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  1. (gdb) thread apply all bt
  2.  
  3. Thread 26 (Thread 0x7efbf10cb700 (LWP 28418)):
  4. #0  0x00007efc1b487bf0 in __GI___nanosleep (requested_time=0x7efbf10ca810, remaining=0x0) at ../sysdeps/unix/sysv/linux/nanosleep.c:28
  5. #1  0x00007efbd42eba08 in  () at /home/rgareus/.lv2/meters.lv2/meters_glui.so
  6. #2  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  7. #3  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  8.  
  9. Thread 25 (Thread 0x7efbf1ba2700 (LWP 28417)):
  10. #0  0x00007efc1b48400c in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f9a8ad3488) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  11. #1  0x00007efc1b48400c in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f9a8ad3438, cond=0x55f9a8ad3460) at pthread_cond_wait.c:502
  12. #2  0x00007efc1b48400c in __pthread_cond_wait (cond=0x55f9a8ad3460, mutex=0x55f9a8ad3438) at pthread_cond_wait.c:655
  13. #3  0x00007efbb11fce03 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
  14. #4  0x00007efbb11fcb57 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
  15. #5  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  16. #6  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  17.  
  18. Thread 24 (Thread 0x7efbb27fc700 (LWP 28414)):
  19. #0  0x00007efc1b487bf0 in __GI___nanosleep (requested_time=0x7efbb27fb6c0, remaining=0x7efbb27fb6d0) at ../sysdeps/unix/sysv/linux/nanosleep.c:28
  20. #1  0x00007efc1c99babf in g_usleep () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  21. #2  0x00007efc1eac0be2 in ARDOUR::AutomationWatch::thread() (this=0x55f9a8ae0c00) at ../libs/ardour/automation_watch.cc:194
  22. #3  0x00007efc1eac6011 in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator()(ARDOUR::AutomationWatch*) const (this=0x55f9a8c9cf60, p=0x55f9a8ae0c00)
  23.     at /usr/include/boost/bind/mem_fn_template.hpp:49
  24. #4  0x00007efc1eac5bf5 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=0x55f9a8c9cf70, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
  25. #5  0x00007efc1eac54b3 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator()()
  26.    (this=0x55f9a8c9cf60) at /usr/include/boost/bind/bind.hpp:1294
  27. #6  0x00007efc1eac5444 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=0x55f9a8c9cf60) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
  28. #7  0x00007efc1eac4e94 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=0x55f9a8c9cf30) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
  29. #8  0x00007efc1cae9d5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
  30. #9  0x00007efc1c99a415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  31. #10 0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  32. #11 0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  33.  
  34. Thread 23 (Thread 0x7efbb2ffd700 (LWP 28413)):
  35. #0  0x00007efc1b48400c in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f9aa5e1218) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  36. #1  0x00007efc1b48400c in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f9aa5e11c8, cond=0x55f9aa5e11f0) at pthread_cond_wait.c:502
  37. #2  0x00007efc1b48400c in __pthread_cond_wait (cond=0x55f9aa5e11f0, mutex=0x55f9aa5e11c8) at pthread_cond_wait.c:655
  38. #3  0x00007efc1f08a12b in ARDOUR::Session::auto_connect_thread_run() (this=0x55f9aa5df400) at ../libs/ardour/session.cc:6894
  39. #4  0x00007efc1f089e26 in ARDOUR::Session::auto_connect_thread(void*) (arg=0x55f9aa5df400) at ../libs/ardour/session.cc:6841
  40. #5  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  41. #6  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  42.  
  43. Thread 22 (Thread 0x7efbb37fe700 (LWP 28412)):
  44. #0  0x00007efc1b48400c in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f9aa5e11a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  45. #1  0x00007efc1b48400c in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f9aa5e1158, cond=0x55f9aa5e1180) at pthread_cond_wait.c:502
  46. #2  0x00007efc1b48400c in __pthread_cond_wait (cond=0x55f9aa5e1180, mutex=0x55f9aa5e1158) at pthread_cond_wait.c:655
  47. #3  0x00007efc1f0ff907 in ARDOUR::Session::emit_thread_run() (this=0x55f9aa5df400) at ../libs/ardour/session_process.cc:1088
  48. #4  0x00007efc1f0ff8a4 in ARDOUR::Session::emit_thread(void*) (arg=0x55f9aa5df400) at ../libs/ardour/session_process.cc:1077
  49. #5  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  50. --Type <RET> for more, q to quit, c to continue without paging--
  51. #6  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  52.  
  53. Thread 21 (Thread 0x7efbd54bb700 (LWP 28411)):
  54. #0  0x00007efc19ac8819 in __GI___poll (fds=0x7efbac193480, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  55. #1  0x00007efc1c972136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  56. #2  0x00007efc1c9724c2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  57. #3  0x00007efc1cff86fc in BaseUI::main_thread() (this=0x55f9aa9aa460) at ../libs/pbd/base_ui.cc:98
  58. #4  0x00007efc1cffc760 in sigc::bound_mem_functor0<void, BaseUI>::operator()() const (this=0x55f9aa9ab0c8) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1991
  59. #5  0x00007efc1cffc3ec in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator()() const (this=0x55f9aa9ab0c0)
  60.     at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
  61. #6  0x00007efc1cffbe4b in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it(sigc::internal::slot_rep*) (rep=0x55f9aa9ab090)
  62.     at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
  63. #7  0x00007efc1cae9d5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
  64. #8  0x00007efc1c99a415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  65. #9  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  66. #10 0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  67.  
  68. Thread 20 (Thread 0x7efbd7ee7700 (LWP 28409)):
  69. #0  0x00007efc19ac8819 in __GI___poll (fds=0x7efbc0192890, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  70. #1  0x00007efc1c972136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  71. #2  0x00007efc1c9724c2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  72. #3  0x00007efc1cff86fc in BaseUI::main_thread() (this=0x55f9ab07aee0) at ../libs/pbd/base_ui.cc:98
  73. #4  0x00007efc1cffc760 in sigc::bound_mem_functor0<void, BaseUI>::operator()() const (this=0x55f9a77e3358) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1991
  74. #5  0x00007efc1cffc3ec in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator()() const (this=0x55f9a77e3350)
  75.     at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
  76. #6  0x00007efc1cffbe4b in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it(sigc::internal::slot_rep*) (rep=0x55f9a77e3320)
  77.     at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
  78. #7  0x00007efc1cae9d5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
  79. #8  0x00007efc1c99a415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  80. #9  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  81. #10 0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  82.  
  83. Thread 19 (Thread 0x7efbd7f62800 (LWP 28408)):
  84. #0  0x00007efc19ac8819 in __GI___poll (fds=0x7efbd7f60f38, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  85. #1  0x00007efc1d00dbde in CrossThreadChannel::poll_for_request() (this=0x55f9a7dbc2c8) at ../libs/pbd/crossthread.posix.cc:102
  86. #2  0x00007efc1d00dc47 in CrossThreadChannel::receive(char&, bool) (this=0x55f9a7dbc2c8, msg=@0x7efbd7f60fff: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:123
  87. #3  0x00007efc1ead6364 in ARDOUR::Butler::thread_work() (this=0x55f9a7dbc230) at ../libs/ardour/butler.cc:172
  88. #4  0x00007efc1ead60e7 in ARDOUR::Butler::_thread_work(void*) (arg=0x55f9a7dbc230) at ../libs/ardour/butler.cc:153
  89. #5  0x00007efc1d02fa7a in fake_thread_start(void*) (arg=0x55f9a820cdc0) at ../libs/pbd/pthread_utils.cc:107
  90. #6  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  91. #7  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  92.  
  93. Thread 18 (Thread 0x7efbd7f7cd80 (LWP 28407)):
  94. #0  0x00007efc1b486896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55f9ab030d60) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  95. #1  0x00007efc1b486896 in do_futex_wait (sem=sem@entry=0x55f9ab030d60, abstime=0x0) at sem_waitcommon.c:111
  96. #2  0x00007efc1b486988 in __new_sem_wait_slow (sem=0x55f9ab030d60, abstime=0x0) at sem_waitcommon.c:181
  97. #3  0x00007efc1ebef0b6 in PBD::Semaphore::wait() (this=0x55f9ab030d60) at ../libs/pbd/pbd/semutils.h:64
  98. #4  0x00007efc1ebec878 in ARDOUR::Graph::run_one() (this=0x55f9ab030cb0) at ../libs/ardour/graph.cc:426
  99. #5  0x00007efc1ebecd30 in ARDOUR::Graph::helper_thread() (this=0x55f9ab030cb0) at ../libs/ardour/graph.cc:470
  100. #6  0x00007efc1ebf3199 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7efbd7f7be78, p=0x55f9ab030cb0) at /usr/include/boost/bind/mem_fn_template.hpp:49
  101. #7  0x00007efc1ebf2973 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<--Type <RET> for more, q to quit, c to continue without paging--
  102. void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0x7efbd7f7be88, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
  103. #8  0x00007efc1ebf1ddd in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7efbd7f7be78)
  104.     at /usr/include/boost/bind/bind.hpp:1294
  105. #9  0x00007efc1ebf1698 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
  106. #10 0x000055f9a3b29f24 in boost::function0<void>::operator()() const (this=0x7efbd7f7be70) at /usr/include/boost/function/function_template.hpp:768
  107. #11 0x00007efc05e657f1 in ARDOUR::DummyAudioBackend::dummy_process_thread(void*) (arg=0x55f9ab1d85d0) at ../libs/backends/dummy/dummy_audiobackend.cc:560
  108. #12 0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  109. #13 0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  110.  
  111. Thread 17 (Thread 0x7efbd7f96d80 (LWP 28406)):
  112. #0  0x00007efc1b486896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55f9ab030d60) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  113. #1  0x00007efc1b486896 in do_futex_wait (sem=sem@entry=0x55f9ab030d60, abstime=0x0) at sem_waitcommon.c:111
  114. #2  0x00007efc1b486988 in __new_sem_wait_slow (sem=0x55f9ab030d60, abstime=0x0) at sem_waitcommon.c:181
  115. #3  0x00007efc1ebef0b6 in PBD::Semaphore::wait() (this=0x55f9ab030d60) at ../libs/pbd/pbd/semutils.h:64
  116. #4  0x00007efc1ebec878 in ARDOUR::Graph::run_one() (this=0x55f9ab030cb0) at ../libs/ardour/graph.cc:426
  117. #5  0x00007efc1ebecd30 in ARDOUR::Graph::helper_thread() (this=0x55f9ab030cb0) at ../libs/ardour/graph.cc:470
  118. #6  0x00007efc1ebf3199 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7efbd7f95e78, p=0x55f9ab030cb0) at /usr/include/boost/bind/mem_fn_template.hpp:49
  119. #7  0x00007efc1ebf2973 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=0x7efbd7f95e88, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
  120. #8  0x00007efc1ebf1ddd in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7efbd7f95e78)
  121.     at /usr/include/boost/bind/bind.hpp:1294
  122. #9  0x00007efc1ebf1698 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
  123. #10 0x000055f9a3b29f24 in boost::function0<void>::operator()() const (this=0x7efbd7f95e70) at /usr/include/boost/function/function_template.hpp:768
  124. #11 0x00007efc05e657f1 in ARDOUR::DummyAudioBackend::dummy_process_thread(void*) (arg=0x55f9ab354760) at ../libs/backends/dummy/dummy_audiobackend.cc:560
  125. #12 0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  126. #13 0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  127.  
  128. Thread 16 (Thread 0x7efbd7fb0d80 (LWP 28405)):
  129. #0  0x00007efc1b486896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55f9ab030d60) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  130. #1  0x00007efc1b486896 in do_futex_wait (sem=sem@entry=0x55f9ab030d60, abstime=0x0) at sem_waitcommon.c:111
  131. #2  0x00007efc1b486988 in __new_sem_wait_slow (sem=0x55f9ab030d60, abstime=0x0) at sem_waitcommon.c:181
  132. #3  0x00007efc1ebef0b6 in PBD::Semaphore::wait() (this=0x55f9ab030d60) at ../libs/pbd/pbd/semutils.h:64
  133. #4  0x00007efc1ebec878 in ARDOUR::Graph::run_one() (this=0x55f9ab030cb0) at ../libs/ardour/graph.cc:426
  134. #5  0x00007efc1ebecd30 in ARDOUR::Graph::helper_thread() (this=0x55f9ab030cb0) at ../libs/ardour/graph.cc:470
  135. #6  0x00007efc1ebf3199 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7efbd7fafe78, p=0x55f9ab030cb0) at /usr/include/boost/bind/mem_fn_template.hpp:49
  136. #7  0x00007efc1ebf2973 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=0x7efbd7fafe88, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
  137. #8  0x00007efc1ebf1ddd in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7efbd7fafe78)
  138.     at /usr/include/boost/bind/bind.hpp:1294
  139. #9  0x00007efc1ebf1698 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
  140. #10 0x000055f9a3b29f24 in boost::function0<void>::operator()() const (this=0x7efbd7fafe70) at /usr/include/boost/function/function_template.hpp:768
  141. #11 0x00007efc05e657f1 in ARDOUR::DummyAudioBackend::dummy_process_thread(void*) (arg=0x55f9a87c7330) at ../libs/backends/dummy/dummy_audiobackend.cc:560
  142. #12 0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  143. #13 0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  144.  
  145. Thread 15 (Thread 0x7efbd7fcad80 (LWP 28404)):
  146. #0  0x00007efc1b486896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55f9ab030d88) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  147. #1  0x00007efc1b486896 in do_futex_wait (sem=sem@entry=0x55f9ab030d88, abstime=0x0) at sem_waitcommon.c:111
  148. --Type <RET> for more, q to quit, c to continue without paging--
  149. #2  0x00007efc1b486988 in __new_sem_wait_slow (sem=0x55f9ab030d88, abstime=0x0) at sem_waitcommon.c:181
  150. #3  0x00007efc1ebef0b6 in PBD::Semaphore::wait() (this=0x55f9ab030d88) at ../libs/pbd/pbd/semutils.h:64
  151. #4  0x00007efc1ebebc1b in ARDOUR::Graph::reached_terminal_node() (this=0x55f9ab030cb0) at ../libs/ardour/graph.cc:301
  152. #5  0x00007efc1ebf3839 in ARDOUR::GraphNode::finish(int) (this=0x55f9a77eff88, chain=1) at ../libs/ardour/graphnode.cc:73
  153. #6  0x00007efc1ebef120 in ARDOUR::GraphNode::run(int) (this=0x55f9a77eff88, chain=1) at ../libs/ardour/ardour/graphnode.h:63
  154. #7  0x00007efc1ebec9e6 in ARDOUR::Graph::run_one() (this=0x55f9ab030cb0) at ../libs/ardour/graph.cc:442
  155. #8  0x00007efc1ebed112 in ARDOUR::Graph::main_thread() (this=0x55f9ab030cb0) at ../libs/ardour/graph.cc:523
  156. #9  0x00007efc1ebf3199 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7efbd7fc9e78, p=0x55f9ab030cb0) at /usr/include/boost/bind/mem_fn_template.hpp:49
  157. #10 0x00007efc1ebf2973 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=0x7efbd7fc9e88, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
  158. #11 0x00007efc1ebf1ddd in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7efbd7fc9e78)
  159.     at /usr/include/boost/bind/bind.hpp:1294
  160. #12 0x00007efc1ebf1698 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
  161. #13 0x000055f9a3b29f24 in boost::function0<void>::operator()() const (this=0x7efbd7fc9e70) at /usr/include/boost/function/function_template.hpp:768
  162. #14 0x00007efc05e657f1 in ARDOUR::DummyAudioBackend::dummy_process_thread(void*) (arg=0x55f9a7a5a110) at ../libs/backends/dummy/dummy_audiobackend.cc:560
  163. #15 0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  164. #16 0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  165.  
  166. Thread 14 (Thread 0x7efbd7fe4d80 (LWP 28403)):
  167. #0  0x00007efc1b486896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55f9ab2b7cb0) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  168. #1  0x00007efc1b486896 in do_futex_wait (sem=sem@entry=0x55f9ab2b7cb0, abstime=0x0) at sem_waitcommon.c:111
  169. #2  0x00007efc1b486988 in __new_sem_wait_slow (sem=0x55f9ab2b7cb0, abstime=0x0) at sem_waitcommon.c:181
  170. #3  0x00007efc1ebef0b6 in PBD::Semaphore::wait() (this=0x55f9ab2b7cb0) at ../libs/pbd/pbd/semutils.h:64
  171. #4  0x00007efc1f04dcdf in ARDOUR::RTTaskList::run() (this=0x55f9ab2b7c80) at ../libs/ardour/rt_tasklist.cc:112
  172. #5  0x00007efc1f04daca in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x55f9ab2b7c80) at ../libs/ardour/rt_tasklist.cc:66
  173. #6  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  174. #7  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  175.  
  176. Thread 13 (Thread 0x7efbd7ffed80 (LWP 28402)):
  177. #0  0x00007efc1b486896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55f9ab2b7cb0) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  178. #1  0x00007efc1b486896 in do_futex_wait (sem=sem@entry=0x55f9ab2b7cb0, abstime=0x0) at sem_waitcommon.c:111
  179. #2  0x00007efc1b486988 in __new_sem_wait_slow (sem=0x55f9ab2b7cb0, abstime=0x0) at sem_waitcommon.c:181
  180. #3  0x00007efc1ebef0b6 in PBD::Semaphore::wait() (this=0x55f9ab2b7cb0) at ../libs/pbd/pbd/semutils.h:64
  181. #4  0x00007efc1f04dcdf in ARDOUR::RTTaskList::run() (this=0x55f9ab2b7c80) at ../libs/ardour/rt_tasklist.cc:112
  182. #5  0x00007efc1f04daca in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x55f9ab2b7c80) at ../libs/ardour/rt_tasklist.cc:66
  183. #6  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  184. #7  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  185.  
  186. Thread 12 (Thread 0x7efbf002cd80 (LWP 28401)):
  187. #0  0x00007efc1b486896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55f9ab2b7cb0) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  188. #1  0x00007efc1b486896 in do_futex_wait (sem=sem@entry=0x55f9ab2b7cb0, abstime=0x0) at sem_waitcommon.c:111
  189. #2  0x00007efc1b486988 in __new_sem_wait_slow (sem=0x55f9ab2b7cb0, abstime=0x0) at sem_waitcommon.c:181
  190. #3  0x00007efc1ebef0b6 in PBD::Semaphore::wait() (this=0x55f9ab2b7cb0) at ../libs/pbd/pbd/semutils.h:64
  191. #4  0x00007efc1f04dcdf in ARDOUR::RTTaskList::run() (this=0x55f9ab2b7c80) at ../libs/ardour/rt_tasklist.cc:112
  192. #5  0x00007efc1f04daca in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x55f9ab2b7c80) at ../libs/ardour/rt_tasklist.cc:66
  193. #6  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  194. #7  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  195.  
  196. Thread 11 (Thread 0x7efbf111fd80 (LWP 28400)):
  197. #0  0x00007efc1b486896 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55f9ab2b7cb0) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  198. --Type <RET> for more, q to quit, c to continue without paging--
  199. #1  0x00007efc1b486896 in do_futex_wait (sem=sem@entry=0x55f9ab2b7cb0, abstime=0x0) at sem_waitcommon.c:111
  200. #2  0x00007efc1b486988 in __new_sem_wait_slow (sem=0x55f9ab2b7cb0, abstime=0x0) at sem_waitcommon.c:181
  201. #3  0x00007efc1ebef0b6 in PBD::Semaphore::wait() (this=0x55f9ab2b7cb0) at ../libs/pbd/pbd/semutils.h:64
  202. #4  0x00007efc1f04dcdf in ARDOUR::RTTaskList::run() (this=0x55f9ab2b7c80) at ../libs/ardour/rt_tasklist.cc:112
  203. #5  0x00007efc1f04daca in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x55f9ab2b7c80) at ../libs/ardour/rt_tasklist.cc:66
  204. #6  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  205. #7  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  206.  
  207. Thread 10 (Thread 0x7efbf23a3700 (LWP 28390)):
  208. #0  0x00007efc1b487bf0 in __GI___nanosleep (requested_time=0x7efbf23a26a0, remaining=0x7efbf23a26b0) at ../sysdeps/unix/sysv/linux/nanosleep.c:28
  209. #1  0x00007efc1c99babf in g_usleep () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  210. #2  0x00007efc05e69542 in ARDOUR::DummyAudioBackend::main_process_thread() (this=0x55f9a6df8a00) at ../libs/backends/dummy/dummy_audiobackend.cc:1404
  211. #3  0x00007efc05e65109 in pthread_process(void*) (arg=0x55f9a6df8a00) at ../libs/backends/dummy/dummy_audiobackend.cc:431
  212. #4  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  213. #5  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  214.  
  215. Thread 9 (Thread 0x7efbf33e7700 (LWP 28386)):
  216. #0  0x00007efc19ac8819 in __GI___poll (fds=0x55f9a6bb3380, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  217. #1  0x00007efc1c972136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  218. #2  0x00007efc1c9724c2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  219. #3  0x00007efc1c1dd266 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
  220. #4  0x00007efc1c99a415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  221. #5  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  222. #6  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  223.  
  224. Thread 8 (Thread 0x7efbf3be8700 (LWP 28385)):
  225. #0  0x00007efc19ac8819 in __GI___poll (fds=0x55f9a6ba9500, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  226. #1  0x00007efc1c972136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  227. #2  0x00007efc1c97225c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  228. #3  0x00007efc1c9722a1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  229. #4  0x00007efc1c99a415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  230. #5  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  231. #6  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  232.  
  233. Thread 7 (Thread 0x7efc067a0700 (LWP 28383)):
  234. #0  0x00007efc19acdf59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  235. #1  0x00007efc1c9bbf9f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  236. #2  0x00007efc1ea69883 in ARDOUR::AudioEngine::do_devicelist_update() (this=0x55f9a6cc64d0) at ../libs/ardour/audioengine.cc:670
  237. #3  0x00007efc1ea76097 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator()(ARDOUR::AudioEngine*) const (this=0x55f9a6cd91b0, p=0x55f9a6cc64d0)
  238.     at /usr/include/boost/bind/mem_fn_template.hpp:49
  239. #4  0x00007efc1ea75acb 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=0x55f9a6cd91c0, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
  240. #5  0x00007efc1ea752e7 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator()()
  241.    (this=0x55f9a6cd91b0) at /usr/include/boost/bind/bind.hpp:1294
  242. #6  0x00007efc1ea74b20 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=0x55f9a6cd91b0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
  243. #7  0x00007efc1ea73e90 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=0x55f9a6cd9180) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
  244. #8  0x00007efc1cae9d5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
  245. #9  0x00007efc1c99a415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  246. #10 0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  247. --Type <RET> for more, q to quit, c to continue without paging--
  248. #11 0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  249.  
  250. Thread 6 (Thread 0x7efc077a9700 (LWP 28382)):
  251. #0  0x00007efc19acdf59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  252. #1  0x00007efc1c9bbf9f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  253. #2  0x00007efc1ea69656 in ARDOUR::AudioEngine::do_reset_backend() (this=0x55f9a6cc64d0) at ../libs/ardour/audioengine.cc:635
  254. #3  0x00007efc1ea76097 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator()(ARDOUR::AudioEngine*) const (this=0x55f9a6cd9140, p=0x55f9a6cc64d0)
  255.     at /usr/include/boost/bind/mem_fn_template.hpp:49
  256. #4  0x00007efc1ea75acb 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=0x55f9a6cd9150, f=..., a=...) at /usr/include/boost/bind/bind.hpp:259
  257. #5  0x00007efc1ea752e7 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator()()
  258.    (this=0x55f9a6cd9140) at /usr/include/boost/bind/bind.hpp:1294
  259. #6  0x00007efc1ea74b20 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=0x55f9a6cd9140) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
  260. #7  0x00007efc1ea73e90 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=0x55f9a6cd9110) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
  261. #8  0x00007efc1cae9d5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
  262. #9  0x00007efc1c99a415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  263. #10 0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  264. #11 0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  265.  
  266. Thread 5 (Thread 0x7efc0ddf4700 (LWP 28380)):
  267. #0  0x00007efc19acdf59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  268. #1  0x00007efc1c9bbf9f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  269. #2  0x00007efc1ea1edbc in ARDOUR::Analyser::work() () at ../libs/ardour/analyser.cc:89
  270. #3  0x00007efc1ea1ebb0 in analyser_work() () at ../libs/ardour/analyser.cc:54
  271. #4  0x000055f9a436f7cd in sigc::pointer_functor0<void>::operator()() const (this=0x55f9a6823018) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
  272. #5  0x000055f9a436cc44 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x55f9a6823010) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
  273. #6  0x000055f9a43691f5 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x55f9a6822fe0)
  274.     at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
  275. #7  0x00007efc1cae9d5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
  276. #8  0x00007efc1c99a415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  277. #9  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  278. #10 0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  279.  
  280. Thread 4 (Thread 0x7efc05df4700 (LWP 28379)):
  281. #0  0x00007efc19acdf59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  282. #1  0x00007efc1c9bbf9f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  283. #2  0x00007efc1f18d3ac in peak_thread_work() () at ../libs/ardour/source_factory.cc:74
  284. #3  0x000055f9a436f7cd in sigc::pointer_functor0<void>::operator()() const (this=0x55f9a68230a8) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
  285. #4  0x000055f9a436cc44 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x55f9a68230a0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
  286. #5  0x000055f9a43691f5 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x55f9a6823070)
  287.     at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
  288. #6  0x00007efc1cae9d5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
  289. #7  0x00007efc1c99a415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  290. #8  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  291. #9  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  292.  
  293. Thread 3 (Thread 0x7efc0e5f5700 (LWP 28378)):
  294. #0  0x00007efc19acdf59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  295. #1  0x00007efc1c9bbf9f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  296. --Type <RET> for more, q to quit, c to continue without paging--
  297. #2  0x00007efc1f18d3ac in peak_thread_work() () at ../libs/ardour/source_factory.cc:74
  298. #3  0x000055f9a436f7cd in sigc::pointer_functor0<void>::operator()() const (this=0x55f9a67cb1b8) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
  299. #4  0x000055f9a436cc44 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x55f9a67cb1b0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
  300. #5  0x000055f9a43691f5 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x55f9a67cb180)
  301.     at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
  302. #6  0x00007efc1cae9d5a in  () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
  303. #7  0x00007efc1c99a415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  304. #8  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  305. #9  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  306.  
  307. Thread 2 (Thread 0x7efc0edf6700 (LWP 28377)):
  308. #0  0x00007efc1b487bf0 in __GI___nanosleep (requested_time=0x7efc0edf56e0, remaining=0x7efc0edf56f0) at ../sysdeps/unix/sysv/linux/nanosleep.c:28
  309. #1  0x00007efc1c99babf in g_usleep () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  310. #2  0x000055f9a46e2ad7 in gui_event_loop(void*) (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:460
  311. #3  0x00007efc1b47dfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
  312. #4  0x00007efc19ad34cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  313.  
  314. Thread 1 (Thread 0x7efc0f261e00 (LWP 28375)):
  315. #0  0x00007efc19acdf59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  316. #1  0x00007efc1c9bb61c in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  317. #2  0x000055f9a3b116d0 in Glib::Threads::Mutex::Lock::Lock(Glib::Threads::Mutex&) (this=0x7fff7b64e8a0, mutex=...) at /usr/include/glibmm-2.4/glibmm/threads.h:687
  318. #3  0x000055f9a4012361 in PBD::Signal2<void, bool, PBD::Controllable::GroupControlDisposition, PBD::OptionalLastValue<void> >::~Signal2() (this=0x55f9a8705180, __in_chrg=<optimized out>)
  319.     at libs/pbd/pbd/signals_generated.h:963
  320. #4  0x000055f9a4011e88 in PBD::Controllable::~Controllable() (this=0x55f9a8704fc0, __in_chrg=<optimized out>) at ../libs/pbd/pbd/controllable.h:72
  321. #5  0x00007efc1eab3662 in ARDOUR::AutomationControl::~AutomationControl() (this=0x55f9a8704fc0, __in_chrg=<optimized out>) at ../libs/ardour/automation_control.cc:73
  322. #6  0x00007efc1ef82680 in ARDOUR::PluginInsert::PluginControl::~PluginControl() (this=0x55f9a8704fc0, __in_chrg=<optimized out>) at ../libs/ardour/ardour/plugin_insert.h:203
  323. #7  0x00007efc1ef826cc in ARDOUR::PluginInsert::PluginControl::~PluginControl() (this=0x55f9a8704fc0, __in_chrg=<optimized out>) at ../libs/ardour/ardour/plugin_insert.h:203
  324. #8  0x00007efc1ef82728 in boost::checked_delete<ARDOUR::PluginInsert::PluginControl>(ARDOUR::PluginInsert::PluginControl*) (x=0x55f9a8704fc0) at /usr/include/boost/core/checked_delete.hpp:34
  325. #9  0x00007efc1ef8710a in boost::detail::sp_counted_impl_p<ARDOUR::PluginInsert::PluginControl>::dispose() (this=0x55f9a8705440) at /usr/include/boost/smart_ptr/detail/sp_counted_impl.hpp:92
  326. #10 0x000055f9a3b11b11 in boost::detail::sp_counted_base::release() (this=0x55f9a8705440) at /usr/include/boost/smart_ptr/detail/sp_counted_base_std_atomic.hpp:110
  327. #11 0x000055f9a3b11b87 in boost::detail::shared_count::~shared_count() (this=0x55f9aa9acf48, __in_chrg=<optimized out>) at /usr/include/boost/smart_ptr/detail/shared_count.hpp:426
  328. #12 0x000055f9a3b432b0 in boost::shared_ptr<ARDOUR::AutomationControl>::~shared_ptr() (this=0x55f9aa9acf40, __in_chrg=<optimized out>) at /usr/include/boost/smart_ptr/shared_ptr.hpp:341
  329. #13 0x00007efc0d560ec6 in boost::_bi::value<boost::shared_ptr<ARDOUR::AutomationControl> >::~value() (this=0x55f9aa9acf40, __in_chrg=<optimized out>) at /usr/include/boost/bind/bind.hpp:118
  330. #14 0x00007efc06f7f43c in boost::_bi::storage5<boost::_bi::value<ArdourFeedback*>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<boost::shared_ptr<ARDOUR::AutomationControl> > >::~storage5() (this=0x55f9aa9acf28, __in_chrg=<optimized out>) at /usr/include/boost/bind/storage.hpp:223
  331. #15 0x00007efc06f7f458 in boost::_bi::list5<boost::_bi::value<ArdourFeedback*>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<boost::shared_ptr<ARDOUR::AutomationControl> > >::~list5() (this=0x55f9aa9acf28, __in_chrg=<optimized out>) at /usr/include/boost/bind/bind.hpp:487
  332. #16 0x00007efc06f7f478 in boost::_bi::bind_t<void, PluginParamValueObserver, boost::_bi::list5<boost::_bi::value<ArdourFeedback*>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<boost::shared_ptr<ARDOUR::AutomationControl> > > >::~bind_t() (this=0x55f9aa9acf20, __in_chrg=<optimized out>)
  333.     at /usr/include/boost/bind/bind.hpp:1275
  334. #17 0x00007efc06f86dd7 in boost::detail::function::functor_manager<boost::_bi::bind_t<void, PluginParamValueObserver, boost::_bi::list5<boost::_bi::value<ArdourFeedback*>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<boost::shared_ptr<ARDOUR::AutomationControl> > > > >::manager(boost::detail::function::function_buffer const&, boost::detail::function::function_buffer&, boost::detail::function::functor_manager_operation_type, mpl_::bool_<false>)
  335.    (in_buffer=..., out_buffer=..., op=boost::detail::function::destroy_functor_tag) at /usr/include/boost/function/function_base.hpp:358
  336. #18 0x00007efc06f856ad in boost::detail::function::functor_manager<boost::_bi::bind_t<void, PluginParamValueObserver, boost::_bi::list5<boost::_bi::value<ArdourFeedback*>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<boost::shared_ptr<ARDOUR::AutomationControl> > > > >::manager(boost::detail::function::function_buffer const&, boost::detail::function::function_buffer&, boost::detail::function::functor_manager_operation_type, boost::detail::function::function_obj_tag)
  337.    (in_buffer=..., out_buffer=..., op=boost::detail::function::destroy_functor_tag) at /usr/include/boost/function/function_base.hpp:379
  338. #19 0x00007efc06f83c4b in boost::detail::function::functor_manager<boost::_bi::bind_t<void, PluginParamValueObserver, boost::_bi::list5<boost::_bi::value<ArdourFeedback*>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<boost::shared_ptr<ARDOUR::AutomationControl> > > > >::manage(boost::detail::function::function_buffer const&, boost::detail::function::function_buffer&, boost::detail::function::functor_manager_operation_type)
  339. --Type <RET> for more, q to quit, c to continue without paging--
  340.    (in_buffer=..., out_buffer=..., op=boost::detail::function::destroy_functor_tag) at /usr/include/boost/function/function_base.hpp:407
  341. #20 0x000055f9a3c2ad55 in boost::detail::function::basic_vtable2<void, bool, PBD::Controllable::GroupControlDisposition>::clear(boost::detail::function::function_buffer&) const (this=
  342.     0x7efc06fa73f0 <boost::function2<void, bool, PBD::Controllable::GroupControlDisposition>::assign_to<boost::_bi::bind_t<void, PluginParamValueObserver, boost::_bi::list5<boost::_bi::value<ArdourFeedback*>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<boost::shared_ptr<ARDOUR::AutomationControl> > > > >(boost::_bi::bind_t<void, PluginParamValueObserver, boost::_bi::list5<boost::_bi::value<ArdourFeedback*>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<unsigned int>, boost::_bi::value<boost::shared_ptr<ARDOUR::AutomationControl> > > >)::stored_vtable>, functor=...) at /usr/include/boost/function/function_template.hpp:510
  343. #21 0x000055f9a3c29d03 in boost::function2<void, bool, PBD::Controllable::GroupControlDisposition>::clear() (this=0x55f9aa9ac768) at /usr/include/boost/function/function_template.hpp:877
  344. #22 0x000055f9a3c29308 in boost::function2<void, bool, PBD::Controllable::GroupControlDisposition>::~function2() (this=0x55f9aa9ac768, __in_chrg=<optimized out>)
  345.     at /usr/include/boost/function/function_template.hpp:761
  346. #23 0x000055f9a3c28f32 in boost::function<void (bool, PBD::Controllable::GroupControlDisposition)>::~function() (this=0x55f9aa9ac768, __in_chrg=<optimized out>)
  347.     at /usr/include/boost/function/function_template.hpp:1050
  348. #24 0x000055f9a3c29324 in boost::_bi::value<boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >::~value() (this=0x55f9aa9ac768, __in_chrg=<optimized out>)
  349.     at /usr/include/boost/bind/bind.hpp:118
  350. #25 0x000055f9a3c29340 in boost::_bi::storage1<boost::_bi::value<boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >::~storage1()
  351.    (this=0x55f9aa9ac768, __in_chrg=<optimized out>) at /usr/include/boost/bind/storage.hpp:40
  352. #26 0x000055f9a3c2935c in boost::_bi::storage2<boost::_bi::value<boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, boost::_bi::value<PBD::EventLoop*> >::~storage2()
  353.    (this=0x55f9aa9ac768, __in_chrg=<optimized out>) at /usr/include/boost/bind/storage.hpp:76
  354. #27 0x000055f9a3c29378 in boost::_bi::storage3<boost::_bi::value<boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*> >::~storage3() (this=0x55f9aa9ac768, __in_chrg=<optimized out>) at /usr/include/boost/bind/storage.hpp:125
  355. #28 0x000055f9a3c29394 in boost::_bi::storage4<boost::_bi::value<boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::arg<1> >::~storage4() (this=0x55f9aa9ac768, __in_chrg=<optimized out>) at /usr/include/boost/bind/storage.hpp:191
  356. #29 0x000055f9a3c293b0 in boost::_bi::storage5<boost::_bi::value<boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::arg<1>, boost::arg<2> >::~storage5() (this=0x55f9aa9ac768, __in_chrg=<optimized out>) at /usr/include/boost/bind/storage.hpp:240
  357. #30 0x000055f9a3c293cc in boost::_bi::list5<boost::_bi::value<boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::arg<1>, boost::arg<2> >::~list5() (this=0x55f9aa9ac768, __in_chrg=<optimized out>) at /usr/include/boost/bind/bind.hpp:487
  358. #31 0x000055f9a3c293ec in boost::_bi::bind_t<void, void (*)(boost::function<void (bool, PBD::Controllable::GroupControlDisposition)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, bool, PBD::Controllable::GroupControlDisposition), boost::_bi::list5<boost::_bi::value<boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::arg<1>, boost::arg<2> > >::~bind_t() (this=0x55f9aa9ac760, __in_chrg=<optimized out>)
  359.     at /usr/include/boost/bind/bind.hpp:1275
  360. #32 0x000055f9a3c2f99e in boost::detail::function::functor_manager<boost::_bi::bind_t<void, void (*)(boost::function<void (bool, PBD::Controllable::GroupControlDisposition)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, bool, PBD::Controllable::GroupControlDisposition), boost::_bi::list5<boost::_bi::value<boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::arg<1>, boost::arg<2> > > >::manager(boost::detail::function::function_buffer const&, boost::detail::function::function_buffer&, boost::detail::function::functor_manager_operation_type, mpl_::bool_<false>)
  361.    (in_buffer=..., out_buffer=..., op=boost::detail::function::destroy_functor_tag) at /usr/include/boost/function/function_base.hpp:358
  362. #33 0x000055f9a3c2e9b6 in boost::detail::function::functor_manager<boost::_bi::bind_t<void, void (*)(boost::function<void (bool, PBD::Controllable::GroupControlDisposition)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, bool, PBD::Controllable::GroupControlDisposition), boost::_bi::list5<boost::_bi::value<boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::arg<1>, boost::arg<2> > > >::manager(boost::detail::function::function_buffer const&, boost::detail::function::function_buffer&, boost::detail::function::functor_manager_operation_type, boost::detail::function::function_obj_tag)
  363.    (in_buffer=..., out_buffer=..., op=boost::detail::function::destroy_functor_tag) at /usr/include/boost/function/function_base.hpp:379
  364. #34 0x000055f9a3c2d50a in boost::detail::function::functor_manager<boost::_bi::bind_t<void, void (*)(boost::function<void (bool, PBD::Controllable::GroupControlDisposition)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, bool, PBD::Controllable::GroupControlDisposition), boost::_bi::list5<boost::_bi::value<boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::arg<1>, boost::arg<2> > > >::manage(boost::detail::function::function_buffer const&, boost::detail::function::function_buffer&, boost::detail::function::functor_manager_operation_type) (in_buffer=..., out_buffer=..., op=boost::detail::function::destroy_functor_tag)
  365.     at /usr/include/boost/function/function_base.hpp:407
  366. #35 0x000055f9a3c2ad55 in boost::detail::function::basic_vtable2<void, bool, PBD::Controllable::GroupControlDisposition>::clear(boost::detail::function::function_buffer&) const (this=
  367.     0x55f9a471b9f0 <boost::function2<void, bool, PBD::Controllable::GroupControlDisposition>::assign_to<boost::_bi::bind_t<void, void (*)(boost::function<void (bool, PBD::Controllable::GroupControlDisposition)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, bool, PBD::Controllable::GroupControlDisposition), boost::_bi::list5<boost::_bi::value<boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::arg<1>, boost::arg<2> > > >(boost::_bi::bind_t<void, void (*)(boost::function<void (bool, PBD::Controllable::GroupControlDisposition)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, bool, PBD::Controllable::GroupControlDisposition), boost::_bi::list5<boost::_bi::value<boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::arg<1>, boost::arg<2> > >)::stored_vtable>, functor=...) at /usr/include/boost/function/function_template.hpp:510
  368. --Type <RET> for more, q to quit, c to continue without paging--
  369. #36 0x000055f9a3c29d03 in boost::function2<void, bool, PBD::Controllable::GroupControlDisposition>::clear() (this=0x55f9aa9acff0) at /usr/include/boost/function/function_template.hpp:877
  370. #37 0x000055f9a3c29308 in boost::function2<void, bool, PBD::Controllable::GroupControlDisposition>::~function2() (this=0x55f9aa9acff0, __in_chrg=<optimized out>)
  371.     at /usr/include/boost/function/function_template.hpp:761
  372. #38 0x000055f9a3c28f32 in boost::function<void (bool, PBD::Controllable::GroupControlDisposition)>::~function() (this=0x55f9aa9acff0, __in_chrg=<optimized out>)
  373.     at /usr/include/boost/function/function_template.hpp:1050
  374. #39 0x000055f9a3c30426 in std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >::~pair()
  375.    (this=0x55f9aa9acfe0, __in_chrg=<optimized out>) at /usr/include/c++/8/bits/stl_pair.h:208
  376. #40 0x000055f9a3c30452 in __gnu_cxx::new_allocator<std::_Rb_tree_node<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > > >::destroy<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >(std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >*) (this=0x55f9a8705198, __p=0x55f9aa9acfe0) at /usr/include/c++/8/ext/new_allocator.h:140
  377. #41 0x000055f9a3c2f721 in std::allocator_traits<std::allocator<std::_Rb_tree_node<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > > > >::destroy<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >(std::allocator<std::_Rb_tree_node<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > > >&, std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >*) (__a=..., __p=0x55f9aa9acfe0) at /usr/include/c++/8/bits/alloc_traits.h:487
  378. #42 0x000055f9a3c2e7c7 in std::_Rb_tree<boost::shared_ptr<PBD::Connection>, std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, std::_Select1st<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >, std::less<boost::shared_ptr<PBD::Connection> >, std::allocator<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > > >::_M_destroy_node(std::_Rb_tree_node<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >*) (this=0x55f9a8705198, __p=0x55f9aa9acfc0)
  379.     at /usr/include/c++/8/bits/stl_tree.h:661
  380. #43 0x000055f9a3c2d319 in std::_Rb_tree<boost::shared_ptr<PBD::Connection>, std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, std::_Select1st<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >, std::less<boost::shared_ptr<PBD::Connection> >, std::allocator<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > > >::_M_drop_node(std::_Rb_tree_node<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >*) (this=0x55f9a8705198, __p=0x55f9aa9acfc0)
  381.     at /usr/include/c++/8/bits/stl_tree.h:669
  382. #44 0x000055f9a4012a50 in std::_Rb_tree<boost::shared_ptr<PBD::Connection>, std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, std::_Select1st<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >, std::less<boost::shared_ptr<PBD::Connection> >, std::allocator<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > > >::_M_erase(std::_Rb_tree_node<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >*) (this=0x55f9a8705198, __x=0x55f9aa9acfc0)
  383.     at /usr/include/c++/8/bits/stl_tree.h:1874
  384. #45 0x000055f9a401401e in std::_Rb_tree<boost::shared_ptr<PBD::Connection>, std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, std::_Select1st<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >, std::less<boost::shared_ptr<PBD::Connection> >, std::allocator<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > > >::clear()
  385.    (this=0x55f9a8705198) at /usr/include/c++/8/bits/stl_tree.h:1187
  386. #46 0x000055f9a4013ea8 in std::_Rb_tree<boost::shared_ptr<PBD::Connection>, std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, std::_Select1st<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >, std::less<boost::shared_ptr<PBD::Connection> >, std::allocator<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > > >::_M_erase_aux(std::_Rb_tree_const_iterator<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >, std::_Rb_tree_const_iterator<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >)Python Exception <class 'gdb.error'> No type named std::_Rb_tree_node<struct std::pair<const boost::shared_ptr<PBD::Connection>, boost::function<void(bool, PBD::Controllable::GroupControlDisposition)> >>.:
  387. Python Exception <class 'gdb.error'> No type named std::_Rb_tree_node<struct std::pair<const boost::shared_ptr<PBD::Connection>, boost::function<void(bool, PBD::Controllable::GroupControlDisposition)> >>.:
  388.  (this=0x55f9a8705198, __first=..., __last=...)
  389.     at /usr/include/c++/8/bits/stl_tree.h:2504
  390. #47 0x000055f9a4013c54 in std::_Rb_tree<boost::shared_ptr<PBD::Connection>, std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> >, std::_Select1st<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > >, std::less<boost::shared_ptr<PBD::Connection> >, std::allocator<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > > >::erase(boost::shared_ptr<PBD::Connection> const&) (this=0x55f9a8705198, __x=...) at /usr/include/c++/8/bits/stl_tree.h:2518
  391. #48 0x000055f9a4013bd5 in std::map<boost::shared_ptr<PBD::Connection>, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)>, std::less<boost::shared_ptr<PBD::Connection> >, std::allocator<std::pair<boost::shared_ptr<PBD::Connection> const, boost::function<void (bool, PBD::Controllable::GroupControlDisposition)> > > >::erase(boost::shared_ptr<PBD::Connection> const&) (this=0x55f9a8705198, __x=...) at /usr/include/c++/8/bits/stl_map.h:1068
  392. #49 0x000055f9a4013ae5 in PBD::Signal2<void, bool, PBD::Controllable::GroupControlDisposition, PBD::OptionalLastValue<void> >::disconnect(boost::shared_ptr<PBD::Connection>)
  393.    (this=0x55f9a8705180, c=...) at libs/pbd/pbd/signals_generated.h:1119
  394. #50 0x000055f9a3b11cd4 in PBD::Connection::disconnect() (this=0x55f9aa9acd60) at ../libs/pbd/pbd/signals.h:94
  395. #51 0x000055f9a3b11d86 in PBD::ScopedConnection::disconnect() (this=0x55f9aa9ad020) at ../libs/pbd/pbd/signals.h:153
  396. #52 0x000055f9a3b11d46 in PBD::ScopedConnection::~ScopedConnection() (this=0x55f9aa9ad020, __in_chrg=<optimized out>) at ../libs/pbd/pbd/signals.h:147
  397. --Type <RET> for more, q to quit, c to continue without paging--
  398. #53 0x00007efc1d036db7 in PBD::ScopedConnectionList::drop_connections() (this=0x55f9aa9aa5c0) at ../libs/pbd/signals.cc:47
  399. #54 0x00007efc06f7d8e4 in ArdourFeedback::stop() (this=0x55f9aa9aa5a8) at ../libs/surfaces/websockets/feedback.cc:97
  400. #55 0x00007efc06f48f15 in ArdourSurface::ArdourWebsockets::stop() (this=0x55f9aa9aa2d0) at ../libs/surfaces/websockets/ardour_websockets.cc:129
  401. #56 0x00007efc06f48aa3 in ArdourSurface::ArdourWebsockets::~ArdourWebsockets() (this=0x55f9aa9aa2d0, __in_chrg=<optimized out>) at ../libs/surfaces/websockets/ardour_websockets.cc:55
  402. #57 0x00007efc06f48b6c in ArdourSurface::ArdourWebsockets::~ArdourWebsockets() (this=0x55f9aa9aa2d0, __in_chrg=<optimized out>) at ../libs/surfaces/websockets/ardour_websockets.cc:56
  403. #58 0x00007efc1eae7a2d in ARDOUR::ControlProtocolManager::drop_protocols() (this=0x55f9a67610e0) at ../libs/ardour/control_protocol_manager.cc:204
  404. #59 0x00007efc1f06341c in ARDOUR::Session::destroy() (this=0x55f9aa5df400) at ../libs/ardour/session.cc:560
  405. #60 0x00007efc1f0624f0 in ARDOUR::Session::~Session() (this=0x55f9aa5df400, __in_chrg=<optimized out>) at ../libs/ardour/session.cc:457
  406. #61 0x00007efc1f062ce0 in ARDOUR::Session::~Session() (this=0x55f9aa5df400, __in_chrg=<optimized out>) at ../libs/ardour/session.cc:458
  407. #62 0x000055f9a3b377d2 in ARDOUR_UI::finish() (this=0x55f9a6cfd6f0) at ../gtk2_ardour/ardour_ui.cc:1036
  408. #63 0x000055f9a3b659a4 in sigc::bound_mem_functor0<void, ARDOUR_UI>::operator()() const (this=0x55f9a6951f60) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1991
  409. #64 0x000055f9a3b5db4e in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR_UI> >::operator()() const (this=0x55f9a6951f58)
  410.     at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
  411. #65 0x000055f9a3bb63a0 in sigc::retype_return_functor<void, sigc::bound_mem_functor0<void, ARDOUR_UI> >::operator()() (this=0x55f9a6951f50)
  412.     at /usr/include/sigc++-2.0/sigc++/adaptors/retype_return.h:269
  413. #66 0x000055f9a3bb48f9 in sigc::internal::slot_call0<sigc::retype_return_functor<void, sigc::bound_mem_functor0<void, ARDOUR_UI> >, void>::call_it(sigc::internal::slot_rep*)
  414.    (rep=0x55f9a6951f20) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
  415. #67 0x00007efc1caf7dc8 in Glib::SignalProxyNormal::slot0_void_callback(_GObject*, void*) () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
  416. #68 0x00007efc1ca53c8d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  417. #69 0x00007efc1ca66e64 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  418. #70 0x00007efc1ca702be in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  419. #71 0x00007efc1ca7097f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  420. #72 0x00007efc1c542190 in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  421. #73 0x00007efc1d1ae16e in Gtkmm2ext::Bindings::activate(Gtkmm2ext::KeyboardKey, Gtkmm2ext::Bindings::Operation) (this=0x55f9a6d4c920, kb=..., op=Gtkmm2ext::Bindings::Press)
  422.     at ../libs/gtkmm2ext/bindings.cc:498
  423. #74 0x000055f9a3bbd603 in ARDOUR_UI::key_press_focus_accelerator_handler(Gtk::Window&, _GdkEventKey*, Gtkmm2ext::Bindings*) (this=0x55f9a6cfd6f0, window=..., ev=0x55f9a9613580, bindings=0x0)
  424.     at ../gtk2_ardour/ardour_ui_keys.cc:230
  425. #75 0x000055f9a3bbcb45 in ARDOUR_UI::key_event_handler(_GdkEventKey*, Gtk::Window*) (this=0x55f9a6cfd6f0, ev=0x55f9a9613580, event_window=0x55f9a6cfda10)
  426.     at ../gtk2_ardour/ardour_ui_keys.cc:103
  427. #76 0x000055f9a3b7445c in sigc::bound_mem_functor2<bool, ARDOUR_UI, _GdkEventKey*, Gtk::Window*>::operator()(_GdkEventKey* const&, Gtk::Window* const&) const
  428.    (this=0x55f9ab28a210, _A_a1=@0x7fff7b650838: 0x55f9a9613580, _A_a2=@0x55f9ab28a230: 0x55f9a6cfda10) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:2143
  429. #77 0x000055f9a3b6f633 in sigc::adaptor_functor<sigc::bound_mem_functor2<bool, ARDOUR_UI, _GdkEventKey*, Gtk::Window*> >::operator()<_GdkEventKey* const&, Gtk::Window*&>(_GdkEventKey* const&, Gtk::Window*&) const (this=0x55f9ab28a208, _A_arg1=@0x7fff7b650838: 0x55f9a9613580, _A_arg2=@0x55f9ab28a230: 0x55f9a6cfda10) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:108
  430. #78 0x000055f9a3b68a59 in sigc::bind_functor<-1, sigc::bound_mem_functor2<bool, ARDOUR_UI, _GdkEventKey*, Gtk::Window*>, Gtk::Window*, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::operator()<_GdkEventKey* const&>(_GdkEventKey* const&) (this=0x55f9ab28a200, _A_arg1=@0x7fff7b650838: 0x55f9a9613580) at /usr/include/sigc++-2.0/sigc++/adaptors/bind.h:1136
  431. #79 0x000055f9a3b6076c in sigc::internal::slot_call1<sigc::bind_functor<-1, sigc::bound_mem_functor2<bool, ARDOUR_UI, _GdkEventKey*, Gtk::Window*>, Gtk::Window*, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, bool, _GdkEventKey*>::call_it(sigc::internal::slot_rep*, _GdkEventKey* const&) (rep=0x55f9ab28a1d0, a_1=@0x7fff7b650838: 0x55f9a9613580)
  432.     at /usr/include/sigc++-2.0/sigc++/functors/slot.h:170
  433. #80 0x00007efc1bc92acb in  () at /usr/lib/x86_64-linux-gnu/libgtkmm-2.4.so.1
  434. #81 0x00007efc1c6001eb in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  435. #82 0x00007efc1ca53c8d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  436. #83 0x00007efc1ca67365 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  437. #84 0x00007efc1ca6f9ab in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  438. #85 0x00007efc1ca7097f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  439. #86 0x00007efc1c716cac in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  440. #87 0x00007efc1c5fe55d in gtk_propagate_event () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  441. #88 0x00007efc1c5fe87b in gtk_main_do_event () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  442. #89 0x00007efc1c471bac in  () at /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
  443. #90 0x00007efc1c971f2e in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  444. #91 0x00007efc1c9721c8 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  445. #92 0x00007efc1c9724c2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  446. --Type <RET> for more, q to quit, c to continue without paging--
  447. #93 0x00007efc1c5fd8e7 in gtk_main () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  448. #94 0x00007efc1d1d2ba4 in Gtkmm2ext::UI::run(Receiver&) (this=0x55f9a6cfd6f0, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:290
  449. #95 0x000055f9a40bea1e in main(int, char**) (argc=1, argv=0x7fff7b651388) at ../gtk2_ardour/main.cc:430
  450. (gdb)
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