Thread 7 (Thread 1092561504 (LWP 29851)):
#0  0x00002abb46c578c6 in poll () from /lib/libc.so.6
#1  0x00002abb3f757145 in ARDOUR::Session::midi_thread_work () from libs/ardour/libardour.so
#2  0x00002abb3f757921 in ARDOUR::Session::_midi_thread_work () from libs/ardour/libardour.so
#3  0x00002abb4697c2a5 in start_thread () from /lib/libpthread.so.0
#4  0x00002abb46c6061d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 6 (Thread 1092057696 (LWP 29850)):
#0  0x00002abb46c089ae in memset () from /lib/libc.so.6
#1  0x00002abb46c0277a in calloc () from /lib/libc.so.6
#2  0x00002aaabfe2b8eb in activate_Echo () from /usr/lib64/ladspa/tap_echo.so
#3  0x00002abb3f6af556 in ARDOUR::LadspaPlugin::activate () from libs/ardour/libardour.so
#4  0x00002abb3f68e205 in ARDOUR::PluginInsert::activate () from libs/ardour/libardour.so
#5  0x00002abb3f6f252e in ARDOUR::Route::handle_transport_stopped () from libs/ardour/libardour.so
#6  0x00002abb3f77cc42 in ARDOUR::Session::update_latency_compensation () from libs/ardour/libardour.so
#7  0x00002abb3f77d7e8 in ARDOUR::Session::non_realtime_stop () from libs/ardour/libardour.so
#8  0x00002abb3f77e41a in ARDOUR::Session::butler_transport_work () from libs/ardour/libardour.so
#9  0x00002abb3f73c38e in ARDOUR::Session::butler_thread_work () from libs/ardour/libardour.so
#10 0x00002abb3f73d18f in ARDOUR::Session::_butler_thread_work () from libs/ardour/libardour.so
#11 0x00002abb4697c2a5 in start_thread () from /lib/libpthread.so.0
#12 0x00002abb46c6061d in clone () from /lib/libc.so.6
#13 0x0000000000000000 in ?? ()

Thread 5 (Thread 1091557696 (LWP 29849)):
#0  0x00002aaabfe2c891 in run_Echo () from /usr/lib64/ladspa/tap_echo.so
#1  0x00002abb3f6acf1f in ARDOUR::LadspaPlugin::connect_and_run () from libs/ardour/libardour.so
#2  0x00002abb3f68d8fc in ARDOUR::PluginInsert::silence () from libs/ardour/libardour.so
#3  0x00002abb3f6f3c30 in ARDOUR::Route::silence () from libs/ardour/libardour.so
#4  0x00002abb3f6f3b5c in ARDOUR::Route::no_roll () from libs/ardour/libardour.so
#5  0x00002abb3f7598cf in ARDOUR::Session::no_roll () from libs/ardour/libardour.so
#6  0x00002abb3f75ad0d in ARDOUR::Session::process_with_events () from libs/ardour/libardour.so
#7  0x00002abb3f7595af in ARDOUR::Session::process () from libs/ardour/libardour.so
#8  0x00002abb3f619616 in ARDOUR::AudioEngine::process_callback () from libs/ardour/libardour.so
#9  0x00002abb4624fee1 in ?? () from /usr/lib/libjack-0.100.0.so.0
#10 0x00002abb4625339e in ?? () from /usr/lib/libjack-0.100.0.so.0
#11 0x00002abb4697c2a5 in start_thread () from /lib/libpthread.so.0
#12 0x00002abb46c6061d in clone () from /lib/libc.so.6
#13 0x0000000000000000 in ?? ()

Thread 4 (Thread 1091025504 (LWP 29848)):
#0  0x00002abb46983881 in ?? () from /lib/libpthread.so.0
#1  0x00002abb4137bd38 in g_usleep () from /usr/lib/libglib-2.0.so.0
#2  0x00002abb3f618bbf in ARDOUR::AudioEngine::meter_thread () from libs/ardour/libardour.so
#3  0x00002abb44c4375f in call_thread_entry_slot () from libs/glibmm2/libglibmm2.so
#4  0x00002abb41379b74 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00002abb4697c2a5 in start_thread () from /lib/libpthread.so.0
#6  0x00002abb46c6061d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 3 (Thread 1090525504 (LWP 29847)):
#0  0x00002abb46980796 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00002abb3f78bedc in peak_thread_work () from libs/ardour/libardour.so
#2  0x00002abb44c4375f in call_thread_entry_slot () from libs/glibmm2/libglibmm2.so
#3  0x00002abb41379b74 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00002abb4697c2a5 in start_thread () from /lib/libpthread.so.0
#5  0x00002abb46c6061d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 2 (Thread 1082132800 (LWP 29846)):
#0  0x00002abb46980796 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00002abb3f78bedc in peak_thread_work () from libs/ardour/libardour.so
#2  0x00002abb44c4375f in call_thread_entry_slot () from libs/glibmm2/libglibmm2.so
#3  0x00002abb41379b74 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00002abb4697c2a5 in start_thread () from /lib/libpthread.so.0
#5  0x00002abb46c6061d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 46983880608320 (LWP 29839)):
#0  0x00002abb46c578c6 in poll () from /lib/libc.so.6
#1  0x00002abb413606ae in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00002abb41360b6a in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#3  0x00002abb41c87023 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#4  0x00002abb3fc7fbdd in Gtkmm2ext::UI::run () from libs/gtkmm2ext/libgtkmm2ext.so
#5  0x0000000000701b0a in main ()
#0  0x00002aaabfe2c891 in run_Echo () from /usr/lib64/ladspa/tap_echo.so