd0b9 in syscall () at /lib64/libc.so.6
#1  0x00007ffff390cb6f in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007ffff6330784 in ARDOUR::AudioEngine::do_devicelist_update() (this=0x26909c0) at ../libs/ardour/audioengine.cc:560
#3  0x00007ffff633bd97 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator()(ARDOUR::AudioEngine*) const (this=0x2649bc0, p=0x26909c0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff633b7c6 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=0x2649bd0, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#5  0x00007ffff633af03 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator()() (this=0x2649bc0)
    at /usr/include/boost/bind/bind.hpp:1222
#6  0x00007ffff633a768 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=0x2649bc0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff63399c8 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=0x2649b90) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:115
#8  0x00007ffff3e2c3bd in call_thread_entry_slot () at /lib64/libglibmm-2.4.so.1
#9  0x00007ffff38eecf5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#10 0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#11 0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7fffd4946700 (LWP 21359)):
#0  0x00007fffec5bd0b9 in syscall () at /lib64/libc.so.6
#1  0x00007ffff390cb6f in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007ffff633055e in ARDOUR::AudioEngine::do_reset_backend() (this=0x26909c0) at ../libs/ardour/audioengine.cc:525
#3  0x00007ffff633bd97 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator()(ARDOUR::AudioEngine*) const (this=0x2649c10, p=0x26909c0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff633b7c6 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=0x2649c20, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
#5  0x00007ffff633af03 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator()() (this=0x2649c10)
    at /usr/include/boost/bind/bind.hpp:1222
#6  0x00007ffff633a768 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=0x2649c10) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff63399c8 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=0x2649be0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:115
#8  0x00007ffff3e2c3bd in call_thread_entry_slot () at /lib64/libglibmm-2.4.so.1
#9  0x00007ffff38eecf5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#10 0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#11 0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fffd707b700 (LWP 21358)):
#0  0x00007fffec5bd0b9 in syscall () at /lib64/libc.so.6
#1  0x00007ffff390cb6f in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007ffff62cab02 in ARDOUR::Analyser::work() () at ../libs/ardour/analyser.cc:87
#3  0x00007ffff62ca8ee in analyser_work() () at ../libs/ardour/analyser.cc:52
---Type <return> to continue, or q <return> to quit---
#4  0x0000000001a64325 in sigc::pointer_functor0<void>::operator()() const (this=0x2613ef8) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#5  0x0000000001a616ca in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x2613ef0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x0000000001a5d5cd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x2613ec0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:115
#7  0x00007ffff3e2c3bd in call_thread_entry_slot () at /lib64/libglibmm-2.4.so.1
#8  0x00007ffff38eecf5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#9  0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#10 0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7fffd787c700 (LWP 21357)):
#0  0x00007fffec5bd0b9 in syscall () at /lib64/libc.so.6
#1  0x00007ffff390cb6f in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007ffff6949990 in peak_thread_work() () at ../libs/ardour/source_factory.cc:71
#3  0x0000000001a64325 in sigc::pointer_functor0<void>::operator()() const (this=0x26959c8) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x0000000001a616ca in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x26959c0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x0000000001a5d5cd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x2695990) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:115
#6  0x00007ffff3e2c3bd in call_thread_entry_slot () at /lib64/libglibmm-2.4.so.1
#7  0x00007ffff38eecf5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fffd807d700 (LWP 21356)):
#0  0x00007fffec5bd0b9 in syscall () at /lib64/libc.so.6
#1  0x00007ffff390cb6f in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007ffff6949990 in peak_thread_work() () at ../libs/ardour/source_factory.cc:71
#3  0x0000000001a64325 in sigc::pointer_functor0<void>::operator()() const (this=0x26126a8) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x0000000001a616ca in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x26126a0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x0000000001a5d5cd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x2612670) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:115
#6  0x00007ffff3e2c3bd in call_thread_entry_slot () at /lib64/libglibmm-2.4.so.1
#7  0x00007ffff38eecf5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fffd887e700 (LWP 21355)):
#0  0x00007fffef8554ad in nanosleep () at /lib64/libpthread.so.0
#1  0x00007ffff38f03d8 in g_usleep () at /lib64/libglib-2.0.so.0
#2  0x0000000001d67a05 in gui_event_loop(void*) (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:452
#3  0x00007fffef84c5ca in start_thread () at /lib64/libpthread.so.0
#4  0x00007fffec5c2f6d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7ffff7f8d9c0 (LWP 21351)):
#0  0x00007ffff751522f in std::_List_iterator<PBD::EventLoop::BaseRequestObject*>::operator++() (this=0x7fffffffc340) at /usr/include/c++/6.2.1/bits/stl_list.h:162
#1  0x00007ffff7512ae2 in std::__cxx11::list<PBD::EventLoop::BaseRequestObject*, std::allocator<PBD::EventLoop::BaseRequestObject*> >::remove(PBD::EventLoop::BaseRequestObject* const&) (this=0x73448f0, __value=@0x7fffffffc928: 0x7fff74054080) at /usr/include/c++/6.2.1/bits/list.tcc:333
#2  0x00007ffff75102d0 in AbstractUI<Gtkmm2ext::UIRequest>::handle_ui_requests() (this=0x2650110)
    at /home/timbyr/Data/devel/ardour/ardour-build-scripts/BUILD/master-debug-tests-internal-libs/libs/pbd/pbd/abstract_ui.cc:311
#3  0x00007ffff4a94492 in BaseUI::request_handler(Glib::IOCondition) (this=0x2650110, ioc=Glib::IO_IN) at ../libs/pbd/base_ui.cc:141
#4  0x00007ffff4a9806a in sigc::bound_mem_functor1<bool, BaseUI, Glib::IOCondition>::operator()(Glib::IOCondition const&) const (this=0x2614ac8, _A_a1=@0x7fffffffcbd4: Glib::IO_IN)
    at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:2064
#5  0x00007ffff4a97bb7 in sigc::adaptor_functor<sigc::bound_mem_functor1<bool, BaseUI, Glib::IOCondition> >::operator()<Glib::IOCondition const&>(Glib::IOCondition const&) const (this=0x2614ac0, _A_arg1=@0x7fffffffcbd4: Glib::IO_IN) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:89
#6  0x00007ffff4a97592 in sigc::internal::slot_call1<sigc::bound_mem_functor1<bool, BaseUI, Glib::IOCondition>, bool, Glib::IOCondition>::call_it(sigc::internal::slot_rep*, Glib::IOCondition const&) (rep=0x2614a90, a_1=@0x7fffffffcbd4: Glib::IO_IN) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:149
#7  0x00007ffff4aaa1f2 in sigc::slot1<bool, Glib::IOCondition>::operator()(Glib::IOCondition const&) const (this=0x2650190, _A_a1=@0x7fffffffcbd4: Glib::IO_IN)
---Type <return> to continue, or q <return> to quit---
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:577
#8  0x00007ffff4aa9f31 in cross_thread_channel_call_receive_slot(_GIOChannel*, GIOCondition, void*) (condition=G_IO_IN, data=0x2650180) at ../libs/pbd/crossthread.cc:49
#9  0x00007ffff38c86ba in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#10 0x00007ffff38c8a70 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#11 0x00007ffff38c8d92 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#12 0x00007ffff2f30197 in gtk_main () at /lib64/libgtk-x11-2.0.so.0
#13 0x00007ffff750b44c in Gtkmm2ext::UI::run(Receiver&) (this=0x2650110, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:286
#14 0x0000000001808f36 in main(int, char**) (argc=1, argv=0x7fffffffd128) at ../gtk2_ardour/main.cc:408
(gdb)